NEITHER  CANADIAN SECURITIES  COMMISSIONS NOR  THE UNITED  STATES SECURITIES AND
EXCHANGE COMMISSION  NOR  ANY  STATE SECURITIES  COMMISSIONS  HAVE  APPROVED  OR
DISAPPROVED   OF   THE  PROPOSED   ARRANGEMENT   INVOLVING  HEMOSOL   INC.,  ITS
SECURITYHOLDERS AND  MDS INC.,  OR PASSED  UPON THE  MERITS OR  FAIRNESS OF  THE
ARRANGEMENT  OR UPON  THE ADEQUACY OR  ACCURACY OF THE  INFORMATION CONTAINED IN
THIS NOTICE OF ANNUAL AND  SPECIAL MEETING AND MANAGEMENT INFORMATION  CIRCULAR.
ANY REPRESENTATION TO THE CONTRARY IS A CRIMINAL OFFENCE.

                                 (HEMOSOL LOGO)

                             ARRANGEMENT INVOLVING
                                 HEMOSOL INC.,
                              ITS SECURITYHOLDERS
                                      AND
                                    MDS INC.

                           ANNUAL AND SPECIAL MEETING
                       OF SECURITYHOLDERS OF HEMOSOL INC.
                          TO BE HELD ON APRIL 20, 2004

                      NOTICE OF ANNUAL AND SPECIAL MEETING
                                      AND
                        MANAGEMENT INFORMATION CIRCULAR

                                 March 10, 2004

It  may be difficult  for shareholders of  Hemosol Inc. who  are resident in the
United States to enforce their rights and any claim they may have arising  under
the  United States federal securities laws, since  Hemosol Inc. and MDS Inc. are
incorporated and  organized  under  the  laws  of  Canada,  and  some  of  their
respective  officers  and directors  are  residents of  Canada.  Shareholders of
Hemosol Inc. who  are resident in  the United States  may not be  able to sue  a
Canadian company or its officers or directors in a Canadian court for violations
of  the United States securities laws. It  may be difficult to compel a Canadian
company and its  affiliates to  subject themselves  to a  United States  court's
judgment.


                                 (HEMOSOL LOGO)

March 10, 2004

Dear Securityholders:

As  you  may  be aware,  Hemosol  Inc. has  signed  an agreement  with  MDS Inc.
regarding a  proposed  reorganization  of Hemosol's  business  that  will  allow
Hemosol's business to exchange, in effect, a significant portion of its existing
and  unutilized income tax  losses and other  tax assets for  a $16 million cash
infusion.

Hemosol needs  additional  cash as  existing  financial resources  will  not  be
sufficient  to allow Hemosol to continue activities after June 2004. In light of
Hemosol's current financial  condition, the cash  resources required to  exploit
Hemosol's  technologies and other opportunities,  coupled with the dilutive cost
and other limitations of raising equity capital, this transaction is critical to
Hemosol's success. The proceeds from the proposed transaction will allow Hemosol
to continue the development of HEMOLINK(TM) and its other product candidates  as
well  as to advance  the implementation of the  recently announced alliance with
ProMetic.

As the proposed  transaction requires the  approval of Hemosol  securityholders,
you  are invited to attend an  annual and special meeting to  be held at the TSX
Broadcast Centre, Gallery Room, 130 King Street West, Toronto, Ontario on  April
20,  2004 at 10:00 a.m. (Toronto time) to consider the proposed transaction, the
annual meeting matters and the other matters outlined in the accompanying notice
of meeting.

The proposed transaction is to be  implemented through an arrangement under  the
Business  Corporations Act (Ontario) involving  Hemosol, its securityholders and
MDS. The key components of the proposed transaction are:

     -  Shareholders of Hemosol will  retain 93% of  their existing interest  in
        the  business of Hemosol which will be  transferred, in effect, to a new
        corporate entity  to  be named  Hemosol  Corp. (New  Hemosol).  Existing
        shares of Hemosol will be exchanged for an equal number of shares of New
        Hemosol.

     -  Hemosol  will be renamed LPBP Inc.  (Labco) and will acquire, in effect,
        MDS's Ontario clinical laboratory services business.

     -  The remaining 7% interest in the business of Hemosol will be retained by
        Labco (MDS will own 99.56% of the equity of Labco, representing not more
        than 47.5%  of the  voting  securities) and,  as compensation  for  such
        retention, each Hemosol shareholder (other than MDS) will receive:

       -  one  Class  A  share of  Labco  for  each Hemosol  share  that  in the
          aggregate will participate in 0.44%  of the annual distributions  from
          Labco; and

       -  the  benefit of  reduced dilution through  a reduction  of 2.5 million
          warrants of  Hemosol with  an exercise  price of  $1 to  which MDS  is
          entitled  in  connection with  its  guarantee of  Hemosol's  2002 bank
          facility.

     -  The proposed transaction will  result in the  exchange of a  significant
        portion  of the existing and unutilized  income tax losses and other tax
        assets historically generated  by Hemosol's business  for a $16  million
        cash infusion into New Hemosol.

     -  Outstanding  warrants and options to  acquire Hemosol shares will become
        warrants and options  to acquire  New Hemosol  shares. There  will be  a
        $0.04  reduction in  exercise price  because these  warrants and options
        will not be exercisable into  the new Class A  shares to be received  by
        existing shareholders.

The  independent committee of the Hemosol  board formed to consider the proposed
transaction believes  that the  exchange of  7% of  Hemosol's business  for  the
interest  in MDS's Ontario clinical laboratory services business, as well as the
reduction in dilution  resulting from the  2.5 million warrant  decrease, is  an
exchange  of  comparable  values  for Hemosol  shareholders  and  should  not be
considered as dilutive.

The resolution approving the proposed transaction  must be approved by at  least
two-thirds  of the votes  cast by Hemosol securityholders  (voting together as a
single class) at  the meeting, and  by a simple  majority of the  votes cast  by
shareholders  at the  meeting, excluding  the votes  of MDS  and certain related
persons. Shareholders will be


entitled to one  vote per share,  holders of Hemosol  warrants (other than  MDS)
will  be entitled to one vote per warrant  and holders of broker options will be
entitled to one and one-half votes per broker option.

The independent  committee of  the  Hemosol board  and  the Hemosol  board  have
concluded  that the proposed transaction is in the best interests of Hemosol and
is fair, from a financial point of view, to Hemosol securityholders, other  than
MDS   and   its  affiliates.   THE   HEMOSOL  BOARD   RECOMMENDS   THAT  HEMOSOL
SECURITYHOLDERS VOTE IN FAVOUR OF THE PROPOSED TRANSACTION.

Among the factors considered by the independent committee and the Hemosol  board
was  the  opinion  of KPMG  Corporate  Finance Inc.,  the  independent financial
advisor to the  independent committee,  that the proposed  transaction is  fair,
from  a financial point of view, to  Hemosol securityholders, other than MDS and
its affiliates.

The accompanying management information circular provides a detailed description
of  the  proposed   transaction.  Please   give  this   material  your   careful
consideration  and, if  you require assistance,  consult your  financial, tax or
other professional advisors.

On behalf of the Hemosol board and my colleagues, I would like to emphasize  the
importance  we see in  this transaction to  Hemosol's future and  its ability to
deliver the investment returns we believe exist within its assets. We hope  that
you  will be able to attend the meeting.  Whether or not you are able to attend,
we would encourage you to sign and return your proxy (printed on blue paper  for
shareholders  of Hemosol and,  if applicable, on  green paper for warrantholders
and holders of broker options of Hemosol) to ensure that your vote is recorded.

Yours very truly,

(signed) LEE D. HARTWELL
Lee D. Hartwell
President, Chief Executive Officer &
Chief Financial Officer


                                 (HEMOSOL LOGO)

            NOTICE OF ANNUAL AND SPECIAL MEETING OF SECURITYHOLDERS

     NOTICE IS HEREBY GIVEN that an  annual and special meeting (the  "Meeting")
of  shareholders  (the  "Shareholders"), warrantholders  and  holders  of broker
options (collectively, the "Securityholders")  of Hemosol Inc. ("Hemosol")  will
be  held  at the  TSX  Broadcast Centre,  Gallery  Room, 130  King  Street West,
Toronto, Ontario  on  April  20, 2004  at  10:00  a.m. (Toronto  time)  for  the
following purposes:

     1.    for Securityholders to consider, pursuant to an order of the Superior
           Court  of  Justice  of  Ontario dated  March  9,  2004  (the "Interim
           Order"), and, if deemed advisable, pass, with or without variation, a
           special resolution (the "Arrangement  Resolution"), the full text  of
           which  is  set  forth  in  Annex  A  to  the  accompanying Management
           Information  Circular   (the  "Circular"),   approving  a   plan   of
           arrangement  (the "Proposed  Arrangement") under  section 182  of the
           Business  Corporations   Act   (Ontario)   involving   Hemosol,   the
           Securityholders and MDS Inc.;

     2.    for Shareholders to consider the following annual meeting matters:

        (a)  to  receive and consider the annual financial statements of Hemosol
             for the year ended December 31, 2003 and the report of the auditors
             thereon;

        (b)  to elect the directors of Hemosol; and

        (c)  to appoint the auditors of  Hemosol and to authorize the  directors
             to fix their remuneration;

     3.    for  Shareholders to  consider the  following items  of other special
           business:

        (a)  to consider  and,  if  deemed  advisable,  pass,  with  or  without
             variation,  an ordinary resolution,  the full text  of which is set
             forth in the accompanying Circular,  approving an amendment to  the
             Amended and Restated Stock Option Plan of Hemosol dated December 7,
             2000  to increase  the maximum number  of common  shares of Hemosol
             reserved for  issuance thereunder  from 3,031,712  to 5,499,298  in
             order to ratify the conditional grant of certain stock options;

        (b)  if the Arrangement Resolution is passed, to consider and, if deemed
             advisable, pass, with or without variation, an ordinary resolution,
             the  full text of which is  set forth in the accompanying Circular,
             approving a stock option plan for Hemosol Corp., which will be  the
             successor   to  Hemosol's  current   business  under  the  Proposed
             Arrangement; and

        (c)  if the Arrangement Resolution is passed, to consider and, if deemed
             advisable, pass, with or without variation, an ordinary resolution,
             the full text of which is  set forth in the accompanying  Circular,
             approving an amendment and restatement of the by-laws of LPBP Inc.,
             as Hemosol will be renamed under the Proposed Arrangement; and

     4.    to transact such other business as may properly be brought before the
           Meeting and any postponement(s) or adjournment(s) thereof.

     Only  Securityholders of record at the close of business on March 17, 2004,
the record date for the Meeting, will be entitled to notice of, to attend and to
vote at,  the  Meeting and  any  postponement(s) or  adjournment(s)  thereof  in
respect   of  the   relevant  resolution(s),  except   to  the   extent  that  a
Securityholder has  transferred  any securities  of  Hemosol subsequent  to  the
record  date and the new holder  of such securities establishes proper ownership
and requests,  not less  than 10  days before  the date  of the  Meeting, to  be
included  in the  list of  Securityholders eligible  to vote  at the  Meeting in
respect of the relevant resolution(s).

     Whether or  not you  intend to  attend the  Meeting, you  are requested  to
complete the enclosed form of proxy (printed on blue paper for Shareholders and,
if  applicable, on green paper for  Securityholders who are not Shareholders) in
accordance with the instructions set out therein and in the Circular and  return
the  form of proxy in the appropriate  envelope provided for that purpose. To be
effective, proxies must be received either by mail or


delivery addressed to Computershare  Trust Company of  Canada at 100  University
Avenue,  9(th)  Floor, Toronto,  Ontario M5J  2Y1 or  by facsimile  toll-free at
1-866-249-7775 (or in the Toronto area at (416) 263-9524), in each case prior to
5:00 p.m. (Toronto time) on  April 16, 2004 or, if  the Meeting is adjourned  or
postponed,  not less than  48 hours (excluding  Saturdays, Sundays and holidays)
before the time the adjourned Meeting is reconvened or the postponed Meeting  is
convened.  Proxies may also be deposited with the scrutineers of the Meeting, to
the attention  of the  chair of  the Meeting,  at or  immediately prior  to  the
commencement of the Meeting or any postponement(s) or adjournment(s) thereof.

DATED at Toronto, Ontario this 10(th) day of March, 2004.

BY ORDER OF THE BOARD OF DIRECTORS,

(signed) LEE D. HARTWELL
Lee D. Hartwell
President, Chief Executive Officer & Chief Financial Officer


                               SUMMARY TERM SHEET

     The  following term  sheet highlights  the material  terms of  the proposed
arrangement described in this management information circular. This summary term
sheet is qualified in  its entirety by the  more detailed information  appearing
elsewhere in this circular. You are urged to read carefully this entire document
and  the documents which are referred to  in this document. In this summary term
sheet, references to "we", "our", "us" and "Hemosol" refer to Hemosol Inc. Under
the arrangement, Hemosol will  change its name to  LPBP Inc., and references  to
"Labco"  in this circular  refer to LPBP  Inc. All amounts  in this circular are
expressed in Canadian  dollars unless otherwise  specifically indicated.  Unless
otherwise  specifically indicated, the information contained in this circular is
presented as at March 10, 2004.

MEETING:                   On April 20, 2004, we will hold an annual and special
                           meeting  of   our  securityholders   (including   our
                           shareholders,  warrantholders  and holders  of broker
                           options) at which  you will be  asked to consider  an
                           arrangement   under  section  182   of  the  Business
                           Corporations Act  (Ontario)  involving  Hemosol,  its
                           securityholders  and MDS  Inc., which we  refer to as
                           MDS. We will  also ask our  shareholders to  consider
                           and  vote  on the  other matters  referred to  in the
                           accompanying Notice of Annual and Special Meeting.

                           The annual and  special meeting will  be held at  the
                           TSX  Broadcast Centre, Gallery  Room, 130 King Street
                           West, Toronto,  Ontario on  Tuesday, April  20,  2004
                           commencing at 10:00 a.m. (Toronto time).

                           See  "Annual Meeting and  Other Special Business" and
                           "General Proxy Matters".

RECOMMENDATION OF THE BOARD
OF DIRECTORS:              OUR BOARD  OF  DIRECTORS,  HAVING  CONSIDERED,  AMONG
                           OTHER  THINGS, THE  REASONS FOR  THE ARRANGEMENT, THE
                           RECOMMENDATIONS OF THE  INDEPENDENT COMMITTEE OF  OUR
                           BOARD  OF DIRECTORS  THAT WAS FORMED  TO EVALUATE THE
                           ARRANGEMENT, AND  THE  FAIRNESS OPINION  PROVIDED  BY
                           KPMG  CORPORATE FINANCE  INC., WHICH  WE REFER  TO AS
                           KPMG, HAS DETERMINED THAT  THE ARRANGEMENT IS IN  THE
                           BEST  INTERESTS  OF  HEMOSOL  AND  IS  FAIR,  FROM  A
                           FINANCIAL  POINT  OF  VIEW,  TO  SECURITYHOLDERS   OF
                           HEMOSOL  (OTHER  THAN  MDS  AND  ITS  AFFILIATES) AND
                           RECOMMENDS  THAT   YOU   VOTE  IN   FAVOUR   OF   THE
                           ARRANGEMENT.

                           See "Special Factors -- Recommendation of the Hemosol
                           Board".

RECORD DATE:               The    record   date   for   the   determination   of
                           securityholders entitled to notice of and to vote  at
                           the annual and special meeting is March 17, 2004.

SECURITYHOLDER APPROVAL:   In order to proceed, the arrangement must be approved
                           by:

                           -  at  least  two-thirds  of all  the  votes  cast by
                              securityholders (other than MDS in its capacity of
                              warrantholder) voting together as a single  class,
                              in  person or by proxy,  at the annual and special
                              meeting; and

                           -  a majority of all  the votes cast by  shareholders
                              (excluding  the votes  of MDS  and certain related
                              persons) voting,  in person  or by  proxy, at  the
                              annual and special meeting.

                           See "The Arrangement -- Securityholder Approvals".

PURPOSE OF THE ARRANGEMENT:The  purpose of the  arrangement is to  provide a $16
                           million  cash  infusion   into  our  blood   products
                           business  through  the utilization  of  a significant
                           portion of our accumulated and unutilized tax  losses
                           and   other  tax   assets.  We   have  accumulated  a
                           significant amount of  tax losses  from our  research
                           and  development  activities to  date  and we  do not
                           expect to be able to generate sufficient revenue from
                           our blood  products  business  in the  near  term  to
                           utilize such losses.


EFFECTS OF THE ARRANGEMENT:Under the arrangement:

                           -  You  will receive one common  share of New Hemosol
                              and one Class A common share of Labco in  exchange
                              for each common share of Hemosol that you hold.

                           -  Our outstanding convertible securities will become
                              convertible  securities to  purchase common shares
                              of New Hemosol  on identical terms  (other than  a
                              reduction of the exercise price by $0.04 per share
                              to   account   for  the   fact   that  convertible
                              securityholders will  not be  entitled to  receive
                              Class A common shares of Labco on exercise).

                           -  Our  stock  options  will be  replaced  with stock
                              options to purchase common  shares of New  Hemosol
                              with  the same  vesting and exercise  terms and an
                              exercise price equal to the exercise price of  the
                              existing  stock  option  less  $0.04,  except that
                              certain holders  of our  stock options  will  only
                              receive stock options to purchase common shares of
                              New  Hemosol in respect of stock options that were
                              conditionally  granted  to  them  in  2003  as   a
                              retention  incentive (which  grants you  are being
                              asked to ratify at the meeting) and not in respect
                              of other stock options.

THE ARRANGEMENT:           The arrangement  involves  a  reorganization  of  our
                           blood  products business  and MDS's  Ontario clinical
                           laboratory services business. Under the arrangement:

                           -  We will transfer  effective ownership and  control
                              of  our existing blood products  business to a new
                              entity to be called Hemosol Corp., which we  refer
                              to as New Hemosol.

                           -  MDS  will  transfer  effective  ownership  of  its
                              Ontario clinical laboratory  services business  to
                              Hemosol.

                           -  Hemosol will change its name to LPBP Inc. and will
                              be referred to as Labco.

                           -  Operational   control  of   the  Ontario  clinical
                              laboratory  services  business  will,  in  effect,
                              remain with MDS.

                           -  Labco  will  retain a  7%  equity interest  in our
                              blood products business.

                           -  New Hemosol will  receive a cash  infusion of  $16
                              million.

                           -  Labco  will  be  able to  utilize  its  income tax
                              losses against  income from  the Ontario  clinical
                              laboratory  services business and  income, if any,
                              from Labco's  7% interest  in our  blood  products
                              business.

                           -  The shareholdings of New Hemosol immediately after
                              the  arrangement will be on the same proportionate
                              basis as the shareholdings of Hemosol  immediately
                              prior  to  the  arrangement.  The  Class  A common
                              shares of Labco issued to our shareholders  (other
                              than  MDS) will represent an aggregate of 0.44% of
                              the equity of Labco, but  will have not less  than
                              52.5% of the aggregate number of votes attached to
                              all  shares of Labco.  MDS will own  99.56% of the
                              equity of Labco  through a  combination of  voting
                              and non-voting shares.

                           -  MDS  will surrender 2.5 million  of its 10 million
                              warrants to purchase common shares of Hemosol that
                              it currently holds or has the right to receive  in
                              certain circumstances.

                           See "The Arrangement -- Transaction Steps Outside the
                           Plan  of Arrangement" and "-- Transaction Steps Under
                           the Plan of Arrangement".

                                       (ii)


FAIRNESS OPINION:          KPMG  has  provided  an  opinion  to  our  board   of
                           directors  and  to the  independent committee  of our
                           board of directors that the arrangement is fair, from
                           a financial  point of  view, to  our  securityholders
                           (other than MDS and its affiliates).

                           See  "Special Factors  -- KPMG  Fairness Opinion" and
                           "Annex E -- KPMG Fairness Opinion".

INDEPENDENT COMMITTEE:     Our board of directors has established an independent
                           committee to  evaluate the  arrangement, oversee  the
                           negotiation  of the terms of the arrangement and make
                           a recommendation to the entire board. The independent
                           committee has determined that  the arrangement is  in
                           Hemosol's   best  interests  and   is  fair,  from  a
                           financial  point  of  view,  to  our  securityholders
                           (other   than  MDS   and  its   affiliates)  and  has
                           recommended that our board of directors recommend  to
                           the  securityholders that they vote  in favour of the
                           arrangement.

                           See  "Special  Factors   --  Recommendation  of   the
                           Independent Committee".

NO DISSENT RIGHTS:         You  will not have  any right to  dissent and be paid
                           the fair value of your securities in connection  with
                           the arrangement.

                           See "The Arrangement -- Court Approval".

SPECIAL FACTORS:           For  a  more  detailed  description  of  the  matters
                           relating to the  (i) purposes, alternatives,  reasons
                           and  effects of the arrangement, (ii) fairness of the
                           arrangement and (iii)  reports, opinions,  appraisals
                           and  negotiations  relating to  the  arrangement, see
                           "Special Factors -- Purpose of the Arrangement",  "--
                           Background  to  the  Arrangement",  "--  Alternatives
                           Considered", "--  Reasons for  the Arrangement",  "--
                           Effects  of the  Arrangement", "--  Recommendation of
                           the Independent Committee", "-- Recommendation of the
                           Hemosol  Board",  "--  KPMG  Fairness  Opinion",  "--
                           Management  Projections", "-- Reasons Why MDS and MDS
                           Subco Consider the Arrangement to be Fair to  Non-MDS
                           Securityholders"    and    "--   Draft    Report   of
                           PricewaterhouseCoopers LLP".

RISK FACTORS:              In deciding whether  to approve  the arrangement,  we
                           urge  you to  consider the risk  factors described in
                           this circular.  See "Risk  Factors" and  "Income  Tax
                           Considerations".

U.S. SHAREHOLDERS:         U.S.  shareholders  should  consider  that  they will
                           likely be treated as receiving a taxable distribution
                           of New  Hemosol Shares  from Labco  for U.S.  federal
                           income  tax purposes.  If Labco is  treated as having
                           earnings and  profits  for the  taxable  year  ending
                           October  31, 2004, then the  fair market value of the
                           deemed  distribution  will  generally  be  taxed   as
                           ordinary  income to  the extent of  such earnings and
                           profits. Hemosol believes that Labco should not  have
                           earnings  and  profits  for the  taxable  year ending
                           October 31, 2004.  However, U.S. shareholders  should
                           consider  the risk  that for the  taxable year ending
                           October 31,  2004, Labco  may  be treated  as  having
                           earnings  and profits. See "Income Tax Considerations
                           --  Certain   United   States  Federal   Income   Tax
                           Considerations"  and "Risk Factors  -- Risks Relating
                           to Labco  --  US Holders  of  Hemosol Shares  may  be
                           treated  as  receiving  a  taxable  distribution from
                           Labco for U.S. federal income tax purposes".

                                      (iii)


                               TABLE OF CONTENTS

<Table>
                                                            
SUMMARY.....................................................     5
FORWARD-LOOKING STATEMENTS..................................    13
PRESENTATION OF FINANCIAL INFORMATION.......................    13
CURRENCY EXCHANGE RATES.....................................    13
NOTICE REGARDING INFORMATION................................    14
SPECIAL FACTORS.............................................    15
  Purpose of the Arrangement................................    15
  Background to the Arrangement.............................    15
  Alternatives Considered...................................    17
  Reasons for the Arrangement...............................    17
  Effects of the Arrangement................................    17
  Recommendation of the Independent Committee...............    19
  Recommendation of the Hemosol Board.......................    20
  KPMG Fairness Opinion.....................................    21
  Management Projections....................................    27
  Reasons Why MDS and MDS Subco Consider the Arrangement to
     be Fair to Non-MDS Securityholders.....................    28
  Draft Report of PricewaterhouseCoopers LLP................    30
THE ARRANGEMENT.............................................    34
  Pre-Arrangement Organizational Structure..................    34
  Transaction Steps Outside the Plan of Arrangement.........    34
  Transaction Steps Under the Plan of Arrangement...........    35
  Post-Arrangement Organizational Structure.................    37
  Treatment of Hemosol Convertible Securities in Connection
     with the Arrangement...................................    38
  Treatment of Hemosol Options in Connection with the
     Arrangement............................................    39
  Mutual Conditions.........................................    39
  Conditions in Favour of Hemosol...........................    40
  Conditions in Favour of MDS...............................    40
  Non-Solicitation..........................................    40
  Termination and Expense Reimbursement.....................    40
  Other Terms of the Arrangement Agreement..................    41
  Escrow Agreement..........................................    41
  Indemnity Agreements......................................    42
  Securityholder Approvals..................................    42
  Court Approval............................................    42
  Toronto Stock Exchange and NASDAQ Listings................    43
  Distribution of Share Certificates........................    43
  Eligibility for Investment in Canada......................    43
  Source of Funds...........................................    44
  Expenses of the Arrangement...............................    44
  Accounting Treatment of the Arrangement...................    44
  Agreement of MDS to Vote in Favour of the Arrangement.....    44
  Interests of Certain Persons in the Arrangement...........    44
</Table>

                                        1

<Table>
                                                            
HEMOSOL PRIOR TO THE ARRANGEMENT............................    45
  Clinical Trials and Non-Clinical Analyses.................    45
  Management and Employees..................................    46
  Strategic Alliance with ProMetic..........................    46
  Bio-Manufacturing Services................................    48
  Other Products............................................    48
  Property..................................................    48
  Significant Corporate Transactions........................    48
  Credit Facility...........................................    48
  Clinical Trial Support Services...........................    50
  NASDAQ Listing Qualifications Panel Hearing...............    50
  Special Warrant Offering..................................    50
  January Special Meeting...................................    51
  Consolidated Capitalization...............................    51
  Price Range and Trading Volume of Hemosol Shares..........    52
  Ownership of Securities...................................    53
  Securities Transactions...................................    55
  Dividend Policy...........................................    55
  Previous Distributions....................................    55
  Documents Incorporated by Reference.......................    56
NEW HEMOSOL AFTER THE ARRANGEMENT...........................    58
  New Hemosol...............................................    58
  Share Capital.............................................    58
  Principal Shareholders....................................    59
  Directors and Officers....................................    59
  Employees.................................................    59
  New Hemosol Convertible Securities........................    59
  New Hemosol Stock Option Plan.............................    59
  Selected New Hemosol Historical and Pro Forma Financial
     Information............................................    60
  Registered Office.........................................    60
LABCO AFTER THE ARRANGEMENT.................................    61
  Labco After the Arrangement...............................    61
  Objects...................................................    61
  Description of Share Capital..............................    62
  Principal Shareholders....................................    68
  Directors and Officers....................................    68
  Change of Fiscal Year-End.................................    68
  Registered Office.........................................    69
  Auditors, Transfer Agent and Registrar of Labco...........    69
  Material Contracts of Labco...............................    69
  Interests of Management and Others in Material
     Transactions...........................................    69
  Selected Labco Pro Forma Financial Information............    69
</Table>

                                        2

<Table>
                                                            
THE BLOOD PRODUCTS PARTNERSHIP AFTER THE ARRANGEMENT........    70
  General...................................................    70
  Business of the Blood Products Partnership................    70
  Distributions and Allocation of Profit and Loss...........    70
  Reimbursement of General Partner Expenses.................    70
  No Removal of General Partner.............................    70
  Term......................................................    71
  Transfer of Units.........................................    71
  Employees.................................................    71
  Financial Information.....................................    71
THE LABS PARTNERSHIP AFTER THE ARRANGEMENT..................    72
  General...................................................    72
  Distributions and Allocation of Profit and Loss...........    72
  Removal of General Partner................................    72
  Term......................................................    72
  U.S. Tax Election.........................................    73
  Labs Management Agreement.................................    73
  Transfer of Units.........................................    73
  Business of the Labs Partnership..........................    73
  Unaudited Summary Financial Information Concerning the
     Labs Business..........................................    78
  Management's Discussion and Analysis......................    80
REGULATORY MATTERS..........................................    82
  Securities Law Matters....................................    82
  OSC Rule 61-501 and AMF Policy Q-27.......................    83
  Financial Information Exemption...........................    83
  Competition Act (Canada)..................................    84
  HSR Act...................................................    84
INCOME TAX CONSIDERATIONS...................................    85
  Certain Canadian Federal Income Tax Considerations........    85
  Certain United States Federal Income Tax Considerations...    88
  Residents of Jurisdictions Outside Canada and the United
     States.................................................    95
RISK FACTORS................................................    96
  Risks Relating to New Hemosol.............................    96
  Risks Relating to the Blood Products Partnership..........    96
  Risks Relating to Labco...................................   102
  Risks Relating to the Labs Partnership....................   104
ANNUAL MEETING AND OTHER SPECIAL BUSINESS...................   107
  Election of Directors.....................................   107
  Appointment of Auditors...................................   108
  Executive Compensation....................................   109
  Human Resources and Compensation Committee Report.........   110
  Performance Graph.........................................   112
  Directors' Compensation...................................   112
  Interest of Insiders in Material Transactions.............   112
</Table>

                                        3

<Table>
                                                            
  Corporate Governance......................................   113
  Directors' and Officers' Insurance........................   117
  Ratification of Conditional Grants of Options.............   117
  Approval of New Hemosol Stock Option Plan.................   118
  Approval of Amended and Restated Labco By-Laws............   118
GENERAL PROXY MATTERS.......................................   119
  Purpose of the Meeting....................................   119
  Date, Time and Place of Meeting...........................   119
  Solicitation of Proxies...................................   119
  Appointment of Proxyholder................................   119
  Non-Registered Holders....................................   120
  Revocation of Proxy.......................................   120
  Exercise of Vote by Proxy.................................   120
  Quorum, Record Date and Entitlement to Vote...............   121
  Voting Securities and Principal Holders Thereof...........   121
  Procedure and Votes Required..............................   121
ADDITIONAL INFORMATION......................................   123
APPROVAL OF HEMOSOL.........................................   123
AUDITORS' CONSENT...........................................   124
     SCHEDULE 1 -- GLOSSARY OF TERMS........................   125
     ANNEX A -- FORM OF ARRANGEMENT RESOLUTION..............   A-1
     ANNEX B -- NOTICE OF APPLICATION.......................   B-1
     ANNEX C -- INTERIM ORDER...............................   C-1
     ANNEX D -- ARRANGEMENT AGREEMENT AND PLAN OF
      ARRANGEMENT...........................................   D-1
     ANNEX E -- KPMG FAIRNESS OPINION.......................   E-1
     ANNEX F -- NEW HEMOSOL STOCK OPTION PLAN...............   F-1
     ANNEX G -- SUMMARY HISTORICAL FINANCIAL INFORMATION FOR
      HEMOSOL...............................................   G-1
     ANNEX H -- BALANCE SHEET OF NEW HEMOSOL................   H-1
     ANNEX I -- PRO FORMA FINANCIAL STATEMENTS FOR NEW
      HEMOSOL...............................................   I-1
     ANNEX J -- PRO FORMA FINANCIAL STATEMENTS FOR LABCO....   J-1
     ANNEX K -- DIRECTORS AND OFFICERS OF HEMOSOL...........   K-1
     ANNEX L -- DIRECTORS AND OFFICERS OF MDS AND MDS
      SUBCO.................................................   L-1
     ANNEX M -- AMENDED AND RESTATED LABCO BY-LAWS..........   M-1
</Table>

                                        4


                                    SUMMARY

     The following summarizes certain  material information contained  elsewhere
in  this Circular. This summary is not  intended to be complete and is qualified
in its entirety  by the more  detailed information contained  elsewhere in  this
Circular  and in  the documents  incorporated by  reference. Securityholders are
urged to  read  this  Circular  and  the  documents  incorporated  by  reference
carefully   and  in  their  entirety.  Capitalized  terms  used  herein  without
definition are defined in the Glossary of Terms or elsewhere in this Circular.

PURPOSE OF THE MEETING

     The purpose of the Meeting is for:

     -  Securityholders to  consider and,  if deemed  advisable, pass,  with  or
        without variation, the Arrangement Resolution to approve the Arrangement
        under section 182 of the OBCA;

     -  Shareholders   to  conduct  the  annual  meeting  business  of  Hemosol,
        including electing directors,  appointing auditors  and authorizing  the
        Hemosol Board to fix the auditors' remuneration; and

     -  Shareholders to consider, and if deemed advisable, pass, with or without
        variation,   resolutions  to  approve  the  Hemosol  Stock  Option  Plan
        Amendment in order to  ratify the conditional  grant of certain  options
        and,  if the  Arrangement Resolution  is passed,  the New  Hemosol Stock
        Option Plan and the Amended and Restated Labco By-Laws.

DATE, TIME AND PLACE

     The Meeting will  be held on  Tuesday, April 20,  2004 commencing at  10:00
a.m.  (Toronto time) at the TSX Broadcast  Centre, Gallery Room, 130 King Street
West, Toronto, Ontario.

SECURITYHOLDER APPROVALS FOR THE ARRANGEMENT

     The Interim Order provides that, for the Arrangement to be implemented, the
Arrangement Resolution must be passed, with or without variation, by:

     -  at least  two-thirds of  all the  votes cast  by Securityholders  voting
        together as a single class, in person or by proxy, at the Meeting; and

     -  a  majority of  all the votes  cast by Minority  Shareholders voting, in
        person or by proxy, at the Meeting.

     See "The Arrangement -- Securityholder Approvals" in this Circular.

EFFECTS OF THE ARRANGEMENT

     Under the Arrangement, on the Effective Date:

     -  Shareholders will receive one  New Hemosol Share and  one Labco Class  A
        Share  for each  Hemosol Share that  they held immediately  prior to the
        Effective Time, and the Hemosol Shares will cease to exist;

     -  each Hemosol Convertible Security will become a New Hemosol  Convertible
        Security with terms identical to the Hemosol Convertible Security, other
        than a reduction of the exercise price by $0.04; and

     -  each  Hemosol Option will  be cancelled and replaced  with a New Hemosol
        Option having  vesting and  exercise  terms identical  to those  of  the
        cancelled  Hemosol Option  and an exercise  price equal  to the exercise
        price of such cancelled Hemosol  Option less $0.04, except that  holders
        of Hemosol Options that so consent will only receive New Hemosol Options
        in  respect  of cancelled  Hemosol  Options that  are  Specified Hemosol
        Options and  will not  receive any  New Hemosol  Options in  respect  of
        cancelled Hemosol Options that are not Specified Hemosol Options.
                                        5


THE ARRANGEMENT

     The  purpose of the Arrangement  is to provide a  $16 million cash infusion
into the Blood Products Business  through the utilization of Hemosol's  existing
and  unutilized Tax  Losses. The  Arrangement involves  a reorganization  of the
Blood Products  Business of  Hemosol and  the Labs  Business of  MDS. Under  the
Arrangement:

     -  Hemosol  will transfer the Blood Products Business to the Blood Products
        Partnership and the  Blood Products  Partnership will  assume the  Blood
        Products  Liabilities. Following  the transfer  by Hemosol  of the Blood
        Products Business to the Blood Products Partnership, Hemosol is referred
        to as "Labco". On completion of the Arrangement:

          - approximately 93% of the Blood Products Partnership will be owned by
            New Hemosol, which  will control the  Blood Products Partnership  as
            its general partner; and

          - approximately  7% of the Blood Products Partnership will be owned by
            Labco as a limited partner.

     -  MDS will  transfer  the  Labs  Business  to  the  Labs  Partnership.  On
        completion of the Arrangement:

          - 99.99%  of the Labs Partnership will be  owned by Labco as a limited
            partner; and

          - 0.01% of the Labs Partnership will be owned by MDS Subco, which will
            control the Labs Partnership as its general partner.

     -  New Hemosol will receive cash redemption proceeds of $16 million on  the
        Effective  Date from Labco (which will be funded by a loan from the Labs
        Partnership). $1 million  of such  proceeds will  be held  in escrow  to
        satisfy  liabilities relating  to the Blood  Products Business remaining
        with Labco,  if any,  of which  Labco becomes  aware within  a  one-year
        period following the Effective Date.

     -  MDS will surrender the Surrendered Warrants through the following steps:

          - the  Tranche A Warrants  to purchase up  to 6,000,000 Hemosol Shares
            will be replaced  with warrants  of New  Hemosol to  purchase up  to
            5,500,000  New  Hemosol  Shares  on identical  terms  (subject  to a
            reduction of the exercise price by $0.04 per Tranche A Warrant); and

          - MDS's existing right to receive Tranche B Warrants to purchase up to
            4,000,000 Hemosol Shares in  certain circumstances will be  replaced
            with  the right to receive warrants of New Hemosol to purchase up to
            2,000,000 New  Hemosol  Shares, on  identical  terms (subject  to  a
            reduction of the exercise price by $0.04 per Tranche B Warrant).

     -  The  share  ownership  of  New  Hemosol, which  will  be  in  effect the
        successor to the  Blood Products Business,  will mirror Hemosol's  share
        ownership  immediately prior to the Effective Date. It is a condition of
        closing that the New Hemosol Shares be  listed on the TSX and quoted  on
        NASDAQ.  The  Labco Class  A Shares  will  not be  listed or  posted for
        trading on the TSX or any other stock exchange or market and will not be
        quoted on NASDAQ. Following completion  of the Arrangement, New  Hemosol
        and  Labco will each be a reporting issuer in Canada and a registrant in
        the United States.

     -  The share ownership of Labco, which  will be in effect the successor  to
        the Labs Business, will be such that Public Shareholders will hold 0.44%
        of  Labco's equity securities (through their  ownership of not less than
        52.5% of the  voting shares of  Labco) and MDS  will hold the  remaining
        99.56%  of Labco's equity securities (through  its ownership of not more
        than 47.5% of  the voting shares  and 100% of  the non-voting shares  of
        Labco).

     -  Labco  will utilize the Tax Losses  against income that it receives from
        the Partnerships.

     See "The Arrangement -- Transaction Steps Outside the Plan of  Arrangement"
and "-- Transaction Steps Under the Plan of Arrangement" in this Circular.
                                        6


PRE- AND POST-ARRANGEMENT ORGANIZATIONAL STRUCTURE

     The   following  diagram  sets  out  the  corporate  structure  of  Hemosol
immediately prior to the  Effective Time (assuming  that MDS's shareholdings  of
Hemosol  immediately prior  to the  Effective Time are  the same  as its current
shareholdings).

               (PRE-ARRANGEMENT ORGANIZATIONAL STRUCTURE DIAGRAM)

     The following diagram  sets out the  corporate structure of  Labco and  New
Hemosol   immediately  following   the  Effective  Time   (assuming  that  MDS's
shareholdings of Hemosol immediately prior to the Effective Time are the same as
its current shareholdings).

              (POST-ARRANGEMENT ORGANIZATIONAL STRUCTURE DIAGRAM)
- ---------------

Notes:

(1) While Public  Shareholders  will hold  0.44%  of Labco's  equity  securities
    through  their  holdings of  Labco  Class A  Shares,  such shares  will have
    attached thereto not less  than 52.5% of the  votes attaching to all  voting
    shares of Labco.

(2) While MDS will hold 99.56% of Labco's equity securities through its holdings
    of  Labco Class A  Shares and Labco  Class B Non-Voting  Shares, such shares
    will have attached thereto not more than 47.5% of the votes attaching to all
    voting shares of Labco.
                                        7


BACKGROUND AND REASONS FOR THE ARRANGEMENT

     Hemosol  is  a   biopharmaceutical  company  focused   on  the   discovery,
development  and manufacture of products based  on human blood proteins. Hemosol
has  a  range  of  products  in  development,  including  its  principal  oxygen
therapeutic   product,   HEMOLINK.   Hemosol  is   also   developing  additional
therapeutics and a hemoglobin-based delivery platform to treat diseases such  as
hepatitis  C  and cancers  of the  liver, as  well as  a cell  therapy initially
directed to the  treatment of cancer  through its cell  expansion and stem  cell
research  activities. In addition  to the products  currently under development,
Hemosol intends  to  use  its  state-of-the-art  Hemolink  Building  to  produce
valuable  therapeutic plasma-based  proteins pursuant to  the recently announced
strategic alliance with ProMetic.

     Hemosol's ability  to continue  as  a going  concern  is dependent  on  its
ability  to secure  financing or  to generate  revenues in  order to  be able to
continue its  development  activities and  successfully  bring its  products  to
market.  On January 31, 2004, Hemosol had approximately $7.1 million in cash and
cash equivalents. Hemosol has fully drawn  down all amounts available under  the
Bank  Loan. As a result of cost savings plans implemented in June 2002 and April
2003, Hemosol's average monthly cash burn-rate has been reduced to approximately
$1.2 million. Hemosol estimates  that existing financial  resources will not  be
sufficient  to allow it  to continue its development  activities after June 2004
unless additional financing is obtained.

     The purpose of the  Arrangement is to provide  a $16 million cash  infusion
into  the Blood Products Business through  the utilization of Hemosol's existing
and unutilized Tax Losses. As Hemosol's operations to date have been focused  on
research  and development activities, Hemosol has had losses from operations for
each fiscal year since its inception in 1985 and has, as a result, accumulated a
significant amount of Tax Losses which it is currently unable to utilize.

     MDS  approached  Hemosol  in  September  2003  with  a  proposal  for   the
Arrangement.  CCRA issued the Tax Ruling  on September 23, 2003, as supplemented
on February 5, 2004, which sets out  the steps for the restructuring of  Hemosol
and  the Labs Business  that would allow  the Tax Losses  to be utilized against
income from  the  Labs  Business.  On September  17,  2003,  the  Hemosol  Board
established  the Independent Committee to  evaluate the Arrangement, oversee the
negotiation of its terms and  make a recommendation to  the Hemosol Board as  to
whether  it is fair, from a financial point of view, to Non-MDS Securityholders.
On  October  31,  2003,  Hemosol  and  MDS  executed  a  non-binding  Letter  of
Understanding  setting out the  understanding between Hemosol  and MDS regarding
the Arrangement  and  referring to  a  cash  infusion into  the  Blood  Products
Business within a range of $10 to $15 million, subject to negotiation.

     During  the  period between  August and  October  2003, Hemosol  received a
number of  expressions  of interest  involving  the Tax  Losses,  including  the
expression  of  interest of  MDS referred  to above.  Hemosol received  two non-
binding written proposals for transactions involving the Tax Losses from parties
other than MDS.  Hemosol did not  pursue such proposals,  as they involved  cash
infusions  that were significantly below the range  referred to in the Letter of
Understanding and in Hemosol's view, the likelihood of successful completion  of
such proposals was below that of the proposal from MDS, particularly in light of
MDS having obtained the Tax Ruling.

     Hemosol's  management, with the  active involvement and  supervision by the
Independent Committee, negotiated  the terms of  the Arrangement and  determined
the  aggregate consideration for the Arrangement, including the cash infusion of
$16 million into the Blood Products  Business, the surrender of the  Surrendered
Warrants,  the indirect transfer  of approximately 7% of  the equity interest in
the Blood Products Business to Labco and the indirect transfer of  approximately
0.44%  of the equity interest of the  Labs Business to Public Shareholders. As a
result of these negotiations, on February 11, 2004, Hemosol and MDS entered into
the Arrangement Agreement and a press release was issued by each of Hemosol  and
MDS on the morning of February 12, 2004.

     The Arrangement provides Hemosol with the opportunity to raise cash for the
Blood Products Business in a manner that is considerably less dilutive than, and
does  not have the other  limitations of, raising equity  capital and will allow
New Hemosol  to continue  the  development of  HEMOLINK  and the  other  product
candidates  of  Hemosol  and  to  advance  the  implementation  of  the recently
announced alliance with ProMetic.

     Although New Hemosol will not have  the future benefit of applying the  Tax
Losses  against income, it is expected  that the Blood Products Partnership will
not be able to generate sufficient revenues from the Blood Products Business  in
the  near term to utilize such Tax Losses  and that it will continue to generate
additional tax losses until it is  able to commercialize HEMOLINK and/or one  or
more of its other product candidates or generate
                                        8


revenues  from the utilization of the  Hemolink Building. In addition, the Blood
Products Partnership will have the ability to utilize the undepreciated  capital
cost of the Blood Products Assets against future income.

     See "Special Factors" in this Circular.

FAIRNESS OPINION

     KPMG  was engaged by the Independent  Committee to act as financial advisor
to the Independent  Committee in respect  of the Arrangement.  KPMG provided  an
opinion  to the Hemosol Board and the Independent Committee that, subject to the
assumptions and  qualifications  set  out  in the  KPMG  Fairness  Opinion,  the
Arrangement is fair, from a financial point of view, to Non-MDS Securityholders.
The  full text  of the KPMG  Fairness Opinion is  reproduced in Annex  E of this
Circular. Also see "Special Factors -- KPMG Fairness Opinion".

DELIBERATIONS AND RECOMMENDATIONS OF THE INDEPENDENT COMMITTEE

     After detailed  consideration  of  the matter,  the  Independent  Committee
concluded  that the Arrangement is in Hemosol's best interests and is fair, from
a  financial  point  of  view,  to  Non-MDS  Securityholders.  Accordingly,  the
Independent  Committee unanimously recommended that  the Hemosol Board recommend
to the Securityholders that they vote  in favour of the Arrangement  Resolution.
In  reaching such conclusions, the Independent  Committee obtained the advice of
its professional  advisors,  completed a  detailed  examination of  the  process
leading  to the execution  of the Arrangement Agreement,  examined the terms and
conditions of the Arrangement, the  Arrangement Agreement and the KPMG  Fairness
Opinion, had discussions with Hemosol's senior management with respect to, among
other  things,  the  business,  assets,  financial  condition  and  prospects of
Hemosol, reviewed the information provided  in connection with the  Arrangement,
had discussions with the professional advisors to Hemosol and examined all other
relevant  documents and information.  See "Special Factors  -- Recommendation of
the Independent Committee" in this Circular.

RECOMMENDATION OF THE HEMOSOL BOARD

     THE HEMOSOL BOARD, HAVING CONSIDERED,  AMONG OTHER THINGS, THE REASONS  FOR
THE  ARRANGEMENT, THE RECOMMENDATIONS OF THE  INDEPENDENT COMMITTEE AND THE KPMG
FAIRNESS OPINION, UNANIMOUSLY (EXCLUDING FOUR DIRECTORS WHO ARE RELATED TO  MDS,
EACH  OF WHOM ABSTAINED  FROM VOTING IN  ACCORDANCE WITH THE  OBCA) APPROVED THE
ARRANGEMENT, THE  TERMS  OF  THE  ARRANGEMENT  AGREEMENT  AND  THE  TRANSACTIONS
CONTEMPLATED  THEREBY AND RECOMMENDS THAT THE  SECURITYHOLDERS VOTE IN FAVOUR OF
THE ARRANGEMENT RESOLUTION.

     See "Special  Factors  -- Recommendation  of  the Hemosol  Board"  in  this
Circular.

NON-SOLICITATION

     In  the  Arrangement Agreement,  Hemosol has  agreed that  it will  not (i)
solicit, initiate or encourage any inquiries or proposals regarding any  merger,
amalgamation,  arrangement, restructuring,  take-over bid,  sale or  purchase of
substantial assets (including, without  limitation, tax carryforward  balances),
sale  or  purchase  of  securities  (other  than  certain  exceptions), business
combinations, reorganizations or  recapitalizations (an "Acquisition  Proposal")
or  (ii) participate in any discussions or negotiations regarding, or furnish to
any person any information with respect to any of the foregoing.

     Hemosol may  respond  to  an  unsolicited  bona  fide  written  Acquisition
Proposal  which the  Hemosol Board  determines in good  faith and  in the proper
discharge of its fiduciary duties would,  if consummated in accordance with  its
terms,  result  in a  transaction that  is more  favourable to  the Shareholders
generally (without taking into account any benefits that MDS and its  affiliates
and  associates  may  receive under  the  Arrangement) than  the  Arrangement (a
"Superior  Proposal").  See  "The  Arrangement  --  Non-Solicitation"  in   this
Circular.

CONDITIONS TO CLOSING

     The  closing  of  the  Arrangement  is  subject  to  customary  conditions,
including the receipt of all necessary regulatory approvals (including  approval
from the TSX, NASDAQ, the Department of National Defence and the MOH).
                                        9


     The  closing of  the Arrangement is  also subject to  certain conditions in
favour of MDS, including the following:

     -  there has been  no change or  development in respect  of Hemosol or  the
        Blood  Products Business that would result in any material impairment in
        or materially adversely affect the ability  of Labco to utilize the  Tax
        Losses after the Effective Date as contemplated in the Tax Ruling;

     -  MDS  has obtained any amendments or supplements to the Tax Ruling deemed
        necessary by its counsel or financial advisors in order to implement the
        Arrangement and  to allow  Labco to  utilize the  Tax Losses  after  the
        Effective Date as contemplated in the Tax Ruling; and

     -  there  is  no  change in  tax  law  that could  result  in  any material
        impairment in  or materially  adversely  affect the  Tax Ruling  or  the
        ability  of Labco to utilize the Tax  Losses after the Effective Date as
        contemplated in the Tax Ruling.

     See "The Arrangement  -- Mutual  Conditions", "-- Conditions  in Favour  of
Hemosol" and "-- Conditions in Favour of MDS" in this Circular.

EXPENSE REIMBURSEMENT

     Under  the terms of the Arrangement  Agreement, Hemosol must pay $1 million
to MDS in respect of expenses incurred by MDS in connection with the Arrangement
if the Arrangement Agreement is terminated by:

     -  MDS as a result of a breach by Hemosol of any of its representations  or
        warranties or covenants in the Arrangement Agreement;

     -  MDS  if the Hemosol Board  has modified, in a  manner adverse to MDS, or
        withdrawn  its  recommendation  that  the  Securityholders  approve  the
        Arrangement,  the Hemosol Board has approved or recommended any Superior
        Proposal, or Hemosol has entered  into a binding agreement with  respect
        to a Superior Proposal;

     -  Hemosol  upon its determination that an Acquisition Proposal constitutes
        a Superior Proposal; or

     -  MDS or Hemosol if the Effective Date  does not occur on or prior to  the
        Outside  Date (provided that a condition  to closing relating to actions
        to be taken by Hemosol has not been fulfilled).

     Similarly, MDS must pay $500,000 to Hemosol in respect of expenses incurred
by Hemosol in connection  with the Arrangement if  the Arrangement Agreement  is
terminated by:

     -  Hemosol  as a result of a breach by MDS of any of its representations or
        warranties or covenants in the Arrangement Agreement;

     -  MDS or Hemosol if the Effective Date  does not occur on or prior to  the
        Outside  Date (provided that a condition  to closing relating to actions
        to be taken by MDS has not been fulfilled); or

     -  MDS if CCRA has refused to issue  an amendment or supplement to the  Tax
        Ruling  deemed necessary by MDS's counsel or financial advisors in order
        to implement  the Arrangement  and to  allow Labco  to utilize  the  Tax
        Losses  after the Effective  Date as contemplated in  the Tax Ruling, or
        there is  a  change  in  tax  law that  could  result  in  any  material
        impairment  in  or materially  adversely affect  the  Tax Ruling  or the
        ability of Labco to utilize the  Tax Losses after the Effective Date  as
        contemplated in the Tax Ruling.

     See  "The  Arrangement --  Termination and  Expense Reimbursement"  in this
Circular.

NEW HEMOSOL AFTER THE ARRANGEMENT

     New Hemosol was incorporated  on February 24, 2004  and has not carried  on
any active business since its incorporation.

     On  the Effective Date, the  New Hemosol Shares will  be held by the Public
Shareholders and MDS (directly or indirectly) on the same pro rata basis as  the
Hemosol Shares are held by such persons immediately prior to the Effective Time.

     Following  the completion of the Arrangement,  New Hemosol will, in effect,
be the  successor  to Hemosol's  Blood  Products Business  as  it will  hold  an
approximate  93% interest  in, and  will be  the general  partner of,  the Blood
Products Partnership, which  will own  and operate the  Blood Products  Business
after  the Effective  Time. The remaining  approximate 7% interest  in the Blood
Products Partnership will be held by Labco as limited partner.
                                        10


     See "New Hemosol After the Arrangement" and "The Blood Products Partnership
After the Arrangement" in this Circular.

LABCO AFTER THE ARRANGEMENT

     On the Effective Date, Public Shareholders will hold not less than 52.5% of
the Labco Class A Shares, representing 0.44% of the equity securities of  Labco,
and  MDS will  hold, directly or  indirectly, not  more than 47.5%  of the Labco
Class A Shares  and 100% of  the Labco Class  B Non-Voting Shares,  collectively
representing  99.56% of  the equity  securities and not  more than  47.5% of the
voting securities of Labco.  New Hemosol will acquire  all Labco Class C  Shares
under the Plan of Arrangement, which Labco will redeem on the Effective Date for
aggregate  redemption proceeds  of $16  million in  cash and  certain additional
consideration.

     Following the Arrangement, Labco will retain the Tax Losses and will hold:

     -  a 99.99% limited  partnership interest  in the  Labs Partnership,  which
        will own and operate the Labs Business; and

     -  an  approximate 7%  limited partnership  interest in  the Blood Products
        Partnership, which will own and operate the Blood Products Business.

     Following the completion of the Arrangement, the Labs Partnership will be a
limited partnership, of which 99.99% of  the partnership interests will be  held
by  Labco as limited partner and 0.01% of the partnership interests will be held
by MDS Subco as general partner. The  Labs Partnership will own and operate  the
Labs  Business  (excluding  the  employees and  medical  directors  of  the Labs
Business who have either been transferred by MDS to MDS Subco or remain with MDS
as part of its national clinical laboratory services business). MDS will  retain
operational  control  over the  Labs  Business by  virtue  of the  0.01% general
partnership interest  in  the  Labs Partnership  to  be  held by  MDS  Subco,  a
wholly-owned subsidiary of MDS.

     See  "Labco After the  Arrangement", "The Blood  Products Partnership After
the Arrangement"  and  "The Labs  Partnership  After the  Arrangement"  in  this
Circular.

NO DISSENT RIGHTS

     The  Interim Order  does not grant  dissent rights  to the Securityholders.
Accordingly, the Securityholders will not have any right to dissent and be  paid
the  fair value of their Hemosol  Securities in connection with the Arrangement.
See "The Arrangement -- Court Approval" in this Circular.

RISK FACTORS

     In deciding whether to approve the Arrangement, the Securityholders  should
consider the risk factors related to the businesses of New Hemosol and Labco and
the  holding  of Labco  Shares.  These risk  factors  are described  under "Risk
Factors" in  this  Circular.  See  also  "Income  Tax  Considerations"  in  this
Circular.

CERTAIN CANADIAN FEDERAL INCOME TAX CONSIDERATIONS

     Canadian  holders  will  generally realize  neither  a capital  gain  nor a
capital loss on  the exchange of  Hemosol Shares  for Labco Class  A Shares  and
Labco  Class C Shares or on the exchange of Labco Class C Shares for New Hemosol
Shares. See "Income Tax  Considerations -- Certain  Canadian Federal Income  Tax
Considerations".

CERTAIN UNITED STATES FEDERAL INCOME TAX CONSIDERATIONS

     US  Holders will likely  be treated as receiving  a taxable distribution of
New Hemosol Shares from Labco for U.S. federal income tax purposes. If Labco  is
treated  as having earnings and profits for  the taxable year ending October 31,
2004, then the fair  market value of the  deemed distribution will generally  be
taxed  as ordinary income  to the extent  of such earnings  and profits. Hemosol
believes that Labco should  not have earnings and  profits for the taxable  year
ending  October 31, 2004. However, US Holders  should consider the risk that for
the taxable  year  ending October  31,  2004, Labco  may  be treated  as  having
earnings  and profits. See  "Income Tax Considerations  -- Certain United States
Federal Income Tax Considerations" and "Risk Factors -- Risks Relating to  Labco
- --  US  Holders  of  Hemosol  Shares  may  be  treated  as  receiving  a taxable
distribution from Labco for U.S. federal income tax purposes".
                                        11


SPECIAL FACTORS

     For a  more  detailed  description  of the  matters  relating  to  the  (i)
purposes, alternatives, reasons and effects of the Arrangement, (ii) fairness of
the  Arrangement  and  (iii)  reports,  opinions,  appraisals  and  negotiations
relating to  the Arrangement,  please see  "Special Factors  -- Purpose  of  the
Arrangement",  "-- Background to the Arrangement", "-- Alternatives Considered",
"--  Reasons   for  the   Arrangement",  "--   Effects  of   the   Arrangement",
"--  Recommendation  of the  Independent Committee",  "-- Recommendation  of the
Hemosol Board", "-- KPMG  Fairness Opinion", "-- Reasons  Why MDS and MDS  Subco
Consider  the  Arrangement to  be Fair  to  Non-MDS Securityholders"  and "Draft
Report of PricewaterhouseCoopers LLP".

DISTRIBUTION OF SHARE CERTIFICATES

     From the Effective Time to the close  of business on the fifth trading  day
following  the Effective Date, certificates formerly representing Hemosol Shares
will represent only the right  to receive New Hemosol  Shares and Labco Class  A
Shares  in accordance with  the Arrangement. Following the  close of business on
the fifth trading day following the Effective Date, such certificates will cease
to represent any  claim or interest,  including a claim  for dividends or  other
distributions against Labco or New Hemosol.

     As  soon as practicable,  certificates representing New  Hemosol Shares and
Labco Class A Shares will be mailed to those Shareholders whose names appear  on
the  register of shareholders at the close  of business on the fifth trading day
following the Effective Date.
                                        12


                           FORWARD-LOOKING STATEMENTS

     This Circular contains forward-looking statements relating to the  business
and  financial  outlook  of  Hemosol/ Labco,  New  Hemosol,  the  Blood Products
Partnership  and  the  Labs   Partnership  which  are   based  on  the   current
expectations,  estimates, forecasts and projections  of Hemosol, New Hemosol and
MDS. In some cases, forward-looking statements can be identified by  terminology
such  as "may", "will", "should", "expects", "plans", "anticipates", "believes",
"estimates", "predicts",  "potential" or  "continue" or  the negative  of  these
terms  or other comparable terminology. These forward-looking statements are not
guarantees of future performance and involve risks, uncertainties, estimates and
assumptions that  are  difficult  to predict.  Therefore,  actual  outcomes  and
results  may  differ materially  from those  expressed in  these forward-looking
statements. The Securityholders should not place undue reliance on any of  these
forward-looking  statements. Further, any  forward-looking statement speaks only
as of the date on  which it is made, and  Hemosol/Labco, New Hemosol, the  Blood
Products  Partnership and the Labs Partnership undertake no obligation to update
any such statement to reflect new  information, the occurrence of future  events
or circumstances or otherwise.

     A  number  of  important  factors  could  cause  actual  results  to differ
materially from those  indicated by the  forward-looking statements,  including,
but not limited to, the risks described under "Risk Factors" in this Circular.

                     PRESENTATION OF FINANCIAL INFORMATION

     The  Audited Financial Statements  of Hemosol incorporated  by reference in
this Circular and the summary historical financial information for Hemosol based
thereon set out in  Annex G of  this Circular have  been prepared in  accordance
with  Canadian GAAP, and  thus are not  comparable in all  respects to financial
statements prepared in accordance with United  States GAAP. For a discussion  of
the principal differences between Canadian GAAP and United States GAAP, see Note
19  to Hemosol's  audited consolidated financial  statements for  the year ended
December 31, 2003, which are incorporated by reference in this Circular.

     The summary financial information concerning the Labs Business included  in
this  Circular under  "The Labs Partnership  After the  Arrangement -- Unaudited
Summary Financial Information Concerning the Labs Business" is unaudited and  is
derived  from the financial records of MDS that were used to prepare the audited
consolidated statements of financial position of MDS as at October 31, 2003  and
the  audited consolidated statements of income of MDS for the fiscal years ended
October 31, 2003, 2002 and 2001.

                            CURRENCY EXCHANGE RATES

     Except where  otherwise indicated,  all dollar  amounts set  forth in  this
Circular  are expressed in Canadian dollars and "$" shall mean Canadian dollars.
The following table sets  forth, for the periods  indicated, the average,  high,
low  and end of  period closing buying rates  in the City of  New York for cable
transfers as certified for customs purposes  by the Federal Reserve Bank of  New
York.  Such rates are set forth as U.S. dollars per $1.00 and are the inverse of
rates quoted by the Federal  Reserve Bank of New  York for Canadian dollars  per
US$1.00. On March 10, 2004, the inverse of the closing buying rate was $1.00 per
US$0.7533.

<Table>
<Caption>
YEAR ENDED                                                   AVERAGE(1)    HIGH     LOW     PERIOD END
- ----------                                                   ----------   ------   ------   ----------
                                                                                
December 31, 2003..........................................    0.7205     0.7738   0.6542     0.7738
December 31, 2002..........................................    0.6370     0.6583   0.6231     0.6329
December 31, 2001..........................................    0.6446     0.6669   0.6279     0.6279
</Table>

<Table>
<Caption>
MONTH ENDED                                                  AVERAGE(2)    HIGH     LOW     PERIOD END
- -----------                                                  ----------   ------   ------   ----------
                                                                                
February 29, 2004..........................................    0.7524     0.7629   0.7439     0.7460
January 31, 2004...........................................    0.7719     0.7880   0.7496     0.7539
</Table>

- ---------------

Notes:

(1)  The  average of the exchange rates on the last day of each month during the
     applicable year.

(2)  The average of the exchange rates for all days during the applicable month.

                                        13


                          NOTICE REGARDING INFORMATION

     The information contained  or incorporated  by reference  in this  Circular
(including the information under the heading "Special Factors -- Reasons Why MDS
and  MDS Subco Consider the Arrangement  to be Fair to Non-MDS Securityholders")
concerning  MDS  and  MDS  Subco,  their  respective  directors,  officers   and
affiliates  or the  Labs Business is  based solely upon  information provided to
Hemosol by MDS  or upon  publicly available  information. With  respect to  this
information,  the  Hemosol  Board  has  relied  exclusively  upon  MDS,  without
independent verification by Hemosol.

     Information in this Circular is given as at March 10, 2004 unless otherwise
indicated.

     No person is authorized to give any information or make any  representation
not  contained or incorporated  by reference in  this Circular and,  if given or
made, such information  or representation should  not be relied  upon as  having
been  authorized.  This Circular  does not  constitute  an offer  to sell,  or a
solicitation of an offer to purchase,  any securities, or the solicitation of  a
proxy,  by any person in any jurisdiction in which such an offer or solicitation
is not authorized or in  which the person making  such offer or solicitation  is
not  qualified to do so or to any person  to whom it is unlawful to make such an
offer or solicitation  of an offer  or proxy solicitation.  Neither delivery  of
this  Circular  nor  any distribution  of  the  securities referred  to  in this
Circular will, under  any circumstances,  create an implication  that there  has
been  no  change in  the information  set forth  herein since  the date  of this
Circular.

                                        14


                                SPECIAL FACTORS

PURPOSE OF THE ARRANGEMENT

     Hemosol's ability  to continue  as  a going  concern  is dependent  on  its
ability  to secure  financing or  to generate  revenues in  order to  be able to
continue its  development  activities and  successfully  bring its  products  to
market.  On January 31, 2004, Hemosol had approximately $7.1 million in cash and
cash equivalents. Hemosol has fully drawn  down all amounts available under  the
Bank  Loan. As a result of cost savings plans implemented in June 2002 and April
2003, Hemosol's average monthly cash burn-rate has been reduced to approximately
$1.2 million. Hemosol estimates  that existing financial  resources will not  be
sufficient  to allow it  to continue its development  activities after June 2004
unless additional financing is obtained.

     The purpose of the  Arrangement is to provide  a $16 million cash  infusion
into  the Blood Products Business through  the utilization of Hemosol's existing
and unutilized Tax Losses. Hemosol has  accumulated a significant amount of  Tax
Losses  from its research and development activities to date and does not expect
to be able to generate sufficient  revenues from the Blood Products Business  in
the near term to utilize such losses.

BACKGROUND TO THE ARRANGEMENT

     Hemosol   is  a   biopharmaceutical  company  focused   on  the  discovery,
development and manufacture of products  based on human blood proteins.  Hemosol
has  a  range  of  products  in  development,  including  its  principal  oxygen
therapeutic  product,   HEMOLINK.   Hemosol  is   also   developing   additional
therapeutics  and a hemoglobin-based delivery platform to treat diseases such as
hepatitis C  and cancers  of the  liver, as  well as  a cell  therapy  initially
directed  to the treatment  of cancer through  its cell expansion  and stem cell
research activities. In  addition to the  products currently under  development,
Hemosol  intends  to  use  its  state-of-the-art  Hemolink  Building  to produce
valuable therapeutic plasma-based  proteins pursuant to  the recently  announced
strategic alliance with ProMetic.

     As  Hemosol's  operations  to  date  have  been  focused  on  research  and
development activities, Hemosol has had  losses from operations for each  fiscal
year  since  its inception  in  1985. As  a  result, Hemosol  has  accumulated a
significant amount of Tax Losses which it is currently unable to utilize.

     MDS is  the  largest  health  and life  sciences  company  in  Canada  with
consolidated  revenues  for  the fiscal  year  ended  October 31,  2003  of $1.8
billion. MDS,  through its  operating divisions,  is involved  in a  variety  of
businesses  related  to  the  health  and  life  sciences  industry,  including:
laboratory testing, imaging agents  for nuclear medicine testing,  sterilization
systems  for medical and consumer products,  research services for discovery and
development of drugs, analytical instruments to assist in the development of new
drugs,  medical/surgical   supplies   and  proteomics-enabled   drug   discovery
technology.  As MDS  and its  affiliates (as  such term  is defined  in the U.S.
Exchange Act) own approximately 11.7% of the outstanding Hemosol Shares and four
members of the current Hemosol Board are directors, officers or employees of MDS
or affiliates thereof, MDS  is a related  party of Hemosol  for the purposes  of
Rule  61-501 and Policy Q-27 and may be deemed to be an affiliate of Hemosol for
the purposes of  Rule 13e-3 under  the U.S.  Exchange Act. In  addition, as  MDS
Subco  and Hemosol may each  be controlled (as such term  is defined in the U.S.
Exchange Act) by MDS, MDS  Subco may be deemed an  affiliate of Hemosol for  the
purposes of Rule 13e-3 under the U.S. Exchange Act.

     In  September  2003,  MDS  approached  Hemosol  with  a  proposal  for  the
Arrangement. CCRA issued the Tax Ruling  on September 23, 2003, as  supplemented
on  February 5, 2004, which sets out  the steps for the restructuring of Hemosol
and the Labs Business  that would allow  the Tax Losses  to be utilized  against
income  from the  Labs Business.  The steps of  the reorganization  of the Blood
Products Business  and the  Labs  Business as  set out  in  the Tax  Ruling  are
reflected in the transactions contemplated under the Arrangement.

     On  September 17, 2003, the Hemosol  Board formed the Independent Committee
for the purpose of  evaluating the Arrangement,  overseeing the negotiations  of
the terms of the Arrangement and making a recommendation to the Hemosol Board as
to whether the Arrangement is in the best interests of Hemosol and whether it is
fair,   from  a  financial  point  of  view,  to  Non-MDS  Securityholders.  The
Independent Committee is comprised of three directors who are not related to MDS
or its  affiliates and  who are  not employees  of Hemosol,  namely Mitchell  J.
Kostuch, George W. Masters and Edward E. McCormack.

     On September 25, 2003, the Independent Committee met with E&Y, auditors and
tax  advisors  to Hemosol,  to discuss  the  structure of  the Arrangement  on a
preliminary basis. E&Y are also the auditors and tax advisors of MDS.
                                        15


     On October 31, 2003, Hemosol and  MDS executed the Letter of  Understanding
setting  out the understanding between Hemosol and MDS regarding the Arrangement
and referring to a cash infusion into the Blood Products Business within a range
of $10 to $15 million, subject  to negotiation. The Letter of Understanding  was
non-binding  except for certain  provisions relating to  confidentiality and the
agreement of  Hemosol to  negotiate exclusively  with MDS  with respect  to  any
transaction involving the Tax Losses for a specified period of time.

     During  November 2003,  MDS conducted due  diligence in respect  of the Tax
Losses and the Blood  Products Business and Hemosol  conducted due diligence  in
respect  of the Labs Business. On November 24, 2003, KPMG was engaged to provide
financial advisory services to the  Independent Committee, including an  opinion
as  to  the fairness  of the  Arrangement, from  a financial  point of  view, to
Non-MDS Securityholders.

     On December 2, 2003, the Independent Committee held a conference call  with
KPMG  and E&Y, with DWPV, Hemosol's  legal advisors, and with representatives of
Hemosol's management (none of  whom is related  to MDS or  its affiliates or  is
otherwise  a director, officer or employee of MDS). DWPV provided an overview of
the duties and obligations of the  Independent Committee and KPMG confirmed  the
terms of its engagement.

     On December 9, 2003, the Independent Committee met with DWPV, KPMG, E&Y and
representatives  of  Hemosol's  management. KPMG  and  management  presented the
detailed structure  of the  Arrangement and  an  analysis of  the value  of  the
consideration  to be exchanged under the  Arrangement and management provided an
update as to preliminary value  discussions with MDS. The Independent  Committee
and  management discussed negotiation  strategy and process  and the Independent
Committee provided guidance to  management as to  such matters. The  Independent
Committee  and management also discussed alternative ways to raise financing for
Hemosol. The Independent Committee then held  a meeting in camera with DWPV  and
KPMG  at which KPMG  discussed with the  Independent Committee the  issues to be
considered in the  negotiation of the  various value transfers  involved in  the
Arrangement.

     On  December  19, 2003,  management of  Hemosol provided  an update  to the
Independent Committee as to the status of the continuing negotiations with  MDS.
Management  introduced the concept of the Surrendered Warrants pursuant to which
MDS would surrender a certain number of its Tranche A Warrants and its right  to
receive a certain number of its Tranche B Warrants as an alternative way for MDS
to  contribute consideration  to the  proposed transaction.  Management and KPMG
presented to the Independent  Committee a methodology  to value the  Surrendered
Warrants.  Following a detailed  discussion and consultation  with KPMG and E&Y,
the  Independent  Committee  provided  management  with  a  range  of  financial
parameters within which management was authorized to carry out the negotiations.

     On  February 11,  2004, the Independent  Committee met with  DWPV, KPMG and
management  of  Hemosol.  Representatives  of  Hemosol's  management  and   DWPV
presented  the  terms of  the  Arrangement. Following  such  presentations, KPMG
discussed in detail with the Independent Committee each element of its  analysis
in  reaching the  conclusions in the  KPMG Fairness Opinion.  KPMG delivered its
opinion that, as of February 11, 2004, the Arrangement is fair, from a financial
point of  view,  to Non-MDS  Securityholders  (see "--  KPMG  Fairness  Opinion"
below).  After consideration of the advice  from KPMG, the Independent Committee
unanimously determined that the Arrangement  is in Hemosol's best interests  and
is  fair,  from  a financial  point  of  view, to  Non-MDS  Securityholders. The
Independent Committee unanimously approved its  report to the Hemosol Board  and
resolved  to recommend  the approval  of the  Arrangement to  the Hemosol Board.
Later on February 11, 2004, the  Hemosol Board met to consider the  Arrangement.
After  careful consideration of the report  of the Independent Committee and the
Independent Committee's conclusions,  the KPMG  Fairness Opinion  and the  other
factors  considered and  relied upon by  the Independent  Committee, the Hemosol
Board determined that the Arrangement is in the best interests of Hemosol and is
fair,  from  a  financial  point  of  view,  to  Non-MDS  Securityholders,   and
unanimously  (excluding  four directors  who are  related to  MDS, each  of whom
abstained from voting in accordance with the OBCA) approved the Arrangement. See
"-- Recommendation of the Independent  Committee" and "-- Recommendation of  the
Hemosol Board" below.

     On  February  11,  2004,  Hemosol  and  MDS  entered  into  the Arrangement
Agreement and a  press release  was issued  by each of  Hemosol and  MDS on  the
morning of February 12, 2004.

     All  of the terms of the Arrangement, including the aggregate consideration
therefor, such consideration consisting of the cash infusion of $16 million into
the Blood  Products Business,  the surrender  of the  Surrendered Warrants,  the
indirect  transfer  of approximately  7%  of the  equity  interest in  the Blood
Products Business to Labco

                                        16


and the indirect transfer of approximately  0.44% of the equity interest of  the
Labs  Business  to  Public  Shareholders,  were  determined  and  negotiated  by
Hemosol's management under the supervision of the Independent Committee.

ALTERNATIVES CONSIDERED

     During the  period between  August  and October  2003, Hemosol  received  a
number  of  expressions  of  interest involving  the  Tax  Losses,  including an
expression of interest provided by MDS  in September 2003. Hemosol received  two
non-binding  written proposals  for transactions  involving the  Tax Losses from
parties other than MDS.

     The first  proposal  was for  a  reorganization of  Hemosol  involving  the
transfer  of the Blood Products Business (together with $6 million funded by the
principals of the proposed  transaction) to a new  entity in which  Shareholders
would  receive  an  equivalent  pro  rata  equity  interest.  Shareholders would
continue with a 20% equity interest  in Hemosol (which would receive $2  million
from  the  principals of  the proposed  transaction) and  Hemosol would  seek to
acquire businesses to utilize the Tax  Losses. The second proposal involved  the
distribution  of  the  Blood Products  Business  to the  Shareholders  (after an
approximate $3 million cash  infusion funded by the  principals of the  proposed
transaction).  Shareholders would continue with a  5% equity interest in Hemosol
and Hemosol would seek to acquire businesses to utilize the Tax Losses.

     Hemosol did not pursue such proposals, as they involved cash infusions into
the Blood  Products Business  that were  significantly below  the range  of  $10
million  to  $15 million  referred to  in  the Letter  of Understanding  and, in
Hemosol's view, the likelihood  of the successful  completion of such  proposals
was  below that of  the proposal from  MDS, particularly in  light of MDS having
obtained the Tax Ruling.

     In addition,  Hemosol  has  been considering  alternative  transactions  to
improve  its financial  position. On  November 28,  2003, Hemosol  completed the
Special Warrant Offering  (as defined  and discussed  in "Hemosol  Prior to  the
Arrangement  --  Special  Warrant  Offering")  which  raised  gross  proceeds of
$5,881,350. Although  the  proceeds from  the  Special Warrant  Offering  helped
improve  its  financial  condition,  Hemosol  requires  additional  resources to
continue the development  of HEMOLINK and  its other product  candidates and  to
implement  the recently announced alliance  with ProMetic. Hemosol believes that
the  Arrangement  represents  an  alternative   to  equity  financing  that   is
considerably  less dilutive  than and  avoids the  other limitations  of raising
equity capital.

REASONS FOR THE ARRANGEMENT

     The Arrangement provides Hemosol with the opportunity to raise cash for the
Blood Products Business in a manner that is considerably less dilutive than, and
avoids the  other limitations  of, raising  equity capital  and will  allow  New
Hemosol to continue the development of HEMOLINK and the other product candidates
of  Hemosol and to advance the implementation of the recently announced alliance
with ProMetic.

     Although New Hemosol will not have  the future benefit of applying the  Tax
Losses  against income, it is expected  that the Blood Products Partnership will
not be able to generate sufficient revenues from the Blood Products Business  in
the  near term to utilize such Tax Losses  and that it will continue to generate
additional tax losses until it is  able to commercialize HEMOLINK and/or one  or
more  of its other product candidates  or generate revenues from the utilization
of the Hemolink Building. In addition, the Blood Products Partnership will  have
the  ability to  utilize the  undepreciated capital  cost of  the Blood Products
Assets against future income.

EFFECTS OF THE ARRANGEMENT

IF THE ARRANGEMENT IS NOT EFFECTED

     If the Arrangement is not  effected, Hemosol intends to continue  operating
the  Blood Products Business. However, Hemosol's  ability to continue as a going
concern will be  dependent on its  ability to secure  additional financing.  See
"Risk Factors -- Risks Relating to the Blood Products Partnership".

BENEFITS AND DETRIMENTS TO HEMOSOL'S BLOOD PRODUCTS BUSINESS AND PUBLIC
SHAREHOLDERS

     The  Arrangement will result  in the following  benefits to Hemosol's Blood
Products Business and Public Shareholders:

     -  the Blood Products Business will receive a cash infusion of $16  million
        and  Public Shareholders will have the same shareholdings in New Hemosol
        (which will own approximately  93% of the equity  interest in the  Blood
        Products Partnership) that they currently have in Hemosol;

                                        17


     -  Public   Shareholders  will   indirectly  receive,   in  the  aggregate,
        approximately 0.44% of the  equity of the  Labs Business (through  their
        ownership of not less than 52.5% of the Labco Class A Shares); and

     -  MDS will surrender the Surrendered Warrants.

     The  Arrangement  will result  in the  following  detriments to  the Public
Shareholders:

     -  approximately 7% of the equity  interest in the Blood Products  Business
        (of  which  Shareholders, including  MDS, currently  own 100%)  will, in
        effect, be transferred  to Labco, of  which MDS will  own 99.56% of  the
        equity;

     -  neither  New  Hemosol  nor the  Blood  Products Business  will  have the
        benefit of applying the Tax Losses against income in the future;

     -  the Public Shareholders will not be entitled to participate in the first
        $16 million of profits of the Labs Partnership following the Arrangement
        because such profits will be used to retire the $16 million loan made by
        MDS to  the Labs  Partnership to  fund the  cash infusion  to the  Blood
        Products Business;

     -  the  Blood  Products  Business  will be  carried  on  through  a limited
        partnership resulting  in  additional  administrative  expense  and  the
        requirement  to seek  the approval of  Labco, as a  limited partner, for
        certain matters; and

     -  US Holders will likely be treated as receiving a taxable distribution of
        New Hemosol Shares from Labco for U.S. federal income tax purposes. This
        deemed distribution  may result  in US  Holders incurring  U.S.  federal
        income  tax liability. See "Income  Tax Considerations -- Certain United
        States Federal Income Tax Considerations".

BENEFITS AND DETRIMENTS TO MDS AND MDS SUBCO

     The Arrangement will result in the following benefits to MDS and MDS Subco:

     -  the Tax Losses  will be utilized  against income generated  by the  Labs
        Business,  following which MDS will  be entitled to approximately 99.56%
        of such after-tax income through dividends or other distributions on the
        Labco Class A Shares  and the Labco Class  B Non-Voting Shares  (through
        its  ownership of 99.56% of the equity  of Labco), after the $16 million
        loan made by MDS to the Labs Partnership is retired;

     -  approximately 7% of the equity  interest in the Blood Products  Business
        (of  which  Shareholders, including  MDS, currently  own 100%)  will, in
        effect, be transferred  to Labco, of  which MDS will  own 99.56% of  the
        equity;

     -  based  on the audited  consolidated financial statements  of Hemosol for
        the year  ended December  31,  2003 incorporated  by reference  in  this
        Circular,  MDS's  11.7%  equity  interest in  Hemosol  as  of  such date
        represented a net book value of approximately $9 million and a net  loss
        of  approximately $4.1 million. Upon  completion of the Arrangement, MDS
        will hold,  directly or  indirectly,  an 11.7%  equity interest  in  New
        Hemosol  (which will own approximately 93% of the equity interest in the
        Blood  Products  Partnership)  (assuming  current  shareholdings  remain
        constant)  and  a  99.56%  equity  interest  in  Labco  (which  will own
        approximately  7%  of  the  equity   interest  in  the  Blood   Products
        Partnership  and 99.99% of the equity interest in the Labs Partnership).
        In addition, through  its wholly-owned subsidiary,  MDS Subco, MDS  will
        own  0.01% of the equity interest in  the Labs Partnership. As a result,
        MDS will own (i) 17.85% of the net book value and net loss of the  Blood
        Products  Partnership which, based on the audited consolidated financial
        statements of Hemosol for the year  ended December 31, 2003, would  have
        been  $13.74 million and $6.24 million, respectively, and (ii) 99.56% of
        the net book value and net  income of the Labs Partnership which,  based
        on the unaudited summary financial information for the Labs Business for
        the year ended October 31, 2003, would have been $33.4 million and $47.4
        million,  respectively (see "The Labs  Business After the Arrangement --
        Unaudited Summary Financial Information Concerning the Labs  Business");
        and

     -  MDS  Subco will  hold a 0.01%  general partnership interest  in the Labs
        Partnership.

     The Arrangement will result in the following detriments to MDS:

     -  $16 million of  the revenues  from the Labs  Business (to  which MDS  is
        currently  100%  entitled) will  be used  to fund  the $16  million cash
        infusion into the Blood Products Business;

                                        18


     -  MDS will indirectly transfer  approximately 0.44% of  the equity of  the
        Labs  Business to  Public Shareholders  (through their  ownership of not
        less than 52.5% of the Labco Class A Shares);

     -  MDS will surrender the Surrendered Warrants;

     -  the Labs  Business will  be  carried on  through a  limited  partnership
        resulting  in additional  administrative expense and  the requirement to
        seek the approval of Labco, as a limited partner, for certain matters;

     -  MDS will hold not more than 47.5% of the voting shares of Labco  despite
        owning 99.56% of the equity of Labco; and

     -  the Labs Business will be exposed to pre-existing liabilities of Hemosol
        to  the  extent  that  they  are not  satisfied  by  the  Blood Products
        Partnership directly or pursuant to the Labco Indemnity Agreement.

     In addition,  as an  11.7% shareholder  of Hemosol  (assuming that  current
shareholdings  in Hemosol  remain constant),  MDS will  also participate  in the
benefits and detriments to the Public Shareholders discussed under "--  Benefits
and  Detriments to  Hemosol's Blood  Products Business  and Public Shareholders"
above.

RECOMMENDATION OF THE INDEPENDENT COMMITTEE

     On September 17, 2003, the  Hemosol Board formed the Independent  Committee
for  the purpose of  evaluating the Arrangement,  overseeing the negotiations of
the terms of the Arrangement and making a recommendation to the Hemosol Board as
to whether the Arrangement is in the best interests of Hemosol and whether it is
fair,  from  a  financial  point  of  view,  to  Non-MDS  Securityholders.   The
Independent Committee is comprised of three directors who are not related to MDS
or  its affiliates, who are not employees of Hemosol and who are independent for
the purposes of Rule 61-501 and Policy Q-27, namely Mitchell J. Kostuch,  George
W. Masters and Edward E. McCormack.

     On  February 11, 2004, the Independent Committee unanimously concluded that
the  Arrangement  is  fair,  from  a   financial  point  of  view,  to   Non-MDS
Securityholders and is in the best interests of Hemosol and recommended that the
Hemosol  Board  approve  the  Arrangement.  In  reaching  such  conclusions, the
Independent Committee obtained the advice of DWPV and KPMG, completed a detailed
examination  of  the  process  leading  to  the  execution  of  the  Arrangement
Agreement, examined the terms and conditions of the Arrangement, the Arrangement
Agreement  and the KPMG Fairness Opinion,  had discussions with Hemosol's senior
management with respect to, among other things, the business, assets,  financial
condition  and  prospects  of  Hemosol,  reviewed  the  information  provided in
connection with the Arrangement, had discussions with the professional  advisors
to Hemosol and examined all other documents and information that the Independent
Committee,  DWPV  and  KPMG  considered  relevant  to  review.  The  Independent
Committee regularly  consulted with  DWPV  and KPMG  during  the course  of  its
evaluation  of  the Arrangement.  The  Independent Committee  believes  that the
analysis performed  by  KPMG in  connection  with rendering  the  KPMG  Fairness
Opinion  is reasonable. In  reaching its conclusions,  the Independent Committee
considered and relied upon, among other things, the following:

     -  KPMG's conclusion in the KPMG Fairness Opinion that, as at February  11,
        2004,  the  Arrangement is  fair,  from a  financial  point of  view, to
        Non-MDS Securityholders;

     -  the fact that New Hemosol will receive cash proceeds of $16 million  and
        the other terms, conditions and structure of the Arrangement;

     -  the  quantum  of the  Tax Losses,  the limited  number of  companies and
        businesses capable of benefiting  from such quantum of  Tax Losses in  a
        single transaction and the transaction costs and uncertainty involved in
        carrying out more than one transaction;

     -  the  Arrangement allows Shareholders to continue  with a pro rata equity
        interest in New Hemosol, the  effective successor to the Blood  Products
        Business,  that  will  be  substantially equivalent  to  their  pro rata
        interest in Hemosol immediately prior to the Arrangement;

     -  the Hemosol Board's ability under the Arrangement Agreement to  respond,
        if  required in accordance with its fiduciary duties, to any unsolicited
        proposal by a third party that would, if consummated in accordance  with
        its  terms,  result  in a  transaction  that  would be  superior  to the
        Arrangement;

     -  the fact that  interested third parties  would not, as  a result of  the
        Arrangement  Agreement, be precluded from  subsequently proposing a more
        favourable transaction,  provided  that  Hemosol would  be  required  to

                                        19


        pay  an  expense  reimbursement  in the  event  that  it  terminated the
        Arrangement Agreement in favour of an agreement with a third party;

     -  the condition that, in  order to be effective,  the Arrangement must  be
        approved   by  two-thirds   of  the  votes   cast  at   the  Meeting  by
        Securityholders and by a  majority of the votes  cast at the Meeting  by
        Minority Shareholders, and must also be approved by the Court which will
        determine the fairness of the Arrangement;

     -  Hemosol's  business, assets,  financial condition  and future prospects,
        including its current financial condition;

     -  Hemosol's senior management's view that  the Arrangement is in the  best
        interests of Hemosol;

     -  the  financing alternatives  that are  reasonably available  to Hemosol,
        including an  assessment  of  potential alternative  transactions  of  a
        similar  nature with other  parties and certain  expressions of interest
        from third parties made to management prior to the entering into of  the
        Letter  of Understanding, each of which  was financially inferior to the
        Arrangement;

     -  the  likelihood  of  the  successful  completion  of  the   Arrangement,
        particularly in light of MDS having obtained the Tax Ruling; and

     -  as  the Arrangement will likely be  treated as a taxable distribution of
        New Hemosol Shares by  Labco for U.S. federal  income tax purposes  (see
        "Income  Tax Considerations -- Certain  United States Federal Income Tax
        Considerations"), the fact that the  Arrangement has been structured  to
        minimize the portion of such distribution that is taxable to US Holders.

     The  foregoing  discussion of  the information  and factors  considered and
evaluated by the Independent Committee is not intended to be exhaustive, but  is
intended   to  include  all  material  factors  considered  by  the  Independent
Committee. The Independent Committee believes that the foregoing factors and the
Independent Committee's  active  involvement  in  overseeing  the  arm's  length
negotiations  with MDS adequately support  the Independent Committee's belief as
to the substantive fairness of  the Arrangement to Non-MDS Securityholders.  The
Independent Committee's belief as to the substantive fairness of the Arrangement
to  Non-MDS Securityholders was not  based upon any of  the following, as it did
not believe they were relevant in the  circumstances: the net book value of  the
Hemosol Shares, the liquidation value of Hemosol, the purchase prices previously
paid  by MDS or its  affiliates for Hemosol Shares and  the substance of the PwC
Draft Report described under "Special Factors  -- Reasons Why MDS and MDS  Subco
Consider  the Arrangement to  be Fair to Non-MDS  Securityholders" and "-- Draft
Report of PricewaterhouseCoopers LLP". Hemosol  has not received any firm  offer
from  any  unaffiliated person  during  the past  two  years for  any  merger or
consolidation of Hemosol, the sale or  other transfer of all or any  substantial
part  of the  assets of  Hemosol, or any  purchase of  Hemosol's securities that
would enable the purchaser to exercise control over Hemosol.

     In addition, in light  of the number and  variety of factors considered  by
the  Independent Committee in connection with  its evaluation of the fairness of
the Arrangement,  the Independent  Committee  does not  find it  practicable  to
assign  relative weights to  the foregoing factors and,  accordingly, did not do
so.

RECOMMENDATION OF THE HEMOSOL BOARD

     After careful  consideration  of  the Independent  Committee's  report  and
conclusions,  the KPMG  Fairness Opinion  and the  other factors  considered and
relied upon  by  the Independent  Committee,  the  Hemosol Board  (none  of  the
directors  of which, with the exception of Hemosol's chief executive officer, is
an employee of Hemosol) unanimously (excluding R. Ian Lennox, Wilfred G. Lewitt,
Edward K.  Rygiel and  Nelson M.  Sims  who are  related to  MDS, each  of  whom
abstained  from voting pursuant to the  OBCA) determined that the Arrangement is
in the best interests of Hemosol and is fair, from a financial point of view, to
Non-MDS Securityholders and resolved to  recommend that Securityholders vote  in
favour of the Arrangement Resolution.

     In reaching its conclusion that the Arrangement is in the best interests of
Hemosol  and is fair, from a financial point of view, to Non-MDS Securityholders
and  its   recommendation   that  Securityholders   vote   in  favour   of   the

                                        20


Arrangement Resolution, the Hemosol Board considered information with respect to
the business and affairs of Hemosol, as well as the following factors:

     -  the factors considered and relied upon by the Independent Committee;

     -  the  unanimous  recommendation  of the  Arrangement  by  the Independent
        Committee;

     -  the fact that  the Independent  Committee consisted  of independent  and
        disinterested  directors appointed to represent the interests of Non-MDS
        Securityholders; and

     -  the fact  that the  Independent Committee  retained and  was advised  by
        KPMG,  as independent financial  advisor, and by  DWPV, as outside legal
        counsel.

     This discussion of the information and factors considered and evaluated  by
the  Hemosol Board is not  intended to be exhaustive  but is believed to include
all material factors considered by the  Hemosol Board. In addition, in light  of
the  number and variety of factors considered by the Hemosol Board in connection
with its evaluation of the fairness  of the Arrangement, the Hemosol Board  does
not find it practicable to assign relative weights to the foregoing factors and,
accordingly, did not do so.

     THE  HEMOSOL BOARD  RECOMMENDS THAT SECURITYHOLDERS  VOTE IN  FAVOUR OF THE
ARRANGEMENT RESOLUTION.

KPMG FAIRNESS OPINION

     The Independent  Committee  retained  KPMG to  provide  financial  advisory
services  and a  fairness opinion in  connection with the  Arrangement. KPMG was
engaged by the Independent  Committee upon the  recommendation of management  of
Hemosol which considered, as part of the process of the selection of a financial
advisor,  factors such as expertise, cost  and potential conflicts. KPMG was not
engaged to  prepare and  did not  prepare  a formal  valuation of  Hemosol,  New
Hemosol, Labco, the Blood Products Business or the Labs Business or any of their
securities  or assets and the KPMG Fairness Opinion should not be construed as a
formal valuation of such entities or their securities or assets.

     KPMG is one  of the  world's largest  professional services  organizations,
offering  a  broad  range  of services.  KPMG's  professionals  have significant
experience in  advising  a  broad  range  of  companies  for  various  purposes,
including   securities   law   compliance,   fairness   opinions,   mergers  and
acquisitions, corporate income tax, and litigation matters, among other  things.
KPMG  is not an insider, associate or  affiliate of Hemosol or MDS. Neither KPMG
nor any of its affiliates  is an advisor to MDS  in respect of the  Arrangement.
KPMG  has  not been  engaged  within the  last  two years  to  perform financial
advisory, tax or  other services  for, or been  involved in  a prior  valuation,
appraisal  or  review of  the financial  status  of Hemosol  or MDS,  other than
pursuant  to  this  engagement.  Accordingly,  the  Independent  Committee   was
satisfied that KPMG was qualified and competent to provide such services and was
independent of MDS and its affiliates, including for the purposes of Rule 61-501
and Policy Q-27.

     Hemosol  and KPMG entered into a formal engagement agreement dated November
24, 2003. The terms of the engagement agreement provide that KPMG is to be  paid
fees  for its  services as  financial advisor  to the  Independent Committee. In
addition, KPMG  is  to  be  reimbursed for  administration  expenses  and  other
disbursements  and  indemnified by  Hemosol in  certain circumstances.  The fees
payable to KPMG under its engagement agreement are not contingent in whole or in
part upon the  success of  the Arrangement and  KPMG has  no material  financial
interest  in  Hemosol  or  MDS  that  may be  affected  by  the  success  of the
Arrangement.

     At the meeting  of the  Independent Committee  on February  11, 2004,  KPMG
orally  set out  its conclusions  regarding the matters  dealt with  in the KPMG
Fairness Opinion (which were  ultimately set out in  the KPMG Fairness  Opinion)
and  the  financial  analysis underlying  its  conclusions. All  members  of the
Independent Committee were present at the  meeting on February 11, 2004 and  had
an  opportunity  to  ask  questions  regarding  KPMG's  presentation.  KPMG  has
concluded that, as of February 11, 2004, and subject to the various assumptions,
limitations and  qualifications  set  out  in the  KPMG  Fairness  Opinion,  the
Arrangement is fair, from a financial point of view, to Non-MDS Securityholders.

     The  full text of the KPMG Fairness Opinion, which sets out the assumptions
made, matters  considered,  limitations of  the  review undertaken  and  various
qualifications in connection with the KPMG Fairness Opinion is attached as Annex
E  to this Circular and is also filed  as an exhibit to the Schedule 13E-3 filed
by Hemosol, MDS and MDS Subco with  the SEC pursuant to the requirements of  the
U.S.  Exchange Act. The KPMG Fairness Opinion  is addressed to the Hemosol Board
for its  use  in connection  with  its evaluation  of  the Arrangement,  and  is

                                        21


not   intended  to  be,  and  does  not  constitute,  a  recommendation  to  any
Securityholder as to  how such Securityholder  should vote with  respect to  the
Arrangement Resolution.

     The Fairness Opinion states that it may not be used by any person or relied
upon  by any person, other than the  Independent Committee or the Hemosol Board,
without the prior  written consent of  KPMG. KPMG has  expressly disclaimed  any
liability  by reason of the use of the Fairness Opinion by any person other than
the Independent Committee  or the  Hemosol Board.  Whether or  not the  Fairness
Opinion  could be relied upon  by any Securityholder to  support a claim against
KPMG is an issue that,  if asserted, would be resolved  by a court of  competent
jurisdiction.  The resolution of such  issue would have no  effect on the rights
and responsibilities of  the Independent  Committee or the  Hemosol Board  under
applicable  Canadian  or  United  States  law,  and  the  availability  or  non-
availability of a defence would have no effect on the rights or responsibilities
of the Independent Committee, the Hemosol Board or KPMG under applicable  United
States federal securities law.

     The  summary of the KPMG Fairness  Opinion contained herein is qualified in
its entirety  by  reference to  the  full text  of  the KPMG  Fairness  Opinion.
Securityholders are urged to read the KPMG Fairness Opinion carefully and in its
entirety.

     In  preparing the KPMG  Fairness Opinion, KPMG  considered such factors and
conducted such analyses, investigations, research and testing of assumptions  as
were  deemed by it to be appropriate  in the circumstances. KPMG relied upon and
assumed the completeness, accuracy  and fair presentation  of all financial  and
other  information, data,  advice, opinions, representations  and other material
obtained by it from public sources or provided to it by, on behalf of or at  the
request  of the  Independent Committee,  Hemosol or  MDS, and  the KPMG Fairness
Opinion is conditional upon such  completeness, accuracy and fair  presentation.
KPMG  has assumed that the  projections provided to it  by management of Hemosol
and/or MDS represent  the best  estimate of the  most probable  results for  the
Blood  Products Business or the Labs Business for the periods presented therein.
Senior officers of Hemosol have represented to KPMG that, among other things, no
changes have occurred in the material facts  set out or referred to in any  such
information  subsequent to  the date  that such  information was  provided which
would have or  which could  reasonably be expected  to have  a material  adverse
effect  on the KPMG Fairness Opinion and  that there are no material facts about
Hemosol not contained in or referred to  in the information provided to KPMG  by
Hemosol  in connection with the KPMG  Fairness Opinion which could reasonably be
expected to affect materially the  assumptions used, the procedures adopted  and
the  scope of  the review undertaken  by KPMG  in providing its  services and in
rendering the KPMG Fairness Opinion.

     In preparing  the  KPMG Fairness  Opinion,  KPMG reviewed,  considered  and
relied upon, among other things, the following:

     -  the Arrangement Agreement and the agreements or other documents attached
        as  Exhibits  thereto,  including  the Plan  of  Arrangement,  the Blood
        Products Partnership Agreement, the  Labs Partnership Agreement and  the
        Labs Management Agreement;

     -  the  financial statements of Hemosol, including the audited consolidated
        balance sheets, statements of loss and deficit and cash flow  statements
        as  at and for  the fiscal years  ended December 31,  2001 and 2002, the
        unaudited consolidated balance sheet, statement of loss and deficit  and
        cash  flow statement as at and for the nine-month period ended September
        30, 2003;

     -  other publicly available information  concerning Hemosol, including  the
        Annual  Information Form dated  May 27, 2003, the  2002 Annual Report to
        Shareholders, the  Management Information  Circular dated  December  22,
        2003 and the Short-Form Prospectus dated January 13, 2004;

     -  income  tax returns of  Hemosol and schedules  prepared by management of
        Hemosol summarizing the nature and estimated amount of tax attributes of
        Hemosol as at December 31, 2003;

     -  Hemosol's  management's   financial  projections   of  EBITDA,   capital
        expenditures and licence payments for the years ending December 31, 2004
        through 2010;

     -  reported prices and trading activity for the Hemosol Shares;

     -  discussions  with representatives  of senior management  of Hemosol with
        respect to  the current  operations and  future prospects  of the  Blood
        Products Business;

     -  expressions  of interest  which Hemosol  received regarding transactions
        designed to allow Hemosol to benefit from the value of the Tax Losses;
                                        22


     -  publicly available  information  concerning MDS,  including  the  Annual
        Information  Form dated January  31, 2003 and the  2002 Annual Report to
        MDS's shareholders;

     -  unaudited summary financial information  for the Labs Business  provided
        by  MDS, including a balance sheet as  at October 31, 2003 and operating
        results for the  years ending  October 31,  1999 to  2003 and  projected
        operating results for the year ending October 31, 2004;

     -  certain  public  stock market  and  financial data  for  publicly traded
        companies with operations comparable to the Labs Business;

     -  discussions with  representatives  of  senior  management  of  MDS  with
        respect  to  the current  operations and  future  prospects of  the Labs
        Business;

     -  discussions with the legal and tax advisors to Hemosol in respect of the
        financial and tax impacts of the Arrangement to Non-MDS Securityholders;

     -  review  of  transactions  involving  tax  attributes,  including   those
        publicly  announced  and  other non-public  transactions  in  which KPMG
        advised; and

     -  general industry and  economic information obtained  from other  sources
        considered reliable and necessary by KPMG in the circumstances.

     The  following is a summary of the material financial analyses used by KPMG
in connection  with  providing the  KPMG  Fairness Opinion  to  the  Independent
Committee and the Hemosol Board.

     KPMG  believes that  the assessment of  fairness from a  financial point of
view must be determined in the context of each particular transaction. KPMG  has
based  the KPMG Fairness Opinion on  methods and techniques that KPMG considered
appropriate in  the circumstances  and considered  a number  of factors  in  its
review  of the Arrangement. The  preparation of a fairness  opinion is a complex
process and it is not necessarily  susceptible to partial analysis or a  summary
description.  Accordingly, KPMG's analyses must be considered as a whole and the
selection of portions  of KPMG's  analyses or  the factors  considered by  KPMG,
without considering all factors and analyses together, could create a misleading
view of the approaches underlying the KPMG Fairness Opinion.

     In  order to assess the fairness of  the Arrangement from a financial point
of view to Non-MDS Securityholders,  KPMG reviewed and considered the  estimated
value of each constituent component to be transferred and/or conveyed as part of
the  overall  Arrangement using  procedures and  approaches which  it considered
appropriate and acceptable in the circumstances based on the financial and other
information as available or as provided by either Hemosol or MDS. In particular,
KPMG  assessed  the  value  of  the  following  constituent  components  of  the
Arrangement:  (i) the  Labco Class A  Shares to be  distributed to Shareholders;
(ii) the Surrendered Warrants; (iii) the 7% limited partnership interest in  the
Blood Products Business to be held by Labco, in which MDS will own 99.56% of the
equity; and (iv) the Tax Losses.

VALUE OF LABCO CLASS A SHARES

     In  assessing  the  estimated value  of  the  Labco Class  A  Shares  to be
distributed to Shareholders pursuant  to the Arrangement, KPMG  was of the  view
that  the  capitalized  EBITDA  approach  to the  valuation  of  Labco  would be
appropriate as the  primary business of  Labco (being the  Labs Business)  would
involve  revenues  and expenses  that are  relatively predictable  and constant.
EBITDA is a non-GAAP measure and should not be considered an alternative to  any
other  measure of performance presented in accordance with GAAP. EBITDA, as used
by MDS in its projections relating to the Labs Business provided to KPMG, is not
necessarily comparable with similarly titled measures of other companies because
not all companies calculate EBITDA in the same fashion.

     Based  on  information  provided  to  KPMG  by  MDS,  after   normalization
adjustments and the inclusion of expected additional expenses resulting from the
reorganization  of the Labs Business contemplated by the Arrangement, EBITDA for
the Labs Business  has been in  the range  of approximately $46  million to  $48
million  per fiscal year during the fiscal  years ended October 31, 2001 to 2003
and is projected  to be  approximately $45 million  for the  fiscal year  ending
October 31, 2004. The qualifications in respect of projections for Hemosol under
"--  Management Projections" below apply equally to such projection for the Labs
Business.

                                        23


     KPMG reviewed the public stock market  trading multiples as of January  21,
2004 for the companies listed in the table below that have operations comparable
to the Labs Business and selected an EBITDA multiple range of 10.5x to 11.0x.

<Table>
<Caption>
                                                                                               EBITDA
                                                        AS OF JANUARY 21, 2004        (TRAILING TWELVE MONTHS)
                                                   --------------------------------   ------------------------
COMPANY                                            TRADING PRICE   ENTERPRISE VALUE      AMOUNT       MULTIPLE
- -------                                            -------------   ----------------   -------------   --------
                                                                    (In millions)     (In millions)
                                                                                          
MDS Inc..........................................      $20.65           $3,260.6          $310.0       10.5x
CML Healthcare Inc...............................      $51.70           $1,088.9          $ 77.6       14.0x
Covance Inc......................................    US$28.43         US$1,646.0        US$159.4       10.3x
LabOne Inc.......................................    US$35.13         US$  538.0        US$ 45.5       11.8x
Laboratory Corp. of America......................    US$40.76         US$6,708.2        US$624.9       10.7x
Quest Diagnostics................................    US$78.01         US$9,123.1        US$889.2       10.3x
</Table>

     Based  on a normalized  EBITDA of $45  million for the  Labs Business and a
range of EBITDA multiples of 10.5x to 11.0x, KPMG arrived at an indicative value
for Labco in the range of $472.5  million to $495 million, exclusive of the  net
present value of the Tax Losses to Labco. Including the net present value of the
Tax  Losses (based on estimated  pre-tax profitability of Labco  in the order of
$41 million per year and a discount rate of 10%) of $95 million in the value  of
Labco  resulted in an indicative value for  Labco in the range of $567.5 million
to $590 million, resulting in an indicative value in the range of $2.838 million
to $2.95 million for the  0.5% equity interest in Labco  that the Labco Class  A
Shares to be distributed to Shareholders will represent.

VALUE OF SURRENDERED WARRANTS

     In assessing the value of the Surrendered Warrants to be surrendered by MDS
pursuant  to  the  Arrangement,  KPMG  considered  the  intrinsic  value  of the
Surrendered Warrants and the  value of the Surrendered  Warrants implied by  the
application of the Black-Scholes option pricing model.

     Using  the Black-Scholes option  pricing model adjusted  to account for the
dilutive impact of  the Surrendered Warrants  and assuming a  price per  Hemosol
Share  of $1.60 and volatility of 100%,  KPMG determined the indicative value of
the Surrendered Warrants to  be $1.18 per Surrendered  Warrant for an  aggregate
indicative value of $2.9 million for the Surrendered Warrants.

VALUE OF BLOOD PRODUCTS BUSINESS

     In  assessing the value of the  approximate 7% limited partnership interest
in the  Blood  Products  Business  to  be retained  by  Labco  pursuant  to  the
Arrangement,  KPMG  considered  a discounted  cash  flow analysis  and  a market
capitalization analysis. A public market  analysis was also considered by  KPMG,
but  not employed since  it was determined  that there were  no public companies
comparable to the Blood Products Business.

Discounted Cash Flow Analysis

     The discounted cash flow  (also referred to as  "DCF") analysis provided  a
net  present  value of  the projected  after-tax  free cash  flows of  the Blood
Products Business based on the following:

     -  EBITDA, capital expenditures and licence payment projections prepared by
        Hemosol's management for the years ending December 31, 2004 through 2010
        (see "-- Management Projections" below);

     -  future expected  cash taxes  projected by  KPMG based  on (i)  Hemosol's
        management's  projections referred to above, (ii) an assumption that $80
        million of  undepreciated  capital  cost would  remain  with  the  Blood
        Products Business and (iii) an income tax rate of 36%;

     -  future  expected working capital requirements projected by KPMG based on
        (i) Hemosol's  management's  projections  referred  to  above  and  (ii)
        assumed days sales outstanding and days expenses outstanding of 30 days;

     -  a  terminal growth rate of 2.5% (used in the calculation of the terminal
        value);

     -  a discount rate in the range of 30% to 35%;

                                        24


     -  the value of certain product candidates of Hemosol and redundant  assets
        not included in management's projections of approximately $7.5 million;

     -  the  $16 million cash infusion to  the Blood Products Business resulting
        from the Arrangement; and

     -  the outstanding Bank Loan of $20 million.

     To calculate the after-tax free cash  flow of the Blood Products  Business,
KPMG  deducted  estimated  future  cash  taxes  and  estimated  working  capital
requirements, both of which were independently projected by KPMG, from Hemosol's
management's projected pre-tax cash flow prior to working capital needs.

<Table>
<Caption>
                                    2004      2005      2006      2007     2008     2009      2010
                                   -------   -------   -------   ------   ------   -------   -------
                                                            (In thousands)
                                      $         $         $        $        $         $         $
                                                                        
Pre-tax free cash flow prior to
  working capital needs, as
  projected by Hemosol's
  management.....................  (19,353)  (15,796)  (18,920)  10,963   63,708   103,799   147,493
Cash taxes.......................       --        --        --       --   (8,983)  (28,258)  (46,721)
Working capital..................    1,106      (416)     (631)  (1,700)  (3,595)   (3,295)   (3,591)
                                   -------   -------   -------   ------   ------   -------   -------
After-tax free cash flow.........  (18,247)  (16,212)  (19,551)   9,263   51,130    72,246    97,181
                                   -------   -------   -------   ------   ------   -------   -------
</Table>

     Based on the  foregoing, KPMG  determined, using the  discounted cash  flow
analysis, the indicative value "en bloc" of the Blood Products Business to be in
the  range of $55  million to $85 million  (based on a discount  rate of 35% and
30%, respectively), resulting in an indicative  pro rata value of $3.85  million
to  $5.95 million  for the  approximate 7%  limited partnership  interest in the
Blood Products Business to be, in effect, retained by Labco.

<Table>
<Caption>
                                                                DISCOUNT RATE
                                                              -----------------
                                                                35%       30%
                                                              -------   -------
                                                               (In thousands)
                                                                 $         $
                                                                  
Discounted cash flow value based on projections.............   51,800    81,700
Value of assets not reflected in projections................    7,500     7,500
                                                              -------   -------
Value of operations/business................................   59,300    89,200
Cash to be received.........................................   16,000    16,000
Bank Loan...................................................  (20,000)  (20,000)
                                                              -------   -------
"En bloc" value of the Blood Products Business under DCF
  approach..................................................   55,300    85,200
                                                              -------   -------
Value of a pro rata 7% interest in the Blood Products
  Business..................................................    3,850     5,950
                                                              -------   -------
</Table>

Market Capitalization Analysis

     The market capitalization  analysis provided  an indicative  value for  the
Blood  Products Business of  approximately $90 million based  on a Hemosol Share
price  of  $1.60  and  approximately  56  million  Hemosol  Shares  outstanding,
resulting  in an indicative value of $6.3 million for the approximate 7% limited
partnership  interest  in  the  Blood  Products  Business  to  be,  in   effect,
transferred to Labco.

VALUE OF TAX LOSSES

     Based  on KPMG's  analysis, the  balance of  the various  Tax Loss accounts
which would remain with  Labco following the completion  of the Arrangement  was
approximately  $304 million as at December 31,  2003. This quantum of Tax Losses
is based on certain  assumptions, including the assumption  that $80 million  of
undepreciated  capital costs will be assigned to the value of the Blood Products
Business for the purposes of the  relevant tax elections in connection with  the
transfer  of  the Blood  Products Business  from Hemosol  to the  Blood Products
Partnership and the exclusion  of $10 million of  financing expenses of  Hemosol
due to uncertainty as to their characterization.

     KPMG  determined the effective or implied  transfer value of the Tax Losses
in the Arrangement based  on the indicative values  for each of the  constituent
components  to  be,  in  effect,  transferred and/or  conveyed  as  part  of the

                                        25


Arrangement (other  than the  Tax Losses)  together with  the $16  million  cash
infusion to the Blood Products Business as follows:

     (a)  using  the discounted cash  flow analysis to  value the Blood Products
          Business, KPMG determined that the value of the Tax Losses implied  in
          the  Arrangement was in the range of $15.8 million to $18.0 million or
          $0.052 to $0.059 per dollar of Tax  Losses. The low end of such  range
          was  based on  a discount  rate of  30% for  the discounted  cash flow
          analysis and  the low  end  of the  range  of the  comparable  trading
          multiples  for the Labs Business. The high end of such range was based
          on a discount rate  of 35% for the  discounted cash flow analysis  and
          the  high end of the range of the comparable trading multiples for the
          Labs Business; and

     (b)  using the market capitalization analysis  to value the Blood  Products
          Business,  KPMG determined that the value of the Tax Losses implied in
          the Arrangement was in the range of $15.5 million to $15.6 million  or
          approximately  $0.051 per  dollar of Tax  Losses. The low  end of such
          range was based on the low end of the range of the comparable  trading
          multiples  for the Labs Business. The high end of such range was based
          on the high end of the  range of the comparable trading multiples  for
          the Labs Business.

     The  following table  summarizes the  results of  the discounted  cash flow
approach and  the market  capitalization approach  for determining  the  implied
transfer value of the Tax Losses:

<Table>
<Caption>
                                                         DISCOUNTED CASH FLOW    MARKET CAPITALIZATION
                                                               APPROACH                APPROACH
                                                         ---------------------   ---------------------
                                                            LOW        HIGH         LOW        HIGH
                                                         ---------   ---------   ---------   ---------
                                                            (In thousands)          (In thousands)
                                                            $           $           $           $
                                                                                 
Effective transfers from MDS to Shareholders(1)
  Cash.................................................    16,000      16,000      16,000      16,000
  Labco 0.50% equity interest..........................     2,838       2,950       2,838       2,950
  Surrendered Warrants.................................     2,900       2,900       2,900       2,900
                                                         --------    --------    --------    --------
TOTAL..................................................    21,738      21,850      21,738      21,850
Effective transfers from Shareholders(1) to MDS
  Blood Products Partnership 7% equity interest........     5,950       3,850       6,266       6,266
  Implied value of Tax Losses..........................    15,788      18,000      15,472      15,584
                                                         --------    --------    --------    --------
TOTAL..................................................    21,738      21,850      21,738      21,850
Implied value of Tax Losses............................    15,788      18,000      15,472      15,584
  Tax Losses...........................................   304,000     304,000     304,000     304,000
  Cents per dollar of Tax Losses.......................       5.2         5.9         5.1         5.1
</Table>

- ---------------

Note:

(1)  Including MDS.

     Based  on KPMG's review of transactions involving tax attributes, including
those publicly  announced  and  other  non-public  transactions  in  which  KPMG
advised,  tax attributes have recently transacted in the range of $0.05 to $0.08
per dollar of tax  attribute resulting in  an indicative value  in the range  of
$15.2 million to $24.32 million for the Tax Losses.

     In  assessing the reasonableness of the value  of the Tax Losses implied in
the Arrangement, KPMG also  considered other factors such  as the nature of  the
consideration  to  be  received and  KPMG's  observation that  in  certain other
comparable transactions the relevant cash payment has been paid over time or may
be  subject  to   contingencies,  alternative  transactions   may  involve   the
discontinuance  or significant  restructuring of existing  operations, the large
quantum of the  Tax Losses and  the limited number  of companies and  businesses
capable  of  taking advantage  of  such quantum  of  Tax Losses  and alternative
opportunities that might be available to Hemosol based on certain expressions of
interest received  and  the  degree  of risk  associated  with  concluding  such
alternatives  as compared to the Arrangement.  In addition, KPMG also considered
certain additional factors that might influence the assessment of fairness  from
a  financial point of  view, including the potential  tax impact to Shareholders
resident in the  U.S. KPMG has  assumed that  any adverse impact  to US  Holders
would be minimal.

                                        26


MANAGEMENT PROJECTIONS

     In  connection with Hemosol's considerations of transactions to improve its
financial position, Hemosol  updated and  developed certain  information in  its
annual  budget and financial planning documents  and prepared projections of its
anticipated future operating performance  for the seven  fiscal years from  2004
through  2010.  These  projections  were in  part  provided  to  the Independent
Committee, KPMG,  MDS and  PwC  on a  confidential  basis. Hemosol  advised  the
recipients of the projections that the underlying assumptions and estimates upon
which the projections were based are subjective in many respects.

     Management   of  Hemosol  does   not  normally  project   earnings  and  is
particularly cautious  of making  projections for  extended periods  due to  the
unpredictability  of  earnings. The  projections are  forward-looking statements
that are subject  to risks  and uncertainties  that could  cause projections  to
differ materially from actual results and should be read with caution. Important
factors  that could cause Hemosol's actual results to differ materially from the
projections  include,  but  are  not  limited  to,  the  successful  and  timely
completion  of  the  pre-clinical  and  clinical  development  of  its products,
Hemosol's ability to  obtain regulatory  approvals for  its products,  Hemosol's
ability   to  manufacture  or  have  manufactured  its  products  in  commercial
quantities and at competitive costs, the competitive environment for therapeutic
and non-therapeutic protein products  derived from human  blood, the ability  to
obtain  adequate  funding under  acceptable  terms to  complete  its development
programs and other factors set forth in  "Risk Factors -- Risks Relating to  the
Blood  Products  Partnership". The  projections were  not prepared  by Hemosol's
management in the ordinary course  and are based on  a variety of estimates  and
hypothetical  assumptions made  by Hemosol's  management with  respect to, among
other things, product development, regulatory approvals, market demand, industry
performance, general economic, interest rate and financial conditions, operating
and other  revenues and  expenses, capital  expenditures and  other matters.  In
particular,  in preparing these projections,  Hemosol's management relied on the
following key assumptions:

     -  research and  development  spending was  projected  at the  2004  levels
        throughout  the  projection  period. Clinical  development  programs and
        revenues for  all pipeline  products, including  HEMOLINK, are  excluded
        from the projections;

     -  contract bio-manufacturing revenues generated from the Hemolink Building
        are projected for the period from 2004 through 2006;

     -  clinical  development  revenues  associated  with  the  ProMetic Cascade
        technology commence  in  2005  and continue  throughout  the  projection
        period; and

     -  plasma processing utilizing the ProMetic Cascade technology commences in
        2007 at 175,000 litres per year and increases to 950,000 litres per year
        in 2010.

     None  of the assumptions may be realized and they are inherently subject to
significant business, economic and competitive uncertainties and  contingencies,
all  of which  are beyond  New Hemosol's control.  Accordingly, there  can be no
assurance that  the assumptions  made in  preparing the  projections will  prove
accurate  and actual results may materially differ. In addition, the projections
do not  take  into  account any  of  the  transactions in  connection  with  the
Arrangement, which may also cause actual results to materially differ.

     The  projections summarized below were not prepared by Hemosol's management
with a view to public disclosure or compliance with the published guidelines  of
the  SEC  or the  guidelines established  by the  Institute of  Certified Public
Accountants  or  the  Canadian  Institute  of  Chartered  Accountants  regarding
projections  or forecasts, or  either United States  or Canadian GAAP. HEMOSOL'S
INDEPENDENT AUDITORS HAVE  NOT EXAMINED OR  COMPILED ANY OF  THE PROJECTIONS  OR
EXPRESSED  ANY CONCLUSION OR PROVIDED ANY FORM  OF ASSURANCE WITH RESPECT TO THE
PROJECTIONS AND, ACCORDINGLY, ASSUME NO RESPONSIBILITY FOR THEM. The projections
are included below to  give Securityholders access to  information that was  not
publicly  available  and  that  was  provided  by  Hemosol  to  the  Independent
Committee, KPMG, MDS and PwC. The Canadian Securities Administrators have issued
National Policy Statement 48, which sets forth certain requirements which  apply
to  financial projections and forecasts which  are included in certain documents
prepared by  reporting  issuers in  Canada.  THE PROJECTIONS  WERE  PREPARED  BY
HEMOSOL'S  MANAGEMENT FOR INTERNAL PURPOSES AND NOT FOR PUBLIC DISCLOSURE AND DO
NOT COMPLY WITH THE REQUIREMENTS OF NATIONAL POLICY STATEMENT 48. THE SUMMARY OF
THE SEVEN-YEAR PROJECTIONS SET OUT BELOW IS INCLUDED IN THIS DOCUMENT SOLELY  TO
COMPLY WITH DISCLOSURE OBLIGATIONS UNDER THE U.S. FEDERAL SECURITIES LAWS.

                                        27


     For these reasons, as well as the bases and underlying assumptions on which
the  projections were  compiled, the inclusion  of projections  in this Circular
should not be regarded as an indication that the projections will be an accurate
prediction of future events and they should not be relied upon as such.  Hemosol
does not assume any responsibility to any Securityholder for the reasonableness,
completeness,  accuracy or reliability  of the projections. No  one has made, or
makes, any representation to the  Securityholders regarding the projections  and
neither  Hemosol/Labco nor New Hemosol intends to update or otherwise revise the
projections to reflect  circumstances existing after  the date when  made or  to
reflect  the occurrences of  future events in the  event that any  or all of the
assumptions are shown to be in error.

     The financial  projections  set  forth below  include  EBITDA  projections.
EBITDA  is a non-GAAP measure and should not be considered an alternative to any
other measure  of performance  presented  in accordance  with United  States  or
Canadian  GAAP.  EBITDA,  as  used  by  Hemosol  in  these  projections,  is not
necessarily comparable with similarly titled measures of other companies because
not all companies calculate EBITDA in the same fashion.

<Table>
<Caption>
                                                        MANAGEMENT PROJECTIONS
                                  ------------------------------------------------------------------
                                   2004      2005      2006      2007     2008      2009      2010
                                  -------   -------   -------   ------   -------   -------   -------
                                                            (In thousands)
                                     $         $         $        $         $         $         $
                                                                        
Revenue.........................    6,500    17,000    35,026   60,331   124,519   183,088   250,513
EBITDA..........................  (13,453)   (8,396)     (720)  19,963    63,708   103,799   147,493
Capital expenditures and licence
  payments......................   (5,900)   (7,400)  (18,200)  (9,000)       --        --        --
                                  -------   -------   -------   ------   -------   -------   -------
Pre-tax cash flow prior to
  working capital needs.........  (19,353)  (15,796)  (18,920)  10,963    63,708   103,799   147,493
</Table>

REASONS WHY MDS AND MDS SUBCO CONSIDER THE ARRANGEMENT TO BE FAIR TO NON-MDS
SECURITYHOLDERS

     MDS and MDS Subco believe that, in the circumstances and after taking  into
account  the  factors  set  forth below,  the  Arrangement  is  procedurally and
substantively fair to Non-MDS Securityholders.

     As MDS and its  affiliates (as such  term is defined  in the U.S.  Exchange
Act)  collectively own approximately 11.7% of the outstanding Hemosol Shares and
four members of the current Hemosol  Board are directors, officers or  employees
of  MDS or affiliates thereof,  MDS may be deemed to  be an affiliate of Hemosol
for the purposes of Rule 13e-3 under the U.S. Exchange Act. In addition, as  MDS
Subco  and Hemosol may each  be controlled (as such term  is defined in the U.S.
Exchange Act) by MDS, MDS Subco may be deemed to be an affiliate of Hemosol  for
the purposes of Rule 13e-3 under the U.S. Exchange Act. As a result, MDS and MDS
Subco  are required, under Rule 13e-3,  to state whether they reasonably believe
that the Arrangement is fair to Non-MDS Securityholders.

     MDS AND MDS SUBCO ARE MAKING THE STATEMENTS INCLUDED IN THIS SECTION SOLELY
FOR THE PURPOSES OF  COMPLYING WITH THE REQUIREMENTS  OF RULE 13E-3 AND  RELATED
RULES  UNDER THE U.S. EXCHANGE ACT. MDS AND MDS SUBCO EXPRESSLY DO NOT UNDERTAKE
ANY FIDUCIARY RELATIONSHIP OR OBLIGATION  TO THE HEMOSOL SECURITYHOLDERS  (OTHER
THAN  ANY OBLIGATION UNDER THE U.S.  FEDERAL SECURITIES LAWS). MOREOVER, NEITHER
MDS NOR  MDS  SUBCO  CONSIDERED  THE FAIRNESS  OF  THE  ARRANGEMENT  TO  NON-MDS
SECURITYHOLDERS  IN DETERMINING TO ENTER INTO  THE ARRANGEMENT, NOR DO THEY MAKE
ANY RECOMMENDATION WITH RESPECT TO THE ARRANGEMENT TO NON-MDS SECURITYHOLDERS.

     MDS and MDS  Subco believe  that the  Arrangement is  procedurally fair  to
Non-MDS Securityholders for the following reasons:

     -  the  Independent Committee (comprised of three directors none of whom is
        related to MDS or its affiliates  or an employee of Hemosol) was  formed
        for   the  purpose  of  evaluating   the  Arrangement  and  oversaw  the
        negotiation of the terms of the Arrangement;

     -  the members  of the  Independent  Committee and  the Hemosol  Board  are
        experienced and sophisticated in business and financial matters and were
        well informed about the business, operations and prospects of Hemosol;
                                        28


     -  the  principal terms of  the Arrangement were  established through arm's
        length negotiation with the Independent Committee and the management  of
        Hemosol  (none of whom is related to  MDS or its affiliates by virtue of
        being  a  director,  officer  or  employee  of  MDS)  and  during   such
        negotiation the interests of Non-MDS Securityholders were represented by
        the  Independent Committee and the management of Hemosol and their legal
        and financial advisors;

     -  the Independent  Committee retained  KPMG as  its financial  advisor  to
        assist the Independent Committee in evaluating the Arrangement;

     -  KPMG  has reviewed the Arrangement and advised the Independent Committee
        that it believes that the Arrangement is fair, from a financial point of
        view, to  Non-MDS Securityholders,  as described  in "--  KPMG  Fairness
        Opinion";

     -  the Independent Committee and the Hemosol Board have each concluded that
        the  Arrangement is in the best interests of Hemosol and is fair, from a
        financial point of  view, to  Non-MDS Securityholders,  and the  Hemosol
        Board  has recommended  that the Securityholders  vote in  favour of the
        Arrangement, as described  in "-- Recommendation  of the Hemosol  Board"
        and "-- Recommendation of the Independent Committee";

     -  MDS  has been advised that each of  the directors of Hemosol, other than
        those affiliated with MDS, have agreed  to vote their Hemosol Shares  in
        favour of the Arrangement;

     -  the  Arrangement can only be completed if approved by the Court, and the
        Court will determine the fairness of the Arrangement; and

     -  in order for the Arrangement to be approved, at least two-thirds of  the
        votes  cast  on the  Arrangement Resolution  by Securityholders,  and at
        least a majority of the votes cast thereon by the Minority Shareholders,
        must be voted in favour of the Arrangement Resolution.

     MDS and MDS  Subco believe that  the Arrangement is  substantively fair  to
Non-MDS Securityholders for the reasons set forth below.

LESS DILUTION THAN EQUITY FINANCING

- -   The  Arrangement  provides Hemosol's  Blood  Products Business  with  a cash
    infusion of $16 million in a manner  that MDS and MDS Subco believe is  less
    dilutive  to existing Shareholders  than an equity  financing, assuming that
    Hemosol  could  raise  funds  through  an  equity  financing.   Shareholders
    immediately  prior to  the Effective Time  will receive, in  effect, one New
    Hemosol Share and one Labco Class A Share in exchange for each Hemosol Share
    held. The holdings of each  Shareholder in New Hemosol  will be on the  same
    proportionate  basis as their  holdings in Hemosol  immediately prior to the
    Effective Time.

CONSIDERATION FOR TAX LOSSES

- -   The $16 million  cash infusion  forming part  of the  consideration for  the
    transaction, when considered alone in relation to the Tax Losses, results in
    an  effective value attributed to the Tax  Losses within the range of values
    calculated by PwC in the PwC Draft Report (as described below) based on  the
    methodologies applied by PwC as set out in the PwC Draft Report. In addition
    to  the $16 million cash infusion,  MDS is also surrendering the Surrendered
    Warrants, which provides additional value  and which, if also attributed  to
    the  Tax Losses,  further increases  the effective  value attributed  to Tax
    Losses. In considering the reasonableness of  the value of such Tax  Losses,
    MDS  also  considered the  fact that  the cash  received by  Hemosol's Blood
    Products Business (other than the Escrow  Amount) will not be received  over
    time  or upon the occurrence of contingent events, unlike other transactions
    involving tax losses of which MDS is aware.

CONTINUED PARTICIPATION IN BLOOD PRODUCTS BUSINESS AND NEW PARTICIPATION IN LABS
BUSINESS

- -   Non-MDS Securityholders, by receiving New  Hemosol Shares, will continue  to
    participate  in the  Blood Products  Business through  New Hemosol's general
    partnership interest in  the Blood  Products Partnership and,  to a  limited
    extent,  through Labco's limited partnership  interest in the Blood Products
    Partnership. In addition, Non-MDS Securityholders, by receiving Labco  Class
    A  Shares, will be able to participate  in the business and future growth of
    the Labs Business through Labco's  limited partnership interest in the  Labs
    Partnership,  other  than  the first  $16  million  of profits  of  the Labs
    Partnership  following   the   Arrangement   because   such   profits   will

                                        29


    be  used to retire the $16 million loan  made by MDS to the Labs Partnership
    to fund the cash infusion to the Blood Products Business.

APPLICABLE SECURITIES LAWS

- -   The Arrangement is  being carried  out in  compliance with  Rule 61-501  and
    Policy  Q-27 (subject to the exemption orders  obtained from the OSC and AMF
    relieving Hemosol from the requirement to have a formal valuation prepared).
    Among other matters, those provisions  require that the Arrangement must  be
    approved  by  a  majority  of  the  votes  cast  by  Minority  Shareholders.
    Compliance with Rule 61-501 and  Policy Q-27 (and any exemptions  therefrom)
    is  generally viewed  in Canada  as a  fair means  to ensure  procedural and
    substantive fairness to minority  shareholders with respect to  transactions
    such as the Arrangement.

- -   Upon  completion of the Arrangement, New Hemosol and Labco will be reporting
    issuers in  each of  the provinces  of  Canada. In  addition, both  the  New
    Hemosol  Shares and the  Labco Class A  Shares will be  registered under the
    U.S. Exchange Act. As a result, New  Hemosol and Labco will each be  subject
    to  the  continuous  disclosure  obligations of  Canadian  and  U.S. federal
    securities laws.

US HOLDERS

- -   The Arrangement will  likely be  treated as  a taxable  distribution of  New
    Hemosol  Shares by Labco  for U.S. federal income  tax purposes. This deemed
    distribution may  result in  US Holders  incurring U.S.  federal income  tax
    liability  (see "Income Tax Considerations  -- Certain United States Federal
    Income Tax Considerations"). In considering the fairness of the Arrangement,
    MDS and  MDS  Subco  considered  the fact  that  the  Arrangement  has  been
    structured  to minimize the portion of  such distribution that is taxable to
    US Holders.

     MDS and  MDS  Subco believe  that  the  foregoing factors  and  the  active
involvement and arm's length negotiation by the Independent Committee adequately
support  the belief of MDS  and MDS Subco as to  the substantive fairness of the
Arrangement to Non-MDS Securityholders. MDS's and  MDS Subco's belief as to  the
substantive fairness of the Arrangement to Non-MDS Securityholders was not based
upon  any of  the following, as  they did not  believe, given the  nature of the
transactions, that these factors were relevant in the circumstances: current  or
historical  market  prices of  the Hemosol  Shares,  the net  book value  of the
Hemosol Shares, the going concern or liquidation value of Hemosol, the  purchase
prices previously paid by MDS or affiliates for Hemosol Shares and the substance
of  the KPMG Fairness Opinion described  under "-- KPMG Fairness Opinion" above.
MDS is not aware of  any firm offer made by  any unaffiliated person during  the
past  two years for  any merger or  consolidation of Hemosol,  the sale or other
transfer of  all or  any  substantial part  of the  assets  of Hemosol,  or  any
purchase  of Hemosol's  securities that would  enable the  purchaser to exercise
control of Hemosol.

     The above factors are not intended to be exhaustive. In light of the number
and variety of factors, it was not  practicable for MDS and MDS Subco to  assign
relative  weights to the foregoing factors and accordingly relative weights were
not assigned.

DRAFT REPORT OF PRICEWATERHOUSECOOPERS LLP

     Management of  MDS retained  PwC to  provide financial  advisory  services,
including  tax and  valuation analysis related  to Hemosol, the  Tax Losses, the
5,000,000 Tranche A Warrants that were then exercisable, interests in the  Blood
Products  Business  and  the Labs  Business,  and to  perform  transactional due
diligence in connection with the Arrangement.

     PwC is the  world's largest  professional services  organization with  more
than  125,000 people in  142 countries. PwC's  Canadian business valuation group
was formed in  1970 and  has been actively  involved in  providing business  and
securities  valuation services since that time.  PwC has extensive experience in
completing and defending, when necessary, engagements involving the valuation of
companies  for  various  purposes,  including  transactions  subject  to  public
scrutiny,  fairness  opinions, the  sale or  purchase of  entities or  assets by
related parties,  assistance  in  resolving  shareholders'  disputes,  tax-based
corporate  reorganizations,  financial  reporting  and  merger  and  acquisition
activity.

     MDS retained PwC based  on its experience in  conducting due diligence  and
providing  valuations and tax advisory services  in transactions of this nature.
MDS and PwC entered into a formal engagement agreement on November 19, 2003,  as
amended on November 26, 2003. The terms of the engagement agreement provide that
PwC  is  to be  paid  fees for  its  services as  financial  advisor to  MDS. In
addition, PwC is to be reimbursed for administration

                                        30


expenses and other disbursements and to be indemnified by MDS. The fees  payable
to  PwC under its  engagement agreement are  not contingent in  whole or in part
upon the success of the Arrangement.

     At a meeting of senior management of  MDS on December 11, 2003, PwC  orally
set  out its  findings and valuation  estimates which  were then set  out in the
draft report prepared by PwC based on information and analysis as of December 4,
2003 and sent to MDS on January 12, 2004 (the "PwC Draft Report").

     THE PWC DRAFT REPORT IS BEING DISCLOSED FOR THE PURPOSES OF COMPLYING  WITH
THE  REQUIREMENTS OF RULE 13E-3  AND RELATED RULES UNDER  THE U.S. EXCHANGE ACT.
PWC ACCEPTS NO RESPONSIBILITY OR LIABILITY FOR  THE USE OF THE PWC DRAFT  REPORT
BY  THE SECURITYHOLDERS OF HEMOSOL, THE SHAREHOLDERS  OF MDS OR ANY OTHER PARTY.
THE PWC DRAFT REPORT WAS PREPARED FOR THE ASSISTANCE OF SENIOR MANAGEMENT OF MDS
PRIOR TO DETERMINATION OF THE FINAL TERMS OF THE ARRANGEMENT AND IS NOT INTENDED
TO BE, AND DOES NOT CONSTITUTE,  A RECOMMENDATION TO ANY NON-MDS  SECURITYHOLDER
AS  TO  HOW  SUCH  NON-MDS  SECURITYHOLDER  SHOULD  VOTE  WITH  RESPECT  TO  THE
ARRANGEMENT RESOLUTION. THE PWC DRAFT  REPORT IS FURTHER SUBJECT TO  SIGNIFICANT
RESTRICTIONS  AND QUALIFICATIONS, LIMITATIONS IN  SCOPE AND ASSUMPTIONS OUTLINED
THEREIN.

     THE PWC  DRAFT REPORT  IS NOT  A  FAIRNESS OPINION  OR A  FORMAL  VALUATION
PURSUANT  TO  SECURITIES  REGULATIONS AND  WAS  NOT  PRESENTED TO  THE  BOARD OF
DIRECTORS OF MDS. MOREOVER,  THE PWC DRAFT REPORT  DOES NOT CONSIDER OR  ADDRESS
THE  FAIRNESS OF THE ARRANGEMENT TO SECURITYHOLDERS OF HEMOSOL, THE SHAREHOLDERS
OF MDS OR ANY OTHER PARTY AND THE PWC DRAFT REPORT SHOULD NOT BE CONSIDERED  FOR
SUCH  PURPOSE. FURTHERMORE, THE PWC  DRAFT REPORT HAS NOT  BEEN UPDATED, NOR HAS
MDS REQUESTED PWC TO  UPDATE SUCH REPORT,  FOR ANY CHANGES IN  THE TERMS OF  THE
ARRANGEMENT,  NEW INFORMATION OR CHANGES IN  MARKET CONDITIONS SINCE DECEMBER 4,
2003. FOR  EXAMPLE, THE  PWC  DRAFT REPORT  DOES  NOT CONSIDER  THE  SURRENDERED
WARRANTS  AS THEY WERE NOT PART OF THE PROPOSED TRANSACTION AT THE TIME THAT PWC
PERFORMED ITS WORK  FOR MDS. AS  A RESULT, THE  INFORMATION SET OUT  IN THE  PWC
DRAFT REPORT MAY NOT BE RELEVANT TO THE ARRANGEMENT.

     The  full text  of the  PwC Draft Report,  which sets  out the assumptions,
matters  considered,  limitations,  restrictions  and  qualifications  and   the
findings  and valuation  estimates made by  PwC, is  filed as an  exhibit to the
Schedule 13E-3 filed by Hemosol, MDS and MDS Subco with the SEC pursuant to  the
requirements  of the  U.S. Exchange  Act. The  summary of  the PwC  Draft Report
contained herein is qualified in its entirety  by reference to the full text  of
the PwC Draft Report.

     To  prepare the PwC Draft Report,  PwC reviewed, considered and relied upon
documentation and  information  and  representations  provided  to  PwC  without
additional audit or verification, including the following:

     -  discussions with management of MDS and Hemosol;

     -  the Letter of Understanding;

     -  various  financial and other  information provided by  management of MDS
        and Hemosol;

     -  limited research of  the industry in  which Hemosol operates,  including
        market   statistics   of   comparable   public   companies   and  market
        transactions;

     -  MDS's Annual Information Form for the year ended October 31, 2002  dated
        January 31, 2003;

     -  unaudited  summary financial  information prepared by  management of MDS
        for the Labs  Business for  the fiscal years  of MDS  ended October  31,
        2001, 2002 and 2003 and pro forma summary financial information prepared
        by  management of MDS for  the Labs Business for  the fiscal year of MDS
        ending October 31, 2004;

     -  supporting financial documentation  and discussions  with management  of
        MDS  with respect to the allocation  of sector overheads and expenses to
        the Labs Business;

     -  Hemosol's Annual Information Form for  the year ended December 31,  2002
        dated May 27, 2003;

                                        31


     -  Hemosol's  audited 2002 annual  report and unaudited  interim report for
        the nine-month period ended September 30, 2003 and Hemosol's budget  for
        the fourth quarter of 2003;

     -  draft ProMetic MOU as at November 25, 2003; and

     -  research into general economic conditions and the general pharmaceutical
        and pharmaceutical contract manufacturing industry.

     In  addition to  the above documentation,  information and representations,
PwC has received  a written  letter of  representation from  MDS confirming  the
completeness and accuracy of the information provided to PwC by MDS.

     PwC   relied  upon  and   assumed  the  completeness,   accuracy  and  fair
presentation of all  financial and  other information,  data, advice,  opinions,
representations  and  other  material  obtained by  it  from  public  sources or
provided to  it by,  on behalf  of or  at the  request of  Hemosol or  MDS.  The
findings  by PwC in the PwC Draft Report are conditional upon such completeness,
accuracy and fair presentation.  PwC has assumed, among  other things, that  the
projections  and  budgets  provided  to  it by  management  of  Hemosol  and MDS
represent the best estimate of the most probable results for the Blood  Products
Business and the Labs Business for the periods presented therein.

     In connection with the documentation, information and representations noted
above,  PwC performed the  procedures outlined below which  formed the basis for
its conclusions in the PwC Draft  Report with respect to the various  components
of  the  Arrangement.  PwC performed  such  analyses,  investigations, research,
testing of assumptions and  considered such factors  as PwC deemed  appropriate,
and in furtherance thereof, PwC:

LABS BUSINESS

- -   held discussions with management of MDS and reviewed the Tax Ruling (but not
    including  the  supplemental ruling  dated February  5,  2004) to  obtain an
    understanding of the proposed transaction as at December 4, 2003;

- -   reviewed certain publicly  available and internal  financial statements  and
    other  financial and operating  data of MDS, as  described above, related to
    the Labs Business;

- -   analyzed certain historical  and pro forma  financial information and  other
    financial operating data prepared by the management of MDS;

- -   discussed  the past and  current operations and  financial condition and the
    prospects of the Labs Business with senior executives of MDS;

- -   performed limited research into the industry  and economy in which the  Labs
    Business operates;

- -   compared the financial performance of the Labs Business with that of certain
    somewhat comparable publicly-traded companies and their securities; and

- -   assessed  the  most  appropriate  valuation methodology  to  apply,  being a
    capitalization of EBITDA  of $45 million  using capitalization multiples  of
    10.5  to  11.5, based  upon the  due  diligence performed  by PwC  and PwC's
    judgment;

BLOOD PRODUCTS BUSINESS

- -   reviewed certain publicly  available and internal  financial statements  and
    other  financial and operating data of Hemosol related to the Blood Products
    Business and  Hemosol's  research  and development  pipeline,  as  described
    above;

- -   analyzed  the  historical  and  projected  financial  information  and other
    financial operating  data  of the  Blood  Products Business,  in  each  case
    prepared by the management of Hemosol;

- -   engaged  an  independent  life  sciences  industry  expert  to  assist  with
    discussions and review of documentation related to Hemosol's products  under
    development;

- -   discussed  the past and  current operations and  financial condition and the
    prospects of Hemosol and the Blood Products Business with senior  executives
    of Hemosol and MDS;

- -   performed  limited research into  the industry and  economy in which Hemosol
    and the Blood Products Business operates and/or expects to operate;

- -   reviewed the reported prices and trading activity for the Hemosol Shares;

                                        32


- -   compared the financial performance of the Blood Products Business with  that
    of   certain  somewhat   comparable  publicly-traded   companies  and  their
    securities;

- -   assessed the most appropriate  valuation methodology to  apply to the  Blood
    Products  Business,  being  a  discounted cash  flow  of  the  business case
    presented by the management of Hemosol, as adjusted by PwC, using a discount
    rate of  25%,  based upon  the  due diligence  performed  by PwC  and  PwC's
    judgment;

- -   considered  alternative valuation methods for Hemosol and the Blood Products
    Business, including a discounted cash  flow analysis of the unadjusted  cash
    flows  prepared by Hemosol's management and an orderly liquidation analysis;
    and

- -   considered the value  of assets  redundant to  the operations  of the  Blood
    Products Business;

TAX LOSSES

- -   reviewed certain financial data of Hemosol related to the Tax Losses such as
    tax  returns,  notices  of  assessment  and  filings  related  to scientific
    research and experimental development claims;

- -   analyzed and reviewed the financial model prepared by management of MDS  for
    the calculation of the net present value of the Tax Losses;

- -   discussed  the nature and amount of the Tax Losses with senior executives of
    Hemosol and MDS;

- -   performed limited research into  publicly disclosed transactions related  to
    tax losses; and

- -   calculated a range of possible values for the Hemosol Tax Losses and the net
    present  value to  MDS based on  a discount  rate of 9%  using the financial
    model prepared by management of MDS  for the calculation of the net  present
    value of the Tax Losses and various assumptions;

5,000,000 TRANCHE A WARRANTS

- -   reviewed documentation setting out the terms of the Tranche A Warrants;

- -   reviewed reported volatility of the share trading price of Hemosol;

- -   obtained the reported price for Hemosol Shares on December 4, 2003; and

- -   employed a Black-Scholes option pricing model to value the 5,000,000 Tranche
    A  Warrants then exercisable including the use of volatility in the range of
    85% to 110%, and a risk-free rate of 3.81%.

     In addition  to  the foregoing,  PwC  performed such  additional  analysis,
investigations,  research,  testing of  assumptions  and considerations  that it
considered necessary or appropriate.

     PwC's findings and valuation estimates, as discussed with senior management
of MDS, are subject to  the various assumptions, limitations and  qualifications
set  out in  the PwC  Draft Report, which  PwC deemed  to be  appropriate in the
circumstances. Based upon the scope and  basis of PwC's review, each  summarized
above,  and  the  significant  assumptions  made  by  PwC  and  subject  to  the
restrictions and qualifications set out in  the PwC Draft Report, PwC  estimated
the value of various components of the Arrangement as at December 4, 2003. These
estimates were summarized in the PwC Draft Report as follows:

     -  the estimated fair market value of the Labs Partnership was in the range
        of $472.5 million to $517.5 million;

     -  the estimated fair market value of a 10% ownership interest in the Blood
        Products  Partnership was in the range  of $1.9 million to $4.0 million;
        and

     -  the estimated fair market value of the 5,000,000 Tranche A Warrants then
        exercisable was in the range of $5.4 million to $6.1 million.

     In addition, the PwC Draft Report presented PwC's findings with respect  to
its  review  of MDS's  analysis  used to  assess the  value  of the  Tax Losses,
providing a calculation of the possible range  of net present values to MDS  for
the  use of  the Tax Losses,  based upon varying  amounts that might  be paid to
Hemosol. PwC calculated that the range of appropriate payment amounts to Hemosol
of $10.2 million ($0.05 per dollar of  Tax Losses) to $22.4 million ($0.085  per
dollar  of Tax Losses) resulted  in a net present value  benefit to MDS of $74.0
million to $62.3 million,  respectively. Based upon  its analysis, PwC  selected
suggested  values for  the Tax  Losses in  the range  of $11.9  million to $17.2
million.

                                        33


                                THE ARRANGEMENT

     The  following description of the transactions occurring in connection with
the Arrangement is a summary only and is qualified in its entirety by  reference
to  the full text of  the Arrangement Agreement, a copy  of which is attached to
this Circular as Annex D, and the Plan of Arrangement, which details all of  the
steps  in the  Arrangement, a  copy of  which is  attached as  Exhibit 1  to the
Arrangement Agreement, each of which should be read carefully in its entirety.

     Hemosol and MDS have entered into the Arrangement Agreement which  provides
for  the implementation of the Arrangement pursuant  to section 182 of the OBCA.
Section 182 of the OBCA permits a  corporation to propose a plan of  arrangement
to  implement a reorganization  involving the business of  the corporation or of
any or all  of the  holders of its  securities or  of any options  or rights  to
acquire  any of its securities. Hemosol is  proposing the Plan of Arrangement as
an efficient  method  of implementing  the  reorganization contemplated  by  the
Arrangement  Agreement. The OBCA sets forth the process that Hemosol must follow
in implementing the Arrangement. In accordance with the process set forth in the
OBCA, Hemosol applied for, and obtained on  March 9, 2004, the Interim Order  of
the  Court which specifies the notice to be given in connection with the Meeting
to consider the Arrangement.

     The  Meeting  will  be   held  on  April  20,   2004  at  which  time   the
Securityholders  will  vote on  the Arrangement  Resolution. If  the Arrangement
Resolution is passed by the requisite  vote of the Securityholders and  Minority
Shareholders,  Hemosol will apply to the Court for the Final Order approving the
Arrangement. Such application has been scheduled to be heard on April 22,  2004.
The  Court, in hearing the application for the Final Order, will consider, among
other things, the fairness and reasonableness  of the Arrangement. If the  Court
approves  the Arrangement, either  as proposed or  as amended in  any manner the
Court may direct, and provided that all of the conditions to the Arrangement set
forth in the Arrangement Agreement have  been satisfied or waived, Hemosol  will
file  Articles of Arrangement under the  OBCA and the Certificate of Arrangement
will be issued under the OBCA giving effect to the Arrangement. Hemosol  expects
to  file the Articles of Arrangement as soon as reasonably practicable following
the grant of  the Final Order  and expects that  the Certificate of  Arrangement
will  be issued the  same day, which date  will be the  Effective Date. See "The
Arrangement --  Securityholder  Approvals"  and  "--  Court  Approval"  in  this
Circular.

PRE-ARRANGEMENT ORGANIZATIONAL STRUCTURE

     The   following  diagram  sets  out  the  corporate  structure  of  Hemosol
immediately prior to the  Effective Time (assuming  that MDS's shareholdings  of
Hemosol  immediately prior  to the  Effective Time are  the same  as its current
shareholdings).

               (PRE-ARRANGEMENT ORGANIZATIONAL STRUCTURE DIAGRAM)

TRANSACTION STEPS OUTSIDE THE PLAN OF ARRANGEMENT

     In order to implement the  Arrangement, certain transactions have been,  or
on or prior to the Effective Date will be, undertaken by Hemosol and MDS.

                                        34


HEMOSOL

     On or prior to the Effective Date, Hemosol will undertake certain steps and
enter into certain agreements, including the following:

     (a)  obtain from the Bank  a release of  all registered security  interests
          against Hemosol and its assets effective the Effective Time;

     (b)  lend  $6,000  to  New  Hemosol  to enable  it  to  purchase  a general
          partnership interest in the Blood Products Partnership;

     (c)  form the  Blood  Products  Partnership  by  entering  into  the  Blood
          Products Partnership Agreement with New Hemosol;

     (d)  enter into the Blood Products Contribution Agreement;

     (e)  cause  the Blood Products Partnership to enter into the Blood Products
          Security Agreements and to grant the security interests in respect  of
          all of its assets to the Bank in respect of the Bank Loan;

     (f)  cause New Hemosol to enter into the Escrow Agreement; and

     (g)  enter into the Partnership Interest Transfer Agreement.

MDS

     On  January 1,  2004, MDS transferred  all employees  and medical directors
that are employed by MDS solely in the Labs Business to MDS Subco.

     On or prior  to the Effective  Date, MDS will  undertake certain steps  and
enter into certain agreements, including the following:

     (a)  lend   MDS  Subco  $50,000  to  enable  it  to  purchase  its  general
          partnership interest in the Labs Partnership;

     (b)  form the  Labs  Partnership  by entering  into  the  Labs  Partnership
          Agreement with MDS Subco;

     (c)  enter into the Labs Contribution Agreement with the Labs Partnership;

     (d)  lend   $16  million  to  the  Labs  Partnership  and  cause  the  Labs
          Partnership to lend $16 million to Labco;

     (e)  lend $10  million to  the  Labs Partnership  to meet  initial  working
          capital requirements of the Labs Business;

     (f)  enter into the Partnership Interest Transfer Agreement; and

     (g)  subject  to the release  of MDS by  the Bank under  the MDS Guarantee,
          enter into the BPP Guarantee.

TRANSACTION STEPS UNDER THE PLAN OF ARRANGEMENT

     Pursuant to the terms  of the Plan of  Arrangement, at the Effective  Time,
the following events will occur in the following order:

     (a)  MDS  Subco will  contribute $50,000  to the  Labs Partnership  for its
          0.01% general partnership interest in the Labs Partnership pursuant to
          the terms of the Labs Partnership Agreement;

     (b)  in accordance with the terms  of the Labs Contribution Agreement,  MDS
          will  contribute the Labs Assets to  the Labs Partnership and the Labs
          Partnership will  issue  the  Labs  Partnership  Interest  to  MDS  in
          consideration therefor;

     (c)  New  Hemosol will contribute $6,000  to the Blood Products Partnership
          and the Blood Products  Partnership will issue  one Blood Products  LP
          Unit to New Hemosol in consideration therefor;

     (d)  in  accordance with the Blood Products Contribution Agreement, Hemosol
          will contribute  the  Blood  Products Assets  to  the  Blood  Products
          Partnership   and,  in  consideration  therefor,  the  Blood  Products
          Partnership will assume the Blood Products Liabilities and issue 9,999
          Blood Products LP Units to Labco; following the transfer by Hemosol of
          the Blood Products Assets to  the Blood Products Partnership,  Hemosol
          is referred to as Labco;

     (e)  all  Hemosol Options will be cancelled and: (i) all holders of Hemosol
          Options who have consented to  the treatment of their Hemosol  Options
          as  contemplated in this clause (i)  will receive in exchange for each
                                        35


          of such cancelled Hemosol Options that are Specified Hemosol  Options,
          one  New Hemosol Option  with vesting and  exercise terms identical to
          such cancelled Specified Hemosol Options, but having an exercise price
          equal to  the  exercise  price of  such  cancelled  Specified  Hemosol
          Options less $0.04 and will receive no New Hemosol Options in exchange
          for  their cancelled  Hemosol Options  that are  not Specified Hemosol
          Options; and  (ii)  all  holders  of  Hemosol  Options  who  have  not
          consented to the treatment of their Hemosol Options as contemplated in
          the preceding clause (i) and all holders of Hemosol Options who do not
          hold  any Specified Options will receive  in exchange for each of such
          cancelled Hemosol  Options  (excluding  Specified  Options),  one  New
          Hemosol  Option  with vesting  and  exercise terms  identical  to such
          cancelled Hemosol Option, but  having an exercise  price equal to  the
          exercise price of such cancelled Hemosol Option less $0.04;

     (f)  the  articles of  Labco will  be amended  to create  and authorize the
          issuance of an  unlimited number  of Labco  Class A  Shares and  Labco
          Class  B Non-Voting  Shares and  that number  of Labco  Class C Shares
          equal  to  the  number  of  issued  and  outstanding  Hemosol   Shares
          immediately  prior  to  the Effective  Time  in each  case  having the
          rights, privileges, restrictions and conditions set forth in the Labco
          Share Conditions;

     (g)  the one New  Hemosol Share held  by Hemosol immediately  prior to  the
          Effective  Time will be purchased for cancellation by New Hemosol from
          Labco in consideration for a cash payment of $1.00;

     (h)  each holder of Hemosol  Shares will be deemed  to have exchanged  each
          issued  and outstanding Hemosol Share for  one Labco Class A Share and
          one Labco Class C Share and each such Hemosol Share will be  cancelled
          such  that, upon  the completion of  the foregoing,  no Hemosol Shares
          will be outstanding;

     (i)   the amount to be added to  the stated capital account maintained  for
           the  Labco Class C Shares in respect of each Labco Class C Share will
           be equal to the Class C Redemption Amount (as defined in "Labco After
           the Arrangement" below);

     (j)   the amount to be added to  the stated capital account maintained  for
           the  Labco Class A Shares  will be equal to  the fair market value of
           the  Hemosol  Shares   immediately  prior  to   the  Effective   Time
           (determined  in accordance with the  Plan of Arrangement) and subject
           to any reduction required by subsection  86(2.1) of the Tax Act  less
           the aggregate Class C Redemption Amount;

     (k)  the stated capital account maintained in respect of the Hemosol Shares
          will be decreased to zero;

     (l)   each  holder  of  Labco  Class  C  Shares  will  be  deemed  to  have
           transferred each issued and  outstanding Labco Class  C Share to  New
           Hemosol  in exchange for  one New Hemosol  Share such that, following
           such transfer, all of the issued and outstanding Labco Class C Shares
           will be held by New Hemosol;

     (m) the Tranche A Warrants  will be amended,  in partial consideration  for
         the  issuance  of Labco  Class A  Shares and  Labco Class  B Non-Voting
         Shares as provided in  paragraph (q), so that  the aggregate number  of
         Hemosol  Shares to which MDS is  entitled thereunder will be reduced by
         500,000 with such  reduction to be  effected by reducing  by 50%  MDS's
         entitlement  to acquire Hemosol Shares which entitlement has vested (or
         will vest) on February 22, 2004, March 22, 2004 and April 22, 2004;

     (n)  New Hemosol will assume the  obligations of Hemosol under the  Hemosol
          Convertible  Securities as if such Hemosol Convertible Securities were
          a right to acquire New Hemosol  Shares (other than a reduction of  the
          exercise  price  of each  Hemosol Convertible  Security by  $0.04) and
          Labco will redeem all issued and outstanding Labco Class C Shares held
          by New Hemosol for a redemption price per Labco Class C Share equal to
          the Class C Redemption Amount  which consideration for the  assumption
          and  the redemption price will  be paid by Labco  by a transfer to New
          Hemosol of 9,112 Blood Products LP  Units and the cash payment of  $16
          million;

     (o)  the MDS MOU will be terminated and New Hemosol and MDS will enter into
          the New Hemosol MOU in partial consideration for the issuance by Labco
          to  MDS of Labco Class A Shares and Labco Class B Non-Voting Shares as
          provided in paragraph (q);

     (p)  New Hemosol  will subscribe  for 2,500  additional Blood  Products  LP
          Units  in consideration for  a subscription price  of $15 million such
          that following such  subscription New Hemosol  will hold 11,613  Blood
          Products LP Units and Labco will hold 887 Blood Products LP Units;

                                        36


     (q)  Labco  will issue to MDS the MDS Additional Class A Shares and the MDS
          Class B Non-Voting  Shares in consideration  for the Labs  Partnership
          Interest  transferred from  MDS in  accordance with  the terms  of the
          Partnership Interest  Transfer  Agreement  and the  surrender  of  the
          Surrendered Warrants;

     (r)  the  amount to  be added to  the stated capital  account maintained by
          Labco for the Labco  Class A Shares and  the Labco Class B  Non-Voting
          Shares  in respect of the shares issued in paragraph (q) will be equal
          to the value of  the consideration received for  the issuance of  such
          shares  less the deduction  required by subsection  85(2.1) of the Tax
          Act;

     (s)  the articles of  Labco will  be amended to  (i) change  its name  from
          Hemosol  Inc. to  LPBP Inc.,  (ii) delete  the provisions  relating to
          registered office, number of  directors, authorized share capital  and
          share  conditions of the Hemosol Shares and the Hemosol Special Shares
          and (iii) add  the provisions set  out in  Appendix A to  the Plan  of
          Arrangement;

     (t)  the  Labco Board will consist of  four members, initially being Edward
          E. McCormack,  Edward K.  Rygiel, Wilfred  G. Lewitt  and Mitchell  J.
          Kostuch; and

     (u)  the year-end of Labco will be October 31.

     See the Arrangement Agreement and Plan of Arrangement reproduced in Annex D
to this Circular.

POST-ARRANGEMENT ORGANIZATIONAL STRUCTURE

     The  following diagram sets out the  corporate structure of Hemosol and New
Hemosol  immediately  following   the  Effective  Time   (assuming  that   MDS's
shareholdings of Hemosol immediately prior to the Effective Time are the same as
its current shareholdings).

              (POST-ARRANGEMENT ORGANIZATIONAL STRUCTURE DIAGRAM)
- ---------------

Notes:

(1)  While  Public  Shareholders will  hold 0.44%  of Labco's  equity securities
     through their  holdings of  Labco Class  A Shares,  such shares  will  have
     attached  thereto not less than 52.5% of  the votes attaching to all voting
     shares of Labco.

(2)  While MDS  will  hold  99.56%  of Labco's  equity  securities  through  its
     holdings  of Labco Class A Shares and Labco Class B Non-Voting Shares, such
     shares will  have  attached  thereto  not more  than  47.5%  of  the  votes
     attaching to all voting shares of Labco.

                                        37


TREATMENT OF HEMOSOL CONVERTIBLE SECURITIES IN CONNECTION WITH THE ARRANGEMENT

     As  at  March  10,  2004, Hemosol  had  the  following  Hemosol Convertible
Securities outstanding:

     (a)  60,000 warrants issued to  National Bank of Canada  on April 22,  2002
          entitling National Bank of Canada to purchase 60,000 Hemosol Shares at
          an  exercise price of $6.31 per Hemosol Share at any time before April
          22, 2007;

     (b)  45,000 warrants issued to  The Bank of Nova  Scotia on April 22,  2002
          entitling The Bank of Nova Scotia to purchase 45,000 Hemosol Shares at
          an  exercise price of $6.31 per Hemosol Share at any time before April
          22, 2007;

     (c)  400,000 warrants issued to The Manufacturers Life Insurance Company on
          December 14, 2000 entitling  The Manufacturers Life Insurance  Company
          to  purchase 400,000 Hemosol Shares at an exercise price of $18.00 per
          Hemosol Share at any time before December 14, 2005;

     (d)  the Tranche A Warrants;

     (e)  3,720,891 Hemosol Warrants  issued to  a number  of warrantholders  on
          January  22, 2004. Each Hemosol Warrant entitles the holder thereof to
          acquire one Hemosol Share at a price of $0.90 per Hemosol Share at any
          time prior to the earlier to occur of: (i) November 28, 2006; and (ii)
          the 30th day immediately following the date on which Hemosol  notifies
          the warrantholders that the volume-weighted average price of a Hemosol
          Share  on the TSX for  20 consecutive trading days  is greater than or
          equal to $2.25; and

     (f)  392,090 Broker  Options,  of  which 294,068  were  issued  to  Loewen,
          Ondaatje, McCutcheon Limited and 98,022 were issued to Vengate Capital
          Partners  Company. Each Broker  Option entitles the  holder thereof to
          purchase one Hemosol Share  and one-half of one  Hemosol Warrant at  a
          price  of $0.75 exercisable at any time  prior to the earlier to occur
          of: (i) November 28, 2006; and (ii) the 30th day immediately following
          the date on which Hemosol  notifies the Broker Optionholders that  the
          volume-weighted  average price  of a Hemosol  Share on the  TSX for 20
          consecutive trading days is greater than or equal to $2.25.

     As part of the Arrangement, Hemosol Convertible Securities will become  New
Hemosol  Convertible Securities  with the right  to purchase  New Hemosol Common
Shares on terms identical to the relevant Hemosol Convertible Securities,  other
than  a reduction  of the  exercise price by  $0.04. Such  reduction of exercise
price accounts for the fact that  holders of New Hemosol Convertible  Securities
will  not be entitled to  receive Labco Class A Shares  on exercise and has been
designed to maintain  economic equivalence  for holders  of Hemosol  Convertible
Securities.  The $0.04 reduction approximates the value of a Labco Class A Share
based on the range of indicative aggregate  values for the Labco Class A  Shares
to  be distributed to  Shareholders considered by  KPMG for the  purposes of the
KPMG Fairness Opinion (see "Special Factors -- KPMG Fairness Opinion -- Value of
Labco Class A Shares") and approximately 69.72 million Labco Class A Shares that
would be distributed (based on a fully diluted number of Hemosol Shares assuming
the exercise of  Hemosol Convertible Securities  and Hemosol Options  reasonably
considered to be in the money).

TREATMENT OF TRANCHE A WARRANTS AND TRANCHE B WARRANTS

     MDS currently holds the Tranche A Warrants and the right to acquire Tranche
B  Warrants under certain  circumstances, as described in  "Hemosol Prior to the
Arrangement --  Credit  Facility". Under  the  Arrangement, MDS  will  surrender
500,000  Tranche  A  Warrants  and  its right  to  acquire  2,000,000  Tranche B
Warrants.

Tranche A Warrants

     The Plan  of Arrangement  provides  that the  Tranche  A Warrants  will  be
amended  such  that the  aggregate  number of  Hemosol  Shares to  which  MDS is
entitled thereunder will be reduced by 500,000,  as a result of which MDS  would
be  entitled  to acquire  upon the  exercise of  the Tranche  A Warrants,  up to
5,500,000 Hemosol Shares. The reduction of the number of Hemosol Shares to which
MDS is entitled on the  exercise of the Tranche A  Warrants will be effected  by
reducing  by 50% MDS's  entitlement to acquire  Hemosol Shares which entitlement
has vested or will  vest, as the case  may be, on February  22, 2004, March  22,
2004 and April 22, 2004. The Tranche A Warrants will then be treated in the same
way  as all  Hemosol Convertible  Securities, as  described in  "-- Treatment of
Hemosol Convertible Securities" below.  As a result,  after the Effective  Date,
MDS  will hold warrants of  New Hemosol that entitle MDS  to acquire, on the due
exercise   thereof,   up   to   5,500,000   New   Hemosol   Shares,   on   terms

                                        38


and  conditions identical to the terms and  conditions of the Tranche A Warrants
with the exception  of the exercise  price which  will be reduced  by $0.04  per
Tranche A Warrant.

Tranche B Warrants

     The  Plan of Arrangement provides  that on the Effective  Date the MDS MOU,
which sets out  the terms  and conditions  of the  Tranche B  Warrants, will  be
terminated  and New Hemosol and MDS will enter into the New Hemosol MOU. The New
Hemosol MOU  will set  out the  terms  and conditions  of the  right of  MDS  to
acquire,  in certain  circumstances, up  to 2,000,000  warrants to  purchase New
Hemosol Shares, on the  same terms as  the Tranche B  Warrants, except that  the
number  of warrants vesting each  month will be reduced  by 50% and the exercise
price will be reduced by $0.04 per Tranche B Warrant.

TREATMENT OF HEMOSOL CONVERTIBLE SECURITIES

     Under the Plan of Arrangement, New  Hemosol will assume the obligations  of
Hemosol  under the Hemosol Convertible Securities as if such Hemosol Convertible
Securities provided  a  right  to  acquire New  Hemosol  Shares  (other  than  a
reduction of the exercise price of each relevant Hemosol Convertible Security by
$0.04).  The reduction of the exercise price  accounts for the fact that the New
Hemosol Convertible Securities will only be exercisable into New Hemosol  Shares
(and  warrants of New Hemosol to purchase New Hemosol Shares, in the case of the
Broker Options) and  not, in addition  thereto, into Labco  Class A Shares  (and
warrants  of Labco to purchase  Labco Class A Shares, in  the case of the Broker
Options).

     As a result, on the  Effective Date, Hemosol Convertible Securities  (other
than Broker Options) will become New Hemosol Convertible Securities that will be
exercisable  into  New  Hemosol Shares  and  will  have identical  terms  to the
relevant current Hemosol Convertible Securities,  except for a reduction of  the
exercise price by $0.04. Similarly, Broker Options will become broker options of
New Hemosol that will be exercisable into New Hemosol Shares and warrants of New
Hemosol to purchase New Hemosol Shares, on identical terms to the current Broker
Options,  except for  a reduction  of the  exercise price  by $0.04  of (i) such
broker options  and  (ii) the  warrant  to purchase  New  Hemosol Shares  to  be
received upon the exercise of such broker options.

TREATMENT OF HEMOSOL OPTIONS IN CONNECTION WITH THE ARRANGEMENT

     Under  the Plan of  Arrangement, all Hemosol Options  will be cancelled and
replaced with New Hemosol Options with  vesting and exercise terms identical  to
those  of the cancelled Hemosol  Options, but having an  exercise price equal to
the exercise price  of such cancelled  Hemosol Options less  $0.04, except  that
holders of Hemosol Options that so consent will only receive New Hemosol Options
in  respect of cancelled Hemosol Options  that are Specified Hemosol Options and
will not receive any New Hemosol Options in respect of cancelled Hemosol Options
that are not Specified Hemosol Options.

     The  Specified   Hemosol  Options   include  Hemosol   Options  that   were
conditionally  granted in 2003 to ensure the retention of key personnel in light
of Hemosol's financial resources and the challenges that it faced.  Shareholders
are  being asked to ratify the grant  of such conditional Hemosol Options at the
Meeting. See  "Annual Meeting  and  Other Special  Business --  Ratification  of
Conditional Grants of Options".

MUTUAL CONDITIONS

     The   obligations  of  Hemosol   and  MDS  to   complete  the  transactions
contemplated  in  the  Arrangement  Agreement  are  subject  to  certain  mutual
conditions, including the following:

     (a)  the Interim Order has been granted;

     (b)  any  conditions which  may be imposed  by the Interim  Order have been
          satisfied;

     (c)  the Arrangement Resolution has been approved by the Securityholders at
          the Meeting as described under "-- Securityholder Approvals" below, in
          accordance with the Interim Order;

     (d)  the Final  Order  has  been  granted, as  described  under  "--  Court
          Approval" below;

     (e)  all  consents and approvals of  governmental entities required for the
          completion of  the  transactions contemplated  under  the  Arrangement
          Agreement have been obtained (including approval from the TSX, NASDAQ,
          the Department of National Defence and the MOH); and

     (f)  the consent of the Bank has been obtained.

                                        39


CONDITIONS IN FAVOUR OF HEMOSOL

     In  addition to the  mutual conditions summarized  above, the obligation of
Hemosol to complete the transactions  contemplated in the Arrangement  Agreement
is subject to certain customary and other conditions, including the following:

     (a)  subject to the release by the Bank of MDS under the MDS Guarantee, MDS
          will have entered into the BPP Guarantee; and

     (b)  there  will not have occurred, developed or arisen or come into effect
          or  existence  any  condition,  event  or  development  which  in  the
          reasonable judgment of Hemosol has, or is reasonably likely to have, a
          Material  Adverse Effect (as  that term is  defined in the Arrangement
          Agreement) on the Labs Business.

CONDITIONS IN FAVOUR OF MDS

     In addition to the  mutual conditions summarized  above, the obligation  of
MDS  to complete the  transactions contemplated in  the Arrangement Agreement is
subject to certain customary and other conditions, including the following:

     (a)  there will not have occurred, developed or arisen or come into  effect
          or  existence  any  condition,  event  or  development  which  in  the
          reasonable judgment of  MDS has, or  is reasonably likely  to have,  a
          Material  Adverse Effect (as  that term is  defined in the Arrangement
          Agreement) on Hemosol;

     (b)  there will not  be any change  in the Plan  of Arrangement that  would
          result in any Hemosol Convertible Securities and Hemosol Options being
          issued and outstanding upon completion of the Arrangement;

     (c)  there  will  not be  any change,  condition,  event or  development in
          respect of Hemosol or the Blood Products Business that would result in
          any material impairment in, or materially adversely affect the ability
          of Labco  to utilize,  the  Tax Losses  after  the Effective  Time  as
          contemplated in the Tax Ruling;

     (d)  MDS will have obtained any amendments or supplements to the Tax Ruling
          deemed  necessary by  its counsel  or financial  advisors in  order to
          implement the Plan of Arrangement and the Arrangement Agreement and to
          allow Labco to  utilize the Tax  Losses after the  Effective Time,  as
          contemplated in the Tax Ruling; and

     (e)  there  will not have been enacted, promulgated or announced any change
          or proposed change in law or interpretative guidance or policy of  any
          taxation  authority  that,  in MDS's  view,  acting  reasonably, could
          result in any  material impairment in  or materially adversely  affect
          the Tax Ruling or the ability of Labco to utilize the Tax Losses after
          the  Effective Time as contemplated  in the Tax Ruling  or result in a
          material adverse change in  the tax treatment on  any dividends to  be
          received  by  MDS  as  a  shareholder  of  Labco  or  otherwise reduce
          (otherwise than as a consequence of a general reduction in income  tax
          rates) the benefit to Labco or MDS of Labco utilizing the Tax Losses.

NON-SOLICITATION

     In  the  Arrangement Agreement,  Hemosol has  agreed that  it will  not (i)
solicit, initiate or encourage any inquiries or proposals regarding any  merger,
amalgamation,  arrangement, restructuring,  take-over bid,  sale or  purchase of
substantial assets (including, without  limitation, tax carryforward  balances),
sale  or  purchase  of  securities  (other  than  certain  exceptions), business
combinations, reorganizations or  recapitalizations (an "Acquisition  Proposal")
or  (ii) participate in any discussions or negotiations regarding, or furnish to
any person any information with respect to any of the foregoing.

     Hemosol may  respond  to  an  unsolicited  bona  fide  written  Acquisition
Proposal  which the  Hemosol Board  determines in good  faith and  in the proper
discharge of its fiduciary duties would,  if consummated in accordance with  its
terms,  result  in a  transaction that  is more  favourable to  the Shareholders
generally (without taking into account any benefits that MDS and its  affiliates
may receive under the Arrangement) than the Arrangement (a "Superior Proposal").

TERMINATION AND EXPENSE REIMBURSEMENT

     The  Arrangement  Agreement may  be  terminated at  any  time prior  to the
Effective Date by mutual  written consent of Hemosol  and MDS. In addition,  the
Arrangement may be terminated at any time prior to the Effective Date by Hemosol
or  MDS  if (i)  the  Securityholders do  not  vote to  approve  the Arrangement
Resolution at the
                                        40


Meeting or (ii) the  Arrangement is illegal or  if any final and  non-appealable
judgment,  injunction, order  or decree  of a  court or  regulatory authority is
issued that prohibits MDS or Hemosol from proceeding with the Arrangement.

     The Arrangement Agreement may also be terminated by:

     (a)  MDS as a result of a breach  by Hemosol of any of its  representations
          or  warranties or covenants  under the Arrangement  Agreement and such
          breach is not cured within three days after notice;

     (b)  MDS if  (i) the  Hemosol Board  has modified  or amended  in a  manner
          adverse   to   MDS   or   withdrawn   its   recommendation   that  the
          Securityholders approve the  Arrangement, (ii) the  Hemosol Board  has
          approved  or recommended any  Superior Proposal, or  (iii) Hemosol has
          entered into a binding agreement with respect to a Superior Proposal;

     (c)  Hemosol  upon   its  determination   that  an   Acquisition   Proposal
          constitutes a Superior Proposal; or

     (d)  Hemosol or MDS if the Effective Date does not occur on or prior to the
          Outside  Date, provided that certain conditions to closing relating to
          actions to be taken by Hemosol have not been fulfilled,

in which case Hemosol will pay to MDS  an amount equal to $1 million in  respect
of  expenses  incurred  by  MDS  in  connection  with  matters  related  to  the
Arrangement Agreement.

     The Arrangement Agreement may also be terminated by:

     (a)  Hemosol as a result of a breach by MDS of any of its  representations,
          warranties  or  covenants  under the  Arrangement  Agreement  and such
          breach is not cured within three days after notice;

     (b)  Hemosol or MDS if the Effective Date does not occur on or prior to the
          Outside Date, provided that certain conditions to closing relating  to
          actions to be taken by MDS have not been fulfilled; or

     (c)  MDS if CCRA has refused to issue an amendment or supplement to the Tax
          Ruling  deemed necessary by its counsel or financial advisors in order
          to implement the  Arrangement and to  allow Labco to  utilize the  Tax
          Losses  after the Effective Date as contemplated in the Tax Ruling, or
          there is  a  change in  tax  law that  could  result in  any  material
          impairment  in or  materially adversely affect  the Tax  Ruling or the
          ability of Labco to utilize the Tax Losses after the Effective Date as
          contemplated in the Tax Ruling,

in which case MDS will pay to Hemosol an amount equal to $0.5 million in respect
of expenses  incurred by  Hemosol  in connection  with  matters related  to  the
Arrangement Agreement.

OTHER TERMS OF THE ARRANGEMENT AGREEMENT

     In  addition  to  setting  out  certain  transactions  leading  up  to  the
Arrangement and the  Plan of  Arrangement and  the conditions  precedent to  its
completion,  as  described  in  this Circular,  the  Arrangement  Agreement also
contains customary  representations  and  warranties by  each  of  the  parties,
including  corporate,  legal  and  other matters  relating  to  their respective
affairs and to the Arrangement, and includes covenants by each of the parties to
do all such things as  may reasonably be required  to carry out the  Arrangement
and to use commercially reasonable efforts to fulfil the conditions precedent.

ESCROW AGREEMENT

     The Escrow Agreement will be entered into between New Hemosol, Labco and an
escrow  agent (the "Escrow Agent"). Under the Escrow Agreement, at the Effective
Time, New  Hemosol will  deposit  the Escrow  Amount  in a  segregated  interest
bearing  account established  for such purpose  by the Escrow  Agent. The Escrow
Amount will be retained by the Escrow Agent until all indemnifiable claims  made
by  Labco under the Labco Indemnity Agreement  (each, a "Claim") within one year
following the  Effective  Date  (the  "Claim  Period")  have  been  resolved  by
agreement  between  Labco and  New Hemosol  or  have become  subject to  a final
non-appealable order of a court having jurisdiction over the matter in dispute.

     In the event of  any Claims by Labco  under the Labco Indemnity  Agreement,
Labco  will deliver a  notice (the "Claim  Notice") to the  Escrow Agent and New
Hemosol within 15 business  days of the expiry  of the Claim Period  identifying
all  Claims that have  arisen within the  Claim Period. Upon  receipt of a Claim
Notice, the Escrow Agent will pay out to Labco the full amount of all Claims  on
the  20th business day following receipt of the Claim Notice, unless New Hemosol
objects in writing within such 20-business day period. If New Hemosol objects to
any Claim, the Escrow  Agent will not  release the funds  in the escrow  account
until it has received either a joint direction of

                                        41


New  Hemosol and Labco to release the applicable funds or a final non-appealable
order of a court having jurisdiction over the matter in dispute.

     On the expiry  of the 15-business  day period following  the Claim  Period,
provided  that  Labco has  either  not delivered  a  Claim Notice  or  Labco has
delivered a Claim Notice  and the Claims subject  to the Claim Losses  aggregate
less  than $1 million, the Escrow Agent will release to New Hemosol the funds in
the escrow account less an  amount equal to the  aggregate amount of all  Claims
identified  in  any Claim  Notice, together  with  accumulated interest  on such
aggregate amount. Any amount retained by the Escrow Agent will be dealt with  as
described above, and upon the final resolution of all Claims and all payments in
respect thereof, if any, have been made by the Escrow Agent to Labco, the Escrow
Agent will release the balance of the escrow account, if any, to New Hemosol.

INDEMNITY AGREEMENTS

     Under  the terms of the MDS Indemnity  Agreement, New Hemosol has agreed to
indemnify MDS against  certain losses that  MDS may incur  or suffer in  certain
circumstances,  including in the event that (i) the amount of the Tax Losses has
been overstated or an  acquisition of control of  Hemosol has occurred prior  to
the  Effective Time, (ii) there is a misrepresentation or omission of a material
fact in  connection with  submissions  regarding Hemosol  made  to CCRA  in  the
application  for the Tax Ruling, the  Tax Ruling or the Supplemental Submissions
or (iii) there are certain adverse tax related consequences of the  Arrangement.
The  ability of MDS to make claims  under the MDS Indemnity Agreement is subject
to certain limits on the amounts  of potential claims and the maximum  aggregate
liability  of New Hemosol under the MDS  Indemnity Agreement will not exceed $16
million.

     Under the  terms  of the  Labco  Indemnity Agreement,  the  Blood  Products
Partnership has agreed to indemnify Labco against losses that Labco may incur or
suffer  relating to an act  or omission of Hemosol  prior to the Effective Time,
including an act or omission in  connection with any clinical, pre-clinical  and
other  studies and tests  conducted by or  on behalf of  Hemosol or a Subsidiary
prior to the Effective  Time, the operation of  the Blood Products Business  and
the  care and maintenance of the Blood Products Assets after the Effective Time,
including failure  by  the  Blood  Products Partnership  to  satisfy  the  Blood
Products  Liabilities or  perform its obligations  under the  contracts to which
Hemosol was party immediately prior to  the Effective Time or any loss  relating
to  any non-assignable contracts of Hemosol. Labco  will not be entitled to make
any claim against the Blood Products Partnership unless the aggregate amount  of
losses  incurred by Labco  exceeds $50,000, in which  case such claim, including
the initial $50,000 amount, may be recovered by Labco. There is no limitation on
the amount that may be claimed by Labco under the Labco Indemnity Agreement.

SECURITYHOLDER APPROVALS

     For the Arrangement to be  implemented, the Arrangement Resolution must  be
passed, with or without variation, by:

     (a)  at  least two-thirds of  all the votes  cast by Securityholders voting
          together as a single class, in person or by proxy, at the Meeting; and

     (b)  a majority of all the votes  cast by Minority Shareholders voting,  in
          person  or by  proxy, at  the Meeting.  As discussed  in more detailed
          under the  heading "Regulatory  Matters  -- OSC  Rule 61-501  and  AMF
          Policy  Q-27", this reflects the  requirement for minority approval of
          the Arrangement as a "going private transaction" and a "related  party
          transaction"  under Rule 61-501  and Policy Q-27.  To the knowledge of
          Hemosol, for  purposes  of  the  minority  approval  requirement,  the
          Minority  Shareholders are  comprised of all  Shareholders except MDS,
          MDS Health Ventures (TC) Inc. and  two entities for which MDS  Capital
          Corp.  and/or  its affiliates  provide management  services who  as at
          March 10,  2004  held an  aggregate  of 7,362,143  Hemosol  Shares.  A
          breakdown  of the  Hemosol Shares  held by  MDS and  its affiliates is
          provided in the  section "General Proxy  Matters -- Voting  Securities
          and Principal Holders Thereof" of this Circular.

COURT APPROVAL

     The   Arrangement  requires  Court  approval  under  the  OBCA.  The  court
proceeding necessary to obtain that approval  was commenced on March 8, 2004  by
Notice  of Application in the  Ontario Superior Court of  Justice. The Notice of
Application is set forth in  Annex B to this Circular.  Prior to the mailing  of
this Circular, the Interim

                                        42


Order  was granted on March 9, 2004 providing for the calling and holding of the
Meeting and certain other procedural matters. A copy of the Interim Order is set
forth in Annex C to this Circular.

     The Interim  Order does  not  require that  dissent  rights be  granted  to
Securityholders and therefore, no such dissent rights have been granted.

     Following  approval  of  the  Arrangement by  the  Securityholders  and the
Minority Shareholders, an application  will be made to  the Court for the  Final
Order,  which application has been scheduled to  be heard at 10:00 a.m. (Toronto
time) on April 22, 2004 in the Court at 393 University Avenue, Toronto, Ontario.
The Court in hearing the motion for  the Final Order will consider, among  other
things,  the  fairness  and reasonableness  of  the Arrangement.  The  Court may
approve the Arrangement either as proposed or as amended in any manner the Court
may direct, subject to compliance with such terms and conditions, if any, as the
Court  thinks  fit.  At  the  hearing  in  respect  of  the  Final  Order,   any
Securityholder and any other interested party who wishes to participate or to be
represented  or to present evidence  or argument may do  so, subject to filing a
notice of appearance  as set  out in the  Notice of  Application and  satisfying
certain other requirements as set out in the Interim Order.

     The  Final  Order will  constitute a  basis for  an exemption  from certain
registration requirements  of  the  U.S.  Securities Act  with  respect  to  the
securities of New Hemosol and Labco issued pursuant to the Arrangement.

TORONTO STOCK EXCHANGE AND NASDAQ LISTINGS

     New  Hemosol has applied to  have the New Hemosol  Shares listed on the TSX
(symbol "HML"). It is a condition of the Arrangement becoming effective that the
New Hemosol Shares  be approved for  listing on  the TSX and  quoted on  NASDAQ,
respectively,  subject to normal  requirements of TSX  and NASDAQ, respectively.
The TSX has given conditional approval for the substitutional listing of the New
Hemosol Shares (and the Labco Class C Shares at the Effective Time) on the  TSX,
subject  to its normal  requirements. Upon completion of  the Arrangement, it is
expected that the New Hemosol Shares will be quoted on NASDAQ. New Hemosol  will
be  a  reporting  issuer  in  Canada and  a  registrant  in  the  U.S. following
completion of the Arrangement.

     Neither the Labco  Class A  Shares nor  the Labco  Class B  Shares will  be
listed  or  posted for  trading  on the  TSX or  any  other exchange  or market.
Following completion of the Arrangement, Labco  will continue to be a  reporting
issuer in Canada and a registrant in the U.S.

DISTRIBUTION OF SHARE CERTIFICATES

     On  and after the Effective  Time until the close  of business on the fifth
Trading Day  (as  defined  below) following  the  Effective  Date,  certificates
formerly  representing Hemosol Shares  will represent only  the right to receive
New Hemosol Shares and Labco Class A Shares in accordance with the  Arrangement.
Following the close of business on the fifth Trading Day following the Effective
Date, such certificates will cease to represent any claim or interest, including
a claim for dividends or other distributions, against Labco or New Hemosol.

     As  soon as practicable,  certificates representing New  Hemosol Shares and
Labco Class A Shares will be mailed to those Shareholders whose names appear  on
the  register of Shareholders at the close  of business on the fifth Trading Day
following the Effective Date.

     On and  after the  Effective Time,  (i) the  agreements providing  for  the
Hemosol Options will represent only the right to receive the New Hemosol Options
to  which the holders  thereof are entitled  under the Arrangement  and (ii) the
agreements providing for the Hemosol Convertible Securities will represent  only
the  right to  exercise into New  Hemosol Shares and/or  New Hemosol Convertible
Securities, as contemplated under the Arrangement.

     In this  section, "Trading  Day" means  a  day, other  than a  Saturday  or
Sunday, when the TSX and NASDAQ are open for trading.

ELIGIBILITY FOR INVESTMENT IN CANADA

     In  the opinion of DWPV, the Labco  Class A Shares received in exchange for
Hemosol Shares  will be  qualified  investments under  the  Tax Act  for  trusts
governed by a registered retirement savings plan, a registered retirement income
fund, a registered education savings plan and a deferred profit sharing plan and
the  New Hemosol  Shares issued  in exchange  for Labco  Class C  Shares will be
qualified investments for such trusts provided the New Hemosol Shares are listed
on a prescribed stock exchange in Canada.  Neither the Labco Class A Shares  nor
the  New Hemosol Shares would, if issued on the date hereof, be foreign property
for purposes of Part XI of the Tax Act.

                                        43


SOURCE OF FUNDS

     As part of the Arrangement, New Hemosol will receive from Labco $16 million
in cash proceeds as partial consideration for the redemption of the Labco  Class
C  Shares. Labco will borrow such funds from the Labs Partnership (pursuant to a
loan bearing interest at a commercial rate with a maturity date of May 31, 2005)
and the Labs Partnership will in turn borrow such funds from MDS (pursuant to  a
non-interest  bearing loan with a maturity date  of May 31, 2005). MDS will fund
that amount from its operating income.

EXPENSES OF THE ARRANGEMENT

     The total estimated expenses of the  Arrangement to be incurred by  Hemosol
and MDS are as follows:

<Table>
                                                               
    Accounting and advisory fees and expenses...................  $1.1 million
    Legal fees and expenses.....................................  $2.6 million
    Printing, mailing and proxy solicitation fees, meeting
      expenses, filing fees and transfer taxes..................  $0.7 million
</Table>

     All  fees and expenses in connection with the Arrangement Agreement and the
transactions contemplated  thereby, including  legal, financial  and  accounting
advisory  fees, will  be paid  by the  party incurring  such fees  and expenses.
However, if the  Arrangement is  completed, MDS  will reimburse  Hemosol or  New
Hemosol, as applicable, for 50% of the fees and expenses (including the fees and
expenses  of  legal advisors,  printing expenses  and  stock exchange  and other
regulatory fees)  incurred by  Hemosol or  New Hemosol  in connection  with  the
preparation  and mailing of the Circular,  the application for the Interim Order
and the Final Order,  the holding of  the Meeting, the  preparation for (to  the
extent that such preparation is after the date of the Arrangement Agreement) and
closing  of the transactions contemplated in  the Arrangement Agreement, up to a
maximum reimbursement of $300,000.

     Of  the   total  estimated   expenses   of  approximately   $4.4   million,
approximately  $2.2 million have  been or will  be incurred by  Hemosol and have
been or  will  be  borne by  Hemosol,  New  Hemosol and/or  the  Blood  Products
Partnership,  without taking  into account any  expense reimbursement  by MDS as
described above.

ACCOUNTING TREATMENT OF THE ARRANGEMENT

     As the successor of Hemosol, New Hemosol will consolidate the balance sheet
and  operating  results  of  the  Blood  Products  Partnership  using  Hemosol's
historical  accounting basis.  All assets and  liabilities of  Hemosol will flow
through to  New Hemosol  under Hemosol's  existing accounting  policies. The  7%
interest  in the Blood Products Partnership  retained by Labco will be accounted
for as a minority interest  in New Hemosol. The  $16 million cash proceeds  that
New Hemosol will receive pursuant to the Arrangement, as well as 0.44% of Labco,
will  be  accounted  for as  a  gain in  the  accounts  of New  Hemosol,  net of
transaction costs  and  the value  of  the 7%  interest  in the  Blood  Products
Business. The surrender of 500,000 Tranche A Warrants will be accounted for as a
reduction in share capital with an offsetting increase to contributed surplus.

     Under  Canadian GAAP, Labco  will utilize equity  accounting to account for
its investment in the Labs  Partnership and the cost  method to account for  its
investment in the Blood Products Partnership.

AGREEMENT OF MDS TO VOTE IN FAVOUR OF THE ARRANGEMENT

     Under  the  Arrangement Agreement,  MDS has  agreed that  it will  vote its
Hemosol Shares and cause its subsidiaries to vote their Hemosol Shares in favour
of the Arrangement Resolution.

INTERESTS OF CERTAIN PERSONS IN THE ARRANGEMENT

     Collectively, directors and executive officers of Hemosol beneficially  own
196,055  Hemosol  Shares,  which constitutes  less  than  1% of  the  issued and
outstanding Hemosol  Shares, and  4,036,393 Hemosol  Options (including  Hemosol
Options  granted on  October 29, 2003  and December 11,  2003 conditionally upon
Shareholder  and  regulatory  approval)  and  12,500  Hemosol  Warrants,   which
securities will be treated in accordance with the Plan of Arrangement. Except as
otherwise  disclosed  in  this Circular,  no  director or  executive  officer of
Hemosol nor  any affiliate  of any  of the  foregoing persons  has any  material
interest,  direct or indirect,  by way of beneficial  ownership of securities or
otherwise in any matter to be acted upon at the Meeting, except for any interest
arising from  the direct  or indirect  ownership of  Hemosol Shares  or  Hemosol
Options.
                                        44


     MDS  has been a major shareholder of  Hemosol and has had representation on
the Hemosol Board since Hemosol was incorporated in 1985. Currently, of the  ten
directors  on the  Hemosol Board,  four are  related to  MDS by  virtue of being
directors, officers or employees of MDS  or its affiliates. These directors  are
R.  Ian Lennox, Wilfred G. Lewitt, Edward K.  Rygiel and Nelson M. Sims, each of
whom abstained from voting  on the resolution of  the Hemosol Board  authorizing
the Arrangement Agreement and the transactions contemplated thereby, as required
by  the OBCA.  In the past  two years,  MDS, through its  representatives on the
Hemosol Board, has  been indirectly  aware of material  events and  transactions
affecting Hemosol.

     To  the knowledge of the  management of Hemosol, each  of the directors and
executive officers of Hemosol currently intends to vote the Hemosol Shares owned
or controlled by him in favour of the Arrangement Resolution for the reasons set
forth in  this Circular.  Other than  the recommendation  of the  Hemosol  Board
disclosed  in this Circular, no director or  executive officer of Hemosol or MDS
has made a recommendation in support of or opposed to the Arrangement.

     Hemosol has no knowledge as to whether any of the directors and officers of
MDS (other than any director of  Hemosol) currently intends to vote the  Hemosol
Shares, if any, owned or controlled by such person, in favour of the Arrangement
Resolution.

     Hemosol  has  retained KPMG  to be  financial  advisors to  the Independent
Committee with respect to  the Arrangement. KPMG has  received and will  receive
fees  from Hemosol  for services  rendered. E&Y,  tax advisors  to Hemosol, will
receive fees from Hemosol for services rendered.

                        HEMOSOL PRIOR TO THE ARRANGEMENT

     Hemosol  is  a   biopharmaceutical  company  focused   on  the   discovery,
development  and manufacture of products based  on human blood proteins. Hemosol
has  a  range  of  products  in  development,  including  its  principal  oxygen
therapeutic  product,  HEMOLINK. HEMOLINK  is  a highly  purified, human-derived
oxygen therapeutic product (historically termed a blood substitute) designed  to
sustain   life  by  delivering  oxygen  immediately,  effectively,  and  safely,
resulting in improved patient outcomes and  to eliminate the need for donor  red
blood cell transfusions in patients suffering from acute anemia. Hemosol is also
developing  additional therapeutics and a  hemoglobin-based delivery platform to
treat diseases such as hepatitis C and cancers  of the liver, as well as a  cell
therapy initially directed to the treatment of cancer through its cell expansion
and  stem cell research activities. In  addition to the products currently under
development, Hemosol intends  to use its  state-of-the-art Hemolink Building  to
produce  valuable  therapeutic  plasma-based  proteins  pursuant  to  a recently
announced strategic  alliance with  ProMetic. See  "-- Strategic  Alliance  with
ProMetic"  below. Hemosol also  continues to advance a  number of initiatives to
generate revenue  in  the  near-term  through the  provision  of  blood  related
bio-manufacturing services to biotechnology and biopharmaceutical companies. See
"-- Bio-Manufacturing Services" below.

     Hemosol  was incorporated under the OBCA by articles of incorporation dated
July 11, 1985.  Hemosol's registered  and principal  office is  located at  2585
Meadowpine  Boulevard, Mississauga,  Ontario, Canada  L5N 8H9  and the telephone
number for this office is (905) 286-6200.

CLINICAL TRIALS AND NON-CLINICAL ANALYSES

     In March 2003,  following the  receipt of information  from Hemosol's  Data
Safety Monitoring Board (the "DSMB") for the Phase II clinical trial for the use
of  HEMOLINK in primary  cardiac bypass grafting  ("CABG") surgery (HLK213/304),
Hemosol elected  to halt  enrolment of  patients in  the study  at 152  patients
(slightly lower than the originally planned enrolment of 180 patients) pending a
review  of safety data. The  DSMB's comments were based  on an observation of an
imbalance in the incidence  of certain adverse events  between the HEMOLINK  and
control  groups. Although  the DSMB had  recently cleared the  trial to continue
following the third and final interim safety review, its ongoing review of  data
indicated  that  there might  be potential  for an  increase in  certain cardiac
adverse events in the HEMOLINK group. As a precaution, Hemosol also  voluntarily
suspended enrolment in the Phase II clinical trial involving the use of HEMOLINK
in patients undergoing high blood loss orthopaedic surgery. At the time of these
suspensions,   Hemosol  had  received  approval  from   the  U.S.  Food  &  Drug
Administration (the "FDA") to conduct two additional phase II trials in the U.S.
- -- HLK 211  chemotherapy related anemia  trial and HLK  299 severe acute  anemia
trial.

                                        45


     In  June 2003, Hemosol completed its internal review of data generated from
the cardiac trial (HLK213/304)  for the use of  HEMOLINK in patients  undergoing
CABG  surgery.  The review  confirmed the  observation  made by  the DSMB  of an
imbalance of the incidence  of certain adverse events  between the HEMOLINK  and
control  groups with  a higher  number occurring  in the  HEMOLINK group.  It is
unclear what  role  HEMOLINK  played  in causing  the  imbalance.  As  expected,
limiting  enrolment decreased  the planned statistical  power of  the study with
respect to efficacy, and the study was  unable to meet its primary objective  to
demonstrate efficacy in the total patient population.

     Hemosol elected to terminate the HLK213/304 trial early in order to conduct
a full safety analysis and initiated a comprehensive process aimed at completely
understanding  the data  in the  context of the  observations made  by the DSMB.
Among the elements  of this process  was the creation  of an Independent  Safety
Review Committee (the "ISRC") to review the safety data from HLK213/304 in order
to  assist Hemosol in identifying the cause of the imbalances found by the DSMB.
The ISRC, which  has already  completed its task,  was comprised  of experts  in
their  respective fields  of transfusion  medicine, cardiology, anaesthesiology,
cardiac surgery and biostatics to review the safety data from HLK213/304. At the
same time, Hemosol's  Scientific Advisory  Board (the "SAB")  undertook its  own
evaluation  of the safety data. Based on the  final findings of the ISRC and the
SAB, Hemosol believes  that it  needs to complete  additional non-clinical  work
prior  to re-initiating the  clinical trials. This process  is underway and will
involve further  discussion with  regulatory  agencies. Hemosol  has  sufficient
inventory  of HEMOLINK  to complete all  non-clinical studies.  Hemosol does not
expect to expend significant amounts of  its resources on this work and  further
clinical   and  commercial  development  will  depend  on  (i)  the  outcome  of
discussions with  the relevant  regulatory  agencies, (ii)  financial  resources
and/or (iii) the success of partnering activities.

     Hemosol  continues  to  advance  non-clinical  analysis  on  HEMOLINK  that
includes both in vitro and in vivo studies. Hemosol intends to review its  plans
with  the  FDA in  2004  with the  objective  of establishing  agreement  on the
clinical  path  for  HEMOLINK  in  the  fourth  quarter  of  2004.  Hemosol  has
significant  knowledge  in  the area  of  oxygen therapeutics  and  continues to
believe that HEMOLINK may prove to be a valuable therapeutic to treat a  variety
of indications including, anemia caused by chemotherapy or blood replacement for
patients with life threatening blood loss.

     Following  the decision  to place  HEMOLINK on  clinical hold,  Hemosol has
expanded its long-term strategic focus to include the discovery, development and
manufacture of a wide  array of products derived  from human blood proteins,  as
evidenced by the strategic alliance with ProMetic for which a binding memorandum
of understanding was entered into between Hemosol and ProMetic in December 2003,
as described below.

MANAGEMENT AND EMPLOYEES

     In  April 2003, Hemosol  took proactive steps to  manage its cash burn-rate
and scale back all spending not related to the analysis of the HLK 213/304 data,
by giving eight weeks' working notice to substantially all of its employees.  To
preserve  the  greatest strategic  flexibility  in the  circumstances, retention
packages were provided to  a core group  of senior personnel.  The cash cost  of
these  severances and the retention program was approximately $1.8 million. As a
result of its cost  savings plan, Hemosol's average  monthly cash burn-rate  has
been reduced to approximately $1.2 million.

     In  May  2003, John  Kennedy, at  the time,  President and  Chief Executive
Officer of Hemosol, took a medical leave of absence for an indeterminate  period
of  time and  Lee Hartwell,  Chief Financial  Officer of  Hemosol, was appointed
Interim Chief Executive Officer.  Mr. Kennedy passed away  on June 4, 2003.  Lee
Hartwell has subsequently been appointed Hemosol's President and Chief Executive
Officer while maintaining his position as Chief Financial Officer.

STRATEGIC ALLIANCE WITH PROMETIC

     On  December  4,  2003, Hemosol  announced  that  it had  entered  into the
ProMetic MOU that  will involve  Hemosol licensing the  novel plasma  separation
technology    developed   by   ProMetic   and   its   strategic   partner,   the

                                        46


American National  Red Cross.  The principal  commercial terms  of the  proposed
strategic alliance, as set out in the ProMetic MOU, will include:

     -  Hemosol obtaining from ProMetic the exclusive North American licence for
        the  novel cascade  purification process  developed by  ProMetic and the
        American National Red Cross (the "Cascade") to recover valuable proteins
        from human plasma;

     -  the implementation  and  optimization of  the  Cascade at  the  Hemolink
        Building;

     -  Hemosol's  exclusive right to  sell products developed  with the Cascade
        into the North American market;

     -  the commitment  in principle  of the  American National  Red Cross  that
        following  execution of  a definitive licence  agreement between Hemosol
        and  ProMetic  with   respect  to   the  Cascade   and  the   successful
        implementation  of the  Cascade at  the Hemolink  Building, the American
        National Red Cross will supply  raw materials to Hemosol for  processing
        and  purchase from Hemosol specific  therapeutic products isolated using
        the Cascade; and

     -  identifying,  developing  and  exploiting  commercial  opportunities  in
        addition to those available from the use of the Cascade.

     The  Cascade  was developed  under an  existing strategic  alliance between
ProMetic and the American National Red Cross that was formed in February 2002 to
co-develop and license to third parties proprietary technology for the  recovery
and  purification of valuable therapeutic proteins  from human blood plasma. The
Cascade process integrates novel technologies in a sequence which is expected to
significantly improve both the yield and  range of valuable proteins capable  of
being  isolated from human  plasma. The commercial  drivers underlying Hemosol's
use of this technology are (i)  the Cascade's ability to potentially narrow  the
increasing  gap between the  growing demand for these  products and the inherent
limitations in traditional  fractionation methods and  (ii) the opportunity  the
technology provides to identify and recover novel therapeutic proteins which may
have  significant  commercial  potential  and which  are  not  recoverable using
conventional plasma fractionation methods.

     Hemosol expects to  become the first  licensee of this  technology and  its
exclusive  user to manufacture products for sale into the North American market,
which is the largest single  market for plasma-based proteins. Commercial  sales
of  therapeutic products manufactured using the Cascade will require the advance
approval of the applicable  regulatory agency in  each jurisdiction where  sales
are contemplated.

     In  addition to full-scale commercial  production in North America, Hemosol
believes it will be  capable of securing interim  and supplementary revenues  by
supplying  clinical trial material to  future Cascade licensees worldwide. Under
the implementation schedule contemplated in  the ProMetic MOU, Hemosol plans  to
produce  these clinical trial materials  and receive interim revenues therefrom,
in advance  of receiving  regulatory  approval for  the large  scale  commercial
production  and sale of products using  the Cascade. Access to clinical material
by subsequent licensees of the Cascade will be key to accelerating the  approval
processes  for  these products  with the  regulatory  bodies in  each subsequent
licensee's jurisdiction.

     In addition  to  potentially  providing Hemosol  with  the  opportunity  to
participate  in the  existing and growing  market for  therapeutic proteins with
products that  have  demonstrated  strong  demand,  Hemosol  believes  that  the
strategic alliance with ProMetic will also enhance Hemosol's ongoing development
of oxygen therapeutics, such as HEMOLINK, as well as other products in Hemosol's
drug  development  pipeline. Hemosol  believes the  strategic alliance  will not
interfere with  current  development programs  for  HEMOLINK or  with  Hemosol's
objective  to establish  the clinical  path forward  for HEMOLINK  in the fourth
quarter of 2004.

     As consideration for ProMetic  entering into the  binding ProMetic MOU  and
the  commencement of  implementation activities  by the  parties, Hemosol issued
2,000,000 Hemosol Shares to ProMetic. Hemosol has also agreed to pay ProMetic  a
staged  licence fee  with a  maximum aggregate  value of  $15.5 million  and the
issuance by  Hemosol of  1,000,000  Hemosol Shares.  Discrete payments  of  this
staged  licence fee will be due and payable by Hemosol to ProMetic following the
execution of a  definitive licence agreement  and upon the  achievement of  four
separate  predetermined  technical  and regulatory  milestones  at approximately
equal intervals  over the  next four  years.  The first  milestone will  be  the
execution  of a definitive licence agreement that will trigger a cash payment of
$1.5 million and the obligation of Hemosol to issue 1,000,000 Hemosol Shares  to
ProMetic,  subject to regulatory  approval. Hemosol and  ProMetic are working to
achieve  this  preliminary   milestone  during  the   first  quarter  of   2004.
                                        47


The  final milestone payment will consist of $5 million and will be triggered by
the receipt of regulatory approval for the commercial sale of the first  product
produced using the Cascade.

     In addition to the licence fee, the ProMetic MOU also provides that Hemosol
will pay ProMetic royalty fees of 8% of net sales of products isolated using the
Cascade to resellers and a royalty of 5% of net sales of products isolated using
the Cascade to end-users, both on a worldwide basis.

BIO-MANUFACTURING SERVICES

     Hemosol  is actively pursuing opportunities to generate revenues and reduce
its cash burn  over the  short to  mid-term by  using the  Hemolink Building  to
provide  bio-manufacturing  services  to  companies  in  the  biotechnology  and
biopharmaceutical sectors  focused  in  the  area of  blood  and  blood  protein
products.  Hemosol believes there  is considerable demand  for the services that
Hemosol can  offer by  combining  its Hemolink  Building with  the  considerable
experience  Hemosol's employees can  provide with respect  to the manufacture of
blood-related products.

OTHER PRODUCTS

     Hemosol has a diverse pipeline of new product candidates, several of  which
are  now undergoing pre-clinical evaluation.  These product candidates have been
developed using  technologies that  are based  upon the  expertise of  Hemosol's
scientists in protein bioconjugation and cell expansion. HEMOLINK is one example
of  protein  bioconjugation  in  which human  hemoglobin,  a  protein,  has been
stabilized and polymerized  using o-raffinose,  a cross-linker.  Other types  of
hemoglobin  conjugates in development include conjugates of hydroxyethyl starch,
anti-oxidants, and therapeutic drugs.

     As a means of establishing its own source of human hemoglobin, Hemosol  has
been  conducting discovery research in  expanding human blood-forming stem cells
through cell culture. These efforts have led to methods to induce an established
cell line to produce high levels of human hemoglobin, as well as the development
of a T cell therapy for the  treatment of cancer. The identification of  factors
affecting  blood cell growth and development  are the direct result of Hemosol's
activities in stem cell research.

PROPERTY

     On January 29, 2003, Hemosol entered into an amended and restated lease for
a term  of eight  years and  11 months  from and  including August  1, 1997  and
terminating  on June 30, 2006 with respect to Hemosol's Skyway facility. Hemosol
subsequently determined that the Skyway facility was no longer required for  the
execution  of  Hemosol's business  strategy and,  on  December 1,  2003, Hemosol
terminated its lease and sublease obligations and sold the equipment located  at
the Skyway facility for net proceeds of $1.1 million.

SIGNIFICANT CORPORATE TRANSACTIONS

     Other  than  the transactions  contemplated  by the  Arrangement Agreement,
neither MDS nor any of its directors or executive officers has been involved  in
any  negotiations,  or a  party to  any transaction  or material  contract, with
Hemosol concerning  a  merger,  consolidation,  acquisition,  tender  offer  for
Hemosol's  securities, election of Hemosol directors or a sale or other transfer
of a  material  amount  of  Hemosol's assets.  Similarly,  except  as  disclosed
elsewhere  in  this  Circular,  neither  Hemosol nor  any  of  its  directors or
executive officers has  been involved  in any negotiations,  or a  party to  any
material  contract, with  any other  person concerning  a merger, consolidation,
acquisition,  tender  offer  for  Hemosol's  securities,  election  of   Hemosol
directors or a sale or other transfer of a material amount of Hemosol's assets.

CREDIT FACILITY

     On  October 25, 2002, the Bank extended the Bank Loan to Hemosol. Hemosol's
obligations in connection with the Bank Loan are secured by a fixed and floating
first charge in  favour of  the Bank  over all  of Hemosol's  real and  personal
property  assets. The  Bank Loan replaced  Hemosol's undrawn  $35 million senior
credit facility which had a $15  million cash collateral requirement. The  terms
of  the Bank Loan include less restrictive covenants and interest at the reduced
rate of prime plus 1% per annum, or  a bankers' acceptance fee of 2% per  annum,
compared to prime

                                        48


plus  3% per annum for  the unused senior credit  facility. As a result, Hemosol
formally terminated  the  senior  credit  facility  on  November  22,  2002.  In
addition,  an unused $12.5 million subordinate credit facility was also formally
terminated  on  November  22,   2002.  Total  deferred   debt  issue  costs   of
approximately  $6.5 million were  written off during  the 2002 fiscal  year as a
result of  the  cancellation  of  the  $35  million  senior  and  $12.5  million
subordinate  credit facilities. These  costs represented both  cash and non-cash
items.

     The Bank Loan, which  is fully drawn,  was initially to  expire on May  25,
2004, but was extendible for up to an additional twelve-month period. On October
22,  2002, Hemosol  entered into the  MDS MOU,  pursuant to which  MDS agreed to
enter into  the  MDS  Guarantee  to  guarantee the  Bank  Loan.  Under  the  MDS
Guarantee,  the Bank agreed to request payment  from MDS prior to exercising its
remedies under the security  granted by Hemosol and  MDS would be subrogated  to
and  take an assignment  of the rights and  remedies of the  Bank under the Bank
Loan and the security granted by Hemosol in connection with the Bank Loan.

     As consideration  for  providing  the MDS  Guarantee,  Hemosol  issued  the
Tranche  A Warrants to MDS. Each Tranche A Warrant entitles MDS to subscribe for
and purchase one Hemosol Share at a price of $1.00. 5,000,000 Tranche A Warrants
are exercisable, in whole or in part, from and after the date upon which the MDS
Guarantee was delivered by MDS (the "Guarantee Date") and prior to the later  of
the  third anniversary of the Guarantee Date and, if the Bank Loan is not repaid
within 15  months of  the Guarantee  Date (the  "Initial Term"),  twelve  months
following the date upon which the Bank Loan is repaid in full. For each whole or
part  month that the Bank Loan remains outstanding beyond the Initial Term (to a
maximum of three  additional months)  (each such whole  or part  month being  an
"Extension  Month"), MDS  may exercise  warrants entitling  it to  subscribe for
333,333 Hemosol Shares at any time and from time to time during the period  from
and  after the first day  of the subject Extension Month  and prior to the third
anniversary of such date. As  the Initial Term expired  on January 22, 2004,  on
February 22, 2004, MDS became entitled to exercise 333,333 Tranche A Warrants in
addition  to  the  5,000,000  Tranche A  Warrants  that  were  exercisable prior
thereto. If the 5,333,333 Tranche  A Warrants which are immediately  exercisable
as  of the date  hereof were to  be exercised, MDS  would directly or indirectly
control 11,883,230  Hemosol Shares,  representing 21.2%  of the  Hemosol  Shares
issued  and outstanding as of the date of this Circular. If the Bank Loan is not
repaid by Hemosol by the  expiry of the Initial Term  and the Bank Loan  remains
outstanding  for  an additional  three  months, up  to  1,000,000 of  the issued
Tranche A Warrants would become exercisable.  If all of the 6,000,000 Tranche  A
Warrants  become exercisable and are exercised by MDS, MDS would hold 12,549,897
Hemosol Shares, representing 22.4% of the Hemosol Shares issued and  outstanding
as of the date hereof. Under the Arrangement, MDS will surrender one-half of the
1,000,000 Tranche A Warrants which will reduce by one-half the number of Tranche
A Warrants that become exercisable during each Extension Month.

     The  original  MDS  MOU contemplates  that,  in the  event  that regulatory
approval is obtained to issue an additional 4,000,000 Tranche B Warrants to  MDS
on a date which is at least six months from the Guarantee Date to entitle MDS to
subscribe  for and purchase up  to 4,000,000 Hemosol Shares  at a price of $1.00
per Hemosol Share, the  Bank Loan may  be extended for  up to twelve  additional
months  (to a maximum of 30 months in the aggregate). In such case, Hemosol will
issue 4,000,000  Tranche  B Warrants  to  MDS following  receipt  of  regulatory
approval  to do  so. For  each whole or  part month  that the  Bank Loan remains
outstanding beyond 18 months  (to a maximum of  twelve additional months)  (each
such  whole  or  part month  being  an  "Additional Extension  Month"),  MDS may
exercise Tranche B Warrants entitling it to subscribe for 333,333 Hemosol Shares
(333,337 in the final Additional Extension Month, to reach a total of 4,000,000)
at any time and from time to time during the period from and after the first day
of the subject Additional Extension Month and prior to the earlier of the  third
anniversary  of such date and the fifth anniversary of the Guarantee Date. Under
the Arrangement, MDS will surrender one-half of the 4,000,000 Tranche B Warrants
which will  reduce by  one-half the  number of  Tranche B  Warrants that  become
exercisable during each Additional Extension Month.

     In December 2003, MDS agreed to extend the MDS Guarantee from June 15, 2004
to  October 21, 2004, and the Bank agreed  to extend the expiry date of the Bank
Loan from May  25, 2004  to October 1,  2004. In  the event that  the Tranche  B
Warrants  are issued to  MDS by August  25, 2004 (Shareholder  approval for such
issuance having been obtained at the January Special Meeting), the MDS Guarantee
will extend to June 20, 2005, in which  case the Bank Loan will be repayable  on
May  25, 2005. In the event that the Tranche B Warrants are not issued to MDS by
August 25, 2004, MDS will have the  option of terminating the MDS Guarantee,  in
which case the Bank Loan will be repayable on October 1, 2004.

                                        49


CLINICAL TRIAL SUPPORT SERVICES

     In  2002 and 2003, a wholly-owned subsidiary of MDS provided clinical trial
support services to  Hemosol in  connection with the  HEMOLINK clinical  trials.
Hemosol  paid MDS approximately $123,000  in 2002 and $43,000  in 2003 for these
services. The fees for these services were negotiated on an arm's-length basis.

NASDAQ LISTING QUALIFICATIONS PANEL HEARING

     On  October  23,  2003,  Hemosol  received  a  NASDAQ  staff  determination
indicating  that Hemosol  was not  in compliance with  the minimum  bid price of
US$1.00 per  Hemosol Share  which  is a  requirement  for continued  listing  on
NASDAQ.  Since Hemosol was not able  to achieve compliance with this requirement
during the six-month period ended October 22, 2003, NASDAQ staff indicated  that
the  Hemosol  Shares  were  subject  to  delisting  from  NASDAQ.  Subsequently,
beginning December 4, 2003, Hemosol achieved a minimum bid price on NASDAQ above
the US$1.00 per share minimum  bid price requirement. Consequently, on  December
19,  2003, NASDAQ  staff notified Hemosol  that it had  regained compliance with
NASDAQ's minimum bid price  requirement and was no  longer subject to  delisting
for its past failure to meet this requirement.

SPECIAL WARRANT OFFERING

     On  November 28, 2003,  Hemosol completed the issue  and sale (the "Special
Warrant Offering") of 7,200,000 Series A special warrants (the "Series A Special
Warrants") and  641,800  Series  B  special  warrants  (the  "Series  B  Special
Warrants",  and  together  with  the Series  A  Special  Warrants,  the "Special
Warrants") through  Loewen, Ondaatje,  McCutcheon  Limited and  Vengate  Capital
Partners  Company, as agents (collectively,  the "Agents"). The Special Warrants
were issued at a purchase price of $0.75 per Special Warrant for gross  proceeds
of  $5,881,350.  Each Special  Warrant  entitled the  holder  to acquire,  at no
additional cost, one  Hemosol Share and  one-half of one  Hemosol Warrant.  Each
whole  Hemosol Warrant entitles the holder thereof to purchase one Hemosol Share
at an exercise price of  $0.90 per Hemosol Share at  any time prior to  November
28,  2006, unless the volume-weighted average share  price of a Hemosol Share is
$2.25 or  more  for 20  consecutive  trading days,  in  which case  the  Hemosol
Warrants  must be exercised within  30 days of the date  of notice by Hemosol of
such event.

     For their services  in connection  with the Special  Warrant Offering,  the
Agents  were paid a commission  equal to 7% of the  gross proceeds in respect of
the sale of the Special Warrants pursuant to the Special Warrant Offering. As an
additional fee to the Agents, Hemosol issued to the Agents broker warrants which
have been exercised into a total of 392,090 Broker Options. See "The Arrangement
- --  Treatment  of  Hemosol  Convertible   Securities  in  Connection  with   the
Arrangement".

     Hemosol  received gross proceeds of $5.4  million on closing of the Special
Warrant Offering  on November  28, 2003,  for  the sale  of 7,200,000  Series  A
Special  Warrants. The remaining proceeds of $481,350  in respect of the sale of
641,800 Series B Special Warrants were placed into escrow on the closing of  the
Special  Warrant Offering  and released  from escrow  and paid  to Hemosol after
receipt of shareholder approval  to permit Hemosol to  issue Hemosol Shares  and
Hemosol Warrants underlying the Special Warrants as described below.

     A  final prospectus  qualifying the  distribution of:  (i) up  to 7,841,800
Hemosol Shares and up to 3,920,900  Hemosol Warrants issuable upon the  exercise
of  the Special Warrants and (ii) 392,090 Broker Options, was filed in Canada on
January 13,  2004  and receipted  on  January 15,  2004.  Following  Shareholder
approval  at the January  Special Meeting, both series  of Special Warrants were
exercised, for no  additional consideration, into  7,841,800 Hemosol Shares  and
3,920,890  Hemosol  Warrants,  and  the  broker  warrants  of  the  Agents  were
exercised, for no additional consideration, into Broker Options. See "-- January
Special Meeting" below.

     Hemosol intends to use the net proceeds of the Special Warrant Offering  to
finance   the  completion  of   the  non-clinical  analysis   of  HEMOLINK,  the
implementation of Hemosol's contract bio-manufacturing strategy for the Hemolink
Building,  the  further  development  of  product  candidates  and  for  general
corporate purposes.

                                        50


JANUARY SPECIAL MEETING

PRIVATE PLACEMENT

     A  special meeting (the "January Special  Meeting") of the Shareholders was
held on January 22, 2004 at which the Hemosol Shareholders adopted a  resolution
authorizing  Hemosol  to  issue or  make  issuable  by private  placement  up to
23,051,892 additional Hemosol  Shares (on a  pre-consolidation basis), and  more
specifically:

     (a)  subject to regulatory approval, the issuance by Hemosol of:

        (i)   641,800  Hemosol  Shares  and  320,900  Hemosol  Warrants  on  the
              exercise of the 641,800 Series B Special Warrants; and

        (ii)  32,090 Broker Options;

     (b)  subject to regulatory approval, the issuance by Hemosol to MDS of  the
          4,000,000 Tranche B Warrants; and

     (c)  subject to regulatory approval, the issuance by Hemosol in one or more
          private  placements during the  twelve-month period commencing January
          22, 2004 of  such number of  securities that would  result in  Hemosol
          issuing   or  making   issuable  18,041,057   Hemosol  Shares   (on  a
          pre-consolidation basis).

SHARE CONSOLIDATION

     At the  January  Special  Meeting,  Shareholders  also  adopted  a  special
resolution approving an amendment to the articles of Hemosol to consolidate (the
"Share Consolidation") the issued and outstanding Hemosol Shares on the basis of
a  ratio within the range of one  post-consolidation Hemosol Share for every two
pre-consolidation Hemosol  Shares to  one post-consolidation  Hemosol Share  for
every  four pre-consolidation Hemosol Shares, with  the ratio to be selected and
implemented by the Hemosol Board  in its sole discretion,  at any time prior  to
January 22, 2005.

     If  the Arrangement  is completed,  the Shareholders'  authorization at the
January Special Meeting to allow Hemosol to effect the Share Consolidation  will
carry  forward, in effect, to  New Hemosol. As a  result, upon completion of the
Arrangement, the board of directors of  New Hemosol will have the discretion  to
carry  out a share consolidation  with respect to the  New Hemosol Shares on the
same terms as the Share Consolidation at any time prior to January 22, 2005.

CONSOLIDATED CAPITALIZATION

     Since December 31, 2002, the only  material changes in Hemosol's share  and
loan  capital were: (i) aggregate draws of $20 million by Hemosol under the Bank
Loan, resulting  in the  Bank Loan  being fully  drawn; (ii)  2,000,000  Hemosol
Shares  issued to ProMetic pursuant  to the ProMetic MOU  (see "Hemosol Prior to
the Arrangement --  Strategic Alliance  with ProMetic"); (iii)  pursuant to  the
Special  Warrant  Offering, issuing  up to  11,340,000  Hemosol Shares  upon the
exercise of 7,200,000 Series A Special Warrants and the related Broker  Warrants
and subsequently, 1,010,835 Hemosol Shares upon the exercise of 641,800 Series B
Special  Warrants  and  the related  Broker  Warrants (see  "--  Special Warrant
Offering" above); and (iv) the 2,766,225 Hemosol Options granted on October  29,
2003  and the 775,000 Hemosol Options granted on December 11, 2003, in each case
conditional upon Shareholder  and regulatory approval  (see "The Arrangement  --
Treatment  of Hemosol  Options in Connection  with the  Arrangement" and "Annual
Meeting and  Other Special  Business --  Ratification of  Conditional Grants  of
Options").

                                        51


PRICE RANGE AND TRADING VOLUME OF HEMOSOL SHARES

     The  Hemosol Shares  trade on  the TSX  under the  symbol "HML"  and on the
NASDAQ under the symbol "HMSL". The following table sets forth the range of high
and low closing prices and trading volumes of the Hemosol Shares on the TSX  and
NASDAQ for the periods indicated:

<Table>
<Caption>
                                                     TSX                           NASDAQ
                                         ---------------------------   -------------------------------
                                         $ HIGH   $ LOW     VOLUME     US$ HIGH   US$ LOW     VOLUME
                                         ------   -----   ----------   --------   -------   ----------
                                                                          
2002
First Quarter..........................   9.38    3.65    11,971,775     5.90      2.40      1,712,400
Second Quarter.........................   4.78    2.07     9,281,844     3.05      1.37        719,500
Third Quarter..........................   2.37    0.62    13,075,922     1.65      0.34      1,156,200
Fourth Quarter.........................   3.25    0.85    19,738,242     2.11      0.53      1,384,010
2003
January................................   2.98    2.05     2,009,758     1.97      1.38        218,780
February...............................   2.42    2.00       758,618     1.70      1.30        158,350
March..................................   2.35    0.51    11,850,445     1.60      0.33      1,133,850
  First Quarter........................   2.98    0.51    14,618,821     1.97      0.33      1,510,980
April..................................   0.96    0.41     6,711,706     0.70      0.28      1,260,630
May....................................   0.99    0.52     4,027,701     0.72      0.36      2,670,190
June...................................   1.80    0.68    15,607,770     1.35      0.50     19,814,400
  Second Quarter.......................   1.80    0.41    26,347,177     1.35      0.28     23,745,220
July...................................   0.88    0.67     1,971,108     0.65      0.45      3,130,510
August.................................   1.23    0.72     5,005,712     0.89      0.50     11,528,760
September..............................   1.20    0.85     6,299,328     0.89      0.61     11,285,900
  Third Quarter........................   1.23    0.67    13,276,148     0.89      0.45     25,945,170
October................................   0.99    0.78     2,588,628     0.75      0.59      3,045,730
November...............................   0.87    0.69     3,579,553     0.66      0.52      4,247,530
December...............................   2.28    0.78    24,540,442     1.73      0.60     71,588,704
  Fourth Quarter.......................   2.28    0.69    30,708,623     1.73      0.52     78,881,960
2004
January................................   1.95    1.38     8,708,174     1.48      1.07     12,029,400
February...............................   1.86    1.38     4,427,093     1.40      1.01      4,329,560
March 1 to March 10....................   1.60    1.39     1,333,871     1.23      1.04      1,613,800
</Table>

     The  closing price of the Hemosol Shares  on the TSX and NASDAQ on February
11, 2004, the  last trading  day prior  to the  announcement by  Hemosol of  the
Arrangement Agreement, was $1.63 and US$1.25, respectively. The closing price of
the  Hemosol Shares on the TSX and NASDAQ on March 9, 2004, the last trading day
prior to the date of this Circular, was $1.44 and US$1.08, respectively.

                                        52


OWNERSHIP OF SECURITIES

     The following table sets  forth (i) the number  of Hemosol Shares and  (ii)
the  total number of Hemosol  Options and/or Hemosol Warrants  and the number of
Hemosol Options  that  are exercisable  within  60  days after  March  1,  2004,
beneficially  owned, directly or indirectly, or  over which control or direction
is exercised, by each director and executive officer of Hemosol and, where known
after reasonable inquiry, by their respective  associates, as at March 1,  2004.
All Hemosol Options held by directors and officers of Hemosol as described below
will be treated as part of the Arrangement. See "The Arrangement -- Treatment of
Hemosol Options in Connection with the Arrangement".

<Table>
<Caption>
                                             TOTAL NUMBER OF
                                             HEMOSOL OPTIONS                                      PERCENTAGE OF
                                               AND HEMOSOL                                        HEMOSOL SHARES
                                                WARRANTS/          PERCENTAGE OF HEMOSOL     (DILUTED TO GIVE EFFECT
                                            NUMBER OF HEMOSOL     SHARES (DILUTED TO GIVE       TO HEMOSOL OPTIONS
                                           OPTIONS AND HEMOSOL     EFFECT TO ALL HEMOSOL       AND HEMOSOL WARRANTS
                               NUMBER OF   WARRANTS EXERCISABLE     OPTIONS AND HEMOSOL         EXERCISABLE WITHIN
                                HEMOSOL    WITHIN 60 DAYS AFTER      WARRANTS HELD BY             60 DAYS AFTER
NAME                           SHARES(1)      MARCH 1, 2004       DIRECTOR OR OFFICER)(2)       MARCH 1, 2004)(3)
- ----                           ---------   --------------------   -----------------------   --------------------------
                                                                                
Mitchell J. Kostuch..........   52,694        25,500(4)/19,164(5)        0.1392                       0.1279
George W. Masters............   34,786         13,000(6)/6,664           0.0850                       0.0738
Robert H. Painter............   10,192         13,000(7)/6,664           0.0412                       0.0300
C. Robert Valeri.............   35,283        18,613(8)/12,277           0.0959                       0.0847
R. Ian Lennox................        0          7,000(9)/6,000           0.0125                       0.0107
Edward K. Rygiel.............        0         5,000(10)/4,000           0.0089                       0.0071
Wilfred G. Lewitt............        0         5,000(11)/4,000           0.0089                       0.0071
Edward E. McCormack..........        0        10,000(12)/3,330           0.0178                       0.0059
Nelson M. Sims...............    2,000        18,000(13)/9,324           0.0356                       0.0202
Lee Hartwell.................    5,000      125,000(14)/93,977           0.2310                       0.1760
David Bell...................      100       98,807(15)/82,127           0.1758                       0.1462
Dirk Alkema..................   46,000       99,998(16)/82,088           0.2529                       0.2278
Michael Mathews..............   10,000       56,250(17)/34,138           0.1178                       0.0786
All directors and officers as
  a group....................  196,055         495,168/363,753           1.2204                       0.9906
</Table>

- ---------------

Notes:

(1)  The  information as to securities beneficially  owned or over which control
     or direction is exercised  is not within the  knowledge of Hemosol and  has
     been furnished by its directors and senior officers.

(2)  Assuming  the exercise of all Hemosol  Options and/or Hemosol Warrants held
     by such director or officer.

(3)  Assuming the exercise of all  Hemosol Options and/or Hemosol Warrants  held
     by a director or officer that are exercisable within 60 days after March 1,
     2004.

(4)  Mr.  Kostuch currently  holds 12,500  Hemosol Warrants  to purchase Hemosol
     Shares with an  exercise price  of $0.90 per  Hemosol Warrant,  as well  as
     13,000  Hemosol  Options. 21,000  Hemosol  Options were  also conditionally
     granted to  Mr. Kostuch  subject to  regulatory and  Shareholder  approval.
     Under the Arrangement, subject to Shareholder ratification and his consent,
     Mr.  Kostuch will be issued 12,500  warrants to purchase New Hemosol Shares
     at an exercise  price of $0.86  to replace the  Hemosol Warrants  currently
     held  by him and he will be issued a total of 21,000 New Hemosol Options to
     replace the  aggregate of  34,000  Hemosol Options  currently held  by  and
     conditionally granted to him.

(5)  This  total  number represents  6,664  Hemosol Options  and  12,500 Hemosol
     Warrants.

(6)  Mr. Masters currently holds 13,000 Hemosol Options. 21,000 Hemosol  Options
     were  also conditionally granted  to Mr. Masters  subject to regulatory and
     Shareholder  approval.  Under  the  Arrangement,  subject  to   Shareholder
     ratification  and his consent, Mr. Masters will be issued a total of 21,000
     New Hemosol  Options to  replace the  aggregate of  34,000 Hemosol  Options
     currently held by and conditionally granted to him.

(7)  Mr.  Painter currently holds 13,000 Hemosol Options. 21,000 Hemosol Options
     were also conditionally granted  to Mr. Painter  subject to regulatory  and
     Shareholder   approval.  Under  the  Arrangement,  subject  to  Shareholder
     ratification and his consent, Mr. Painter will be issued a total of  21,000
     New  Hemosol Options  to replace  the aggregate  of 34,000  Hemosol Options
     currently held by and conditionally granted to him.

(8)  Dr. Valeri currently holds 18,613  Hemosol Options. 21,000 Hemosol  Options
     were  also conditionally  granted to Dr.  Valeri subject  to regulatory and
     Shareholder  approval.  Under  the  Arrangement,  subject  to   Shareholder
     ratification  and his consent, Dr. Valeri will  be issued a total of 26,513
     New Hemosol  Options to  replace the  aggregate of  39,613 Hemosol  Options
     currently held by and conditionally granted to him.

                                        53


(9)  Mr.  Lennox currently  holds 7,000  Hemosol Options.  7,000 Hemosol Options
     were also conditionally  granted to  Mr. Lennox subject  to regulatory  and
     Shareholder   approval.  Under  the  Arrangement,  subject  to  Shareholder
     ratification and his consent,  Mr. Lennox will be  issued a total of  7,000
     New  Hemosol Options  to replace  the aggregate  of 14,000  Hemosol Options
     currently held by and conditionally granted to him.

(10) Mr. Rygiel currently  holds 5,000  Hemosol Options.  7,000 Hemosol  Options
     were  also conditionally  granted to Mr.  Rygiel subject  to regulatory and
     Shareholder  approval.  Under  the  Arrangement,  subject  to   Shareholder
     ratification  and his consent, Mr.  Rygiel will be issued  a total of 7,000
     New Hemosol  Options to  replace the  aggregate of  12,000 Hemosol  Options
     currently  held  by  and conditionally  granted  to him.  All  such Hemosol
     Options are  held in  trust for  MDS as  MDS has  a policy  which  prevents
     members of management who sit on the boards of directors of corporations in
     which  MDS holds an interest from  holding any shares in such corporations,
     unless such shares were acquired prior to their appointment to such board.

(11) Mr. Lewitt currently  holds 5,000  Hemosol Options.  7,000 Hemosol  Options
     were  also conditionally  granted to Mr.  Lewitt subject  to regulatory and
     Shareholder  approval.  Under  the  Arrangement,  subject  to   Shareholder
     ratification  and his consent, Mr.  Lewitt will be issued  a total of 7,000
     New Hemosol  Options to  replace the  aggregate of  12,000 Hemosol  Options
     currently  held  by  and conditionally  granted  to him.  All  such Hemosol
     Options are  held in  trust for  MDS as  MDS has  a policy  which  prevents
     members of management who sit on the boards of directors of corporations in
     which  MDS holds an interest from  holding any shares in such corporations,
     unless such shares were acquired prior to their appointment to such board.

(12) Mr. McCormack  currently  holds  10,000  Hemosol  Options.  21,000  Hemosol
     Options  were  also  conditionally  granted  to  Mr.  McCormack  subject to
     regulatory and  Shareholder approval.  Under  the Arrangement,  subject  to
     Shareholder  ratification and his  consent, Mr. McCormack  will be issued a
     total of 21,000  New Hemosol  Options to  replace the  aggregate of  31,000
     Hemosol Options currently held by and conditionally granted to him.

(13) Mr.  Sims currently  holds 18,000  Hemosol Options.  18,000 Hemosol Options
     were also  conditionally granted  to  Mr. Sims  subject to  regulatory  and
     Shareholder   approval.  Under  the  Arrangement,  subject  to  Shareholder
     ratification and his consent, Mr. Sims will be issued a total of 18,000 New
     Hemosol  Options  to  replace  the  aggregate  of  36,000  Hemosol  Options
     currently held by and conditionally granted to him.

(14) Mr.  Hartwell currently  holds 125,000  Hemosol Options.  1,383,113 Hemosol
     Options  were  also  conditionally  granted  to  Mr.  Hartwell  subject  to
     regulatory  and  Shareholder approval.  Under  the Arrangement,  subject to
     Shareholder ratification and  his consent,  Mr. Hartwell will  be issued  a
     total  of  1,383,113  New  Hemosol  Options  to  replace  the  aggregate of
     1,508,113 Hemosol Options  currently held by  and conditionally granted  to
     him.

(15) Dr.  Bell currently holds  98,807 Hemosol Options.  691,556 Hemosol Options
     were also  conditionally granted  to  Dr. Bell  subject to  regulatory  and
     Shareholder   approval.  Under  the  Arrangement,  subject  to  Shareholder
     ratification and his consent,  Dr. Bell will be  issued a total of  691,556
     New  Hemosol Options  to replace the  aggregate of  790,363 Hemosol Options
     currently held by and conditionally granted to him.

(16) Mr. Alkema currently holds 99,998 Hemosol Options. 691,556 Hemosol  Options
     were  also conditionally  granted to Mr.  Alkema subject  to regulatory and
     Shareholder  approval.  Under  the  Arrangement,  subject  to   Shareholder
     ratification  and his consent, Mr. Alkema will be issued a total of 691,556
     New Hemosol Options  to replace  the aggregate of  791,554 Hemosol  Options
     currently held by and conditionally granted to him.

(17) Mr. Mathews currently holds 56,250 Hemosol Options. 100,000 Hemosol Options
     were  also conditionally granted  to Mr. Mathews  subject to regulatory and
     Shareholder  approval.  Under  the  Arrangement,  subject  to   Shareholder
     ratification and his consent, Mr. Mathews will be issued a total of 100,000
     New  Hemosol Options  to replace the  aggregate of  156,250 Hemosol Options
     currently held by and conditionally granted to him.

     The following table sets  forth (i) the number  of Hemosol Shares and  (ii)
the  total number of Hemosol Options and  the number of Hemosol Options that are
exercisable within 60 days after March 1, 2004, beneficially owned, directly  or
indirectly,  or over which  control or direction is  exercised, by each director
and executive officer of MDS and, where known after reasonable inquiry, by their
respective associates.

<Table>
<Caption>
                                                        TOTAL NUMBER OF        PERCENTAGE OF         PERCENTAGE OF
                                                       HEMOSOL OPTIONS/       HEMOSOL SHARES         HEMOSOL SHARES
                                                           NUMBER OF         (DILUTED TO GIVE       (DILUTED TO GIVE
                                                        HEMOSOL OPTIONS        EFFECT TO ALL       EFFECT TO HEMOSOL
                                                      EXERCISABLE WITHIN      HEMOSOL OPTIONS     OPTIONS EXERCISABLE
                                  NUMBER OF HEMOSOL      60 DAYS AFTER       HELD BY DIRECTOR     WITHIN 60 DAYS AFTER
NAME                                  SHARES(1)          MARCH 1, 2004        OR OFFICER)(2)       MARCH 1, 2004)(3)
- ----                              -----------------   -------------------   -------------------   --------------------
                                                                                      
R. Ian Lennox...................            0           7,000(4)/6,000            0.0125                 0.0107
Wilfred G. Lewitt...............            0           5,000(5)/4,000            0.0089                 0.0071
Mary Mogford....................        1,700                        0            0.0030                 0.0030
Edward K. Rygiel................            0           5,000(6)/4,000            0.0089                 0.0071
Nelson M. Sims..................        2,000             18,000/9,324            0.0356                 0.0202
All directors and executive
  officers as a group...........        3,700            35,000/23,324            0.0689                 0.0481
</Table>

                                        54


- ---------------

Notes:

(1)  The information as to securities  beneficially owned or over which  control
     or direction is exercised is not within the knowledge of Hemosol or MDS and
     has been furnished by the directors and senior officers of MDS.

(2)  Assuming  the  exercise of  all Hemosol  Options held  by such  director or
     officer.

(3)  Assuming the exercise of all Hemosol Options held by a director or  officer
     that are exercisable within 60 days after March 1, 2004.

(4)  Mr.  Lennox currently  holds 7,000  Hemosol Options.  7,000 Hemosol Options
     were also conditionally  granted to  Mr. Lennox subject  to regulatory  and
     Shareholder   approval.  Under  the  Arrangement,  subject  to  Shareholder
     ratification and his consent,  Mr. Lennox will be  issued a total of  7,000
     New  Hemosol Options  to replace  the aggregate  of 14,000  Hemosol Options
     currently held by and conditionally granted to him.

(5)  Mr. Lewitt currently  holds 5,000  Hemosol Options.  7,000 Hemosol  Options
     were  also conditionally  granted to Mr.  Lewitt subject  to regulatory and
     Shareholder  approval.  Under  the  Arrangement,  subject  to   Shareholder
     ratification  and his consent, Mr.  Lewitt will be issued  a total of 7,000
     New Hemosol  Options to  replace the  aggregate of  12,000 Hemosol  Options
     currently  held  by  and conditionally  granted  to him.  All  such Hemosol
     Options are  held in  trust for  MDS as  MDS has  a policy  which  prevents
     members of management who sit on the boards of directors of corporations in
     which  MDS holds an interest from  holding any shares in such corporations,
     unless such shares were acquired prior to their appointment to such board.

(6)  Mr. Rygiel currently  holds 5,000  Hemosol Options.  7,000 Hemosol  Options
     were  also conditionally  granted to Mr.  Rygiel subject  to regulatory and
     Shareholder  approval.  Under  the  Arrangement,  subject  to   Shareholder
     ratification  and his consent, Mr.  Rygiel will be issued  a total of 7,000
     New Hemosol  Options to  replace the  aggregate of  12,000 Hemosol  Options
     currently  held  by  and conditionally  granted  to him.  All  such Hemosol
     Options are  held in  trust for  MDS as  MDS has  a policy  which  prevents
     members of management who sit on the boards of directors of corporations in
     which  MDS holds an interest from  holding any shares in such corporations,
     unless such shares were acquired prior to their appointment to such board.

     None of  the directors  or  the officer  of  MDS Subco  beneficially  owns,
directly  or indirectly, or exercises control  or direction over, any securities
of Hemosol.

     MDS beneficially owns,  directly or indirectly,  6,549,897 Hemosol  Shares,
representing  11.7% of the  Hemosol Shares issued  and outstanding. See "General
Proxy Matters -- Voting Securities and Principal Holders Thereof". MDS also owns
the Tranche A  Warrants and the  right to be  issued the Tranche  B Warrants  in
certain   circumstances.  See  "Hemosol  Prior  to  the  Arrangement  --  Credit
Facility".

SECURITIES TRANSACTIONS

     On February 20, 2004, Mitchell J.  Kostuch, a member of the Hemosol  Board,
purchased  on  the secondary  market 25,000  Hemosol  Shares and  12,500 Hemosol
Warrants for an aggregate purchase price of $18,750.

DIVIDEND POLICY

     Hemosol has not declared or paid any dividends since its inception in 1985.
There is  no restriction  on Hemosol's  present ability  to pay  dividends.  For
restrictions  on Labco's ability to pay dividends following the Arrangement, see
"Labco After the Arrangement -- Description of Share Capital".

PREVIOUS DISTRIBUTIONS

     During the five years prior to March 10, 2004, Hemosol distributed  Hemosol
Shares (other than Hemosol Shares purchased pursuant to the exercise of employee
stock  options, stock options granted to  external consultants or employee stock
purchase plans) as set forth below.

     On April 27, 1999, Hemosol issued 2,400,000 special warrants at a  purchase
price  per  special warrant  of $4.60  for gross  proceeds of  $11,040,000. Each
special warrant  entitled the  holder to  acquire, at  no additional  cost,  one
Hemosol  Share.  On May  25, 1999,  Hemosol issued  2,400,000 Hemosol  Shares in
exchange for these 2,400,000 special warrants.

     On January 17, 2000, Hemosol issued 5,520,000 Hemosol Shares at a  purchase
price per Hemosol Share of $8.35 for gross proceeds of $46,092,000. In addition,
Hemosol  granted 276,000 after-market support  options to the underwriters. Each
after-market support option entitled the holder to purchase one Hemosol Share at
a price of  $9.00 during the  period ended  October 31, 2001.  During 2001,  all
276,000 support options were exercised.

     On  March 27, 2000,  Hemosol issued 1,219,000 Hemosol  Shares at a purchase
price per  Hemosol  Share  of  $19.00 for  gross  proceeds  of  $23,161,000.  In
addition,   Hemosol  granted   60,950  after-market   support  options   to  the
underwriters. Each after-market support option  entitled the holder to  purchase
one  Hemosol Share at a price of $19.00 during the period ended October 5, 2001.
During 2001, all 60,950 support options expired.

                                        55


     On November  8,  2000, Hemosol  issued  333,333 Hemosol  Shares  for  gross
proceeds  of  $5 million  in  a private  placement  transaction. In  addition, a
16-month option was granted to purchase an additional 222,222 Hemosol Shares  at
$22.50 per Hemosol Share. During 2002, all 222,222 options expired.

     On November 10, 2000, Hemosol issued 85,000 Hemosol Share purchase warrants
at  an  exercise  price of  $18.00  per  Hemosol Share  in  connection  with the
finalization of its senior credit facility with National Bank of Canada and  The
Bank  of Nova Scotia. These warrants were recorded at an estimated fair value of
$624,000 using the Black-Scholes option pricing model and are exercisable at any
time until their expiry date in November 2005. All 85,000 purchase warrants were
cancelled in 2002.

     On December  14,  2000,  Hemosol  issued  400,000  Hemosol  Share  purchase
warrants at an exercise price of $18.00 per Hemosol Share in connection with the
finalization  of  its subordinate  credit facility  with the  Manufacturers Life
Insurance Company. These warrants have been recorded at an estimated fair  value
of  $2,276,000 using the Black-Scholes option  pricing model and are exercisable
at any time until  their expiry date  in December 2005. To  date, none of  these
warrants have been exercised.

     On  March 1,  2001, Hemosol issued  7,000,000 Hemosol Shares  at a purchase
price per Hemosol Share of $13.50  for gross proceeds of $94.5 million  pursuant
to  an underwritten public offering registered under the U.S. Securities Act. In
addition,  Hemosol  granted  1,050,000  over-allotment  options  entitling   the
underwriters  to purchase Hemosol Shares at a  price of $13.50 per Hemosol Share
during  the  period   ended  March   31,  2001.  During   2001,  all   1,050,000
over-allotment options were exercised for gross proceeds of $14,175,000.

     In  April 2002, Hemosol cancelled 85,000 Hemosol Share purchase warrants at
an exercise price of $18.00 per share previously issued on November 10, 2000  to
National  Bank of  Canada and  The Bank of  Nova Scotia,  and on  April 22, 2002
issued 45,000 Hemosol  Share purchase warrants  to The Bank  of Nova Scotia  and
60,000  to National Bank of  Canada, in each case at  an exercise price of $6.31
per Hemosol Share, which are exercisable at any time until their expiry date  on
April  22, 2007.  The difference  in fair  value between  the new  and cancelled
options determined using the Black-Scholes option pricing model of approximately
$186,000 was included in net loss for 2002. To date, none of these warrants  has
been exercised.

     On  April 18, 2002,  Hemosol issued 4,900,000  Hemosol Shares and 2,450,000
Hemosol Share  purchase  warrants,  offered  in units,  for  gross  proceeds  of
$22,050,000.  The purchase price  per unit, consisting of  one Hemosol Share and
one-half Hemosol Share purchase warrant, was $4.50. Each whole warrant  entitled
the  holder to purchase one Hemosol Share at  a price of $5.50 per Hemosol Share
at any time until their  expiry date on April 18,  2003. None of these  warrants
were exercised before their expiry.

     On  November 22, 2002, Hemosol issued the  Tranche A Warrants to MDS. These
warrants have been recorded at an  estimated fair value of $7,080,000 using  the
Black-Scholes option pricing model. See "-- Credit Facility" above.

     On  November 28,  2003, Hemosol completed  the Special  Warrant Offering as
discussed in "-- Special Warrant Offering" above.

DOCUMENTS INCORPORATED BY REFERENCE

     Hemosol is a reporting issuer in all Canadian jurisdictions. The  following
documents  of  Hemosol filed  with  the Canadian  Securities  Administrators are
specifically incorporated by reference  into and form an  integral part of  this
Circular:

     (a)  Annual Information Form dated May 27, 2003 for the year ended December
          31, 2002;

     (b)  the  Audited Financial Statements and the report of Hemosol's auditors
          thereon;

     (c)  management's  discussion  and  analysis  of  financial  condition  and
          results of operations contained in Hemosol's 2002 Annual Report;

     (d)  material  change report  dated March 20,  2003 in  connection with the
          announcement of the recommendation by Hemosol's Data Safety Monitoring
          Board to review safety data prior to continuing enrolment in Hemosol's
          cardiac trial (HLK 213/304);

     (e)  material change report dated  April 14, 2003  in connection with:  (i)
          the  announcement that Hemosol would be  limiting the enrolment in its
          cardiac trial (HLK 213/304) for its lead product HEMOLINK in  response
          to an imbalance in the incidence of certain adverse events between the
          HEMOLINK and the
                                        56


          control  groups;  and (ii)  the  announcement that  Hemosol  had given
          working notice to substantially all of its employees;

     (f)  material change report dated December  5, 2003 in connection with  the
          closing of the offering of Special Warrants;

     (g)  material  change report dated December 10, 2003 in connection with the
          announcement of the  entering into  of a  memorandum of  understanding
          dated December 3, 2003 with ProMetic; and

     (h)  material  change report dated February 20, 2004 in connection with the
          announcement of the entering into of the Arrangement Agreement.

     All documents of the type referred to above and all material change reports
(excluding  confidential  material  change  reports)  and  interim  consolidated
financial   statements  (including  management's   discussion  and  analysis  of
financial condition and results of operations in the quarterly reports for  such
interim  periods),  filed  by  Hemosol with  securities  commissions  or similar
authorities in the Provinces  of Ontario and Alberta  subsequent to the date  of
this  Circular and prior to the Effective Date will be deemed to be incorporated
by reference into, and form an integral part of, this Circular.

     Any statement  contained  in  a  document  incorporated  or  deemed  to  be
incorporated by reference herein will be deemed to be modified or superseded for
the  purposes of this Circular to the  extent that a statement contained herein,
or in any other  subsequently filed document  which also is or  is deemed to  be
incorporated  by reference  herein, modifies  or supersedes  such statement. The
modifying or  superseding statement  need  not state  that  it has  modified  or
superseded  a prior statement or include any  other information set forth in the
document  that  it  modifies  or  supersedes.  The  making  of  a  modifying  or
superseding statement shall not be deemed an admission for any purposes that the
modified or superseded statement, when made, constituted a misrepresentation, an
untrue statement of a material fact or an omission to state a material fact that
is required to be stated or that is necessary to make a statement not misleading
in light of the circumstances in which it was made. Any statement so modified or
superseded  will  not  be  deemed,  except  as  so  modified  or  superseded, to
constitute a part of this Circular.

     Information has  been  incorporated  by reference  in  this  Circular  from
documents  filed  with the  Canadian  Securities Administrators.  Copies  of the
documents incorporated herein by  reference may be  obtained on request  without
charge  from the  Secretary of  Hemosol at  2585 Meadowpine  Blvd., Mississauga,
Ontario L5N 8H9 (telephone (905) 286-6200). For the purposes of the Province  of
Quebec,  this Circular  contains information to  be completed  by consulting the
permanent information record. A copy of the permanent information record may  be
obtained  from  the  Secretary of  Hemosol  at the  above-mentioned  address and
telephone number.

     Hemosol is subject to the  informational requirements of the U.S.  Exchange
Act  and in  accordance therewith files  reports and other  information with the
SEC. The reports  and other information  filed by  Hemosol with the  SEC can  be
inspected and copied at the public reference facilities maintained by the SEC at
450  Fifth Street  N.W., Washington, D.C.  20549. Copies of  these documents are
also available on the SEC's website, http://www.sec.gov. Please call the SEC  at
1-800-SEC-0330  for further information on the operation of the public reference
room.

                                        57


                       NEW HEMOSOL AFTER THE ARRANGEMENT

NEW HEMOSOL

     New Hemosol  was incorporated  under the  OBCA on  February 24,  2004.  New
Hemosol  has  not carried  on  any active  business  since incorporation  and is
currently a wholly-owned subsidiary of Hemosol.

     Following the Arrangement, New Hemosol will, in effect, be the successor to
Hemosol's current Blood Products Business as it will hold a 93% interest in  and
be  the general partner of the Blood  Products Partnership. As such, New Hemosol
will be entitled to 93% of the partnership distributions from the Blood Products
Partnership.

     The Blood Products Partnership will own and operate Hemosol's current Blood
Products Business. See "The Blood Products Partnership After the Arrangement".

     On the Effective  Date, New Hemosol  will be  owned by MDS  and the  Public
Shareholders  on the same pro rata basis  as Hemosol was owned immediately prior
to the Effective Time.

SHARE CAPITAL

     Following the  Arrangement, New  Hemosol  will be  authorized to  issue  an
unlimited  number of New Hemosol  Shares and an unlimited  number of New Hemosol
Special Shares issuable  in series. The  following is a  summary of the  rights,
privileges,  restrictions  and conditions  attached to  the New  Hemosol Special
Shares and is subject to the provisions  of the New Hemosol Share Conditions  as
set  out in Exhibit 9  to the Arrangement Agreement attached  as Annex D to this
Circular.

PROVISIONS ATTACHING TO THE NEW HEMOSOL SHARES

     The holders of New Hemosol Shares will be entitled to receive notice of, to
attend and vote at any meeting of the shareholders of New Hemosol, with each New
Hemosol Share  carrying one  vote. The  holders of  New Hemosol  Shares will  be
entitled to receive dividends if, as and when declared by the board of directors
of New Hemosol, subject to the rights of holders of any other class of shares of
New  Hemosol entitled to receive  dividends in priority to  or rateably with the
holders of  New  Hemosol Shares.  The  holders of  New  Hemosol Shares  will  be
entitled  to share rateably in any distribution  of the assets of New Hemosol in
the event of any liquidation, dissolution or winding-up of New Hemosol,  whether
voluntary or involuntary, or any other distribution of the assets of New Hemosol
for  the purpose of winding up its affairs,  subject to the rights of holders of
any other class of shares of New  Hemosol entitled to receive the assets of  New
Hemosol  upon such distribution in  priority to or rateably  with the holders of
New Hemosol Shares.

PROVISIONS ATTACHING TO THE NEW HEMOSOL SPECIAL SHARES

     The New Hemosol Board may issue New Hemosol Special Shares at any time  and
from time to time in one or more series. Before the first shares of a particular
series  are issued, the New  Hemosol Board may fix the  number of shares in such
series and will determine, subject to the limitations set out in the articles of
New Hemosol, the designation, rights, privileges, restrictions and conditions to
attach to the  shares of  such series,  including, without  limitation, (i)  the
rate(s),  amount or method(s)  of calculation of dividends  and whether they are
cumulative, partly  cumulative  or  non-cumulative, and  whether  such  rate(s),
amount  or method(s) of calculation  will be subject to  change or adjustment in
the future, (ii) the date, manner and currency of payments of dividends and  the
date  from  which  they  accrue  or  become  payable,  (iii)  if  redeemable  or
purchasable, the  redemption  or purchase  price  and terms  and  conditions  of
redemption or purchase, with or without provision for purchase or similar funds,
(iv) the voting rights, if any, (v) any conversion, exchange or reclassification
rights  and (vi) any  other terms not inconsistent  with such provisions. Before
the issue of the first  shares of a series, the  New Hemosol Board will send  to
the  Director  articles  of  amendment  in  the  prescribed  form  containing  a
description of  such  series  including  the  designation,  rights,  privileges,
restrictions and conditions determined by the New Hemosol Board.

     The  New Hemosol Special  Shares of each  series will, with  respect to the
payment of  dividends  and  the distribution  of  assets  in the  event  of  the
dissolution,  liquidation or winding-up of New  Hemosol or other distribution of
its assets among its  shareholders for the purposes  of winding up its  affairs,
rank  on a parity with the New Hemosol  Special Shares of every other series. If
any amount  of  cumulative  dividends  (whether or  not  declared)  or  declared
                                        58


non-cumulative  dividends  or any  amount payable  on  any such  distribution of
assets constituting a return  of capital in respect  of the New Hemosol  Special
Shares of any series is not paid in full, the New Hemosol Special Shares of such
series  will participate rateably  with the New Hemosol  Special Shares of every
other series in respect of all accumulated cumulative dividends (whether or  not
declared)  and all declared  non-cumulative dividends or  all amounts payable on
any such distribution constituting a return of capital.

PRINCIPAL SHAREHOLDERS

     Upon completion of the Arrangement, the  Shareholders will hold all of  the
issued  and outstanding New  Hemosol Shares, on  the same pro  rata basis as the
Shareholders hold  Hemosol  Shares  immediately prior  to  the  Effective  Time.
Assuming  that MDS's shareholdings of Hemosol immediately prior to the Effective
Time are  the same  as its  current shareholdings,  MDS will  hold, directly  or
indirectly,  11.7% and the  Public Shareholders will  collectively hold 88.3% of
the issued and outstanding New Hemosol Shares.

DIRECTORS AND OFFICERS

     New Hemosol will have a minimum of one and a maximum of ten directors.  The
directors are to supervise the activities and manage the affairs of New Hemosol.

     At  the Meeting, Shareholders will be  asked to elect directors of Hemosol.
If the Arrangement Resolution is  approved, upon completion of the  Arrangement,
the newly elected directors of Hemosol will become the directors of New Hemosol.
See "Annual Meeting and Other Special Business -- Election of Directors".

     The  term of office of all directors will expire at the next annual meeting
of holders of New Hemosol Shares.

     The directors and officers of New  Hemosol will be covered by insurance  in
respect  of liability  that may  be incurred  by them  acting in  such capacity,
unless the  liability arises  because  such director  or  officer fails  to  act
honestly and in good faith with a view to the best interests of New Hemosol.

EMPLOYEES

     Upon  completion  of the  Arrangement, New  Hemosol  will employ  the three
current executive  officers of  Hemosol, being  Lee Hartwell,  President,  Chief
Executive  Officer  and Chief  Financial Officer,  Dirk Alkema,  Vice President,
Operations and David  Bell, Vice President,  Drug Discovery, as  well as  Pardip
Gill, Hemosol's controller. These individuals will be employed on the same terms
and  conditions  as  their  employment with  Hemosol  immediately  prior  to the
Effective Date.

NEW HEMOSOL CONVERTIBLE SECURITIES

     Under the Plan of Arrangement, New  Hemosol will assume the obligations  of
Hemosol  under the Hemosol Convertible Securities as if such Hemosol Convertible
Securities provided a  right to acquire  New Hemosol Shares  and/or New  Hemosol
Convertible  Securities (other  than a reduction  of the exercise  price of each
Hemosol Convertible Security by $0.04). As  a result, after the Effective  Date,
the  New  Hemosol  Convertible  Securities  will  be  identical  to  the Hemosol
Convertible Securities  (other than  such exercise  price reduction),  with  the
exception  of the reduction of the Tranche  A Warrants and Tranche B Warrants by
the respective number of Surrendered Warrants, as described in "The  Arrangement
- --   Treatment  of  Hemosol  Convertible   Securities  in  Connection  with  the
Arrangement".

NEW HEMOSOL STOCK OPTION PLAN

     At the  Meeting, Shareholders  will be  asked to  consider, and  if  deemed
advisable,  approve the adoption by New Hemosol  of the New Hemosol Stock Option
Plan. See "Annual Meeting and Other Special Business -- Approval of New  Hemosol
Stock Option Plan".

     The  purpose of the New  Hemosol Stock Option Plan  is to assist directors,
officers, members of  any scientific  advisory board  and key  employees of  and
consultants  to New Hemosol, its subsidiaries and the Blood Products Partnership
(each a "Participant"),  to participate  in the  growth and  development of  New
Hemosol  and its  subsidiaries by providing  such persons  with the opportunity,
through share options, to acquire an increased

                                        59


proprietary interest in New Hemosol. The  New Hemosol Stock Option Plan will  be
administered   by  a  compensation   committee  (the  "Compensation  Committee")
appointed by the New Hemosol Board.

     The maximum number of New Hemosol Shares  that may be issued under the  New
Hemosol  Option Plan is 5,500,000 or approximately 9.79% of the aggregate number
of Hemosol Shares issued and outstanding on a non-diluted basis.

     The New Hemosol  Stock Option  Plan will  be substantially  similar to  the
Hemosol  Stock Option Plan  and provides that  New Hemosol may,  pursuant to the
recommendations of the Compensation Committee and  upon the approval of the  New
Hemosol Board, grant to Participants New Hemosol Options to purchase New Hemosol
Shares.  The  purchase  price  per  each  optioned  New  Hemosol  Share  will be
determined by the New Hemosol Board, which purchase price will not be less  than
the  fair market value of a New Hemosol Share on the date the New Hemosol Option
is granted, except in respect of any  New Hemosol Options issued under the  Plan
of  Arrangement  (see  "The  Arrangement  --  Treatment  of  Hemosol  Options in
Connection with  the Arrangement"  and "--Transaction  Steps Under  the Plan  of
Arrangement").  The number  of New  Hemosol Shares  subject to  each New Hemosol
Option, the  expiration  date, the  extent  to  which New  Hemosol  Options  are
exercisable  and other  terms and  conditions relating  to such  options will be
determined by the Compensation Committee.  If no specific determination is  made
by  the  Compensation Committee,  each New  Hemosol  Option will  be exercisable
within five years from the  date of the grant, and  an optionee may take up  and
pay  for not more than 33 1/3% of  the New Hemosol Shares covered by such option
during each twelve-month period following the  first anniversary of the date  of
the  grant. If  the number of  New Hemosol Shares  taken up under  a New Hemosol
Option during any twelve-month period  is less than 33  1/3% of the New  Hemosol
Shares  covered by  such option, the  optionee will  have the right  at any time
during the remainder of the  term of the option to  purchase such number of  New
Hemosol Shares subject to the option which were purchasable but not purchased by
the optionholder during the twelve-month period.

     The  New Hemosol Stock Option  Plan is subject to  the terms and conditions
contained therein and should be read in its entirety. See Annex F, "New  Hemosol
Stock Option Plan", to this Circular.

SELECTED NEW HEMOSOL HISTORICAL AND PRO FORMA FINANCIAL INFORMATION

     Financial  information presenting New Hemosol's audited balance sheet as at
February 24, 2004, and unaudited pro forma financial data as at and for the year
ended December 31, 2003, each prepared in accordance with Canadian GAAP, is  set
out  in  Annex H  and Annex  I,  respectively. New  Hemosol was  incorporated on
February 24, 2004 and, accordingly, did not conduct business operations prior to
that date.  The unaudited  New  Hemosol pro  forma financial  information  gives
effect  to the transactions which are  directly attributable to the Arrangement,
up to and including the Effective Date,  and is presented on the basis that  New
Hemosol  will consolidate the balance sheet  and operating results of Hemosol as
the successor of Hemosol using Hemosol's historical accounting basis.

     The unaudited pro forma consolidated statement of loss and deficit for  the
year  ended December 31, 2003 gives effect  to the Arrangement and certain other
transactions, which either have  occurred or will  probably occur subsequent  to
December 31, 2003, as if they had occurred on January 1, 2003. The unaudited pro
forma  balance sheet as at December 31, 2003 gives effect to the Arrangement and
certain other transactions, which  either have occurred  or will probably  occur
subsequent  to December 31,  2003 as if they  had occurred on  such date. In the
opinion of  management, all  significant adjustments  necessary to  reflect  the
effects of the Arrangement have been made.

     The  unaudited pro forma financial information is presented for comparative
purposes only and  is not necessarily  indicative of what  New Hemosol's  actual
future  financial position  and operating results  would be.  This unaudited pro
forma financial information should be read in conjunction with, and is qualified
in its entirety by, the Audited Financial Statements.

REGISTERED OFFICE

     The registered and principal office of New Hemosol will be the same as  the
current  registered and principal  office of Hemosol  located at 2585 Meadowpine
Boulevard, Mississauga, Ontario, Canada L5N  8H9. The telephone number for  this
office will be (905) 286-6200.

                                        60


                          LABCO AFTER THE ARRANGEMENT

LABCO AFTER THE ARRANGEMENT

     Following the Arrangement, Labco (formerly Hemosol) will hold:

     (a)  a  7% limited partnership interest  in the Blood Products Partnership;
          and

     (b)  a 99.99% limited partnership interest in the Labs Partnership.

     The Blood  Products Partnership  will own  and operate  the Blood  Products
Business.  See "The Blood Products Partnership  After the Arrangement". The Labs
Partnership will own and  operate MDS's Labs  Business (excluding the  employees
and medical directors of the Labs Business who were either transferred by MDS to
MDS  Subco on January  1, 2004 or  who remain with  MDS as part  of its national
business). See "The Labs Partnership After the Arrangement".

     As the  99.99% limited  partner  of the  Labs  Partnership, Labco  will  be
entitled  to 99.99% of  the partnership distributions  from the Labs Partnership
(net  of   certain   distributions   to  the   general   partner   for   expense
reimbursements).  Labco will also be  entitled to partnership distributions from
the Blood Products Partnership  pro rata to its  interest in the Blood  Products
Partnership which will be approximately 7% upon completion of the Arrangement.

     On  the Effective Date, Public Shareholders will own not less than 52.5% of
the voting shares and 0.44% of the equity securities of Labco (through ownership
of Labco Class  A Shares) and  MDS will own  not more than  47.5% of the  voting
shares  and 99.56%  of the  equity securities of  Labco (through  ownership of a
combination of Labco  Class A Shares  and Labco Class  B Non-Voting Shares).  As
part  of the  Plan of Arrangement,  New Hemosol  will acquire the  Labco Class C
Shares, which will  be immediately  redeemed by Labco  for aggregate  redemption
proceeds of $16 million and certain other consideration.

OBJECTS

     As part of the Arrangement, the business of Labco will be restricted by its
articles.  The following is a  summary of the corporate  objects of Labco and is
subject to the detailed provisions of Appendix A to the Plan of Arrangement.

     After the Arrangement, Labco  will be a  limited purpose corporation  whose
objective  will be  to (i) maximize  Distributable Cash Flow  (as defined below)
through ownership of the Partnership  Interests, and any property and/or  assets
that  are acquired or received by Labco as a result of a sale, transfer or other
disposition of  the Partnership  Interests or  the liquidation,  dissolution  or
winding-up of the Partnerships, as set out in (a) below, and (ii) distribute all
Distributable Cash Flow to holders of the Labco Class A Shares and Labco Class B
Non-Voting  Shares by  way of dividends  or other distributions,  subject to its
articles and applicable law and provided  that no dividends will be declared  on
the  Labco Class A Shares and the Labco Class B Non-Voting Shares on or prior to
October 31, 2004 (see "-- Description  of Share Capital -- Provisions  Attaching
to  the Labco Class A Shares" and "--  Provisions Attaching to the Labco Class B
Non-Voting Shares").  Labco  will  otherwise be  prohibited  from,  directly  or
indirectly,  carrying  on any  business,  purchasing or  otherwise  acquiring or
selling, transferring or  otherwise disposing  of any assets  or exercising  any
powers other than:

     (a)  holding  the Partnership  Interests and  not selling,  transferring or
          otherwise disposing of all or any part of either Partnership Interest,
          except:

        (i)   in accordance with a sale,  transfer or other disposition  carried
              out  pursuant to the terms  of the partnership agreement governing
              the applicable Partnership; or

        (ii)  on the liquidation,  dissolution or winding-up  of the  applicable
              Partnership, as the case may be, in which case Labco will hold the
              property and/or assets that are acquired or received by Labco as a
              result  of  such  sale,  transfer  or  other  disposition  or such
              liquidation, dissolution  or winding-up  and will  deal with  such
              property and/or assets as the Labco Board considers appropriate in
              the ordinary course of Labco's business;

                                        61


     (b)  performing  its  obligations  and  exercising  its  rights  under  any
          agreements entered into  by Labco in  connection with the  Arrangement
          and  any other agreements entered into by Labco in the ordinary course
          of Labco's business;

     (c)  issuing shares (or rights, warrants, convertible securities or options
          to acquire shares)  for valuable consideration  provided that (i)  any
          such  issuance is consistent  with Labco's articles  and (ii) no Labco
          Class A Shares (or rights, warrants, convertible securities or options
          to acquire such  shares) may  be issued  except in  connection with  a
          stock  dividend,  a  stock split  or  similar event  that  affects all
          holdings of Labco Class A  Shares in the same  manner, on a per  share
          basis;

     (d)  borrowing  money  upon  the  credit  of  Labco  and  granting security
          therefor, for any purpose in the ordinary course of Labco's business;

     (e)  temporarily holding  cash in  accounts  of Canadian  chartered  banks,
          short-term  government debt  or short-term  investment grade corporate
          debt for  the  purposes  of  paying  the  expenses  of  Labco,  making
          dividends  or other distributions to its shareholders and carrying out
          any other activities in the ordinary course of Labco's business;

     (f)  satisfying the obligations, liabilities or indebtedness of Labco; and

     (g)  engaging in any acts or  exercising any powers necessary or  desirable
          to  carry out any  other activities in the  ordinary course of Labco's
          business, including as  provided in Labco's  articles and the  Amended
          and Restated Labco By-Laws.

     In  addition to any other approvals  required by the OBCA, the restrictions
and limitations  on Labco's  objects set  out in  Labco's articles  may only  be
amended,  supplemented, repealed or  otherwise modified by  resolution passed by
the affirmative vote of at  least two-thirds of the votes  cast at a meeting  of
the holders of each class of the issued and outstanding Labco Class A Shares and
Labco  Class B Non-Voting Shares, each voting separately as a class, duly called
for that purpose.

DESCRIPTION OF SHARE CAPITAL

     The following is a summary of the material rights, privileges, restrictions
and conditions  that attach  to the  Labco Class  A Shares,  the Labco  Class  B
Non-Voting  Shares and the Labco Class C  Shares. This summary is subject to the
detailed provisions of the Labco  Share Conditions as set  out in Appendix A  to
the Plan of Arrangement.

AUTHORIZED CAPITAL

     The authorized share capital of Labco will consist of:

     (a)  an  unlimited number  of Labco  Class A  Shares which,  subject to the
          provisions of  Labco's articles,  will  be entitled  to one  vote  per
          share,  provided that  following the Effective  Date, additional Labco
          Class A Shares may only be issued in limited circumstances;

     (b)  an unlimited number of Labco Class B Non-Voting Shares which will  not
          be  entitled  to vote  except as  provided  by law  or as  provided in
          Labco's articles; and

     (c)  that number of Labco Class C Shares equal to the number of outstanding
          Hemosol Shares  at  the  Effective  Time,  which  will  be  redeemable
          preferred  shares with a cumulative dividend  rate of 0.25% per month,
          provided that following the  redemption of the  Labco Class C  Shares,
          the  number of authorized Labco Class C  Shares will be reduced by the
          number so redeemed.

     In addition to  any other approvals  required by the  OBCA, Labco will  not
create  any shares ranking in priority to or  on a parity with the Labco Class A
Shares or the Labco Class B Non-Voting Shares without the prior approval of  the
holders  of  each class  of  the shares  of Labco  by  resolution passed  by the
affirmative vote of at least  two-thirds of the votes cast  at a meeting of  the
holders  of  each class,  voting separately  as  a class,  duly called  for that
purpose.

                                        62


PROVISIONS ATTACHING TO THE LABCO CLASS A SHARES

Dividends

     The holders of Labco Class A  Shares will be entitled to receive  dividends
as and when declared by the Labco Board, out of Distributable Cash Flow, in such
amount  and in  such form  as the  Labco Board  may determine,  provided that no
dividends will be  declared on  or prior  to October  31, 2004.  The payment  of
dividends to holders of Labco Class A Shares will be subject to the preferential
rights  of the  holders of  Labco Class  C Shares  and any  other shares ranking
senior to the Labco Class A Shares.

     All dividends on the Labco Class A Shares and the Labco Class B  Non-Voting
Shares  declared by the Labco  Board will be declared  and paid in equal amounts
per share  on all  Labco Class  A Shares  and Labco  Class B  Non-Voting  Shares
outstanding at the time without preference or distinction.

     Notwithstanding  the above, dividends may be declared and paid on the Labco
Class B Non-Voting Shares in advance of dividends declared and paid on the Labco
Class A  Shares so  long as  the aggregate  amount per  share of  all  dividends
declared and paid on the Labco Class A Shares in any fiscal year of Labco equals
(without regard to the timing of payment of such dividends) the aggregate amount
per  share of all  dividends declared and  paid on the  Labco Class B Non-Voting
Shares in such fiscal year of Labco.

Dissolution

     In the  event  of the  dissolution,  liquidation or  winding-up  of  Labco,
whether  voluntary or involuntary, or any  other distribution of assets of Labco
among its shareholders for the purpose of winding up its affairs, the holders of
the Labco  Class A  Shares  and the  Labco Class  B  Non-Voting Shares  will  be
entitled  to receive the remaining property and assets of Labco in equal amounts
per share  without preference  or  distinction. The  dissolution rights  of  the
holders  of the Labco Class A Shares will  be subject to the prior rights of the
holders of the Labco Class C Shares  and any other shares ranking senior to  the
Labco Class A Shares and the Labco Class B Non-Voting Shares.

Voting Rights

     The  holders of Labco Class A Shares  will be entitled to receive notice of
and to attend  all meetings of  the shareholders  of Labco and,  subject to  the
provisions  of Labco's  articles summarized in  "-- Provisions  Attaching to the
Labco Class B Non-Voting  Shares -- Specified Offer"  below, will have one  vote
for  each Labco Class A Share held at all meetings of the shareholders of Labco,
except meetings at which  only holders of another  specified class or series  of
shares of Labco are entitled to vote separately as a class or series.

PROVISIONS ATTACHING TO THE LABCO CLASS B NON-VOTING SHARES

Dividends

     The  holders of Labco Class B Non-Voting Shares will be entitled to receive
dividends as and  when declared by  the Labco Board,  out of Distributable  Cash
Flow, in such amount and in such form as the Labco Board may determine, provided
that  no dividends will be declared on or prior to October 31, 2004. The payment
of dividends to holders of  Labco Class B Non-Voting  Shares will be subject  to
the  preferential rights of  the holders of  Labco Class C  Shares and any other
shares ranking senior to the Labco Class B Non-Voting Shares.

     All dividends on the Labco Class A Shares and the Labco Class B  Non-Voting
Shares  declared by the Labco  Board will be declared  and paid in equal amounts
per share on all Labco Class A Shares and Labco Class B Non-Voting Shares at the
time outstanding without preference or distinction.

     Notwithstanding the above, dividends may be declared and paid on the  Labco
Class B Non-Voting Shares in advance of dividends declared and paid on the Labco
Class  A  Shares so  long as  the aggregate  amount per  share of  all dividends
declared and paid on the Labco Class A Shares in any fiscal year of Labco equals
(without regard to the timing of payment of such dividends) the aggregate amount
per share of all  dividends declared and  paid on the  Labco Class B  Non-Voting
Shares in such fiscal year of Labco.

                                        63


Dissolution

     In  the  event  of the  dissolution,  liquidation or  winding-up  of Labco,
whether voluntary or involuntary, or any  other distribution of assets of  Labco
among its shareholders for the purpose of winding up its affairs, the holders of
the  Labco  Class B  Non-Voting  Shares and  the Labco  Class  A Shares  will be
entitled to receive the remaining property and assets of Labco in equal  amounts
per  share  without preference  or distinction.  The  dissolution rights  of the
holders of the  Labco Class B  Non-Voting Shares  will be subject  to the  prior
rights  of the holders of the Labco Class  C Shares and any other shares ranking
senior to the Labco Class B Non-Voting Shares and the Labco Class A Shares.

Voting Rights

     SUBJECT TO  APPLICABLE LAW  AND ANY  OTHER PROVISIONS  OF THE  ARTICLES  OF
LABCO,  THE HOLDERS OF THE LABCO CLASS  B NON-VOTING SHARES WILL NOT BE ENTITLED
TO RECEIVE NOTICE OF, NOR TO ATTEND NOR VOTE AT ANY MEETINGS OF THE SHAREHOLDERS
OF LABCO. In the event that holders  of the Labco Class B Non-Voting Shares  are
entitled  by law or  the articles of  Labco to vote  at a meeting  of holders of
Labco Class B Non-Voting Shares, the holders of Labco Class B Non-Voting  Shares
will have one vote for each Labco Class B Non-Voting Share held.

Specified Offer

     The  articles of Labco require that a  person or group wishing to acquire a
majority of the Labco Class A Shares comply with certain conditions precedent as
set out below.

     An Offeror (as  defined below)  may not acquire  any Labco  Class A  Shares
pursuant  to an Offer to Acquire (as defined below) Labco Class A Shares made by
an Offeror where  the number of  Labco Class A  Shares subject to  the Offer  to
Acquire  (the "Specified Offer Shares"), together with the Offeror's Labco Class
A Shares  on  the date  of  such Offer  to  Acquire (the  "Offer  Date"),  would
constitute  in the aggregate more  than 50% of the  total issued and outstanding
Labco Class A Shares on the Offer Date (such Offer to Acquire being referred  to
as  a "Specified Offer"), without first  complying with the provisions specified
below.

     Prior to, and as a condition precedent to, the acquisition by an Offeror of
any Labco  Class  A  Shares under  a  Specified  Offer, the  Offeror  will  make
concurrent  offers to acquire Labco Class A  Shares and Labco Class B Non-Voting
Shares for consideration for  each Labco Class  A Share and  each Labco Class  B
Non-Voting  Share equal to the Bid Price  (as defined below), on the same terms,
except as to  the number  of shares  subject to  the offers,  which offers  will
comply  with the provisions  of applicable securities  legislation relating to a
formal take-over bid  (whether or  not such  offers are  required by  law to  so
comply) (the "Required Bids"):

     (a)  to  all holders of Labco Class A Shares for such number of Labco Class
          A Shares as is equal to the number of Specified Offer Shares; and

     (b)  to all holders of Labco Class  B Non-Voting Shares for such number  of
          Labco Class B Non-Voting Shares that is equal to the lesser of:

        (i)   A  x B, where A equals the number of Labco Class A Shares that are
              subject to a  Specified Offer, together  with the Offeror's  Labco
              Class  A  Shares,  divided  by  the  total  number  of  issued and
              outstanding Labco Class A  Shares on the Offer  Date and B  equals
              the   total  number  of  issued  and  outstanding  Labco  Class  B
              Non-Voting Shares on the date that the Required Bids are made; and

        (ii)  the number  of issued  and outstanding  Labco Class  B  Non-Voting
              Shares  excluding those that are beneficially owned, or over which
              control or direction is exercised,  on the date that the  Required
              Bids  are made (including any combination of the foregoing) by the
              Offeror;

     provided that:

     (c)  no shares may be  taken up or  paid for under  either of the  Required
          Bids,  unless all  shares tendered  to each  of the  Required Bids are
          taken up and paid for concurrently; and

                                        64


     (d)  the Offeror will  issue a press  release following the  expiry of  the
          Required  Bids and one business day prior to the take-up of any shares
          tendered to the Required Bids, which press release will disclose:

        (i)   the approximate number of Labco Class  A Shares and Labco Class  B
              Non-Voting Shares tendered to the Required Bids; and

        (ii)  whether  a  sufficient number  of Labco  Class  A Shares  has been
              tendered to the Required Bids such that the Offeror would acquire,
              on take-up  and  payment  for  such  shares,  when  added  to  the
              Offeror's  Labco Class A Shares on  the date of take-up, more than
              50% of the total  issued and outstanding Labco  Class A Shares  on
              the date of take-up.

     In  the event that  an Offeror acquires, directly  or indirectly, more than
50% of the total issued and outstanding Labco Class A Shares in violation of the
foregoing requirements, then,  effective on the  completion of such  acquisition
and  during such time  that the Offeror's  Labco Class A  Shares constitute more
than 50% of the  total issued and  outstanding Labco Class  A Shares, the  total
number  of votes attaching to the Offeror's  Labco Class A Shares will equal the
difference between: (a) the total number of issued and outstanding Labco Class A
Shares, and (b)  the number  of the  Offeror's Labco  Class A  Shares, and,  for
greater certainty, the Labco Class A Shares other than the Offeror's Labco Class
A Shares will continue to have one vote per share.

     For  purposes of  this section  of the  Circular entitled  "Labco After the
Arrangement":

     (a)  "BID PRICE"  means the  consideration for  each Labco  Class A  Common
          Share  and each Labco  Class B Non-Voting Share  offered to holders of
          Labco Class A Shares and holders  of Labco Class B Non-Voting  Shares,
          respectively, under the Required Bids, which consideration will have a
          fair  market value  of not  less than the  average of  the fair market
          value of a Class A Common Share on the date that the Required Bids are
          made as determined in writing by two nationally recognized  investment
          banking  firms retained  by the Offeror  for the  purpose of providing
          such valuation in connection with the Required Bids;

     (b)  "CASH FLOW",  for any  Distribution Period  of Labco,  will equal  the
          following:

        (i)   all  cash or cash equivalents which  are received by Labco in such
              Distribution   Period,   including,   without   limitation,    any
              distributions received by Labco from the Partnerships; plus

        (ii)  all  cash  or  cash equivalents  received  by Labco  in  any prior
              Distribution Period  to  the  extent  not  previously  distributed
              unless  such amounts have been  set aside by the  Labco Board in a
              prior Distribution Period for distribution  to the holders of  the
              Labco Class A Shares and/or the Labco Class B Non-Voting Shares in
              a  subsequent Distribution Period, in  which case such amounts set
              aside shall not be included in Cash Flow; less

        (iii) the Cash Flow Deductions;

     (c)  "CASH FLOW DEDUCTIONS", for any Distribution Period of Labco, means:

        (i)   all costs, expenses and  debts of Labco which,  in the opinion  of
              the  Labco Board, may reasonably be  considered to have accrued or
              become owing in respect of, or which relate to, such  Distribution
              Period  or  a prior  Distribution Period  if  not deducted  in the
              calculation of Cash Flow for such prior period;

        (ii)  any tax liability  of Labco in  respect of, or  which relates  to,
              such Distribution Period; and

        (iii) any  cash or  cash equivalent  which is  received by  Labco in the
              Distribution Period which  the Labco Board  has determined to  set
              aside  for distribution  to the  holders of  Labco Class  A Shares
              and/or  Labco   Class  B   Non-Voting  Shares   in  a   subsequent
              Distribution Period;

     (d)  "DISTRIBUTABLE CASH FLOW" for, or in respect of, a Distribution Period
          of Labco shall be the Cash Flow of Labco for such Distribution Period,
          together  with any Cash Flow set  aside in a prior Distribution Period
          for distribution to the holders of the Labco Class A Shares and/or the
          Labco Class B  Non-Voting Shares in  a subsequent Distribution  Period
          which  the Labco Board has determined  to distribute in respect of the
          current Distribution Period, less any amount which the Labco Board may
          reasonably consider to be necessary to provide for the payment of  any
          costs  and repayment of debts  which have been or  will be incurred in
          the activities and operations  of Labco in addition  to the Cash  Flow
          Deductions;
                                        65


     (e)  "DISTRIBUTION  PERIOD" means each month in each calendar year from and
          including the first  day thereof  and to  and including  the last  day
          thereof,  provided that the  first Distribution Period  shall begin on
          (and include) the Effective  Date and shall end  on (and include)  the
          last day of the month in which the Effective Date occurs;

     (f)  "OFFER TO ACQUIRE" includes:

        (i)   an  offer to  purchase, a public  announcement of  an intention to
              make an offer to purchase, or a solicitation of an offer to  sell,
              securities; and

        (ii)  the  receipt of an  offer to sell securities,  whether or not such
              offer to sell has been solicited,

        or any combination thereof,  and the Person receiving  an offer to  sell
        will  be deemed to be making an Offer to Acquire to the Person that made
        the offer to sell;

     (g)  "OFFEROR" means a Person that makes an Offer to Acquire Labco Class  A
          Shares,  and includes any Persons related  to such Person for purposes
          of the  Tax Act  or any  other Person  that is  acting jointly  or  in
          concert  with such Person or who would, together with such Person (and
          other Persons), constitute a group  for purposes of subsection  111(5)
          of the Tax Act;

     (h)  "OFFEROR'S  LABCO CLASS  A SHARES", on  any date, means  the number of
          Labco Class A  Shares beneficially owned,  directly or indirectly,  or
          over   which  control   or  direction  is   exercised  (including  any
          combination of the  foregoing), on  the relevant date  by the  Offeror
          either alone or together with Persons who would constitute a group for
          purposes of subsection 111(5) of the Tax Act; and

     (i)   "PERSON"  includes an individual,  body corporate, partnership, joint
           venture, trust,  association,  unincorporated  organization,  or  any
           other  entity  recognized by  law or  considered to  be a  person for
           purposes of the Tax Act.

PROVISIONS ATTACHING TO THE LABCO CLASS C SHARES

Dividends

     The holders of the Labco Class C  Shares, in priority to the Labco Class  A
Shares  and the  Labco Class  B Non-Voting Shares  and any  other shares ranking
junior to the Labco  Class C Shares,  will be entitled to  receive, as and  when
declared by the Labco Board out of the funds of Labco properly applicable to the
payment  of dividends, fixed preferential cumulative  cash dividends at the rate
of 0.25% of the Class C Redemption  Amount (as defined below) per month  payable
monthly  within ten days  of the end  of each month  in each year.  The "Class C
Redemption Amount" for each Labco Class  C Share will be determined by  dividing
$70,672,000  minus the value  of the Hemosol  Convertible Securities and Hemosol
Options assumed by New Hemosol  under the Plan of  Arrangement by the number  of
issued  and outstanding Labco  Class C Shares, subject  to adjustment in certain
circumstances. The aggregate Class C Redemption Amount (which will be determined
by multiplying the total number of  issued and outstanding Labco Class C  Shares
by  the Class C  Redemption Amount) will be  deemed to be  reduced, on a dollar-
for-dollar basis  and from  time to  time, by  an amount  equal to  any  amounts
released  from escrow  and paid  to Labco  pursuant to  the terms  of the Escrow
Agreement. Dividends  on the  Labco Class  C  Shares will  accrue from  but  not
including  the date of issue  of the respective Labco Class  C Shares. If on any
dividend payment date the dividend payable is not paid in full on all the  Labco
Class  C Shares then  issued and outstanding,  the dividends or  the unpaid part
thereof will be paid on a subsequent date determined by the Labco Board on which
Labco  will  have  sufficient  funds  properly  applicable  to  the  payment  of
dividends.  The holders of the Labco Class C  Shares will not be entitled to any
dividends other than  or in  excess of  the fixed  preferential cumulative  cash
dividends specified above.

     Unless  all  dividends  on  the  Labco  Class  C  Shares  then  issued  and
outstanding, up to  and including  the dividend  payable on  the last  preceding
dividend  payment  date, will  have  been declared  and  paid or  set  apart for
payment, the Labco Board will  not (i) declare or pay  or set apart for  payment
any  dividends on  the Labco  Class A  Shares and  the Labco  Class B Non-Voting
Shares or on any shares of any other class of Labco ranking junior to the  Labco
Class  C Shares or (ii) call for redemption or purchase or otherwise acquire for
value less than all  the then outstanding  Labco Class C  Shares or purchase  or
otherwise  acquire for value any Labco Class  A Shares, Labco Class B Non-Voting
Shares or any shares  of any other  class of Labco ranking  junior to the  Labco
Class C Shares.

                                        66


Dissolution

     In  the event  of the  dissolution, liquidation  or winding-up  of Labco or
other distribution of assets of Labco  among Labco shareholders for the  purpose
of  winding up  its affairs,  the holders of  the Labco  Class C  Shares will be
entitled to receive from the assets and property of Labco for each Labco Class C
Share held by them respectively the Class C Redemption Amount together with  all
accrued  and unpaid  preferential cumulative  cash dividends  thereon (which for
such purpose will be calculated as if  such dividends were accruing from day  to
day  for the period from the expiration  of the last period for which cumulative
dividends have been paid  up to but excluding  the date of distribution)  before
any  amount will be paid  or any assets or property  of Labco distributed to the
holders of any Labco Class A Shares,  Labco Class B Non-Voting Shares or  shares
of  any other class ranking junior to the Labco Class C Shares. After payment to
the holders of the  Labco Class C Shares  of the amounts so  payable to them  as
above  provided, they will not be entitled  to share in any further distribution
of the assets or property of Labco.

Redemption by Labco

     Subject to the provisions  of subsection 32(2) of  the OBCA, Labco will  be
entitled to redeem at any time all but not less than all of the then outstanding
Labco  Class C  Shares on  payment, in  cash or  in kind,  for each  share to be
redeemed, of the Class C Redemption Amount together with all accrued and  unpaid
preferential  cumulative cash dividends thereon (which  for such purpose will be
calculated as if the  dividends on the  Labco Class C Shares  to be so  redeemed
were  accruing from day  to day for the  period from the  expiration of the last
period for which  cumulative dividends have  been paid up  to but excluding  the
date of such redemption).

     On  the date determined by Labco for redemption, Labco will pay or cause to
be paid to the order of each registered holder of the Labco Class C Shares to be
redeemed the Class C Redemption Amount  for each Labco Class C Share  registered
in  the name of  such holder on  presentation and surrender  of the certificates
representing the Labco Class C Shares redeemed at the registered office of Labco
or any other place designated by Labco. On and after the date of redemption, the
Labco Class  C  Shares  called for  redemption  will  cease to  be  entitled  to
dividends  and the holders thereof  will not be entitled  to exercise any of the
rights of  shareholders  in  respect  thereof unless  payment  of  the  Class  C
Redemption  Amount  in respect  thereof, together  with  all accrued  and unpaid
preferential  cumulative  cash  dividends  thereon,   will  not  be  made   upon
presentation of certificates in accordance with the foregoing, in which case the
rights of the shareholders will remain unaffected.

     Labco  will have the right at any time  on and after the date determined by
Labco for redemption of the Labco Class C Shares to deposit the redemption price
of the shares  so called  for redemption  to a  special account  in a  specified
chartered  bank  or a  specified trust  company  in Canada,  to be  paid without
interest to or  to the order  of the respective  holders of such  Labco Class  C
Shares  called for  redemption upon presentation  and surrender to  such bank or
trust company of the certificates representing the same. Upon such deposit being
made, the Labco Class C  Shares in respect whereof  such deposit will have  been
made  will be deemed to be redeemed and  all rights of the holders thereof after
such deposit will be limited  to receiving without interest their  proportionate
part  of the total  Class C Redemption Amount  so deposited against presentation
and surrender of the said certificates  held by them respectively. Any  interest
allowed on any such deposit will belong to Labco.

Voting Rights

     Subject  to  applicable law  and any  other provisions  of the  articles of
Labco, the holders  of Labco  Class C  Shares will  not be  entitled to  receive
notice  of, nor to attend nor vote at any meetings of the shareholders of Labco.
However, in the event that holders of Labco Class C Shares are entitled to  vote
at  a meeting of holders of  Labco Class C Shares, the  holders of Labco Class C
Shares will have one vote for each Labco Class C Share held.

Priority

     The Labco Class A Shares and the Labco Class B Non-Voting Shares will  rank
on  parity and junior to the Labco Class C Shares and will be subordinate in all
respects to the rights, privileges, restrictions and conditions attaching to the
Labco Class C Shares.

                                        67


PRINCIPAL SHAREHOLDERS

     Upon completion of the  Arrangement, Public Shareholders will  collectively
hold  not less than 52.5% Labco Class  A Shares representing 0.44% of the equity
securities of Labco  and MDS will  hold, directly or  indirectly, not more  than
47.5%  of the  Labco Class  A Shares and  100% of  the Labco  Class B Non-Voting
Shares, collectively representing 99.56% of  the equity securities and not  more
than 47.5% of the voting securities of Labco.

DIRECTORS AND OFFICERS

     Pursuant  to the Plan of Arrangement, new  directors will be elected to the
Labco Board. The following table sets  out the name, municipality of  residence,
principal  occupation and positions  that will be  held in Labco  of each of the
directors and officers of Labco if  the Arrangement Resolution is passed by  the
Securityholders and the Arrangement becomes effective.

<Table>
<Caption>
NAME AND MUNICIPALITY OF RESIDENCE     POSITION                     PRINCIPAL OCCUPATION
- ----------------------------------     --------                     --------------------
                                                              

Edward E. McCormack
  Toronto, ON........................  Director, Chairman           Business Advisor and Independent
                                                                    Director (since June 2003); prior
                                                                    thereto, President of Almad Investments
                                                                    and Beaver Power Inc. (January 2000 to
                                                                    June 2003); CFO of Novopharm Inc.
                                                                    (October 1987 to December 1999)

Mitchell J. Kostuch
  Toronto, ON........................  Director                     President, Kostuch Publications (a
                                                                    publisher of business magazines)

Wilfred G. Lewitt
  Toronto, ON........................  Director                     Chairman, MDS (since April 1996)

Edward K. Rygiel
  Toronto, ON........................  Director                     Executive Chairman, MDS Capital Corp. (a
                                                                    health related venture capital firm)
                                                                    (since May 2003) and Executive Vice
                                                                    President, MDS; prior thereto, President
                                                                    and CEO, MDS Capital Corp. (December
                                                                    1994 to April 2003)

John Anderson
  Toronto, ON........................  President, Chief Executive   Consultant (since December 2001); prior
                                       Officer and Chief            thereto, CFO, Energenius, Inc. (July
                                       Financial Officer            2000 to December 2001); prior thereto,
                                                                    Consultant

Peter Brent
  Toronto, ON........................  Secretary                    Senior Vice President, General Counsel
                                                                    and Corporate Secretary, MDS (since
                                                                    2002); prior thereto, Vice President,
                                                                    General Counsel and Corporate Secretary,
                                                                    MDS (1998 - 2002)
</Table>

CHANGE OF FISCAL YEAR-END

     Under  the Arrangement, Labco will change its fiscal year-end from December
31 to October 31. This  will help to minimize  Labco's earnings and profits  for
its  2004 fiscal  year, which  would help  to reduce  the United  States federal
income tax impact of  the Arrangement upon Shareholders  resident in the  United
States.  While the change in  the fiscal year-end for  tax purposes requires the
consent of CCRA, such consent is not expected to be withheld.

                                        68


REGISTERED OFFICE

     The registered  office  of  Labco  will  be  100  International  Boulevard,
Toronto, Ontario, M9W 6J6.

AUDITORS, TRANSFER AGENT AND REGISTRAR OF LABCO

     The  auditors of  Labco will be  Ernst & Young  LLP, Chartered Accountants,
Toronto.

     The registrar and transfer agent for the Labco Class A Shares and the Labco
Class B Non-Voting Shares will be  Computershare Trust Company of Canada at  its
principal office in Toronto.

MATERIAL CONTRACTS OF LABCO

     Following  the  Arrangement, Labco  will  not be  a  party to  any material
contracts other  than the  Arrangement Agreement  and the  following  additional
contracts  to  be  entered into  by  Labco  as contemplated  by  the Arrangement
Agreement and as further disclosed under "The Arrangement":

     (a)  the Blood Products Contribution Agreement;

     (b)  the Blood Products Partnership Agreement;

     (c)  the Partnership Interest Transfer Agreement; and

     (d)  the Labs Partnership Agreement.

     The form of each of the foregoing agreements, other than the Blood Products
Contribution Agreement  and  the  Partnership Interest  Transfer  Agreement  are
Exhibits  to the  Arrangement Agreement,  which is  attached hereto  as Annex D.
Copies of  the  form  of  the Blood  Products  Contribution  Agreement  and  the
Partnership  Interest  Transfer  Agreement  may  be  inspected  during  ordinary
business hours at the offices of Hemosol prior to the Effective Date.

INTERESTS OF MANAGEMENT AND OTHERS IN MATERIAL TRANSACTIONS

     Following the Arrangement,  MDS Subco will  be the general  partner of  the
Labs  Partnership. As general partner,  MDS Subco will have  the power to manage
and control  the  business  and assets  of  the  Labs Partnership  and  will  be
reimbursed  for the reasonable  expenses and costs that  it incurs in connection
with the performance of its duties  as general partner of the Labs  Partnership.
MDS Subco will also receive 0.01% of the net income of the Labs Partnership. See
"The  Labs Partnership After  the Arrangement --  General" and "-- Distributions
and Allocation of Profit and Loss".

     Following the Arrangement, MDS  will provide support  services to the  Labs
Partnership   and  will  receive  management  fees  and  reimbursement  for  its
reasonable out-of-pocket  costs  for  providing such  services.  See  "The  Labs
Partnership After the Arrangement -- Labs Management Agreement".

SELECTED LABCO PRO FORMA FINANCIAL INFORMATION

     Annex  J to this  Circular sets out  the unaudited pro  forma statements of
income of Labco for the year ended December 31, 2003 and the unaudited pro forma
balance sheet data  at December  31, 2003,  each of  which gives  effect to  the
Arrangement  and certain other transactions, which  either have occurred or will
probably occur subsequent to December 31, 2003. In the opinion of management  of
Hemosol and MDS, all significant adjustments necessary to reflect the effects of
the  Arrangement have been made. Such  unaudited pro forma financial information
is derived  from the  Audited  Financial Statements  and the  unaudited  summary
financial  information of  the Labs  Business and  have been  prepared solely to
comply with  applicable  disclosure  rules  under the  U.S.  Exchange  Act.  See
"Regulatory Matters -- Financial Information Exemption."

     The  summary  unaudited pro  forma financial  information is  presented for
comparative purposes  only and  is not  necessarily indicative  of what  Labco's
actual  future results of operations and financial position will be. The summary
unaudited pro forma financial  information should be  read in conjunction  with,
and  is qualified in its  entirety by, the Audited  Financial Statements and the
unaudited summary  financial  information  of the  Labs  Business.  THE  SUMMARY
UNAUDITED  PRO FORMA FINANCIAL INFORMATION HAS NOT BEEN REVIEWED BY THE AUDITORS
OF MDS OR HEMOSOL AS TO COMPILATION OR OTHERWISE.

                                        69


              THE BLOOD PRODUCTS PARTNERSHIP AFTER THE ARRANGEMENT

     As at the date hereof, the Blood Products Partnership has not been  formed.
The  Blood Products Partnership will be formed  prior to the Effective Date and,
pursuant to the  Arrangement, the  Blood Products Partnership  will acquire  the
Blood  Products Business from  Hemosol. The disclosure  herein has been prepared
assuming the completion  of the  Arrangement. The following  description of  the
Blood Products Partnership is a summary only and is qualified in its entirety by
reference  to the full text of the  Blood Products Partnership Agreement, a copy
of which is attached to this Circular as  Exhibit 5 to Annex D, which should  be
read carefully in its entirety.

GENERAL

     The  Blood Products Partnership will be  a limited partnership formed under
the terms of the  Blood Products Partnership Agreement  pursuant to the  Limited
Partnerships  Act (Ontario). The purpose of  the Blood Products Partnership will
be to carry on the Blood Products Business and to engage in such other  business
as may be determined by New Hemosol from time to time.

     The  general partner of the Blood Products Partnership will be New Hemosol.
As general partner, New Hemosol  will have the power  to manage and control  the
business and assets of the Blood Products Partnership. New Hemosol may engage in
other  business of any kind, provided it is not in competition with the business
of the Blood Products Partnership.

     Labco  will  be  the  initial   limited  partner  of  the  Blood   Products
Partnership.  Labco  will not  take part  in  the control  or management  of the
business of the Blood Products Partnership.

     The economic interest  of the  partners in the  Blood Products  Partnership
will  be  divided into  and  represented by  units.  On the  Effective  Date and
following completion of the Arrangement, New Hemosol will hold approximately 93%
of the outstanding units of the  Blood Products Partnership and Labco will  hold
approximately 7% of the outstanding units of the Blood Products Partnership.

BUSINESS OF THE BLOOD PRODUCTS PARTNERSHIP

     Under  the Arrangement, at the Effective Time, Hemosol will transfer to the
Blood Products Partnership  all of  the Blood  Products Assets  pursuant to  the
Blood  Products Contribution Agreement  and the Blood  Products Partnership will
assume all of the Blood Products Liabilities, including the Bank Loan,  pursuant
to  the Blood Products Contribution Agreement. As  a result, as of the Effective
Date, the Blood Products Partnership will carry on the Blood Products  Business,
which is the business currently carried on by Hemosol. See "Hemosol Prior to the
Arrangement".

     As  the Blood Products  Partnership will assume  the Bank Loan,  all of the
Blood Products Assets will be  subject to a security  interest in favour of  the
Bank as security for the Bank Loan.

DISTRIBUTIONS AND ALLOCATION OF PROFIT AND LOSS

     Net  income or net loss of the Blood Products Partnership will be allocated
to the partners of the Blood Products Partnership in proportion to the number of
units held by each partner at the end of a fiscal year and distributions will be
made to the partners of  the Blood Products Partnership  in such amounts and  at
such  times as determined by New Hemosol in proportion to the allocations of net
income.

REIMBURSEMENT OF GENERAL PARTNER EXPENSES

     New Hemosol will be  reimbursed by the Blood  Products Partnership for  all
reasonable costs and expenses incurred by it in the performance of its duties as
general partner of the Blood Products Partnership.

NO REMOVAL OF GENERAL PARTNER

     The  limited partners of the Blood  Products Partnership may not remove New
Hemosol as the general  partner of the Blood  Products Partnership. New  Hemosol
may  not resign as the general partner  of the Blood Products Partnership except
in connection  with the  transfer of  all of  its units  of the  Blood  Products
Partnership.

                                        70


TERM

     The  Blood  Products Partnership  will  continue indefinitely  and  will be
dissolved on the bankruptcy of, or similar events in respect of, New Hemosol  or
on the agreement of all partners to dissolve the Blood Products Partnership.

TRANSFER OF UNITS

     If  a limited partner of the Blood Products Partnership desires to transfer
any of the units  of the Blood  Products Partnership held by  it, it must  first
make  an offer to New Hemosol to sell  such units to New Hemosol. If New Hemosol
does not accept such offer, the limited partner may sell such offered units to a
third party on terms not  more favourable to the third  party than the terms  at
which such units were offered to New Hemosol.

     If  at any time a limited partner, including Labco, holds 1% or less of all
of the outstanding units of the Blood Products Partnership, New Hemosol has  the
right  to purchase all  of the units  of the Blood  Products Partnership held by
such limited partner at a price equal to the fair market value of such units.

     If New Hemosol proposes to transfer all of its units of the Blood  Products
Partnership  to a  third party,  such transfer may  not be  completed unless the
third party  purchaser  extends its  offer  to  purchase units  of  the  limited
partners  of the Blood Products Partnership on  the same terms and conditions as
those applicable  to New  Hemosol. If  a limited  partner does  not accept  such
offer,  New Hemosol may require such limited partner to sell all of its units of
the Blood Products Partnership to the third party purchaser at the same time and
on the same terms and conditions as those applicable to New Hemosol.

EMPLOYEES

     Upon completion of  the Arrangement,  the Blood  Products Partnership  will
employ  all of Hemosol's  current employees, except  the three current executive
officers of Hemosol, being Lee Hartwell, President, Chief Executive Officer  and
Chief  Financial Officer, Dirk Alkema, the  Vice President, Operations and David
Bell,  Vice  President,  Drug  Discovery,  and  except  Pardip  Gill,  Hemosol's
controller,  each of whom will be employed  by New Hemosol. All of the employees
of the  Blood  Products Partnership  will  be employed  on  the same  terms  and
conditions  as their employment with Hemosol  immediately prior to the Effective
Date.

FINANCIAL INFORMATION

     The Audited Financial  Statements which  are incorporated  by reference  in
this  Circular incorporate the  financial results and  financial position of the
Blood Products  Business which,  after completion  of the  Arrangement, will  be
carried  out by the Blood  Products Partnership. Financial information regarding
Hemosol is included  in the  Annual Financial Statements  and in  the pro  forma
financial  statements for New  Hemosol as set  out in Annex  I. See "New Hemosol
After the Arrangement -- Selected New Hemosol Historical and Pro Forma Financial
Information".

                                        71


                   THE LABS PARTNERSHIP AFTER THE ARRANGEMENT

     As at the date hereof, the Labs  Partnership has not been formed. The  Labs
Partnership  will be  formed prior  to the Effective  Date and,  pursuant to the
Arrangement, the Labs  Partnership will acquire  the Labs Assets  from MDS.  The
disclosure  herein has been prepared assuming the completion of the Arrangement.
The following  description of  the Labs  Partnership is  a summary  only and  is
qualified  in its entirety by reference to the full text of the Labs Partnership
Agreement, a copy of which is attached to this Circular as Exhibit 7 to Annex D,
and the Labs Management Agreement, a copy of which is attached to this  Circular
as Exhibit 8 to Annex D, each of which should be read carefully in its entirety.

GENERAL

     The  Labs Partnership will be a  limited partnership formed under the terms
of the  Labs Partnership  Agreement  pursuant to  the Limited  Partnerships  Act
(Ontario).  The purpose of  the Labs Partnership  will be to  operate a clinical
laboratory services business in Ontario. The  Labs Partnership may not carry  on
any other business.

     The  general partner of the Labs Partnership  will be MDS Subco. As general
partner, MDS Subco will have  the power to manage  and control the business  and
assets  of  the Labs  Partnership. MDS  Subco  will provide  or arrange  for the
provision of  personnel who  are properly  skilled and  trained to  operate  and
manage the business of the Labs Partnership.

     Upon  completion of the  Arrangement, Labco will be  the limited partner of
the Labs Partnership. Labco will not take  part in the control or management  of
the business of the Labs Partnership.

     The  economic interest of the limited partners in the Labs Partnership will
be divided into and represented by limited partner units. On the Effective  Date
following  completion of the Arrangement, Labco will hold all of the outstanding
limited partner units of the Labs Partnership.

DISTRIBUTIONS AND ALLOCATION OF PROFIT AND LOSS

     The net  income  of the  Labs  Partnership for  each  fiscal year  will  be
allocated to the partners as follows:

     (a)  first,  100% will be allocated  to MDS Subco until  it has received an
          aggregate amount equal to all  reasonable expenses and costs  incurred
          by  it during such  fiscal year in connection  with the performance of
          its duties as general partner; and

     (b)  thereafter, all limited partners of record  at the end of such  fiscal
          year  will  be  allocated  99.99%  of  the  remaining  net  income  in
          proportion to the number of units held and MDS Subco will be allocated
          0.01% of the remaining net income.

     Net loss of the Labs Partnership will  be allocated to the partners of  the
Labs Partnership as described in (b) above.

     Distributions  will be made to the partners of the Labs Partnership in such
amounts and  at such  times as  determined by  MDS Subco  in proportion  to  the
allocations of net income, provided, however, that the Labs Partnership will not
make any distributions on or prior to October 31, 2004.

     Except for the loan of $16 million to Labco referred to in "The Arrangement
- --  Transaction Steps Under the Plan  of Arrangement", the Labs Partnership will
not lend  any  funds  to Labco  on  or  prior  to October  31,  2004.  The  Labs
Partnership will not lend any funds to MDS Subco or affiliates thereof.

REMOVAL OF GENERAL PARTNER

     The  limited partners of the Labs Partnership may, at any time if MDS Subco
is in material default of its  obligations under the Labs Partnership  Agreement
and  such default has continued  for more than 60  days after notice thereof, by
resolution passed  by  limited partners  holding  more than  two-thirds  of  the
limited  partner  units of  the Labs  Partnership, remove  MDS Subco  as general
partner.

TERM

     The term of  the Labs  Partnership will  be a  minimum period  of 15  years
unless  the  Labs  Partnership  is  dissolved  earlier  due  to  the  removal or
resignation of MDS Subco as general partner with no appointment of a replacement
general partner, the  bankruptcy of  or similar events  in respect  of the  Labs
Partnership  or the unanimous agreement of the partners of the Labs Partnership.
Following the  minimum period  of 15  years, the  limited partners  of the  Labs
                                        72


Partnership  may dissolve the  Labs Partnership by  resolution passed by limited
partners holding more than two-thirds of  the limited partner units of the  Labs
Partnership.

U.S. TAX ELECTION

     The  Labs Partnership will make an election  to be treated as a corporation
for U.S. federal income tax purposes.  Accordingly, for U.S. federal income  tax
purposes,  Labco  and MDS  Subco will  be  treated as  shareholders of  the Labs
Partnership.

LABS MANAGEMENT AGREEMENT

     The Labs Partnership will enter into the Labs Management Agreement with MDS
pursuant to which  MDS will provide  support services to  the Labs  Partnership,
including   information  technology  services,  financial  services,  purchasing
and/procurement services,  human  resources services,  communications  services,
real  estate services,  regulatory compliance services  and government relations
services.

     The Labs Partnership  will pay  to MDS  an annual  management fee,  payable
monthly  in advance, equal to MDS's  reasonable and documented cost of providing
the support services. In addition, the  Labs Partnership will reimburse MDS  for
all   reasonable  out-of-pocket  expenses  incurred  in  providing  the  support
services.

     MDS may terminate the Labs Management Agreement upon 120 days' prior notice
or immediately  in the  event of  the removal  or resignation  of MDS  Subco  as
general partner of the Labs Partnership.

TRANSFER OF UNITS

     Labco  will  be able  to transfer  its  limited partner  units of  the Labs
Partnership provided that it  complies with certain  formal requirements in  the
Labs Partnership Agreement.

     Pursuant  to the  Partnership Interest  Transfer Agreement,  (i) Labco will
grant to  MDS a  right  of first  refusal in  respect  of the  Labs  Partnership
Interest  which right will be exercisable if  Labco receives a bona fide written
offer from a  third party  to purchase the  Labs Partnership  Interest and  (ii)
Labco  will grant an option to MDS to purchase the Labs Partnership Interest for
fair market value if any steps are taken to wind up the Labs Partnership or  the
Labs  Partnership  proposes to  sell  all or  substantially  all of  its assets,
otherwise than in the ordinary course of business.

BUSINESS OF THE LABS PARTNERSHIP

OVERVIEW OF MDS AND THE LABS BUSINESS

     MDS is  the  largest  health  and life  sciences  company  in  Canada  with
consolidated  revenues  for  the fiscal  year  ended  October 31,  2003  of $1.8
billion. MDS,  through its  operating divisions,  is involved  in a  variety  of
businesses  related  to  the  health  and  life  sciences  industry,  including:
laboratory testing, imaging agents  for nuclear medicine testing,  sterilization
systems  for medical and consumer products,  research services for discovery and
development of drugs, analytical instruments to assist in the development of new
drugs,  medical/surgical   supplies   and  proteomics-enabled   drug   discovery
technology.

     Since  its inception, laboratory services have  formed a major component of
MDS's consolidated  business. In  Canada, MDS  currently operates  and  supports
laboratory  services in the provinces of  Ontario, Quebec, Manitoba, Alberta and
British  Columbia.  In  Ontario,  the  Labs  Business  principally  consists  of
conducting   a  wide  range  of  laboratory   tests  requested  by  health  care
professionals at various locations throughout  the Province. Upon completion  of
the  Arrangement,  the  Labs  Partnership will  continue  the  Labs  Business in
Ontario.

Overview of Laboratory Services in Ontario

     Laboratory services are  an important  element of the  Ontario health  care
system.  Laboratory  services  include  both  clinical  testing  and  anatomical
pathology testing. Clinical testing is performed on bodily specimens,  including
blood  and urine, while anatomical pathology testing is performed on cytological
specimens, including tissue and human  cells. Laboratory services are  conducted
at  the request of health care professionals  in furtherance of the diagnosis of
disease and the guidance of patient treatments.

     Laboratory  services  in  Ontario  are  provided  both  by  private  sector
community-based  service providers  and public  sector providers  such as public
health laboratories and hospital  laboratories. Public health laboratories  have
generally  concentrated on epidemiological matters, such  as the tracking of the
spread of communicable diseases,
                                        73


while  hospital  laboratories  generally  provide  laboratory  services  to  the
hospital  in which  it is  located. Private  sector community-based laboratories
("Community Laboratories") provide services  to patients receiving care  outside
of hospitals.

     Laboratories  in Ontario  are required to  hold licences issued  by the MOH
which determine the nature of the tests that can be carried out at each facility
and govern the  ability of the  operator to draw  samples for testing  purposes.
Licences  are for a limited term (usually one year) and are renewable subject to
MOH approval. See "-- Regulatory Matters" below.

     Laboratory services  in  Ontario are  generally  paid for  by  the  Ontario
provincial  government. Community  Laboratories in  Ontario are  compensated for
performing most laboratory  services by  billing the MOH  on a  fee for  service
basis  for those services covered by the MOH, with the fees being established by
a government fee schedule. Fees for laboratory services that are not covered  by
the  MOH are billed directly to patients. The  MOH has both (i) an industry cap,
which limits  the  total amount  that  will be  paid  in the  aggregate  to  the
Community   Laboratories  for  services  performed  in  the  Ontario  provincial
government's fiscal year  and (ii) the  corporate cap, which  limits the  amount
each  Community Laboratory  service provider  can individually  be paid  for the
services it performs in a fiscal year. The corporate cap is allocated among  the
market  participants on  the basis  of market  share. If  a Community Laboratory
service provider does not perform sufficient services to be able to bill the MOH
for the total amount of  that laboratory's cap in any  one fiscal year, the  MOH
will  acquire  that  unbilled  portion of  the  laboratory's  corporate  cap and
re-allocate that portion to the other service providers pro rata on the basis of
each provider's market share. MDS has consistently performed sufficient services
to be able to bill the full value of its corporate cap.

     Community Laboratories negotiate their contracts  with the MOH through  the
Ontario Association of Medical Laboratories ("OAML"). Negotiations are conducted
on  a regular basis  and include the size  of the industry  cap and fee schedule
adjustments  for  specific  services.  The   industry  cap  for  all   Community
Laboratories is $526 million in 2004 and $553 million in 2005 under an agreement
that  runs until March 31, 2005. The industry cap has grown at a compound annual
growth rate of 3.6% from 1997 to 2005 MOH fiscal years.

Market for Laboratory Services in Ontario

     The use  of laboratory  services  in Ontario  is  growing faster  than  the
Ontario  population. For the fiscal year of  the MOH ended March 31, 2003, there
were 14.3 million  requisitions (patient  visits) to  Community Laboratories  in
Ontario, resulting in a total of 80.2 million tests performed on patients for an
average  of 5.6 tests per requisition or  patient visit and 6.6 tests per person
in Ontario. It  is estimated  that approximately  50% of  laboratory testing  in
Ontario  is performed by  Community Laboratories. In  Ontario, substantially all
out-patient laboratory services  are performed  by Community  Laboratories on  a
fee-for-service basis.

     Demand  for  laboratory  services in  Ontario  is expected  to  continue to
increase in the future as a result of several factors, including the  following:
(i)  the Ontario population  is growing and aging,  (ii) physicians and patients
increasingly place more value on  laboratory services as a cost-effective  means
of  disease detection,  treatment monitoring  and preventive  medicine and (iii)
improved equipment  and  cost-efficiency make  testing  available to  a  broader
market.  In addition to these factors,  Ontario is experiencing increases in the
number of physicians,  sophisticated tests and  available testing for  high-risk
diseases.

THE LABS BUSINESS

Overview of Operations

     MDS  began operating the Labs Business in  Ontario in 1970 and the business
has since  grown to  become  one of  the  largest providers  of  community-based
laboratory services by revenue in Ontario. It currently performs over 31% of all
private sector community-based laboratory services in Ontario. The Labs Business
currently  holds licences  for the full  range of laboratory  services for which
licences are available from  the MOH, thereby allowing  it to perform  virtually
any laboratory service that could be ordered by a health care professional.

     The Labs Business generated revenues of approximately $200 million for each
of  the fiscal years of MDS  ended October 31, 2002 and  2003, over 86% of which
were paid by the MOH  on the basis determined  under agreements between the  MOH
and  the OAML. EBITDA for  the Labs Business for  the fiscal years ended October
31, 2002 and 2003 were approximately $52 million and $48 million,  respectively.
EBITDA,  as used in  respect of the  Labs Business in  these projections, is not
necessarily comparable  with  similarly  titled  measures  of  other  businesses
because not all businesses calculate EBITDA in the same fashion.
                                        74


     The following diagram illustrates the operation of the Labs Business:

                       (LABS BUSINESS OPERATIONS DIAGRAM)

Specimen Collection Network

     A  specimen is a unit of a bodily substance upon which a laboratory service
or test is performed,  such as blood or  urine or a sample  of tissue. The  Labs
Business  collects specimens for testing in  two principal ways: (i) through the
operation of patient service centres ("PSCs") that collect specimens for testing
from patients referred  by nearby  health care professionals  and (ii)  directly
from  physicians' offices.  The financial success  of a  Community Laboratory is
dependent upon having  a large volume  of requisitioned tests  which in turn  is
dependent upon having an existing network of PSCs.

     The  Labs Business has a network of  over 120 PSCs across Ontario. Each PSC
has a specimen collection  licence issued by  the MOH. The  PSCs are staffed  by
Labs Business employees and are often located in or near medical buildings where
offices  of health care professionals are located. Once a specimen is taken from
a patient, it is prepared for  testing and entered into the integrated  computer
network  operated by  the Labs  Business to  allow for  automatic processing and
reporting of test results. Approximately 60% of the Labs Business' specimens are
collected from PSCs.

     In addition to its PSCs, the Labs Business also collects specimens drawn or
collected from patients in  the offices of health  care professionals. In  these
cases,  the  specimen  is  drawn  or  collected  directly  by  the  health  care
professional and  then  is delivered  to  the PSC  either  by a  courier  system
operated  by the Labs Business or by the collecting office. Approximately 40% of
the Labs Business' specimens are collected from physicians' offices.

Courier Network

     Because of its size, the Labs  Business is able to capitalize on  economies
of  scale by operating its own courier  system to ensure the prompt and reliable
transfer of specimens from offices of health care professionals and its PSCs  to
its  laboratories.  The courier  system operates  on a  comprehensive scheduling
system.

Laboratories

     The Labs Business operates one high volume central laboratory (the "Central
Laboratory")  and   six  smaller   regional  laboratories   (each  a   "Regional
Laboratory").

     The  Central Laboratory  is located in  Etobicoke, Ontario.  It operates 24
hours per  day, seven  days  per week,  utilizing automated  diagnostic  testing
equipment   that  allows  high-volume  testing   to  be  conducted  quickly  and

                                        75


efficiently. The Central Laboratory holds laboratory licences issued by the  MOH
for  the full range of tests that are approved  by the MOH and can process up to
35,000 specimens a day. The Central Laboratory conducts over 60% of all  testing
conducted  by  the Labs  Business, with  the  balance being  carried out  at the
Regional Laboratories.

     The Regional Laboratories are used when testing is required on an immediate
basis and  the time  frames  involved make  it  impracticable or  impossible  to
transport  the specimen to  the Central Laboratory.  The Labs Business maintains
six Regional  Laboratories in  Ontario located  in Belleville,  London,  Ottawa,
Sudbury,  Thorold  and Thunder  Bay. The  Regional Laboratories  hold laboratory
licences for a more limited range of tests.

The Laboratory Information System

     Underlying the entire  laboratory services  process is  the Labs  Business'
Laboratory  Information System  (the "LIS"). The  LIS is  an integrated computer
network that tracks specimens from the time  they are collected to the time  the
results  are reported to  the physician. When  specimens are drawn,  each of the
tests requisitioned for that specimen by  the physician is entered into the  LIS
and a bar code is generated for that specimen. When a specimen arrives at one of
the  laboratories,  the highly  automated testing  process  reads the  bar code,
divides the specimen (if required), conducts the required tests,  electronically
collates all of the results and then reports the consolidated testing results to
the referring physician.

Reporting of Results

     The  Labs  Business maintains  data  transmission systems  that  allow test
results to  be transmitted  directly to  physicians and  various medical  office
systems  via the Internet, fax or mail.  Test results are reported to physicians
as quickly as possible and, in most cases, results are reported within 24  hours
of specimen collection.

Strategy

     The  goal  of  the  Labs  Partnership is  to  be  the  leading  provider of
laboratory testing  services  in  Ontario  by continuing  to  operate  the  Labs
Business  efficiently and selectively pursuing opportunities for growth that are
expected to be accretive.

     Historically, in the absence of acquisitions, organic revenue growth of the
Labs Business has been driven by  the increasing demand for laboratory  services
resulting  in the  negotiated expansion of  the industry cap  and the individual
corporate cap under agreements negotiated between the MOH and the OAML. The Labs
Partnership intends to pursue additional  growth opportunities by expanding  the
number  and type  of tests  that it  can provide  and, where  justified, seeking
increased compensation for the testing that it currently provides.

Competitive Advantages

     The Labs Partnership believes that  its competitive advantages include  the
following:

     -  Benefits  from  MDS.   The  Labs Partnership  has  the benefit  of MDS's
        long-term relationships with physicians, hospitals and other significant
        clients with the expectation of continued testing referrals and  current
        supplier  arrangements.  In addition,  the  Labs Partnership  expects to
        continue to benefit from the purchasing  power of MDS and will  continue
        to obtain supplies through this source.

     -  Technology  and Operations Investment.   The Labs Partnership management
        is  committed  to  investing  in  technology  to  operate  its  business
        effectively   and  efficiently.  The   Central  Laboratory,  located  in
        Etobicoke, Ontario is  equipped with  highly automated  instrumentation.
        Through  technology  and  operational efficiency,  the  Labs Partnership
        management has  improved the  cost  of its  operating structure  and  is
        pursuing  further cost reductions. In addition, management believes that
        it has a substantial amount of operational expertise gained through more
        than 30 years of providing laboratory services.

     -  Stable Revenue  Stream.   Substantially all  of the  Labs  Partnership's
        revenue  will be received from the MOH,  subject to both an industry and
        corporate cap,  as discussed  above. The  Labs Partnership's  management
        believes  that  the Labs  Business will  continue  to generate  a stable
        revenue stream.

Regulatory Matters

     The licensing and regulatory requirements  of the Labs Business relate  to,
among  other matters, conduct of testing  and reporting of results, the handling
and disposal  of medical  specimens, infectious  and hazardous  waste and  other
materials,  the safety and health of laboratory employees and the proficiency of
staff.

                                        76


     The MOH has granted two types of licence to MDS in connection with the Labs
Business: a  specimen  collection licence  and  a laboratory  licence.  Specimen
collection  licences  authorize  the  collection of  specimens.  Subject  to the
approval of the MOH, licensees have the ability to transfer specimen  collection
centre  licences from  one location to  another. Laboratory  licences permit the
actual testing and  payment for  such testing.  Laboratory licences  may not  be
transferred to other persons or other locations without the approval of the MOH.
MOH approval will be required in connection with, and will be a condition to the
completion  of, the Arrangement,  since these licences  will be transferred from
MDS to the Labs Partnership. MDS has discussed the Arrangement with the MOH  and
expects that such approval will be granted.

     A licence can be revoked if prescribed standards are not met. Licensees are
subject  to spot audits conducted by the  Ontario Medical Association and by the
MOH. To date, MDS has never had  a licence revoked. No new Community  Laboratory
licences  have been  issued since  the first licences  were issued  in 1974, and
these  licences  are  accordingly  of  significant  value.  The  restriction  on
licensing constitutes a barrier to entry into and, together with a funding model
based  on industry  caps and individual  corporate caps, a  barrier to expansion
within the  community-based laboratory  business in  Ontario through  any  means
other  than  the acquisition  of existing  licensed businesses.  It is  the Labs
Partnership's  intention  that  its  Community  Laboratories  continue  to  hold
licences  with  a  full range  of  permitted  tests, thereby  allowing  the Labs
Partnership to perform virtually all tests referred by physicians.

     In addition to the licensing of its laboratories, the Labs Business is also
subject to  regulation  relating to  the  use, transportation  and  disposal  of
hazardous  materials,  including biomedical  and pathological  waste, infectious
product and chemical and radioactive materials. The Government of Ontario issues
licences and  registrations  for operations  within  the province.  The  Federal
Government  has jurisdiction  over transportation of  dangerous goods, including
certain defined  toxic  substances  and radioactive  substances.  Penalties  for
infractions of environmental regulations have been steadily increasing in Canada
in  recent years  and emission,  discharge and  licensing standards  have become
increasingly stringent.

     The Labs  Business  is  also  subject to  occupational  health  and  safety
legislation  in Ontario.  Laboratory workers are  subject to  the Healthcare and
Residential Facilities Regulation made under the Occupational Health and  Safety
Act  (Ontario) which imposes  extensive workplace safety  requirements on health
care employers, including operators of  clinical laboratories whose workers  may
be  exposed to  blood-borne pathogens  such as HIV  and Hepatitis  B virus. This
regulation requires,  among other  things,  work practice  controls,  protective
clothing  and  equipment,  training, voluntary  medical  surveillance  and other
measures designed  to minimize  exposure to,  and transmission  of,  blood-borne
pathogens.

Facilities

     The  Central Laboratory is a 55,000 square foot space located in Etobicoke,
Ontario which is currently owned  by MDS and will be  leased by MDS to the  Labs
Partnership during the term of the Labs Partnership on normal commercial terms.

     Each  of the six Regional Laboratories is  either leased from a third party
(in which case the lease will be assigned by MDS to the Labs Partnership on  the
Effective  Date) or is owned by MDS (in which case the laboratory will be leased
by MDS  to the  Labs Partnership  on  the Effective  Date on  normal  commercial
terms).  These  laboratories range  in size  from  approximately 3,500  to 7,000
square feet and have leases expiring from November 2005 to October 2009, subject
to renewal rights.

     Each of the Labs Partnership's PSCs is leased. The leases are all on normal
commercial terms and the  majority of these  leases contain exclusivity  clauses
that  ensure MDS will be the only PSC in the particular building. The PSCs range
in size from approximately 200 to 3,600 square feet. No individual PSC lease  is
material to the Labs Business.

     The  current  terms of  these leases  are scheduled  to expire,  subject to
rights of renewal, as follows:

<Table>
<Caption>
CALENDAR YEAR                                                  NUMBER OF LEASES
- -------------                                                  ----------------
                                                            
2004........................................................          35
2005........................................................          23
2006........................................................          18
2007 or later...............................................          51
</Table>

                                        77


The following table summarizes the location of the PSCs forming part of the Labs
Business:

<Table>
<Caption>
                                                               NUMBER OF
REGION                                                           PSCS
- ------                                                         ---------
                                                            
Greater Toronto Area - Kitchener............................      44
Central North Ontario.......................................      25
North Ontario...............................................      12
Hamilton-Niagara............................................      19
South West Ontario..........................................      12
Eastern Ontario.............................................      15
</Table>

     It is anticipated that, upon completion of the Arrangement, all of the  PSC
leases  will be assigned  or subleased to  the Labs Partnership.  However, it is
possible that certain PSC  leases may not be  transferred on the Effective  Date
due  to delays in obtaining  landlord consent to the  assignment of such leases.
MDS  will  covenant  in  the   Labs  Contribution  Agreement  to  obtain   lease
assignments,  or if appropriate, to cause  the Labs Limited Partnership to enter
into new leases,  in each case  to effect  the transfer of  these remaining  PSC
leases  to the Labs Partnership as soon  as is commercially reasonable after the
Effective Time.

Employees

     As at December 31, 2003, the  Labs Business had over 2,800 employees,  none
of  whom  is  covered  by  a  collective  agreement.  On  January  1,  2004, MDS
transferred all employees that are employed by MDS solely in the Labs  Business,
to  MDS  Subco.  Following  the  Arrangement, MDS  will  also  provide  the Labs
Partnership with certain  support services under  the Labs Management  Agreement
(see "-- Labs Management Agreement" above).

Lending

     As  part of the Arrangement,  MDS will provide an  operating advance to the
Labs Partnership of  approximately $10  million to cover  working capital  until
such time as the Labs Business generates self-sustaining cash flow. This advance
will  be  repaid from  cash flow  generated  by the  Labs Partnership,  which is
expected to take approximately four months from the Effective Date.

Competition

     In Ontario,  the laboratory  services market  is highly  concentrated  with
three providers, being the Labs Business, CML Healthcare Inc. and Gamma-Dynacare
Medical  Laboratories accounting for more than 90% of the market. The laboratory
services industry in  Ontario has high  barriers to entry  for new  competitors,
which   barriers   include  the   licensing   process  and   ongoing  regulatory
requirements, the number of locations  required for specimen collection and  the
fixed  allocation of corporate  cap from the MOH.  Given the highly concentrated
market and high barriers to entry, the principal means of competition among  the
major providers continues to be differentiation based on quality and service and
a focus on cost efficiency in operations.

Legal Proceedings

     In  the normal course of  business, the Labs Business  is subject to claims
and is involved in various legal proceedings. The Labs Business is not currently
involved in any material  legal proceedings nor  is it aware  of any pending  or
threatened  proceedings  that  would have  a  material adverse  effect  upon the
financial condition or results of operations of the Labs Business.

UNAUDITED SUMMARY FINANCIAL INFORMATION CONCERNING THE LABS BUSINESS

SOURCE OF UNAUDITED SUMMARY FINANCIAL INFORMATION

     The following unaudited summary financial information relating to the  Labs
Business  is derived from the financial records of MDS that were used to prepare
the audited consolidated statements of financial  position of MDS as at  October
31, 2003 and the audited consolidated statements of income of MDS for the fiscal
years  ended October 31, 2003, 2002 and 2001. The opinion issued by the auditors
of MDS with respect to the  audit of such MDS consolidated financial  statements
was  issued without a reservation of opinion.  However, the auditors of MDS have
not reviewed, and  express no  opinion with  respect to,  the unaudited  summary
financial information relating to the Labs Business provided herein.

                                        78


BASIS OF PRESENTATION

     During the foregoing periods, the Labs Business operated as a branch within
a  division of  MDS and,  as such, separate  financial statements  have not been
historically required or prepared for the Labs Business.

Revenues and Operating Income

     The  following   unaudited   summary   financial   information   represents
management's  estimates of the revenues and operating income attributable to the
Labs Business for the fiscal years of MDS ended October 31, 2003, 2002 and 2001.
In reviewing  the following  estimates  of the  revenues and  operating  income,
Securityholders  should be aware of the  material assumptions made by management
in their preparation, which are noted below.

REVENUES AND OPERATING INCOME (UNAUDITED)

FOR THE YEAR ENDED OCTOBER 31 ($ IN THOUSANDS)

<Table>
<Caption>
                                                               2003      2002      2001
                                                              -------   -------   -------
                                                                         
Revenue.....................................................  200,733   199,108   187,967
Operating expenses(1).......................................  149,897   143,981   133,973
Amortization................................................    3,213     3,301     4,456
                                                              -------   -------   -------
Earnings before interest and taxes(2).......................   47,623    51,826    49,538
                                                              =======   =======   =======
</Table>

- ---------------

Notes:

(1)  Interest income/expense  for  MDS has  not  historically been  recorded  by
     individual  divisions due to a centralized cash pooling arrangement of MDS.
     Accordingly, no interest income/expense has been included.

(2)  Income tax expense has been  provided for MDS as a  whole but has not  been
     provided for the Labs Business separately. An estimate of the Labs Business
     share  of MDS's tax liability in 2003, 2002 and 2001 would be arbitrary and
     not  necessarily  indicative  of  the  income  tax  expense  of  the   Labs
     Partnership going forward. Accordingly, no such income tax expense has been
     included.

Financial Position

     The   following   unaudited   summary   financial   information  represents
management's estimates of  the financial  position of  the Labs  Business as  at
October  31, 2003  which reflects  the Labs  Assets. In  reviewing the following
estimates of the financial position of the Labs Business, Securityholders should
be aware of the  material assumptions made by  management in their  preparation,
which are noted below.

FINANCIAL POSITION (UNAUDITED)(1)(2)

AS AT OCTOBER 31, 2003 ($ IN THOUSANDS)

<Table>
<Caption>
                                                                2003
                                                               -------
                                                            
Inventories.................................................     2,232
Prepaid expenses............................................       326
                                                               -------
                                                                 2,558
Capital assets(3)...........................................    10,292
Goodwill(3).................................................    20,704
                                                               -------
Total Assets................................................    33,554
                                                               =======
Retained earnings...........................................    33,554
                                                               -------
Total liabilities and shareholders' equity..................    33,554
                                                               =======
</Table>

- ---------------

Notes:

(1)  No  cash, accounts receivable or accounts  payable are being transferred to
     the Labs Partnership. MDS  intends to provide the  Labs Partnership with  a
     $10  million advance  to fund its  working capital  requirements until such
     time as the  Labs Partnership  is able to  fund its  own cash  requirements
     through revenue generated from the Labs Business.

(2)  All  billings to the MOH for services  provided commencing on and after the
     Effective Date will be  collected by the  Labs Partnership. Similarly,  all
     expenses  incurred on and after the Effective Date will be paid by the Labs
     Partnership.  Based  on  current  collection  and  payment  terms,  average
     accounts  receivable and accounts payable  balances of the Labs Partnership
     are expected to be approximately $30 million and $10 million, respectively.

(3)  This does not  include assets  and goodwill  in respect  of certain  leased
     locations  of the Labs Business  which will not be  transferred to the Labs
     Partnership on the Effective Date. It is intended that such assets will  be
     transferred  to the Labs Partnership as  soon as is commercially reasonable
     after the Effective Time.

                                        79


FUTURE IMPACT OF RESULTS OF LABS BUSINESS ON LABCO

     Labco will  hold a  99.99% interest  in the  Labs Partnership  and will  be
entitled  to 99.99% of the  partnership distributions of net  income by the Labs
Partnership from and after the Effective Date. Labco intends to account for  the
acquisition of the Labs Partnership Interest using the equity method since Labco
will  own  only  a  limited  partnership  interest  (as  opposed  to  a  general
partnership interest) in the Labs Partnership and management and control of  the
Labs  Partnership will reside with MDS through  MDS Subco, as general partner of
the Labs Partnership.

     The Labs Partnership  Agreement provides that  additional limited  partners
may  be  admitted to,  and  be issued  limited  partnership units  of,  the Labs
Partnership following  the satisfaction  of  certain conditions,  including  the
passing  of  a special  resolution by  the existing  limited partners.  The Labs
Partnership does not have a current intention to issue limited partnership units
to any other party.

MANAGEMENT'S DISCUSSION AND ANALYSIS

     The following is management's discussion  and analysis (the "MD&A") of  the
results  of operation for the Labs Business  for MDS's fiscal year ended October
31, 2003, as prepared by management of the Labs Business.

     The MD&A should be read in conjunction with the unaudited summary financial
information under "Unaudited Summary  Financial Information Concerning the  Labs
Business"  above. The  unaudited summary  financial information  is management's
estimate of the results attributable to the Labs Business. However, as the  Labs
Business  has been operated  as a branch within  a division of MDS  and not as a
stand-alone business,  no  expenses that  would  be incurred  by  a  stand-alone
business such as income taxes, interest income/expense and costs associated with
public  company reporting and  other obligations associated  with being a public
company have been allocated to the Labs Business. Readers are cautioned that the
summary financial  information presented  herein  is unaudited  and may  not  be
appropriate for their purposes.

     The MD&A is intended to provide readers with information that management of
the  Labs Business  believes is important  to an understanding  of the financial
results of the Labs Business for the periods and as at the dates provided and to
assessing the future prospects  of the Labs  Partnership. Accordingly, the  MD&A
contains   forward-looking  statements.  These  forward-looking  statements  are
affected by risks and  uncertainties that are discussed  under "Risk Factors  --
Risks  Relating  to the  Labs Partnership".  Readers  are cautioned  that actual
events and results will vary from those provided herein.

     Effective April 1, 2003, a new two-year fee agreement between the OAML  and
the MOH was signed for laboratory services. This agreement increased the funding
for  Community Laboratories testing  services in Ontario by  $20 million to $526
million for the year ending March 31,  2004 and by an additional $27 million  to
$553  million for the year ending March 31, 2005. As part of this new agreement,
the MOH agreed to a one-time amount  of $10 million pending the satisfaction  of
certain  conditions  to be  satisfied by  the OAML  members. The  Labs Business'
current share of the increased fee amounts is approximately 31%.

REVIEW OF OPERATING RESULTS

<Table>
<Caption>
                                                              2003   2002   2001
                                                              ----   ----   ----
                                                               ($ in millions)
                                                                 (unaudited)
                                                                   
Revenue.....................................................  201    199    188
                                                              ===    ===    ===
</Table>

     Revenue increased by 1.0% in 2003 over 2002, reflecting an increase in  the
corporate  cap  for MOH  funding, offset  by  a one-time  payment of  $3 million
recorded in the  comparative 2002 revenue.  Revenue increased by  5.9% in  2002,
reflecting an increase in the corporate cap and the one-time adjustment.

                                        80


     The  revenue recognition  policy of the  Labs Business is  to recognize the
lower of the corporate cap or  the amount based on services performed.  Services
in  excess of the  corporate cap were performed  for the MOH  in the years ended
March 31, 2003, 2002 and 2001.

<Table>
<Caption>
                                                              2003   2002   2001
                                                              ----   ----   ----
                                                               ($ in millions)
                                                                 (unaudited)
                                                                   
Operating expenses..........................................  150    144    134
                                                              ===    ===    ===
</Table>

     Operating expenses increased by 4.2% in  2003 as a result of higher  salary
and  benefit costs. Operating expenses increased by  7.5% in 2002 as a result of
higher salary and benefit costs.

<Table>
<Caption>
                                                              2003   2002   2001
                                                              ----   ----   ----
                                                               ($ in millions)
                                                                 (unaudited)
                                                                   
                                                               $      $      $
Amortization................................................    3      3      4
                                                              ===    ===    ===
</Table>

     Amortization expense decreased in 2002 from 2001 as a result of goodwill no
longer being amortized in  accordance with the  Canadian Institute of  Chartered
Accountants Handbook requirements.

                                        81


                               REGULATORY MATTERS

SECURITIES LAW MATTERS

CANADA

     Application  will be made for certain  regulatory approvals or waivers from
the Canadian Securities  Administrators to ensure  that, after the  Arrangement,
the  New  Hemosol  Shares,  the Labco  Class  A  Shares and  the  Labco  Class B
Non-Voting Shares will  be as  freely tradeable  in or  into Canada  as are  the
Hemosol  Shares currently. Assuming such approvals  or waivers are obtained (and
Hemosol has  no reason  to believe  that they  will not  be obtained),  (i)  New
Hemosol  Shares, Labco Class A Shares and Labco Class B Non-Voting Shares issued
pursuant to the Arrangement, (ii) New Hemosol Shares issued upon the exercise of
the New Hemosol Convertible Securities  issued pursuant to the Arrangement,  and
(iii)  New Hemosol Shares  issued upon the  exercise of the  New Hemosol Options
issued pursuant to the Arrangement will, in each case, be freely tradeable in or
into Canada  through appropriately  registered  dealers provided  the  following
conditions,  among others, are met  at the time of such  trade: (i) Labco or New
Hemosol, as applicable, is a reporting issuer; (ii) the trade is not a  "control
distribution"  within  the meaning  of  Multinational Instrument  45-102  of the
Canadian Securities Administrators (i.e. the  selling shareholder does not  hold
(alone  or in combination with  others) more than 20%  of the outstanding voting
securities of Labco or New Hemosol, as applicable, and does not otherwise hold a
sufficient number of any securities of  Labco or New Hemosol, as applicable,  to
affect  materially the control of Labco or New Hemosol, as applicable); (iii) no
unusual effort is  made to prepare  the market or  create a demand  for the  New
Hemosol Shares, the Labco Class A Shares or the Labco Class B Non-Voting Shares,
as  applicable; (iv) no  extraordinary commission or consideration  is paid to a
person or company in respect of the  trade in the New Hemosol Shares, the  Labco
Class A Shares or the Labco Class B Non-Voting Shares, as applicable; and (v) if
the  selling shareholder is  an insider or  officer of Labco  or New Hemosol, as
applicable, the selling  security holder  has no reasonable  grounds to  believe
that  Labco  or  New  Hemosol,  as  applicable,  is  in  default  of  securities
legislation.

UNITED STATES

     The Labco Class  A Shares, the  Labco Class  C Shares and  the New  Hemosol
Shares to be issued pursuant to the Arrangement will not be registered under the
U.S. Securities Act in reliance upon the exemption from registration provided by
section 3(a)(10) thereof.

     Labco  Class A Shares  issued to a Shareholder  pursuant to the Arrangement
may be resold  without restriction  under the  U.S. Securities  Act, except  for
Labco  Class A  Shares issued to  any Shareholder  who is an  affiliate of Labco
following consummation of the Arrangement or who was an affiliate of Hemosol  or
MDS prior to consummation of the Arrangement. Securityholders who are affiliates
of  Labco after consummation of the Arrangement  may publicly sell Labco Class A
Shares in the U.S. only  in compliance with the  restrictions of Rule 144  under
the  U.S. Securities  Act. Securityholders who  are not affiliates  of Labco but
were affiliates of Hemosol or MDS  prior to the consummation of the  Arrangement
may publicly sell Labco Class A Shares in the U.S. following consummation of the
Arrangement  only in compliance with the restrictions of Rule 145 under the U.S.
Securities Act. In addition,  these affiliates may publicly  sell Labco Class  A
Shares  outside the  U.S. in  compliance with  the restrictions  of Regulation S
under the U.S. Securities  Act. The foregoing does  not address requirements  or
restrictions,  if any, under  securities or Blue  Sky laws of  the states of the
U.S. applicable to the resale of Labco Class A Shares.

     New Hemosol Shares issued to a Shareholder pursuant to the Arrangement  may
be  resold without  restriction under  the U.S.  Securities Act,  except for New
Hemosol Shares issued  to any  Shareholder who is  an affiliate  of New  Hemosol
following  consummation of the Arrangement or who was an affiliate of Hemosol or
MDS prior to consummation of the Arrangement. Securityholders who are affiliates
of New  Hemosol after  consummation of  the Arrangement  may publicly  sell  New
Hemosol  Shares in the U.S. only in compliance with the restrictions of Rule 144
under the U.S.  Securities Act. Securityholders  who are not  affiliates of  New
Hemosol  but were affiliates of Hemosol or  MDS prior to the consummation of the
Arrangement  may  publicly  sell  New  Hemosol  Shares  in  the  U.S.  following
consummation of the Arrangement only in compliance with the restrictions of Rule
145  under the U.S.  Securities Act. In addition,  these affiliates may publicly
sell New Hemosol Shares outside the U.S. in compliance with the restrictions  of
Regulation S under the U.S. Securities Act.

                                        82


     For purposes of this discussion, an "affiliate" is any person that directly
or  indirectly controls,  or is  controlled by or  is under  common control with
Labco, MDS, Hemosol or New Hemosol, as the case may be. Securityholders who  may
be  affiliates for these purposes should  consult their own legal advisors prior
to the sale of Labco Class A Shares or New Hemosol Shares, as the case may be.

     New Hemosol Shares issuable  upon exercise of New  Hemosol Options will  be
registered  under the U.S.  Securities Act through the  filing of a registration
statement on  Form S-8.  New  Hemosol Shares  so  registered, when  issued  upon
exercise  of such  options, other  than shares  issued to  any affiliate  of New
Hemosol, will be eligible to be resold publicly in the U.S. without restriction.
New Hemosol currently  expects that  the necessary  registration statement  will
become  effective concurrently  with the  Arrangement, and  that holders  of New
Hemosol Options will be able to  exercise such options for freely tradeable  New
Hemosol  Shares as soon as the  Arrangement becomes effective. Affiliates of New
Hemosol who receive New Hemosol Shares upon exercise of New Hemosol Options  may
publicly  sell these shares in the U.S. only in compliance with the restrictions
of Rule 144 under  the U.S. Securities  Act and outside  the U.S. in  compliance
with the restrictions of Regulation S.

OSC RULE 61-501 AND AMF POLICY Q-27

     The  Arrangement  is a  "going private  transaction"  and a  "related party
transaction" within the meaning of Rule 61-501 and Policy Q-27. Rule 61-501  and
Policy  Q-27 establish rules which are intended to ensure that transactions such
as the  Arrangement are  both substantively  and procedurally  fair to  minority
shareholders.

VALUATION EXEMPTION

     Rule  61-501, Policy Q-27 and the OBCA provide that a corporation proposing
to carry out a going private or  related party transaction is required, in  most
circumstances, to prepare a formal valuation of the subject matter of a proposed
transaction  and to  provide to  the holders  of the  corporation's securities a
summary of such valuation,  unless specified circumstances  exist and are  fully
disclosed in the proxy materials.

     On  December 17,  2003, Hemosol filed  an application  for exemptive relief
from the formal valuation requirements of Rule 61-501, Policy Q-27 and the  OBCA
under the Mutual Reliance Review System with the OSC as the principal regulator.
An MRRS Decision Document was issued pursuant to which the requirement to obtain
a formal valuation does not apply to Hemosol in connection with the Arrangement.

MINORITY APPROVAL

     Rule 61-501 and Policy Q-27 also provide that a "going private transaction"
or  a "related party transaction" such as  the Arrangement must be approved by a
majority of  the votes  cast  by holders  of  securities, excluding  holders  of
securities whose votes cannot be included for the purposes of minority approval,
as  that term is defined  in Rule 61-501 and Policy  Q-27. Under Rule 61-501 and
Policy Q-27, as applied to the Arrangement, minority approval of the Arrangement
Resolution would require the  approval by a  majority of all  the votes cast  by
Minority Shareholders. To the knowledge of Hemosol, for purposes of the minority
approval   requirement,  the   Minority  Shareholders   are  comprised   of  all
Shareholders except MDS,  MDS Health  Ventures (TC)  Inc. and  two entities  for
which MDS Capital Corp. and/or its affiliates provide management services who as
at  March 1, 2004 held an aggregate  of 7,362,143 Hemosol Shares. A breakdown of
the Hemosol Shares held  by MDS and  its affiliates is  provided in the  section
"General  Proxy Matters --  Voting Securities and  Principal Holders Thereof" of
this Circular.

FINANCIAL INFORMATION EXEMPTION

     As the acquisition by Labco from MDS of the Labs Partnership Interest  (the
"Acquisition"),  which  is,  in  effect, an  indirect  acquisition  of  the Labs
Business by Labco, constitutes a "significant probable acquisition" by Labco for
the purposes  of  OSC Rule  41-501  -- General  Prospectus  Requirements  ("Rule
41-501")  and National Instrument 44-101  -- Short Form Prospectus Distributions
("NI 44-101"), absent an exemption,  this Circular must include certain  audited
historical  financial information  and certain pro  forma information concerning
the Labs Business.

     On January 9, 2004, MDS and Hemosol filed a joint application for exemptive
relief from  the  requirement  to  include  such  audited  historical  financial
information  and certain pro forma information in this Circular under the Mutual
Reliance Review System with the OSC as the principal regulator. An MRRS Decision
Document was issued pursuant  to which the requirement  to include such  audited
historical financial information and certain pro
                                        83


forma  information  in  the Circular  does  not  apply to  Hemosol  or  Labco in
connection with the Arrangement, provided that the Circular contains the summary
financial information and  related disclosure  as set  out in  "Labco After  the
Arrangement -- Selected Labco Pro Forma Financial Information".

COMPETITION ACT (CANADA)

     Under  the Competition  Act (Canada),  as amended  (the "Competition Act"),
transactions that exceed certain financial thresholds require prior notification
to  the   Commissioner   of  Competition   under   the  Competition   Act   (the
"Commissioner").  If a transaction is subject to the notification requirement (a
"Notifiable  Transaction"),  it  may  not  be  completed  until  the  applicable
statutory  waiting period has  expired or the Commissioner  has either issued an
ARC or, in lieu of an ARC waived the filing obligation.

     The parties had a choice of filing a short-form filing (in respect of which
there is a 14-day statutory waiting  period), a long-form filing (in respect  of
which  there is a  42-day statutory waiting period)  or alternatively, a request
for an advance ruling certificate (an  "ARC") by the Commissioner under  section
102  of the  Competition Act  and, in  lieu of  an ARC,  a waiver  of the filing
obligation. Where an ARC is issued  and the Notifiable Transaction to which  the
ARC  relates is substantially completed within one year after the ARC is issued,
the Commissioner cannot seek an order of the Competition Tribunal in respect  of
the  Notifiable Transaction solely on the basis  of information that is the same
or substantially the same as the information  on the basis of which the ARC  was
issued.

     As  the Arrangement constitutes  a Notifiable Transaction,  on February 25,
2004, MDS filed a request  for an ARC in respect  of the Arrangement and an  ARC
was issued by the Commissioner on March 10, 2004.

HSR ACT

     The Arrangement is not subject to the notification, waiting period or other
requirements  of the United States  Hart-Scott-Rodino Antitrust Improvements Act
of 1976, as amended.

                                        84


                           INCOME TAX CONSIDERATIONS

CERTAIN CANADIAN FEDERAL INCOME TAX CONSIDERATIONS

     In the opinion of DWPV, the  following are fair summaries of the  principal
Canadian federal income tax consequences of the Arrangement generally applicable
to  the holders of Hemosol Shares and  Hemosol Warrants. The summaries are based
on the current provisions of the Tax Act, the regulations thereunder,  counsel's
understanding of the current administrative practices of CCRA and the Tax Ruling
issued  in  respect of  the consequences  under the  Tax Act  of certain  of the
transactions forming part of  the Arrangement. The  summaries take into  account
all  specific  proposals  to amend  the  Tax  Act and  the  regulations publicly
announced by or on behalf of the Minister of Finance (Canada) prior to the  date
hereof.  The  summaries do  not otherwise  take into  account or  anticipate any
changes in law,  whether by  judicial, governmental or  legislative decision  or
action, or any changes in the administrative practices of CCRA, nor do they take
into  account  provincial, territorial,  or  foreign income  tax  legislation or
considerations.

     The Tax  Act contains  certain provisions  relating to  securities held  by
certain  financial institutions  (the "mark-to-market rules").  The summaries do
not take into account the mark-to-market rules and any holder of Hemosol  Shares
or  Hemosol Warrants that is a "financial  institution" for the purpose of those
rules should  consult its  own tax  advisors.  The summaries  do not  take  into
account  the consequences of the Arrangement to a holder an interest in which is
a "tax shelter investment" for purposes of the Tax Act.

     THE SUMMARIES ARE OF A GENERAL NATURE ONLY AND ARE NOT INTENDED TO BE,  NOR
SHOULD  THEY BE CONSTRUED TO  BE, LEGAL OR TAX  ADVICE OR REPRESENTATIONS TO ANY
PARTICULAR HOLDER  OF  HEMOSOL SHARES  OR  HEMOSOL WARRANTS.  ACCORDINGLY,  SUCH
HOLDERS  SHOULD CONSULT THEIR OWN TAX  ADVISORS WITH RESPECT TO THEIR PARTICULAR
CIRCUMSTANCES.

HOLDERS RESIDENT IN CANADA

     The following summary is applicable only  to a holder of Hemosol Shares  or
Hemosol  Warrants who, at all relevant times, for  purposes of the Tax Act is or
is deemed to  be resident  in Canada,  holds Hemosol  Shares, Hemosol  Warrants,
Labco  Class A Shares and Labco Class  C Shares acquired in exchange for Hemosol
Shares or New Hemosol Shares  acquired in exchange for  Labco Class C Shares  as
capital  property and  both deals  at arm's length  with, and  is not affiliated
with, Hemosol or Labco (as the case may be), New Hemosol or MDS. Hemosol Shares,
Hemosol Warrants  and New  Hemosol Shares  will generally  be considered  to  be
capital property to the holder unless the holder holds such shares in the course
of carrying on a business, or has acquired them in a transaction or transactions
considered to be an adventure in the nature of trade.

Exchange of Hemosol Shares for Labco Class A Shares and Labco Class C Shares

     Each  holder  of Hemosol  Shares will  be  deemed to  have disposed  of the
Hemosol Shares, on their  exchange for Labco  Class A Shares  and Labco Class  C
Shares,  for proceeds  of disposition  equal to  the adjusted  cost base  to the
holder of the holder's Hemosol Shares so that the holder will realize no capital
gain or capital loss on the exchange. The cost to a holder of Hemosol Shares  of
the  Labco Class A Shares or Labco Class  C Shares received on the exchange will
be that proportion of the adjusted cost base to the holder of the Hemosol Shares
that the fair market value of the Labco  Class A Shares or Labco Class C  Shares
received, as the case may be, is of the aggregate fair market value of all Labco
Class  A Shares and Labco Class C Shares received by the holder on the exchange.
Such holder of Hemosol  Shares will not  be deemed to  receive any dividend  for
purposes of the Tax Act with respect to the exchange.

Exchange of Labco Class C Shares for New Hemosol Shares

     A  holder who  receives New  Hemosol Shares in  exchange for  Labco Class C
Shares will realize neither a capital gain nor a capital loss by virtue of  that
exchange  unless  the holder  chooses  to include  in  computing income  for the
taxation year in which the  exchange occurs any portion  of the capital gain  or
capital  loss otherwise determined. On the exchange  of Labco Class C Shares for
New Hemosol Shares,  the holder will  be deemed  to have disposed  of the  Labco
Class  C Shares for proceeds of disposition equal to their adjusted cost base to
the holder immediately before the exchange, and to have acquired the New Hemosol
Shares at a cost equal to that same

                                        85


adjusted cost base, unless the holder chooses to include in computing income any
portion of the capital gain or capital loss otherwise determined.

     A holder who exchanges Labco Class C Shares for New Hemosol Shares and who,
in such holder's income tax return for  the taxation year in which the  exchange
occurs,  includes in computing income any portion of the capital gain or capital
loss otherwise determined from the exchange, will be considered to have disposed
of all Labco Class C  Shares so exchanged for  proceeds of disposition equal  to
the  fair market value of the New Hemosol Shares received on the exchange and to
have acquired such New Hemosol Shares at  a cost equal to that same fair  market
value.

Exchange of Hemosol Warrants

     A  holder who receives  New Hemosol Convertible  Securities in exchange for
Hemosol Warrants will be  deemed to have disposed  of such Hemosol Warrants  for
proceeds  of  disposition equal  to the  fair  market value  of the  New Hemosol
Convertible Securities received and to have acquired the New Hemosol Convertible
Securities at a cost equal to that same fair market value.

Dividends on Labco Class A Shares and New Hemosol Shares

     Dividends received (or deemed to be  received) on the Labco Class A  Shares
or  New Hemosol  Shares by  a holder who  is an  individual will  be included in
computing the  individual's income  and  will be  subject  to the  gross-up  and
dividend  tax credit  rules generally  applicable to  taxable dividends received
from taxable Canadian corporations. Taxable dividends received by an  individual
may  give rise to  alternative minimum tax  under the Tax  Act, depending on the
individual's circumstances.

     Dividends received (or deemed to be  received) on the Labco Class A  Shares
or  New Hemosol  Shares by a  holder that is  a corporation will  be included in
computing the corporation's income and will generally be deductible in computing
its taxable income.

     A  "private  corporation"  (as  defined  in  the  Tax  Act)  or  any  other
corporation  resident  in Canada  and controlled  by  or for  the benefit  of an
individual or related group of individuals may be liable to tax under Part IV of
the Tax Act to pay a refundable tax of 33 1/3% on dividends received on the  New
Hemosol  Shares or Labco  Class A Shares  to the extent  that such dividends are
deductible in computing the shareholder's taxable income.

Dispositions

     A holder who  disposes of, or  is deemed to  dispose of, Hemosol  Warrants,
Labco Class A Shares or New Hemosol Shares will generally realize a capital gain
(or  a capital loss) to the extent that  the proceeds of disposition, net of any
reasonable costs of  disposition, exceed (or  are less than)  the adjusted  cost
base  of such shares or warrants to such holder. If the holder is a corporation,
any capital loss  arising on the  disposition of a  Labco Class A  Share or  New
Hemosol  Share, as the case the may  be, may be reduced in certain circumstances
by the amount of  any dividends which  have been received or  been deemed to  be
received  on the relevant share. Analogous rules apply to a partnership or trust
of which a corporation, trust or partnership is a member or beneficiary.

Capital Gains and Capital Losses

     One-half of  any capital  gain (a  "taxable capital  gain") realized  by  a
holder  in a taxation year must be included  in the holder's income in that year
and one-half of  any capital loss  (an "allowable capital  loss") realized by  a
holder  in a taxation  year will be  deducted from the  holder's taxable capital
gains in that year. Allowable capital losses in excess of taxable capital  gains
generally  may  be carried  back  and deducted  in  any of  the  three preceding
taxation years or carried  forward and deducted in  any subsequent year  against
net  taxable  gains  realized  in  such  years  to  the  extent  and  under  the
circumstances described in the Tax Act.

     Capital gains realized by  an individual may give  rise to a liability  for
minimum  tax under  the Tax Act.  A Canadian-controlled  private corporation, as
defined in the Tax Act, may be subject to an additional refundable tax of 6 2/3%
on investment income (including taxable capital gains).

                                        86


HOLDERS NOT RESIDENT IN CANADA

     The following summary is generally applicable to a holder of Hemosol Shares
or Hemosol Warrants who, at all relevant times, for purposes of the Tax Act  and
any  applicable  tax treaty  or  convention, is  not  resident in  Canada, holds
Hemosol Shares, Hemosol Warrants, Labco Class A Shares and Labco Class C  Shares
acquired  in  exchange for  Hemosol  Shares or  New  Hemosol Shares  acquired in
exchange for Labco  Class C Shares  as capital property,  deals at arm's  length
with,  and is not  affiliated with, Hemosol or  Labco (as the  case may be), New
Hemosol and MDS and does not use or hold, and is not deemed to use or hold, such
shares or warrants in carrying on,  or otherwise in connection with, a  business
in  Canada, and is not  a non-resident insurer for purposes  of the Tax Act. The
following summary assumes that the  Labco Class C Shares  will be listed on  the
TSX at the Effective Time.

Exchanges of Shares

     No  capital  gain or  capital  loss will  be realized  by  a holder  on the
exchange of Hemosol Shares for Labco Class A Shares and Labco Class C Shares  or
on  the exchange  of a  Labco Class  C Share  for a  New Hemosol  Share. Neither
exchange will give rise to a deemed dividend to the holder.

Dividends

     Dividends paid or credited, or deemed to  be paid or credited, to a  holder
of Labco Class A Shares or New Hemosol Shares will be subject to withholding tax
under the Tax Act at a rate of 25%, subject to reduction under the provisions of
an  applicable tax  treaty or convention.  For example,  under the Canada-United
States Income Tax Convention (1980) (the "U.S. Treaty"), the applicable rate  of
dividend withholding tax is generally reduced to 15%.

Exchange of Hemosol Warrants

     A  holder who receives  New Hemosol Convertible  Securities in exchange for
Hemosol Warrants will be  deemed to have disposed  of such Hemosol Warrants  for
proceeds  of  disposition equal  to the  fair  market value  of the  New Hemosol
Convertible Securities received and to have acquired the New Hemosol Convertible
Securities at a cost equal to that same fair market value.

Disposition of Hemosol Warrants

     A holder of Hemosol Warrants which are not "taxable Canadian property"  (as
defined  in the Tax  Act) will not  be subject to  tax under the  Tax Act on the
disposition of such warrants.  Generally, Hemosol Warrants  will not be  taxable
Canadian  property to  a holder  at a  particular time  if, during  the 60-month
period immediately  preceding  the  disposition of  the  Hemosol  Warrants,  the
holder,  persons  with whom  the holder  did not  deal at  arm's length,  or the
holder, together with  such persons, did  not own options  or warrants or  other
interests  in or other options in respect of 25% or more of the issued shares of
any class or series of shares of the capital stock of Hemosol.

Disposition of Acquired Shares

     A holder of New  Hemosol Shares which are  not "taxable Canadian  property"
(as  defined in the Tax Act) will not be subject to tax under the Tax Act on the
disposition of such shares.  Generally, New Hemosol Shares  will not be  taxable
Canadian property to a holder at a particular time if:

     (a)  the  New  Hemosol Shares  are listed  on  a prescribed  stock exchange
          (which currently includes the TSX), at the relevant time; and

     (b)  during the 60-month  period immediately preceding  the disposition  of
          the  relevant shares, the holder, persons with whom the holder did not
          deal at arm's length, or the  holder, together with such persons,  did
          not own (i) 25% or more of the issued shares of any class or series of
          shares of the capital stock of New Hemosol or (ii) options or warrants
          or  other interests  in or options  in respect  of 25% or  more of the
          issued shares of any class or series of shares of the capital stock of
          New Hemosol.

                                        87


     Labco Class A Shares will  be taxable Canadian property  to a holder and  a
capital  gain or capital loss realized on a disposition by the holder of a Labco
Class A  Share or  on a  disposition of  a New  Hemosol Share  which is  taxable
Canadian  property  will be  subject  to tax  under the  Tax  Act in  the manner
described under the heading "-- Holders Resident in Canada -- Capital Gains  and
Capital  Losses" above, unless the capital gain is exempt from tax under the Tax
Act pursuant to the provisions of  an applicable tax treaty or convention.  Such
holder  of a Labco  Class A Share will  also be subject  to the notification and
withholding provisions  of s.  116 of  the  Tax Act.  HOLDERS WHOSE  SHARES  ARE
TAXABLE CANADIAN PROPERTY SHOULD CONSULT THEIR OWN TAX ADVISORS.

CERTAIN UNITED STATES FEDERAL INCOME TAX CONSIDERATIONS

     The  following discussion  summarizes certain material  U.S. federal income
tax consequences of the Arrangement applicable to the holders of Hemosol  Shares
that  are US Holders. This  summary is for general  information only and it does
not constitute a full discussion of all tax considerations potentially  relevant
to  the Arrangement. This summary  does not deal with  the state or local income
tax consequences, or the estate and  gift tax consequences, of the  Arrangement.
ALL  US  HOLDERS  ARE  URGED TO  CONSULT  THEIR  OWN TAX  ADVISORS  AS  TO THEIR
PARTICULAR TAX  CONSEQUENCES, INCLUDING  THEIR  ELIGIBILITY FOR  ANY  APPLICABLE
TREATY BENEFITS, THE APPLICABILITY AND EFFECT OF STATE, LOCAL, FOREIGN AND OTHER
TAX  LAWS AND POSSIBLE CHANGES IN THE TAX LAWS. IN ADDITION, US HOLDERS THAT ARE
PARTNERS IN A PARTNERSHIP THAT HOLDS  HEMOSOL SHARES ARE URGED TO CONSULT  THEIR
OWN TAX ADVISORS REGARDING THEIR SPECIFIC TAX CONSEQUENCES.

     This  summary addresses only US Holders that hold Hemosol Shares as capital
assets and use the  U.S. dollar as their  functional currency. Without  limiting
the  generality  of the  foregoing,  this summary  does  not deal  with  the tax
treatment of  investors  subject  to  special rules,  such  as  banks  or  other
financial institutions, "financial services entities", securities
broker-dealers,  traders in securities that elect to use a mark-to-market method
of accounting  for  their  security holdings,  insurance  companies,  tax-exempt
entities,  persons  that hold  Hemosol Shares  as part  of a  hedging, straddle,
conversion or  constructive sale  transaction  or other  integrated  investment,
persons  who received Hemosol Shares or will receive New Hemosol Shares or Labco
Shares as compensation, or certain expatriates or former long-term residents  of
the United States.

     As  used in this section, the  term "Labco Shares" means, collectively, the
Labco Class A Shares and the Labco Class B Non-Voting Shares.

     This summary is based on the tax  laws of the United States, including  the
Internal  Revenue Code  of 1986, as  amended (the "Internal  Revenue Code"), its
legislative history,  existing and  proposed regulations  thereunder,  published
rulings  and court decisions,  all as currently  in effect and  all of which are
subject to change at any time, possibly with retroactive effect.

UNITED STATES FEDERAL INCOME TAX CONSEQUENCES OF THE ARRANGEMENT

     In the opinion of Weil, Gotshal & Manges LLP, U.S. counsel to Hemosol,  the
various  events to be  consummated pursuant to  the Plan of  Arrangement will be
viewed together for purposes of analyzing the potential U.S. federal income  tax
consequences  of the  Arrangement and the  Arrangement will likely  be viewed as
consisting of three principal related steps.  First, Labco should be treated  as
transferring an approximately 93% general partner interest in the Blood Products
Partnership  to  New Hemosol  in exchange  for  all of  the New  Hemosol Shares.
Second, Labco should be treated as distributing pro rata to its shareholders the
New Hemosol Shares received in step one (the "New Hemosol Shares Distribution").
Finally, MDS should be treated as contributing the Labs Partnership Interest  to
Labco in exchange for substantially all of the equity value of Labco.

     For  U.S. federal income tax purposes,  the New Hemosol Shares Distribution
is likely to be treated as a taxable (rather than a tax-free) distribution  from
Labco  to its  shareholders, resulting  in a  potential U.S.  federal income tax
liability to US Holders.

     Subject to the passive foreign investment company ("PFIC") rules  discussed
below,  any distribution by Labco to a US Holder out of earnings and profits, as
determined under U.S. federal income tax  principles, will be includible in  the
gross  income of such US Holder and  subject to tax as ordinary dividend income.
In the case of  a US Holder that  is a corporation, a  dividend from Labco  will
generally  be taxable at regular corporate rates of up to 35% and generally will
not qualify for a dividends-received deduction. In the case of an individual  US
Holder (as

                                        88


well  as in  the case  of certain trusts  and estates),  dividends are generally
subject to tax at ordinary income rates of up to 35% as well. Certain "qualified
dividends" received before the taxable year beginning January 2009 are  eligible
for  a reduced  15% rate of  federal income tax;  however, it is  likely that no
portion of  the New  Hemosol Shares  Distribution would  constitute a  qualified
dividend. See "-- Dividends" below.

     The  amount of any  distribution in excess of  Labco's earnings and profits
will be treated as a tax-free return of capital to the extent of the US Holder's
adjusted basis in its  Labco Shares. Any remaining  excess distribution will  be
treated as gain from the disposition of such US Holder's Labco Shares. Such gain
will  generally be capital  gain, and will  be long-term capital  gain if the US
Holder held its Hemosol Shares for more than one year. The maximum rate of  U.S.
federal  income tax on  net long-term capital  gains of non-corporate taxpayers,
including individuals, is currently 15%.

     Earnings and  profits includes  both earnings  and profits  accumulated  in
prior  years and earnings and profits that are earned during the taxable year in
which the  distribution  occurs. A  distribution  out of  current  earnings  and
profits  will  be  treated  as  a  taxable  dividend  even  if  the distributing
corporation has a deficit in accumulated earnings and profits. Current  earnings
and  profits are computed as of the close of the taxable year without diminution
by reason of distributions during such year.

     Hemosol believes that it has no  accumulated earnings and profits and  that
neither  Hemosol  nor Labco  should  have current  earnings  and profits  in the
taxable year in  which the  New Hemosol Shares  Distribution will  occur --  the
taxable  year ending  on October  31, 2004.  Assuming this  to be  the case, and
assuming that the PFIC rules do not apply as described below, no portion of  the
New  Hemosol Shares Distribution  would be treated as  a dividend. Instead, such
distribution would be  treated as a  non-taxable return of  capital and, to  the
extent  it exceeded a  US Holder's basis in  its Labco Shares,  as gain from the
sale or exchange thereof. However, no assurance  can be given that this will  be
the case, since the calculation of earnings and profits is dependent upon future
events and upon the characterization of certain transactions being undertaken in
connection with the Arrangement.

     Based  upon  the  characterization  of the  Plan  of  Arrangement described
herein, for  U.S. tax  purposes, a  US Holder  should have  a basis  in the  New
Hemosol  Shares issued  pursuant to  the Plan of  Arrangement equal  to the fair
market value of  such shares, and  the US  Holder's holding period  for its  New
Hemosol Shares should begin on the first day following the date such shares were
issued to the US Holder.

     The US Holder's holding period in the Labco Shares will include the holding
period  such US  Holder had in  the Hemosol Shares.  The US Holder  will have an
aggregate tax basis in  its Labco Shares  equal to its tax  basis in the  former
Hemosol  Shares, less  any amount  treated as a  return of  capital as described
above. The aggregate adjusted tax basis in the Labco Shares should be  allocated
between  the Labco Class A Shares and  the Labco Class B Non-Voting Shares based
on their respective fair market values. Because the issuance of the Labco  Class
C  Shares should be regarded as transitory, no part of the US Holder's tax basis
in the Hemosol Shares should be allocated thereto.

DIVIDENDS

     Subject to the PFIC  rules discussed below, any  distributions made by  New
Hemosol or Labco to a US Holder out of their respective earnings and profits, as
determined  under U.S. federal income tax  principles, will be includible in the
gross income of such US Holder  as ordinary dividend income. Distributions  made
by  New Hemosol or Labco in excess of their respective earnings and profits will
be treated as  a tax-free return  of capital to  the extent of  the US  Holder's
respective  adjusted basis in such shares, and  thereafter as gain from the sale
or exchange of a capital asset. For the other U.S. federal income tax rates  and
rules  applicable to dividend  income, see "-- United  States Federal Income Tax
Consequences of the Arrangement" above.

     As noted above, certain "qualified  dividends" received by a  non-corporate
US  Holder are eligible for  a reduced 15% rate of  federal income tax. For this
purpose, qualified  dividends  generally include  dividends  paid on  shares  of
certain   non-U.S.  corporations,  if,  among  other  things,  (i)  such  shares
(including ADRs backed by  such shares) are readily  tradable on an  established
securities  market in  the United  States, or  (ii) the  non-U.S. corporation is
eligible with respect to substantially all of  its income for the benefits of  a
comprehensive  income  tax  treaty  with the  United  States  which  contains an
exchange of information program. The income tax treaty between the United States
and Canada has been identified as a qualifying treaty.

                                        89


     Qualified dividends  do  not  include  any  dividend  paid  by  a  non-U.S.
corporation  that is  treated, or was  treated in  the prior taxable  year, as a
foreign investment company,  foreign personal holding  company or PFIC.  Hemosol
does not believe that it is, or that Labco will be, a foreign investment company
or  a foreign personal holding company. While uncertain, Hemosol expects that if
the Arrangement  is consummated  in  2004, neither  Hemosol  nor Labco  will  be
treated as a PFIC in 2004. However, Hemosol believes that it was likely deemed a
PFIC  for its taxable years 2001 through 2003,  and may also have been deemed to
be a PFIC  in preceding years.  Following consummation of  the Arrangement,  the
Labco  Shares will  no longer be  readily tradable on  an established securities
market in the United States. Nevertheless,  dividends paid by Labco in or  after
the  taxable year 2005 should be  qualified dividends, subject to the applicable
US Holder satisfying the holding period and other requirements described  below,
on  the basis that Labco should be eligible with respect to substantially all of
its income for the benefits of the  income tax treaty between the United  States
and Canada. However, dividends paid by Labco in the taxable year 2004, including
any  portion of the  New Hemosol Shares  Distribution treated as  a dividend (as
described above), would not be qualified dividends.

     However, Hemosol expects that New Hemosol may  be a PFIC for 2004. In  such
event,  any dividends paid to a US Holder  by New Hemosol would not be qualified
dividends eligible for the 15% rate of tax.

     A US Holder will not be entitled to the preferential 15% rate with  respect
to  otherwise qualified dividends unless the US Holder has held the Labco Shares
for at least 61  days of the 121-day  period beginning on the  date which is  60
days  before the  ex-dividend date  and is under  no obligation  to make related
payments on substantially similar property. Any days during which the US  Holder
has  diminished its  risk of loss  on its  Labco Shares are  not counted towards
meeting the  61-day holding  period.  Finally, US  Holders  who elect  to  treat
qualified  dividends as "investment income" pursuant to section 163(d)(4) of the
Internal Revenue Code  will not  be eligible for  the preferential  15% rate  of
taxation.

     The amount of any distribution paid in Canadian dollars will equal the U.S.
dollar  value of  the Canadian dollars  received calculated by  reference to the
exchange rate in effect on the date  the dividend is received by the US  Holder,
regardless  of whether the Canadian dollars  are converted into U.S. dollars. If
the Canadian dollars received as a dividend are not converted into U.S.  dollars
on  the date of receipt, the US Holder will have a basis in the Canadian dollars
equal to  their U.S.  dollar value  on the  date of  receipt. Any  gain or  loss
realized on a subsequent conversion or other disposition of the Canadian dollars
will be treated as U.S. source ordinary income or loss.

     A  US Holder may be entitled to claim  a deduction or a foreign tax credit,
in respect of  any Canadian  tax withheld at  source, against  its U.S.  federal
income  tax, subject to  applicable limitations in the  Internal Revenue Code. A
dividend from Labco or New Hemosol  generally will be treated as foreign  source
income  for purposes of  the foreign tax credit  limitation. The rules governing
the foreign  tax credit  are complex,  and special  rules apply  to foreign  tax
credits  relating to  qualified dividends. US  HOLDERS ARE  ACCORDINGLY URGED TO
CONSULT WITH THEIR TAX ADVISORS REGARDING  THE APPLICABILITY OF THE FOREIGN  TAX
CREDIT RULES TO THEIR PARTICULAR CIRCUMSTANCES.

GAIN OR LOSS FROM DISPOSITIONS

     Subject  to  the PFIC  rules discussed  below, a  US Holder  will generally
recognize taxable gain or loss on the disposition of New Hemosol Shares or Labco
Shares, as the case  may be, in  an amount equal to  the difference between  the
amount  realized on such disposition  and the US Holder's  basis in such shares.
Such gain or loss will generally be capital gain or loss. Such gain or loss will
be long-term capital gain or loss if the applicable shares have been held by the
US Holder for more than  one year. The maximum rate  of U.S. federal income  tax
applicable  to  the  net  long-term capital  gains  of  non-corporate taxpayers,
including individuals, is currently 15%. Deductibility of capital losses by both
corporate and non-corporate US Holders is subject to limitations.

PASSIVE FOREIGN INVESTMENT COMPANY

Summary

     U.S. persons that own shares of a non-U.S. corporation deemed to be a  PFIC
are  subject to  special rules  under the Internal  Revenue Code.  Unless a U.S.
person makes certain elections, such U.S. person will be subject to adverse  tax
consequences  under the PFIC rules upon sale or other disposition of such shares
or upon the receipt of an "excess distribution" from the PFIC. Hemosol  believes
that    it    was   likely    deemed   a    PFIC    for   its    taxable   years

                                        90


2001 through 2003,  and may  also have  been deemed to  be a  PFIC in  preceding
years.  Consequently, it is likely that the New Hemosol Shares Distribution will
constitute an "excess distribution" even if, as currently expected, Labco is not
considered to be a PFIC for the 2004 taxable year in which such distribution  is
made.  This "excess distribution" will result  in adverse tax consequences to US
Holders who failed or fail to make certain elections as described below.

     If a US Holder made a valid "QEF Election" or "Mark-to-Market Election" (as
these terms are defined below) with respect to the first year during its holding
period in  which Labco  (then Hemosol)  qualified as  a PFIC,  the U.S.  federal
income  tax consequences  of the consummation  of the Arrangement  should not be
affected by the fact that Hemosol is  a PFIC. A US Holder who purchased  Hemosol
Shares  during the taxable year  2003 should still be  able to make an effective
QEF Election or  Mark-to-Market Election. Moreover,  a US Holder  who failed  to
make  a valid QEF Election or Mark-to-Market  Election with respect to the first
year during its holding period in which Labco (then Hemosol) qualified as a PFIC
may reduce  some of  the adverse  tax  consequences of  the New  Hemosol  Shares
Distribution by making a "Gain Recognition Election" or a "Deemed Sale Election"
(as  these terms are defined below) or  by making a Mark-to-Market Election with
respect to the taxable year 2003.

Definition of a PFIC; Certain Other Definitions and Special Rules

     A non-U.S. company will be  treated as a PFIC  for any taxable year  during
which  either (i) 75% or more of its  gross income is passive income or (ii) 50%
or more of the  average quarterly value  of its assets  consists of assets  that
produce,  or are held for  the production of, passive  income. For this purpose,
passive income generally  includes dividends, interest,  royalties, rent  (other
than  rents and royalties derived in the  active conduct of a trade or business)
and gains from the sale  or exchange of assets  that produce passive income.  In
determining  whether a corporation is  a PFIC, it will  be treated as owning its
proportionate share of the assets,  and as receiving directly its  proportionate
share  of  the  income,  of  any  corporation  in  which  it  owns,  directly or
indirectly, at least 25% of the capital stock by value.

     An "excess distribution" is any distribution on the shares of a PFIC during
a given taxable year if, and to the extent that, the amount of such distribution
exceeds 125% of the average amount distributed during the three preceding  years
(or,  if shorter, the US Holder's holding  period in such shares). The amount of
any "excess distribution"  or any gain  from sale or  other disposition of  PFIC
shares is allocated rateably over the US Holder's holding period, and the amount
allocated to the current taxable year and any years during which the corporation
was  not  a PFIC  is taxed  as ordinary  income. The  amount allocated  to prior
taxable years in which the company was a PFIC is taxed at the highest applicable
marginal rate in effect  for such year,  and in addition  an interest charge  is
imposed  to recover  the deemed  benefit from  the deferred  payment of  the tax
attributable to such year.

     Dividends paid by  a PFIC  are not "qualified  dividends" as  to which  the
preferential  15%  rate is  available. Additionally,  a  US Holder  who inherits
shares of a PFIC is not eligible to claim any basis step-up measured by the fair
market value of such shares on the estate tax valuation date (generally the date
of death).  Instead,  such  US Holder  would  have  a tax  basis  equal  to  the
decedent's basis in the PFIC shares, if lower than such fair market value.

Qualified Electing Fund Election

     A  US Holder  may avoid some  of the  adverse tax consequences  of the PFIC
rules described above  (other than the  ineligibility for the  reduced tax  rate
applicable  to  "qualified  dividends")  by  making  a  qualified  electing fund
election ("QEF Election") with respect to the shares of the PFIC, provided  that
the  QEF Election is in effect  for each of the taxable  years (i) for which the
applicable non-U.S. corporation is a PFIC and (ii) that includes any portion  of
such  US Holder's holding period for the shares.  A US Holder who has made a QEF
Election is required to  include in gross  income for each  taxable year (i)  as
ordinary  income, such US Holder's pro  rata share of the non-U.S. corporation's
ordinary income for the taxable year,  and (ii) as long-term capital gain,  such
US  Holder's pro rata share  of the non-U.S. corporation's  net capital gain for
the taxable year. In general, an electing US Holder is to include these  amounts
in  income regardless  of whether  it receives  any cash  distributions from the
non-U.S. corporation.  Although an  electing U.S.  person may  further elect  to
defer  this income  recognition until  it actually  receives a  distribution, an
interest charge will be imposed on  the tax due when distributions are  actually
made (or when the shares are sold or transferred).

                                        91


     An  electing US Holder's  basis in its  shares is increased  to reflect any
undistributed income  that  such US  Holder  recognizes as  a  result of  a  QEF
Election.  Distributions of  income that has  previously been subject  to tax by
reason of a QEF Election will reduce a US Holder's basis in its shares, but  are
not required to be included in income for U.S. federal income tax purposes.

     Although  a  determination  as  to  a  corporation's  PFIC  status  is made
annually, once it has been determined that  a corporation is a PFIC for a  given
taxable  year,  such  determination  will  generally  apply  to  shares  of that
corporation held by  U.S. persons during  such taxable year  and all  subsequent
taxable  years, whether  or not  that corporation is  a PFIC  in such subsequent
years. However, a US Holder who makes the QEF Election for the first year the US
Holder holds or is deemed to hold shares of the applicable corporation for which
such corporation is determined to  be a PFIC, is not  subject to the PFIC  rules
for the years that such corporation is not a PFIC.

     The  QEF Election is made on  a shareholder-by-shareholder basis and can be
revoked only with the consent of the Internal Revenue Service. A US Holder makes
a QEF Election  by attaching a  completed Form 8621,  including the  information
provided  in the  PFIC annual  information statement,  to its  timely filed U.S.
federal income tax return  and by filing  a copy of the  form with the  Internal
Revenue  Service. Even  if a  US Holder  does not  make a  QEF Election,  if the
applicable company is a  PFIC, such US  Holder must annually  file with its  tax
return  and with the Internal  Revenue Service a completed  Form 8621. A copy of
Form 8621 and the related instructions will be available at www.hemosol.com.

     US Holders who purchased Hemosol Shares in 2003 should make a QEF  Election
by  attaching  a  completed Form  8621,  including the  information  provided in
Hemosol's 2003 PFIC  annual information  statement, to their  timely filed  U.S.
federal  income tax return  for 2003 and by  filing a copy of  the form with the
Internal Revenue Service. Because Hemosol does  not expect to have net  ordinary
earnings  or capital gain  for the taxable  year 2003, a  QEF Election would not
produce taxable  income to  an electing  US  Holder in  2003. Moreover,  if,  as
expected,  Labco is  not a  PFIC for the  taxable year  2004, no  amount will be
includible in income  as a  result of  the QEF Election  for 2004.  In order  to
comply with the requirements of a QEF Election, a US Holder must receive certain
information  from the non-U.S.  corporation. As indicated  in its prior filings,
Hemosol agreed to supply  requesting US Holders with  the information needed  to
report  income  and  gain pursuant  to  the QEF  Election  in the  event  it was
classified as a  PFIC. US  Holders are referred  to Hemosol's  2003 PFIC  annual
information  statement,  as  required by  the  PFIC regulations,  which  will be
available at www.hemosol.com.

     US Holders may not make a QEF  Election with respect to warrants or  rights
to  acquire shares, or with  respect to shares acquired  through the exercise of
warrants or rights. This  summary does not address  the U.S. federal income  tax
consequences  of a US Holder holding warrants  or rights to acquire shares or of
holding shares acquired  through the  exercise of  such warrants  or rights.  US
HOLDERS  SHOULD CONSULT THEIR  TAX ADVISORS CONCERNING  THE PFIC CONSEQUENCES OF
HOLDING WARRANTS  OR RIGHTS  TO ACQUIRE  SHARES OR  OF HOLDING  SHARES  ACQUIRED
THROUGH THE EXERCISE OF SUCH WARRANTS OR RIGHTS.

Mark-to-Market Election

     A  US Holder may avoid  some of the adverse  consequences of the PFIC rules
described  above  (other  than  the  ineligibility  for  the  reduced  tax  rate
applicable  to qualified dividends) by  making a valid "mark-to-market" election
(the "Mark-to-Market  Election").  A US  Holder  holding shares  in  a  non-U.S.
corporation  which is treated as a PFIC could  elect to mark the stock to market
annually, recognizing as ordinary  income or loss each  year an amount equal  to
the  difference between  the US  Holder's adjusted  tax basis  in the applicable
shares and their fair market value. Losses  would be allowed only to the  extent
of  net  mark-to-market gain  previously  included by  the  US Holder  under the
election in previous taxable years. In general, an electing US Holder's basis in
its shares is adjusted  to reflect any  ordinary income or  loss (to the  extent
allowed)  recognized as  a result of  a Mark-to-Market Election;  a special rule
applies in  the  case of  an  electing  US Holder  who  owns shares  in  a  PFIC
constructively  through non-U.S.  entities. A Mark-to-Market  Election cannot be
revoked  without  the  consent  of  the  Internal  Revenue  Service  unless  the
underlying shares cease to be marketable.

     US  Holders who purchased Hemosol Shares in  2003 and elected not to make a
QEF Election may make  a Mark-to-Market Election by  attaching a completed  Form
8621  to their  timely filed  U.S. federal  income tax  return for  2003. If, as
expected, Labco is  not a  PFIC for  the taxable year  2004, no  amount will  be
includible in income as a result of the Mark-to-Market Election for 2004.
                                        92


     A  US Holder  who failed  to make  a valid  QEF Election  or Mark-to-Market
Election for the first year during his holding period in which Hemosol qualified
as a PFIC  may nevertheless  purge his  Hemosol Shares  of their  PFIC taint  by
making  a Mark-to-Market  Election for  the taxable year  2003. A  US Holder who
elects to  purge  the  PFIC  taint  from  its  Hemosol  Shares  by  effecting  a
Mark-to-Market  Election for the taxable year  ending December 31, 2003, will be
required to recognize as gain (i)  any distribution with respect to its  Hemosol
Shares  during the taxable year  ending December 31, 2003,  (ii) any gain from a
disposition of its Hemosol  Shares during the taxable  year ending December  31,
2003,  and (iii) the amount of  excess, if any, of the  fair market value of its
Hemosol Shares on December 31, 2003 over its adjusted tax basis in such  shares.
An  electing US Holder will increase its adjusted basis in its Hemosol Shares by
the amount of such excess.  All such amounts will be  subject to the PFIC  rules
that  treat such  gains as  ordinary income and  commencing in  the taxable year
2004, such US Holder will not be subject  to the PFIC rules with respect to  its
Labco  Shares and hence, the New Hemosol  Shares Distribution will not result in
adverse PFIC tax consequences to such electing US Holder.

     US HOLDERS ARE URGED TO CONSULT WITH THEIR OWN TAX ADVISORS WITH RESPECT TO
THEIR  SPECIFIC   TAX  CONSEQUENCES,   INCLUDING  THEIR   ABILITY  TO   MAKE   A
MARK-TO-MARKET ELECTION.

Gain Recognition Election and Deemed Sale Election

     Although  a  determination  as  to  a  corporation's  PFIC  status  is made
annually, once it has been determined that  a corporation is a PFIC for a  given
taxable  year,  such  determination  will  generally  apply  to  shares  of that
corporation held by U.S. persons during such taxable year, for subsequent years,
whether or not that corporation is a  PFIC in such subsequent years, unless  the
U.S.  shareholder has made  a valid QEF Election  or Mark-to-Market Election. As
noted above, Hemosol believes that it was  likely deemed a PFIC with respect  to
the  taxable years 2001  through 2003, and  may also be  deemed to be  a PFIC in
preceding years.  Consequently, unless  such  elections have  been made,  it  is
likely  that  the New  Hemosol Shares  Distribution  will constitute  an "excess
distribution" even if Labco is not considered to be a PFIC for the 2004  taxable
year.

     A  US Holder who has failed to  make a valid QEF Election or Mark-to-Market
Election for the first year during his holding period in which Hemosol qualified
as a PFIC  may nevertheless  purge his  Hemosol Shares  of their  PFIC taint  by
making a Gain Recognition Election or Deemed Sale Election described herein. If,
as expected, Labco is no longer a PFIC for the 2004 taxable year, US Holders may
purge  the PFIC taint by making an  election to have their Hemosol Shares deemed
sold, solely for purposes of the PFIC rules, on the last day of the taxable year
in which Hemosol qualified  as a PFIC (a  "Gain Recognition Election"). Even  if
Labco  is treated as a PFIC for the  2004 taxable year, US Holders may purge the
PFIC taint by effecting two elections in conjunction: (i) a QEF Election for the
2004 taxable year, and (ii)  an election to have  the Labco Shares deemed  sold,
solely for purposes of the PFIC rules, on the first day of the 2004 taxable year
(the "Deemed Sale Election").

     While  uncertain, Hemosol expects that if the Arrangement is consummated in
2004, Labco will not qualify as a PFIC in  2004. If Labco is not a PFIC for  its
taxable  year ending October 31,  2004, a US Holder  may make a Gain Recognition
Election (but not a Deemed Sale Election) to have its Hemosol Shares deemed sold
as of December 31, 2003.  If Labco is nevertheless a  PFIC for its taxable  year
ending  October 31, 2004, a US Holder may make a Deemed Sale Election (but not a
Gain Recognition Election) to have its Hemosol Shares deemed sold as of  January
1,  2004 and  to have  its Hemosol  Shares subject  to the  rules under  the QEF
Election thereafter.

     Upon making a Gain Recognition Election, the gain, if any, from the  deemed
sale  is taxed as an excess distribution. The gain would be equal to the excess,
if any, of the value of Hemosol Shares on December 31, 2003 over the electing US
Holder's basis in such shares. To compute the tax consequences on such gain: (i)
the gain is  allocated rateably over  the US Holder's  holding period, (ii)  the
amount  allocated to the current  taxable year and any  prior years during which
Hemosol was  not a  PFIC  is taxed  as ordinary  income,  and (iii)  the  amount
allocated to any prior taxable years in which Hemosol was a PFIC is taxed at the
highest applicable marginal rate in effect for each year, and an interest charge
is  imposed to recover the  deemed benefit from the  deferred payment of the tax
attributable to each year. A US Holder that recognizes gain from the deemed sale
will increase its  adjusted basis  in its  Labco shares  by the  amount of  gain
recognized. For purposes of determining whether a subsequent sale or disposition
of  the shares results in a short or long-term capital gain or loss, the holding
period in the shares includes the period  prior to the date of the deemed  sale.
Any loss realized on the deemed sale is not recognized.

                                        93


     Upon  making a Deemed Sale Election, the gain, if any, from the deemed sale
is taxed as an excess  distribution. The gain would be  equal to the excess,  if
any,  of the  value of Hemosol  Shares on January  1, 2004 over  the electing US
Holder's basis  in  such shares.  The  tax  consequences of  such  deemed  sale,
including  the  adjustments to  the tax  basis  and the  holding period  in such
shares, are as described above with respect to the Gain Recognition Election.

     The Gain Recognition Election may be  made either (i) with the US  Holder's
original  return for the tax year that includes the last day of the last year of
Hemosol during which  it qualified as  a PFIC (which  we expect to  be the  2003
calendar  year); or (ii) by filing an amended return for such tax year. The Gain
Recognition Election  is made  by attaching  either  a Form  8621 or  a  special
statement  to  the applicable  tax return  and  by paying  the required  tax and
interest charges.  A copy  of Form  8621 and  the related  instructions will  be
available at www.hemosol.com.

     The  Deemed Sale Election is made in the US Holder's return for the taxable
year that includes the deemed sale date. If the US Holder and the PFIC have  the
same  taxable year, the Deemed Sale Election may  be made either (i) with the US
Holder's original return for  the tax year  that includes the  first day of  the
first  taxable year with  respect to which  the US Holder  made the QEF Election
(which we expect to  be the 2004  calendar year); or (ii)  by filing an  amended
return  for such tax year. If the US  Holder and the PFIC have different taxable
years, the  Deemed Sale  Election must  be made  in an  amended return  for  the
taxable  year that included  the deemed sale  date. The Deemed  Sale Election is
made by  filing a  Form 8621  to the  applicable tax  return and  by paying  the
required tax and interest charges.

     US  HOLDERS WHO HAVE NOT  MADE A QEF ELECTION  OR A MARK-TO-MARKET ELECTION
WITH RESPECT TO THEIR  HEMOSOL SHARES ARE ENCOURAGED  TO CONSULT WITH THEIR  OWN
TAX  ADVISORS WITH RESPECT TO THEIR SPECIFIC TAX CONSEQUENCES, INCLUDING THE TAX
CONSEQUENCES OF MAKING A GAIN RECOGNITION ELECTION OR A DEEMED SALE ELECTION.

Applications of the PFIC Rules to New Hemosol

     As New Hemosol will  continue to hold, through  its interests in the  Blood
Products Partnership, substantially all of the assets and operations of Hemosol,
New Hemosol does not expect to earn any revenues from the sale of HEMOLINK until
it  introduces HEMOLINK into the U.K. or U.S. markets and subsequently other key
European countries. Accordingly, New Hemosol does  not expect that it will  have
net  ordinary  earnings until  at  least such  time,  although there  can  be no
assurance as to  this issue.  As explained  above, a US  holder may  make a  QEF
Election or a Mark-to-Market Election with respect to its New Hemosol Shares.

     New  Hemosol  currently expects  that a  substantial  portion of  its gross
income in  the 2004  taxable year  will consist  of interest  and other  passive
income. It is therefore likely that New Hemosol will be classified as a PFIC for
U.S.  federal income  tax purposes  for the  2004 taxable  year. Further,  it is
possible that New  Hemosol will  be classified as  a PFIC  in subsequent  years.
However,  New Hemosol anticipates  that it would  cease to be  a PFIC before the
first year in which it expects to  have net ordinary income or net capital  gain
that  would be  taxable to US  Holders who made  a QEF election  with respect to
their Hemosol Shares.

     US Holders should consider making a QEF Election with respect to their  New
Hemosol  Shares for the taxable year 2004, whether or not they have made such an
election, or any other election, with  respect to their Hemosol Shares or  Labco
Shares.  Because New Hemosol  does not expect  to have net  ordinary earnings or
capital gain for  the taxable year  of 2004,  a QEF Election  would not  produce
taxable  income to an electing  US Holder in 2004. As  was true for Hemosol, New
Hemosol will agree to supply requesting  US Holders with the information  needed
to  report income  and gain  pursuant to  the QEF  Election in  the event  it is
classified as a PFIC.

TAX CONSEQUENCES FOR NON-US HOLDERS OF HEMOSOL SHARES, NEW HEMOSOL SHARES AND
LABCO SHARES

     Except as  described in  "Information  Reporting and  Back-Up  Withholding"
below,  a person  other than  a US  Holder holding  Hemosol Shares,  New Hemosol
Shares or Labco Shares will not be subject to U.S. federal income or withholding
tax on the payment of  dividends on, and the  proceeds from the disposition  of,
such  shares, unless: (i) such item is effectively connected with the conduct by
such non-US Holder of a trade or business in the United States and, in the  case
of  a resident of a country that has  a treaty with the United States, such item
is attributable to a  permanent establishment or, in  the case of an  individual
under certain treaties, a fixed place of business, in the United States; or (ii)
the  non-US Holder is an individual who holds such shares as a capital asset and
is present in the United States for 183 days or more in the taxable year of  the
disposition and does not qualify for an exemption.

                                        94


INFORMATION REPORTING AND BACK-UP WITHHOLDING

     US  Holders will generally be subject to information reporting requirements
with respect to dividends paid in the United States on, and on the proceeds from
the sale, exchange or  the dispositions of, Hemosol  Shares, New Hemosol  Shares
and  Labco Shares. In addition, US Holders are subject to back-up withholding at
a statutory  rate (currently  28%) on  dividends paid  in the  United States  on
shares,  and on the sale,  exchange or other disposition  of such shares, unless
the US Holder provides Form W-9 or otherwise establishes an exemption.

     Non-US Holders will generally  not be subject  to information reporting  or
back-up  withholding with respect to dividends paid on, or the proceeds from the
sale, exchange or other disposition of,  Hemosol Shares, New Hemosol Shares  and
Labco   Shares,   provided  that   such  non-US   Holder  provides   a  taxpayer
identification number, certifies to its foreign status, or otherwise establishes
an exemption.

     Back-up withholding is not an additional tax and the amount of any  back-up
withholding  will be allowed  as a credit  against a US  or non-US Holder's U.S.
federal income tax liability and may  entitle such holder to a refund,  provided
that certain required information is furnished to the Internal Revenue Service.

RESIDENTS OF JURISDICTIONS OUTSIDE CANADA AND THE UNITED STATES

     THIS  CIRCULAR DOES NOT  ADDRESS ANY TAX  CONSIDERATIONS OF THE ARRANGEMENT
OTHER THAN  CANADIAN  AND  UNITED  STATES  FEDERAL  INCOME  TAX  CONSIDERATIONS.
SECURITYHOLDERS  WHO ARE  RESIDENT IN  JURISDICTIONS OTHER  THAN CANADA  AND THE
UNITED STATES  SHOULD  CONSULT  THEIR  TAX ADVISORS  WITH  RESPECT  TO  THE  TAX
IMPLICATIONS  OF THE ARRANGEMENT, INCLUDING  ANY ASSOCIATED FILING REQUIREMENTS,
IN SUCH  JURISDICTIONS  AND  WITH  RESPECT  TO  THE  TAX  IMPLICATIONS  OF  SUCH
JURISDICTIONS  OF OWNING NEW HEMOSOL  SHARES AND LABCO CLASS  A SHARES AFTER THE
ARRANGEMENT.  SECURITYHOLDERS  SHOULD  ALSO  CONSULT  THEIR  OWN  TAX   ADVISORS
REGARDING  PROVINCIAL OR TERRITORIAL TAX CONSIDERATIONS OF THE ARRANGEMENT OR OF
HOLDING NEW HEMOSOL SHARES AND LABCO CLASS A SHARES.

                                        95


                                  RISK FACTORS

     The following are certain factors relating  to New Hemosol and Labco  which
Securityholders should consider in evaluating whether to approve the Arrangement
Resolution.  The following information is a summary only of certain risk factors
and is  qualified  in  its  entirety  by reference  to,  and  must  be  read  in
conjunction with, the detailed information appearing elsewhere in this Circular.
These  risks and  uncertainties are  not the  only ones  facing New  Hemosol and
Labco. Additional risks  and uncertainties relating  to events or  circumstances
which  are not currently known to Hemosol, New Hemosol or MDS, or which Hemosol,
New  Hemosol  or  MDS  currently  considers  immaterial,  may  also  impair  the
operations of New Hemosol or Labco. If any such events or circumstances actually
occur,  the business, financial condition or liquidity and results of operations
of New Hemosol and/or Labco could be materially adversely affected.

RISKS RELATING TO NEW HEMOSOL

     The following risk  factors are relevant  to New Hemosol,  the New  Hemosol
Shares  and the New Hemosol Convertible Securities. Since the principal asset of
New Hemosol  will  be  its  93%  partnership  interest  in  the  Blood  Products
Partnership,  the  principal  risks factors  relevant  to New  Hemosol,  the New
Hemosol Shares and the New Hemosol Convertible Securities are those relating  to
the  Blood  Products  Partnership. See  "Risks  Relating to  the  Blood Products
Partnership" below. As well, since Labco will hold the remaining 7%  partnership
interest  in the Blood Products Partnership,  substantially all of the risks set
out in  "Risks  Relating to  the  Blood  Products Partnership"  below  are  also
inherent in owning a Labco Share. Since the Blood Products Business prior to the
Arrangement  is  owned and  operated by  Hemosol,  the risks  set out  in "Risks
Relating to the Blood Products Partnership" below are substantially the same  as
those set out in detail starting on page 25 of Hemosol's Annual Information Form
dated   May  27,   2003  incorporated   by  reference   in  this   Circular  and
Securityholders should  consider  these  detailed  risk  factors  in  evaluating
whether to approve the Arrangement Resolution.

RISKS RELATING TO THE BLOOD PRODUCTS PARTNERSHIP

GENERAL BUSINESS RISKS

The Blood Products Partnership's ability to continue as a going concern is
dependent upon its ability to secure additional financing.

     The  Blood Products  Partnership's ability to  continue as  a going concern
will be dependent upon the ability to secure additional financing in order to be
able to continue its  product development activities,  implement the Cascade  at
the Hemolink Building and successfully bring its products to market.

     New Hemosol will continue the current activities of Hemosol with respect to
the   attraction  of  strategic  investors   and  relationships  with  financial
institutions to obtain additional financing in several different forms. However,
the successful  conclusion of  these transactions  cannot be  predicted at  this
time.  Should these  efforts be  unsuccessful, there  will be  substantial doubt
about the Blood Products Partnership's ability to continue as a going concern.

The Blood Products Partnership's products are in various stages of development
and have not yet been produced or marketed commercially, making it difficult to
evaluate its business.

     Hemosol's operations to  date have  consisted primarily  of developing  and
testing  its products, and the Blood Products Partnership will have no operating
history upon which to evaluate its business and prospects. To succeed, the Blood
Products Partnership must develop its products on a commercial scale, which will
require,  among  other  things,  obtaining  appropriate  regulatory   approvals,
identifying  and  successfully  penetrating  key markets  for  its  products and
selling sufficient quantities of its products  at the margins necessary to  fund
the Blood Products Partnership's continuing operations and growth strategy.

The Blood Products Partnership's failure to retain and attract personnel could
harm its business, operations and product development efforts.

     The  Blood  Products  Partnership's  products  will  require  sophisticated
management, research  and  development,  marketing  and  sales,  regulatory  and
clinical  development personnel.  The Blood Products  Partnership's success will
depend on its ability  to attract, train and  retain such personnel. The  market
for  the  highly  trained personnel  that  the Blood  Products  Partnership will
require is very competitive, due to the limited number of people available  with
the

                                        96


necessary  technical skills and understanding of its products and technology. In
addition, Hemosol previously terminated the employment of substantially all  its
employees, which will restrict the Blood Products Partnership's activity levels.
In  order for the Blood  Products Partnership to resume  the clinical trials for
HEMOLINK and  implement  the  Cascade  at  commercial  levels  at  the  Hemolink
Building,  it will require  new employees who  may not be  available or would be
difficult to replace in the  time-frame required or at competitive  compensation
rates.  If the Blood Products Partnership  fails to retain and attract qualified
personnel, its business operations and product development efforts will suffer.

The Blood Products Partnership's intellectual property rights may not provide
meaningful commercial protection for its products. This could enable third
parties to use the Blood Products Partnership's technology, or very similar
technology, and could reduce its ability to compete in the market.

     The Blood Products Partnership will be relying on patent, copyright,  trade
secret  and trademark  laws to limit  the ability  of others to  compete with it
using the same or  similar technology. However, these  laws afford only  limited
protection  and  may not  adequately  protect the  Blood  Products Partnership's
rights to the extent necessary to sustain any competitive advantage it may have.
The  Blood  Products  Partnership's  patents,  or  those  it  licenses,  may  be
challenged,  invalidated or designed around by third parties. The Blood Products
Partnership's patent applications may not issue  as patents in a form that  will
be  advantageous  to  it,  or  at  all.  If  the  Blood  Products  Partnership's
intellectual property  does  not prove  to  have sufficient  protection  against
competition, its competitors could compete more directly with the Blood Products
Partnership.   Moreover,  if  the  Blood  Products  Partnership  loses  any  key
personnel, it may not be able to  prevent the unauthorized disclosure or use  of
the  Blood Products Partnership's technical knowledge  or other trade secrets by
those  former   employees   despite   the   existence   of   nondisclosure   and
confidentiality  agreements and  other contractual  restrictions to  protect the
Blood Products Partnership's proprietary technology.

The Blood Products Partnership's success will depend partly on its ability to
operate without infringing the proprietary rights of others.

     Third parties  may claim  that the  Blood Products  Partnership's  products
infringe  their intellectual  property rights. This  risk is  exacerbated by the
fact that the validity and breadth of medical technology patents involve complex
legal  and  factual  questions  for  which  important  legal  principles  remain
unresolved.  The Blood Products  Partnership's competitors or  others may assert
that its products and the methods it  employs may be covered by patents held  by
them.

     In  addition, because  patent applications  can take  many years  to issue,
there may  be  currently  pending  applications  of  which  the  Blood  Products
Partnership is unaware, which may later result in issued patents which the Blood
Products  Partnership's products infringe. There  could also be existing patents
of which  the Blood  Products Partnership  is not  aware that  its products  may
infringe.  As the Blood Products Partnership commercializes its hemoglobin-based
oxygen carriers and  as competitors commercialize  other hemoglobin  replacement
products  in the future,  the possibility of  patent infringement claims against
the Blood Products Partnership may increase.

     If the Blood Products Partnership  loses a patent infringement lawsuit,  it
could  be  required to  pay substantial  monetary  damages. Moreover,  the Blood
Products Partnership could be prevented from selling its products unless it  can
obtain  a licence to use  technology or ideas covered by  any such patent or are
able  to  redesign   the  Blood   Products  Partnership's   products  to   avoid
infringement.  A licence may not  be available at all  or on terms acceptable to
the Blood Products  Partnership, or the  Blood Products Partnership  may not  be
able  to  redesign  the  Blood  Products  Partnership's  products  to  avoid any
infringement. Modification  of  the  Blood Products  Partnership's  products  or
development  of new  products could  require the  Blood Products  Partnership to
conduct additional  clinical  trials  and  to revise  its  filings  with  health
regulatory  agencies,  which could  be time-consuming  and expensive.  The Blood
Products Partnership will be materially harmed  if it is unable to  successfully
defend  any infringement  litigation relating to  these patents or  is unable to
obtain any required  licence or sublicence  to these patents.  In addition,  the
costs  and time commitments involved in litigation could harm the Blood Products
Partnership's business.

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If the Blood Products Partnership is unable to develop new products to keep pace
with technological developments in the biomedical field, its revenues may be
adversely affected.

     The  biomedical  field,  which  is  the  market  for  the  Blood   Products
Partnership's  products, is characterized by rapid technological change, new and
improved product introductions, changes in regulatory requirements and  evolving
industry standards.

     Although  the  Blood Products  Partnership  is currently  developing  a new
series of products  based on  research and development  activities conducted  to
date,  the Blood  Products Partnership  may not  be successful  in developing or
introducing to the market these or any other new products or technology. If  the
Blood  Products  Partnership  fails to  develop  and  deploy new  products  on a
successful and timely  basis, the Blood  Products Partnership may  no longer  be
competitive  and  be unable  to recoup  the research  and development  and other
expenses incurred to develop and test new products.

The Blood Products Business (as previously operated by Hemosol) has a history of
losses and expects future losses.

     Hemosol has  had losses  from operations  for each  fiscal year  since  its
inception.  It is expected that the  Blood Products Partnership will continue to
incur losses from operations until it  is able to commercialize HEMOLINK  and/or
products  developed under its strategic alliance  with ProMetic. While the Blood
Products Partnership will also  continue to advance a  number of initiatives  to
generate  revenue in  the near term  through the  provision of bio-manufacturing
services at the Hemolink Building to third parties in the life sciences  sector,
it  is  expected that  the Blood  Products Partnership's  net cash  outflows and
operating and net losses will continue for the near term. If the Blood  Products
Partnership's  products under  development are  not commercially  viable, it may
never achieve profitability.  Even if  the Blood  Products Partnership  achieves
profitability,  it may not  be able to  sustain or increase  profitability on an
ongoing basis.

The Blood Products Partnership's profitability will be affected if it
experiences product liability claims in excess of its insurance coverage.

     The testing  and  marketing  of medical  products,  even  after  regulatory
approval,  has  an  inherent  risk  of  product  liability.  The  Blood Products
Partnership maintains product liability insurance  coverage in the total  amount
of  $20 million  relating to  Phase I,  II, and  III clinical  trials. The Blood
Products  Partnership  intends  to  obtain   more  extensive  coverage  as   the
development  of  its  products  progresses.  The  Blood  Products  Partnership's
profitability would  be adversely  affected by  a successful  product  liability
claim in excess of its insurance coverage. The Blood Products Partnership cannot
guarantee that product liability insurance will be available in the future or be
available on reasonable terms.

The hemoglobin the Blood Products Partnership obtains for its products could
contain infectious agents.

     Any  product derived from human blood, notwithstanding the rigorous testing
procedures now used  for the  selection of  donor blood,  can conceivably  carry
infectious  agents, known  or as  yet unknown, that  were present  in the source
blood. In the manufacture of HEMOLINK, the procedure by which the hemoglobin  is
purified  includes a sequence  of validated steps to  remove or inactivate viral
and other potentially infectious material. While the Blood Products  Partnership
is confident that its process has achieved the highest standard of purity, there
is  a theoretical and remote  risk that an infectious  agent could remain in the
product or resist these stringent procedures.  If the red blood cells the  Blood
Products  Partnership obtains  contain infectious agents,  it could  result in a
loss of, or a  delay in, the commercialization  of HEMOLINK. Such defects  could
cause  adverse publicity, damage the Blood Products Partnership's reputation and
impair its  ability to  market its  products. In  addition, the  Blood  Products
Partnership may be subject to significant liability claims.

RISKS ASSOCIATED WITH THE STRATEGIC ALLIANCE WITH PROMETIC

Full implementation of the strategic alliance is subject to the execution of
definitive agreements.

     On  December 3, 2003, Hemosol and  ProMetic executed the ProMetic MOU which
detailed the  principal commercial  terms of  a strategic  alliance between  the
parties as well as the agreement in principle of the American National Red Cross
for  the supply of raw materials to the Blood Products Business and the purchase
from the Blood Products Business of specific therapeutic products isolated using
the Cascade (see "Hemosol  Prior to the Arrangement  -- Strategic Alliance  with
ProMetic").   Pursuant  to   the  ProMetic   MOU,  Hemosol   and  ProMetic  have
                                        98


committed to using their  best commercial efforts to  negotiate and execute  all
definitive  agreements  necessary to  fully  implement this  strategic alliance.
There is a risk that  the parties will be unable  to conclude negotiations in  a
manner that is mutually agreeable and, as a result, be unable to arrive at terms
for the definitive agreements that are required to fully implement the strategic
alliance with ProMetic.

     The  execution  of  the ProMetic  MOU  also triggered  the  commencement of
negotiations with the American  National Red Cross with  respect to setting  the
terms of the definitive supply and purchase agreement.

     Hemosol  and/or the Blood Products Business expects  to be in a position to
pursue actual discussions and negotiations with the American National Red  Cross
only upon the execution of definitive agreements with ProMetic. No assurance can
be  provided that the negotiations with the  American National Red Cross will be
pursued by Hemosol  and/or the Blood  Products Business and,  if they are,  that
such  negotiations will  be successful  in defining  and executing  a supply and
purchase agreement between Hemosol  and/or the Blood  Products Business and  the
American  National Red Cross  or any other agreements  required to implement the
terms of the agreement  in principle entered into  by the American National  Red
Cross in connection with the ProMetic MOU.

The Cascade has not been implemented at the commercial scale envisioned by the
ProMetic MOU.

     Hemosol  (or the  Blood Products Partnership)  is expected to  be the first
licensee of  the Cascade  and will  be the  first to  attempt to  implement  the
related  technology  on  a large  commercial  scale. The  principal  process and
technology of the Cascade is comprised of  a series of discrete steps that  have
been  optimized and  aggregated into a  unique sequence. Most  of the individual
steps of the Cascade have, on  a stand-alone basis, demonstrated the ability  to
produce  the product yields and purity  required to achieve the commercial goals
described in the ProMetic MOU. The ability  of the Cascade as a whole,  however,
is  unproven on a commercial scale. Hemosol has conducted significant scientific
and technical analysis of the Cascade and it is expected that the Blood Products
Partnership can  cost-effectively  and profitably  implement  the Cascade  on  a
commercial  scale to successfully achieve the  commercial goals described in the
ProMetic MOU. However, there is no assurance that the Blood Products Partnership
will be able to do so.

RISKS ASSOCIATED WITH THE COMMERCIALIZATION OF PRODUCTS DEVELOPED BY THE BLOOD
PRODUCTS PARTNERSHIP

The Blood Products Partnership is dependent on substantial working capital for
the successful commercialization of its products.

     The Blood Products Partnership will require substantial working capital  to
properly  develop,  manufacture  and sell  its  products. It  is  expected that,
following the  proactive  steps taken  in  April 2003  to  reduce cash  burn  at
Hemosol,  the  Blood Products  Partnership's cash  resources, together  with the
proceeds from the  Special Warrant Offering  and the $16  million cash  infusion
provided  as part of the Arrangement, will be sufficient to fund its anticipated
operating and capital expenditures through the  middle of 2005, after which  the
Blood Products Partnership will require additional financing. The Blood Products
Partnership's  planned cash  requirements may vary  materially in  response to a
number of factors, including:

     (a)  the cost of  conducting all  required non-clinical  analysis with  the
          objective   of   getting   HEMOLINK  cleared   for   further  clinical
          development;

     (b)  research and development and clinical trial results generally;

     (c)  the achievement  of  key  milestones  associated  with  the  strategic
          alliance with ProMetic;

     (d)  changes in any aspect of the regulatory process; and

     (e)  delays  in obtaining all requisite  regulatory approvals for the Blood
          Products Partnership's products and the Hemolink Building.

     The Blood Products Partnership's capital-raising efforts could involve  the
issuance  and sale of  New Hemosol Shares and/or  the sale of  some of the Blood
Products Partnership's assets.  The Blood Products  Partnership and New  Hemosol
may  not be able to raise any debt or equity financing if and when it is needed.
If any required  financing is  not available, the  Blood Products  Partnership's
ability to continue as a going concern will be in substantial doubt.

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The Blood Products Partnership will have limited manufacturing capabilities and
limited financial resources, which could adversely impact its ability to
commercialize HEMOLINK.

     To  date, Hemosol has  carried out Hemosol's  production activities only on
research and pilot scales. In order to commercialize HEMOLINK successfully,  the
Blood  Products Partnership must  be able to  manufacture HEMOLINK in commercial
quantities, in compliance with regulatory requirements, at acceptable costs  and
in a timely manner. In an effort to significantly shorten the time to profitable
commercialization  of  HEMOLINK, Hemosol  built  the Hemolink  Building  with an
annual capacity of 300,000  units, in anticipation  of regulatory approvals.  In
light  of the recent cessation of clinical  trial activity and the refocusing of
the Hemolink  Building  to  seize  commercial  opportunities  presented  by  the
strategic  alliance with  ProMetic and by  providing bio-manufacturing services,
production of HEMOLINK at a large commercial scale may require the use of  third
party  manufacturing facilities in addition  to the Blood Products Partnership's
own manufacturing facilities. Such  facilities may not  be available within  the
timeline  contemplated for the  effective commercialization of  HEMOLINK or such
facilities as well as the Hemolink Building may require investment by the  Blood
Products  Partnership to install  additional specialized manufacturing equipment
to  permit  the  production  of   HEMOLINK  in  parallel  with  the   activities
contemplated  under the ProMetic MOU. Any facility will also have to be approved
by  regulators  in  the  various  jurisdictions  in  which  the  Blood  Products
Partnership seeks marketing approval for HEMOLINK.

     The  resumption of clinical trial activity related to the commercialization
of HEMOLINK will be  dependent on the outcome  of discussions with the  relevant
regulatory agencies, the Blood Products Partnership's ability to secure adequate
financial  resources and/or  the Blood  Products Partnership's  ability to enter
into a strategic partnership with a  third party that will contribute a  portion
of  the development,  regulatory, commercialization and  marketing resources and
costs that may be required.

Even if the Blood Products Partnership obtains regulatory approvals to market
HEMOLINK, the Blood Products Partnership will be subject to stringent, ongoing
government regulation and plant inspections, which could cause unexpected delays
in the manufacture, marketing and sale of HEMOLINK.

     In order to  seek regulatory  approval for the  marketing and  sale of  its
products,  the Blood Products Partnership  will first successfully complete both
pre-clinical  studies  and  clinical  trials.  These  studies  and  trials  must
demonstrate  that the products are  safe and effective for  the clinical use for
which approval is sought. Even  if regulatory authorities approve HEMOLINK,  its
manufacture, marketing and sale will be subject to ongoing regulation, including
inspection  and  market  surveillance  for  compliance  with  Good Manufacturing
Practice regulations in Canada and  other jurisdictions. Any enforcement  action
resulting  from the  Blood Products Partnership's  failure to  comply with these
requirements could adversely affect the  manufacture and marketing of  HEMOLINK.
In addition, regulatory authorities could withdraw a previously approved product
from  the market  upon receipt  of newly  discovered information  and/or require
additional,  and  potentially  expensive,  studies  in  areas  outside  existing
approved indications. Adverse results from, or unanticipated delays in, clinical
trials  or  failure  to  receive  the  appropriate  regulatory  approvals  could
adversely  impact  the  Blood  Products  Partnership's  business.  Unanticipated
changes  in  existing  regulations  or the  adoption  of  new  regulations could
adversely  affect  the   manufacture  and  marketing   of  the  Blood   Products
Partnership's  products.  Ongoing  government regulation  and  plant inspections
could  cause  unexpected  delays  and   adversely  impact  the  Blood   Products
Partnership's   business.   Failure   to  comply   with   applicable  regulatory
requirements may also result in criminal prosecution, civil penalties, recall or
seizure of products, or partial or total suspension of production.

The Blood Products Partnership may not be able to market or distribute HEMOLINK
effectively.

     The Blood Products Partnership's success will also depend on its ability to
market  and  distribute  HEMOLINK  effectively.  However,  the  Blood   Products
Partnership  will  not have  in  place the  sales  force and  other distribution
arrangements  required  to  market  HEMOLINK  effectively,  and  will  have   no
experience  in commercial sales. In addition, HEMOLINK's commercial success will
depend on  its  acceptance by  the  medical community  and  third-party  medical
insurers as clinically useful, cost-effective and safe.

                                       100


RISKS ASSOCIATED WITH REGULATORY APPROVAL REQUIREMENTS

Failure to obtain necessary regulatory approvals to commercialize HEMOLINK or
any significant delay in obtaining these approvals would harm the Blood Products
Partnership's business.

     On March 13, 2003, based on the recommendation of the DSMB, Hemosol elected
to  review safety data prior to continuing enrolment in Hemosol's cardiac trial.
This trial involved the  use of HEMOLINK in  patients undergoing cardiac  bypass
grafting  surgery. The DSMB's  recommendation was based on  an observation of an
imbalance in the incidence  of certain adverse events  between the HEMOLINK  and
control  groups reflective of myocardial  infarctions. This observation from the
cardiac trial  interim  data may  be  due to  any  number of  reasons  including
variables  in  the  patient  population.  As  a  precaution,  Hemosol  has  also
voluntarily suspended enrolment in its Phase II clinical study involving the use
of HEMOLINK in patients  undergoing orthopaedic surgery.  In June 2003,  Hemosol
completed  an internal review which confirmed the observations of the DSMB of an
imbalance of certain adverse events reflective of myocardial infarctions between
the HEMOLINK and control groups and Hemosol elected to terminate the study early
in order to conduct a full safety analysis. That analysis is continuing and  the
Blood  Products Partnership's objective  will be to  establish an agreement with
the FDA in the fourth quarter of 2004 for a clinical path for HEMOLINK.

     Upon the successful  conclusion of all  requisite clinical trial  activity,
the Blood Products Partnership's ability to ultimately commercialize HEMOLINK is
subject  to  regulatory approvals.  The  Blood Products  Partnership  intends to
market HEMOLINK in  the U.S., Europe  and other international  markets and  will
require  separate  regulatory  approval  from each  jurisdiction.  If  the Blood
Products Partnership does not receive  the appropriate regulatory approvals,  it
will  not be able to market or sell HEMOLINK, and the Blood Products Partnership
business  will  be  adversely  affected.  Regulatory  authorities  also  require
separate  approval  for  each  additional proposed  indication  for  the  use of
HEMOLINK. Hemosol cannot guarantee that the regulatory authorities will  approve
HEMOLINK for each indication proposed.

Regulatory approvals are required for therapeutic protein products.

     The  commercialization  of  all plasma-based  therapeutic  protein products
produced using the Cascade will require the receipt of regulatory approvals  for
each  discrete product.  In circumstances  where the  Blood Products Partnership
will use the Cascade to  produce products that are  already licensed in a  given
market,  the requisite  approval process should  be abridged as  compared to the
approval process  required for  a novel  product such  as HEMOLINK.  Under  this
abridged  scenario, the  Blood Products Partnership,  or the party  for whom the
Blood Products Partnership  will be  manufacturing the  product under  contract,
will  be required  to undertake  clinical trials  to demonstrate  that the given
product is  the  "bio-equivalent"  (i.e.  displays  the  same  or  superior  key
therapeutic  and safety qualities)  as the licensed product  it seeks to compete
against. Where the  Blood Products  Partnership seeks to  commercialize a  novel
product  which does not have a licensed  equivalent, a full scale clinical trial
and approval process,  similar to that  for HEMOLINK, will  be required. If  the
Blood   Products  Partnership  does  not   receive  the  appropriate  regulatory
approvals, it will not be able to  market or sell these products, and the  Blood
Products   Partnership's  business   will  be   adversely  affected.  Regulatory
authorities  also  require  separate  approval  for  each  additional   proposed
indication for the use of such products. The Blood Products Partnership will not
be  able to guarantee  that the regulatory  authorities will approve  any of the
therapeutic products for the indications proposed.

The Blood Products Partnership may be unable to develop and maintain adequate
sources of (i) hemoglobin to meet demand for HEMOLINK and (ii) plasma to meet
the demand for therapeutic protein products.

  Hemoglobin

     Although it is expected that the Blood Products Partnership will be able to
purchase sufficient quantities  of human red  blood cells to  support the  early
stages of HEMOLINK's commercialization, it will need to develop other sources of
hemoglobin  if its  source of supply  is disrupted  or if the  market demand for
HEMOLINK is greater  than anticipated.  The Blood Products  Partnership will  be
advancing proprietary cell expansion technology for the purpose of developing an
additional  or alternative  supply of  hemoglobin from  cells grown  outside the
body. However, the Blood Products  Partnership's cell expansion technology  will
be in the early stages of development.

     The  Blood Products  Partnership will  be utilizing  a number  of other raw
materials and components that are currently provided by sole sourced  suppliers.
The   Blood   Products   Partnership   will  need   to   identify   and  qualify

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alternative backup sources for these components and/or identify other actions to
ensure continuous supply of key materials.

  Plasma

     The commercial activity contemplated under  the ProMetic MOU calls for  the
discovery,  development  and  manufacture  of  therapeutic  and  non-therapeutic
products derived from human blood plasma. Plasma is one of several key  products
that  are supplied  through the donation  of blood at  blood collection centres.
Following collection, plasma can be purchased in bulk quantities from a  variety
of  suppliers, including the American National Red Cross, on a global basis. The
ProMetic MOU includes the  agreement in principle of  the American National  Red
Cross  to  supply the  requisite  raw materials  to  Hemosol (and  to  the Blood
Products Partnership  as the  successor  to Hemosol's  business) and  the  Blood
Products  Partnership will be  permitted to source and  purchase plasma from the
supplier(s) of its choice on a worldwide basis. As such, it is expected that the
Blood Products Partnership  will be  able to purchase  sufficient quantities  of
human  plasma  to support  the  commercialization of  the  products it  seeks to
produce with the Cascade.  However, the Blood Products  Partnership may need  to
develop  alternative sources of plasma if  its primary supplier(s) are unable to
meet the Blood Products Partnership's requirements.

RISKS RELATING TO LABCO

     Since Labco will hold limited  partnership interests in the Blood  Products
Partnership  and the Labs Partnership, substantially all of the risks set out in
"-- Risks  Relating to  the  Blood Products  Partnership"  above and  "--  Risks
Relating  to the Labs Partnership"  below are inherent in  owning a Labco Share.
Accordingly, Shareholders should carefully review  such sections for details  of
the  risks relating to the Blood  Products Partnership and the Labs Partnership,
as well as the following risk factors.

THE SHARE OWNERSHIP OF LABCO BY MDS MAY ADVERSELY AFFECT THE PRICE OF LABCO
CLASS A SHARES.

     Immediately following the Arrangement, MDS will own not less than 47.5%  of
the voting securities of Labco in the form of Labco Class A Shares, but will own
99.56%  of the equity of Labco through a combination of Labco Class A Shares and
Labco Class B Non-Voting Shares.  As a result of its  holdings of Labco Class  A
Shares,  MDS will be in a  position to vote its Labco  Class A Shares on matters
requiring shareholder  approval,  including  the  determination  of  significant
corporate  actions. In  addition, the interests  of MDS may  not correspond with
those of the other holders of Labco Shares. The extent of MDS's share  ownership
may limit the price that investors may be willing to pay in the future for Labco
Class  A  Shares.  See "Labco  After  the  Arrangement --  Description  of Share
Capital".

THE REQUIREMENT OF CERTAIN CONDITIONS PRECEDENT TO THE ACQUISITION OF LABCO
CLASS A SHARES IN CERTAIN CIRCUMSTANCES MAY DISCOURAGE A TAKE-OVER BID FOR THE
LABCO CLASS A SHARES.

     The articles of Labco require that a  person or group wishing to acquire  a
majority of the Labco Class A Shares comply with certain conditions precedent to
the   acquisition  of  Labco  Class  A  Shares  in  those  circumstances.  These
provisions, in  effect,  require  such a  person  or  group to  also  acquire  a
comparable  portion of the Labco Class B Non-Voting Shares at fair market value.
Accordingly, these conditions  precedent may discourage  certain take-over  bids
for the Labco Class A Shares. See "Labco After the Arrangement -- Description of
Share Capital".

RESTRICTIONS ON THE BUSINESS AND ACTIVITIES THAT LABCO MAY UNDERTAKE MAY
ADVERSELY AFFECT THE ABILITY OF LABCO TO RESPOND EFFECTIVELY TO FUTURE EVENTS
AND CIRCUMSTANCES.

     Labco  will be  a limited purpose  corporation, the articles  of which will
contain extensive restrictions on the  business and other activities that  Labco
may  undertake. For example, the articles of  Labco will provide that Labco must
retain and may  not dispose  of its limited  partnership interests  in the  Labs
Partnership  or  the Blood  Products  Partnership, except  in  the circumstances
provided for in the articles, and may not undertake any other business except as
expressly provided in the articles. Further, in addition to any other  approvals
required  by law, such  restrictions may only  be modified with  the approval by
special resolution of  the holders of  Labco Class  A Shares and  Labco Class  B
Non-Voting  Shares,  each  voting  separately  as  a  class.  While restrictions
contained in  the  articles  of  Labco  are designed  to  narrow  the  scope  of
activities undertaken by Labco and thereby minimize the risk that Labco will not
be  able to distribute Distributable  Cash Flow (as defined  in "Labco After the
Arrangement" above) to its shareholders,  events and circumstances may arise  in
the    future   to    which   Labco   may    not   be    able   to   effectively

                                       102


respond due  to its  inability to  undertake certain  corporate activities.  See
"Labco After the Arrangement -- Description of Share Capital".

THE ABSENCE OF A PUBLIC MARKET FOR THE LABCO CLASS A SHARES AND THE LABCO CLASS
B NON-VOTING SHARES MAY ADVERSELY AFFECT THEIR LIQUIDITY.

     Neither  the Labco Class A  Shares nor the Labco  Class B Non-Voting Shares
will be listed or posted for trading on any exchange or market and there can  be
no  assurance that a significant  market through which Labco  Shares can be sold
will develop or be sustained after the  Effective Time. If an active market  for
the  Labco Shares  does not develop,  the liquidity  of the Labco  Shares may be
limited and the market  price for Labco Shares  may not be readily  determinable
and could be subject to significant fluctuations.

THE RESULTS OF LABCO MAY BE ADVERSELY AFFECTED IF CERTAIN LIABILITIES EXISTING
PRIOR TO THE EFFECTIVE TIME ARE NOT FULLY SATISFIED BY THE BLOOD PRODUCTS
PARTNERSHIP.

     Prior  to the Effective Time, Hemosol  carried on an active business, which
included the development and testing of medical products. Under the terms of the
Blood Products  Contribution  Agreement,  the Blood  Products  Partnership  will
expressly assume all liabilities of Hemosol existing prior to the Effective Time
and  pursuant to the  Labco Indemnity Agreement,  the Blood Products Partnership
will agree to indemnify Labco for all such liabilities to the extent that  Labco
suffers  a loss in respect thereof.  However, the Blood Products Partnership may
be unable to fully indemnify  Labco in respect of  all such losses. Such  losses
could be substantial, including but not limited to losses arising as a result of
any  act or  omission in  connection with  any clinical,  pre-clinical and other
studies and tests conducted by  or on behalf of or  sponsored by Hemosol or  any
Subsidiary  or in  which Hemosol  or any Subsidiary  or its  products or product
candidates participated prior to the  Effective Time. Labco's financial  results
and ability to distribute Distributable Cash Flow could be adversely affected in
the event that any such losses are not insured or fully indemnified by the Blood
Products  Partnership.  See "The  Arrangement --  Indemnity Agreements"  and "--
Escrow Agreement".

LABCO, AND BY EXTENSION, HOLDERS OF LABCO CLASS A SHARES AND LABCO CLASS B
NON-VOTING SHARES, WILL NOT RECEIVE COMPENSATION IN THE EVENT THAT THE TAX
LOSSES CANNOT BE UTILIZED, IN WHOLE OR IN PART, BY LABCO DUE TO EVENTS OR
CIRCUMSTANCES EXISTING PRIOR TO THE EFFECTIVE TIME.

     Under the Arrangement Agreement, Hemosol has represented as to, among other
things, the quantum of the Tax Losses, the stated capital of the Hemosol Shares,
and there not having been prior to the Effective Time an acquisition of  control
of  Hemosol. In  the event  that any of  such representations  is incorrect, the
ability of Labco to apply some or all  of the Tax Losses against income will  be
restricted,  or certain other taxable events may be deemed to have occurred such
that the dividends or other distributions  on the Labco Shares will be  reduced.
In  the  event that  any such  representations are  incorrect, holders  of Labco
Shares will  not be  entitled to  any compensation  in their  capacity as  Labco
shareholders  and,  in  particular,  will not  benefit  from  the  MDS Indemnity
Agreement. See "The Arrangement -- Indemnity Agreements".

THE ABILITY OF LABCO TO APPLY THE TAX LOSSES AGAINST INCOME WILL BE COMPROMISED
IN THE EVENT OF AN ACQUISITION OF CONTROL OF LABCO ARISING AFTER THE EFFECTIVE
TIME.

     In the event that a person or group, as determined for purposes of the  Tax
Act, acquires control of Labco after the Effective Time, the ability of Labco to
apply  the Tax Losses against income or to reduce its income tax payable will be
restricted from and after the acquisition of control. There can be no  assurance
that an acquisition of control will not occur.

LABCO IS DEPENDENT ON THE ABILITY OF THE LABS PARTNERSHIP AND THE BLOOD PRODUCTS
PARTNERSHIP TO GENERATE INCOME.

     Labco will be a limited purpose corporation whose sole assets following the
Arrangement  will be its  limited partnership interests  in the Labs Partnership
and the Blood Products Partnership. Although the articles of Labco will  provide
that,  subject to applicable law, Labco  will distribute Distributable Cash Flow
to holders  of Labco  Shares, there  can be  no assurance  regarding either  the
amount  of income to be generated by  the Labs Partnership or the Blood Products
Partnership or amounts  distributed to  Labco. In addition,  the declaration  of
dividends is at the discretion of the Labco Board. The actual amount distributed
in  respect of  Labco Shares  will depend  upon numerous  factors, including the
profitability of  the  Labs  Partnership and  the  Blood  Products  Partnership,
                                       103


fluctuations  in  working capital,  the  sustainability of  margins  and capital
expenditures,  the  risks  described  under  "--  Risks  Relating  to  the  Labs
Partnership"  and "-- Risks Relating to  the Blood Products Partnership" and the
ability of Labco to apply the Tax Losses against income.

LABCO WILL BE DEPENDENT UPON THE LABS PARTNERSHIP FOR SUBSTANTIALLY ALL OF ITS
INCOME.

     As the Blood Products Partnership (which after the Arrangement will operate
the Blood Products Business) is expected  to incur losses from operations  until
it  is  able  to  commercialize HEMOLINK  and/or  products  developed  under its
strategic alliance  with  ProMetic,  Labco  will  be  dependent  upon  receiving
distributions  from the  Labs Partnership for  substantially all  of its income.
Further, the  articles  of  Labco  will impose  extensive  restrictions  on  the
business  that may be carried on by  Labco. Accordingly, Labco will be dependent
upon the ability  of the Labs  Partnership to generate  income and,  indirectly,
MDS,  which will  indirectly retain operational  control over  the Labs Business
through the general partnership interest of MDS Subco.

THERE CAN BE NO ASSURANCE THAT THE TAX ACT OR THE ADMINISTRATIVE PRACTICES OF
CCRA WILL NOT BE CHANGED IN A MANNER THAT ADVERSELY AFFECTS THE ABILITY OF LABCO
TO APPLY THE TAX LOSSES AGAINST INCOME.

     There can be  no assurance that  Canadian federal income  tax laws and  the
administrative  policies and assessing practices  of CCRA respecting the ability
of a  corporation to  apply  previously accumulated  tax losses  against  future
income  or to reduce tax payable will not be changed in a manner which adversely
affects Labco and, by extension, the holders of Labco Shares.

THE ISSUE OF ADDITIONAL LABCO SHARES AFTER THE EFFECTIVE TIME WILL BE DILUTIVE
TO HOLDERS OF LABCO SHARES.

     The articles  of  Labco  will, following  completion  of  the  Arrangement,
authorize  an  unlimited  number of  Labco  Class  A Shares  and  Labco  Class B
Non-Voting Shares. While the articles of Labco strictly limit the  circumstances
in which Labco Class A Shares may be issued, there are no such restrictions with
respect  to  the issuance  of additional  Labco Class  B Non-Voting  Shares. The
issuance of additional Labco Shares may dilute the holdings of holders of  Labco
Shares  and  reduce the  amount of  dividends or  other distributions  per Labco
Share.

US HOLDERS OF HEMOSOL SHARES MAY BE TREATED AS RECEIVING A TAXABLE DISTRIBUTION
FROM LABCO FOR U.S. FEDERAL INCOME TAX PURPOSES.

     US Holders are likely to be treated as receiving a taxable distribution  of
New  Hemosol Shares from Labco for U.S. federal income tax purposes. If Labco is
treated as having earnings and profits  for the taxable year ending October  31,
2004,  then the fair market  value of the deemed  distribution will generally be
taxed as ordinary income to the extent  of such earnings and profits. There  can
be  no assurance  that for U.S.  federal income  tax purposes Labco  will not be
treated as having earnings and profits  for the taxable year ending October  31,
2004.

RISKS RELATING TO THE LABS PARTNERSHIP

THE REVENUES OF THE LABS PARTNERSHIP ARE CAPPED AND DEPENDENT ON GOVERNMENT
HEALTH INSURANCE PROGRAMS.

     Revenues  from the  Labs Business  will be  substantially dependent  on the
Ontario  individual  corporate  caps  established  for  each  company  providing
applicable  services. This funding model prevents  a company from increasing its
revenues by increasing its volume of  testing. At the same time, however,  there
is  a risk that a  company's corporate cap, and  potentially its revenue, may be
decreased if its volume of  testing decreases to the  extent that it bills  less
than its cap in any year. In addition, the current agreement between the MOH and
the  OAML, which establishes the individual corporate caps, expires on March 31,
2005. There can be no certainty as to the terms of future agreements between the
MOH and the OAML.

     Maintaining  or  increasing  the  Labs  Partnership's  revenues  is  highly
dependent  on  the  commitment  of  the Government  of  Ontario  to  funding the
laboratory services performed by the  Labs Partnership. The healthcare  industry
in  general  is  experiencing a  trend  toward cost  containment  and management
expects that  this  trend will  continue  for the  foreseeable  future.  Revenue
constraint pressures on healthcare funding across Canada will likely continue or
may  increase in the future. Any funding  reductions or other changes in payment
policies for healthcare  services could have  a material adverse  effect on  the
Labs Partnership.

                                       104


GOVERNMENT REGULATION OF THE LABS BUSINESS IS SIGNIFICANT AND LICENCE RENEWALS
ON SATISFACTORY TERMS ARE NOT ASSURED.

     Community-based  laboratories  are  subject to  significant  regulation and
licensing  requirements  from  all  levels  of  government.  The  licensing  and
regulatory  requirements relate to, among other  matters, the conduct of testing
and reporting  results,  the handling  and  disposal of  medical  specimens  and
infectious  and hazardous  waste and other  materials, the safety  and health of
employees and the  proficiency of staff.  Community-based laboratories are  also
subject  to periodic inspections by regulatory agencies. The licences to operate
a community-based laboratory are granted for a limited term (usually for a  term
of  one year) and their renewal is  subject to government approval. A failure by
the Labs Partnership  to comply  with laws and  regulations could  expose it  to
significant  penalties and may result in  civil or criminal sanctions, including
the revocation of licences, certifications and authorizations, the denial of the
right to conduct  business and  the exclusion from  participation in  government
healthcare  programs.  The imposition  of any  of these  sanctions could  have a
material adverse effect on the Labs Partnership. Licences are rarely issued  and
if  a laboratory  or clinic  operated by  the Labs  Partnership had  its licence
revoked, there is no assurance that it will be issued a new licence.

     In addition  to  existing  government  healthcare  regulations,  there  are
ongoing  initiatives  at the  federal  and provincial  levels  for comprehensive
reforms to existing legislation and policy governing the provision of healthcare
services, including the payment for and availability of particular services. The
Labs  Partnership  believes  that  such   initiatives  will  continue  for   the
foreseeable  future  and could  increase  the cost  of  compliance for  the Labs
Partnership. Certain aspects of these reforms, if adopted, could materially  and
adversely  affect  the  Labs  Partnership's  business,  financial  condition and
results of operations.

THE SUSTAINED INTERRUPTION OF SERVICES PERFORMED BY THE LABS BUSINESS COULD
ADVERSELY AFFECT RESULTS.

     Timely,  effective   service  is   essential   to  maintaining   the   Labs
Partnership's   reputation  and  revenue  stream.   The  majority  of  the  Labs
Partnership's laboratory services  will be performed  at its Central  Laboratory
which  is  located  in Etobicoke,  Ontario.  Any sustained  interruption  of the
services performed at  the Central  Laboratory which  significantly affects  the
volume  of  testing or  the accuracy  and  timeliness in  the reporting  of test
results could  adversely  affect  the  Labs  Partnership's  business,  financial
condition and results of operations.

     If  the  Labs  Partnership  experiences  more  equipment  malfunctions than
anticipated or if the Labs Partnership is unable to promptly obtain the services
necessary to  keep its  equipment functioning  effectively, its  revenues  could
decline  and its ability to maintain its reputation would be harmed, which could
adversely affect its business, financial condition and results of operations.

THE LABS BUSINESS IS DEPENDENT ON CONTINUED REFERRALS OF PATIENTS.

     The success of a  community-based laboratory in  Ontario is dependent  upon
referrals  of  patients  by health  care  professionals. Referrals  are  made by
physicians who have  no contractual  obligation or economic  incentive to  refer
patients   to  laboratories   operated  by   the  Labs   Partnership.  The  Labs
Partnership's PSCs  compete for  referrals  with its  major competitors  in  the
private  sector and with local service providers in the communities in which the
Labs Partnership operates facilities. The  Labs Partnership is not dependent  on
any  single referral source for a material portion of its revenue. However, if a
sufficiently large  number  of  physicians  elect at  any  time  to  discontinue
referring  patients to the Labs Partnership, the Labs Business and its financial
condition and results of operations would be materially adversely affected.

INSURANCE CARRIED BY THE LABS PARTNERSHIP MAY BE INSUFFICIENT TO COVER ALL
RISKS.

     Due to the nature of the services provided by the Labs Partnership, general
liability claims may be  asserted against the Labs  Partnership with respect  to
the   laboratory  services  provided  to   patients,  including  from  reporting
inaccurate results.  In that  regard, the  Labs Partnership  may be  subject  to
errors and omissions claims related to the services it performs and the risks of
medical  malpractice by laboratory personnel and pathologists. Although the Labs
Partnership will carry insurance in amounts which are standard in Canada for the
operation of laboratories, there can be  no assurance that the Labs  Partnership
will  have obtained coverage of sufficient scope to satisfy any liability claim.
The Labs Partnership believes that it will be able to obtain adequate  insurance
coverage  in the future at acceptable costs,  but there can be no assurance that
it will be able to  do so or that it  will not incur significant liabilities  in
excess  of policy limits. Any  such claims that exceed  the scope of coverage or
applicable policy limits or

                                       105


an inability to obtain adequate coverage could have a material adverse effect on
the Labs Partnership's business, financial condition and results of operations.

THE INTERRUPTION OF THE LABS PARTNERSHIP'S INFORMATION TECHNOLOGY SYSTEMS COULD
HAVE AN ADVERSE IMPACT ON RESULTS.

     The Labs Business will depend, in part, on the continued and  uninterrupted
performance  of the Labs Partnership's information technology systems. Sustained
system failures or interruptions could disrupt the Labs Partnership's ability to
process laboratory  requisitions, perform  testing, provide  test results  in  a
timely  manner  and/or  bill  the  appropriate  party.  The  Labs  Partnership's
business, results  of  operations and  financial  condition could  be  adversely
affected by a system failure.

     The Labs Partnership's computer systems will be vulnerable to damage from a
variety  of sources, including telecommunications failures, malicious human acts
and natural disasters. Moreover, despite network security measures, some of  the
Labs  Partnership's  servers  will  be  potentially  vulnerable  to  physical or
electronic break-ins, computer viruses and similar disruptive problems.  Despite
precautions  taken by the Labs Partnership, unanticipated problems affecting the
Labs  Partnership's  systems  could   cause  interruption  in  its   information
technology systems. The Labs Partnership's insurance policies may not adequately
compensate  it  for  any  losses that  may  occur  due to  any  failures  in its
information technology systems.

CHANGES IN TECHNOLOGY MAY REQUIRE ADDITIONAL INVESTMENT BY THE LABS PARTNERSHIP
WHICH COULD REQUIRE SUBSTANTIAL INVESTMENT.

     The technology  used  in  the  laboratory  services  market  is  constantly
undergoing  development  and  change.  New  technologies  or  new  tests  may be
developed, or existing  technologies or  tests refined, which  could render  the
Labs  Partnership's existing equipment technologically or economically obsolete.
The  development  of   new  technologies  or   new  applications  for   existing
technologies  may require the Labs Partnership  to adapt its existing systems or
acquire new  systems in  order to  successfully compete.  Due to  cost  factors,
competitive  considerations or other constraints, there can be no assurance that
the Labs  Partnership will  be able  to acquire  or have  access to  any new  or
improved  equipment that  the Labs  Partnership may need  in order  to serve its
clients and customers. Any inability of the Labs Partnership to provide adequate
technologies may  adversely affect  the Labs  Partnership's business,  financial
condition and results of operation.

THE LABS PARTNERSHIP IS RELIANT ON KEY PERSONNEL.

     The   Labs  Partnership's  success  will  largely  depend  on  the  skills,
experience and effort of its senior management.  The loss of services of one  or
more  members of  the Labs Partnership's  key senior  management personnel could
significantly weaken the Labs Partnership's management expertise and its ability
to deliver its services efficiently and profitably. In addition, the success  of
the  Labs Partnership's laboratories depends on employing or contracting, as the
case may be, qualified professionals such as technologists. Currently, there  is
a  shortage of  qualified technologists in  Canada. While MDS  believes that the
Labs Partnership will be sufficiently staffed to effectively provide services to
patients, the loss of healthcare professionals or the inability to recruit these
individuals in the Labs  Partnership's markets could  adversely affect the  Labs
Partnership's ability to operate its business efficiently and profitably.

                                       106


                   ANNUAL MEETING AND OTHER SPECIAL BUSINESS

     At  the Meeting,  Shareholders will  be asked  to elect  eight directors of
Hemosol (see  "--  Election of  Directors"  below) and  to  appoint E&Y  as  the
auditors of Hemosol (see "-- Appointment of Auditors" below). If the Arrangement
Resolution  is approved at the Meeting, pursuant to the Arrangement, New Hemosol
will become the effective  successor to the Blood  Products Business as it  will
hold  an  approximate 93%  general partnership  interest  in the  Blood Products
Partnership, to which  Hemosol will  transfer the Blood  Products Business.  See
"New  Hemosol After the Arrangement". If this occurs, the directors and auditors
referred to below will become the directors and auditors of New Hemosol. If  the
Arrangement  Resolution is not approved or  the Arrangement is not completed for
any other  reason, the  directors and  auditors referred  to below  will be  the
directors   and  auditors  of   Hemosol.  Accordingly,  it   is  important  that
Shareholders consider carefully the matters referred to below.

ELECTION OF DIRECTORS

     The Hemosol Board currently consists of  ten directors of which eight  will
be standing for re-election. All of the eight nominees for election as directors
currently act as directors of Hemosol.

<Table>
<Caption>
                                                                                                          HEMOSOL SHARES
                                                                                                           BENEFICIALLY
                                                                                                        OWNED, DIRECTLY OR
                                                                                       PERIOD OF     INDIRECTLY, CONTROLLED OR
                                                                                      SERVICE AS A          DIRECTED AS
NAME AND OFFICE HELD                   PRESENT PRINCIPAL OCCUPATION                     DIRECTOR        AT MARCH 1, 2004(1)
- --------------------                   ----------------------------                   ------------   -------------------------
                                                                                            
Edward K. Rygiel.....................  Executive Chairman, MDS Capital                 Since 1987                 nil(2)
Chairman of the Hemosol Board and      Corp. (a health related venture capital firm)
Director                               and Executive Vice President, MDS Inc. (a
                                       health and life sciences company)
George W. Masters....................  Chairman, Yorkton Biocatalyst Inc.              Since 1989              34,786
Vice-Chairman of the Hemosol Board     (a venture capital and management services
and Director                           company)
Lee D. Hartwell......................  President, Chief Executive Officer and          Since 2003               5,000
President, Chief Executive Officer,    Chief Financial Officer of Hemosol
Chief Financial Officer and Director
Mitchell J. Kostuch..................  President, Kostuch Publications                 Since 1987            52,694(4)
Director                               (a publisher of business magazines)
Wilfred G. Lewitt....................  Chairman, MDS Inc.                              Since 1987                 nil(2)
Director
Robert H. Painter....................  Professor Emeritus of Biochemistry              Since 1990              10,192
Director                               and Immunology, Faculty of Medicine,
                                       University of Toronto
C. Robert Valeri.....................  Director of Naval Blood Research                Since 1992              35,283(3)
Director                               Laboratory, Professor of Medicine and
                                       Research, Professor of Surgery, Boston
                                       University School of Medicine
Edward E. McCormack..................  Business Advisor and Independent                Since 2002                 nil
Director                               Director
</Table>

- ---------------

Notes:

(1)  The  respective nominees have  furnished the information  indicated in this
     column relating to share ownership.

(2)  MDS has a policy which prevents members of management who sit on the boards
     of directors of corporations  in which MDS holds  an interest from  holding
     any  shares in such corporation, unless  such shares were acquired prior to
     their appointment to such board.

(3)  These Hemosol  Shares  are  beneficially  owned  by  Biomedical  Innovative
     Technology, Inc., a corporation controlled by Dr. Valeri.

(4)  These  Hemosol  Shares are  beneficially owned  as follows:  31,852 Hemosol
     Shares are held  by Mr. Kostuch  personally and 20,842  Hemosol Shares  are
     owned by SB Capital Inc., a corporation controlled by Mr. Kostuch.

                                       107


     The current Hemosol Board has the following standing committees:

     -  Audit  Committee,  the current  members  of which  are  Edward McCormack
        (Chairman), George W. Masters, Mitchell J. Kostuch and Nelson M. Sims;

     -  Corporate Governance and  Nominating Committee, the  current members  of
        which are Wilfred G. Lewitt (Chairman) and Edward K. Rygiel;

     -  Human Resources and Compensation Committee, the current members of which
        are Edward K. Rygiel (Chairman), George W. Masters and R. Ian Lennox;

     -  Clinical  and  Regulatory Committee,  the current  members of  which are
        George W. Masters (Chairman), Robert H. Painter and C. Robert Valeri;

     -  Environmental, Health and Safety Committee, the current members of which
        are Mitchell J. Kostuch (Chairman) and Edward McCormack;

     -  Finance Committee, the current  members of which  are Wilfred G.  Lewitt
        (Chairman), Mitchell J. Kostuch and R. Ian Lennox; and

     -  Marketing  Committee, the  current members of  which are  Nelson M. Sims
        (Chairman) and R. Ian Lennox.

APPOINTMENT OF AUDITORS

     Management  proposes  to  nominate  E&Y,  Hemosol's  present  auditors,  as
auditors   of  Hemosol  to  hold  office   until  the  next  annual  meeting  of
Shareholders. The directors negotiate with the  auditors of Hemosol on an  arm's
length  basis in determining the fees to be paid to the auditors. Such fees have
been based upon the complexity of the  matters dealt with and the time  expended
by  the auditors in providing services  to Hemosol. Management believes that the
fees negotiated in the  past with the auditors  of Hemosol have been  reasonable
and  would be  comparable to  fees charged  by other  auditors providing similar
services.

                                       108


EXECUTIVE COMPENSATION

     The following table sets forth all annual and long-term compensation earned
during the fiscal  year ended  December 31,  2003 by  Hemosol's chief  executive
officer  and each of Hemosol's four  most highly compensated executive officers,
other than the chief executive officer,  who were serving as executive  officers
as  of December 31, 2003. Such individuals are hereinafter collectively referred
to as the "Named Executive Officers".

                           SUMMARY COMPENSATION TABLE

<Table>
<Caption>
                                                          ANNUAL
                                                     COMPENSATION(1)        LONG-TERM
                                                     ----------------      COMPENSATION       ALL OTHER
                                                     SALARY    BONUS     SECURITIES UNDER    COMPENSATION
NAME AND PRINCIPAL POSITION                   YEAR     ($)      ($)     OPTIONS GRANTED(2)       ($)
- ---------------------------                   ----   -------   ------   ------------------   ------------
                                                                              
John Kennedy(5).............................  2003   101,480   55,000             nil           260,217(8)
President and Chief                           2002   267,800   55,000          30,000            18,000
Executive Officer                             2001   260,000   65,000          30,000            14,400
Lee D. Hartwell(6)..........................  2003   187,815   20,000       1,383,113           128,400(7)
President, Chief                              2002   164,800   20,000          15,000            15,600
Executive Officer and                         2001   160,000   32,000          15,000            12,000
Chief Financial Officer
Michael Mathews (3)(4)......................  2003   201,060      nil         100,000            86,000(7)
Vice President, U.S                           2002   201,600   20,000          15,000            15,600
Operations                                    2001   200,000   16,700          41,250            12,000
Lee Ann Malcolm(4)(9).......................  2003   150,000      nil             nil            85,300(7)
Vice President,                               2002   150,000   20,000          15,000            15,600
Marketing                                     2001   144,711   29,000          15,000            11,770
Dr. David Bell(6)...........................  2003   175,100   20,000         691,556           115,278(7)
Vice President,                               2002   175,100   20,000          15,000            15,600
Drug Development and                          2001   170,000   34,000          15,000            12,000
Regulatory Affairs
</Table>

- ---------------

Notes:

(1)  The value of perquisites and benefits  for each Named Executive Officer  is
     less than the lesser of $50,000 and 10% of total annual salary and bonus.

(2)  Hemosol has not issued any stock appreciation rights or made any payouts in
     respect of long-term incentive plans.

(3)  Michael  Mathews was  appointed Vice  President, U.S.  Operations effective
     August 7,  2001. On  December  11, 2003,  the Hemosol  Board  conditionally
     granted  100,000 Hemosol Options  to Mr. Mathews. This  grant is subject to
     Shareholder and regulatory approval -- see "-- Ratification of  Conditional
     Grants of Options".

(4)  Michael  Mathews and Lee Ann Malcolm are paid in U.S. dollars. Accordingly,
     all amounts shown for Mr. Matthews and Ms. Malcolm are in U.S. dollars.

(5)  In May 2003,  John Kennedy,  Hemosol's then President  and Chief  Executive
     Officer,  took a  medical leave of  absence for an  indeterminate period of
     time. Mr.  Kennedy  subsequently  passed  away on  June  4,  2003  and  Lee
     Hartwell,  Hemosol's Chief  Financial Officer, was  appointed President and
     Chief Executive  Officer  while  also maintaining  his  position  as  Chief
     Financial Officer.

(6)  On  October  29, 2003,  the Hemosol  Board conditionally  granted 1,383,113
     Hemosol Options to Mr.  Hartwell and 691,556 Hemosol  Options to Dr.  Bell.
     These  grants are subject to Shareholder and regulatory approval -- see "--
     Ratification of Conditional Grants of Options".

(7)  As part of the efforts  undertaken by Hemosol in  April 2003 to scale  back
     operations,  reduce cash burn and provide the greatest flexibility, working
     notice was provided to substantially all employees and a retention  program
     was  implemented for a core group of senior personnel. Under this retention
     program, Mr. Hartwell received a payment of $112,800, Mr. Matthews received
     a payment of US$70,400,  Ms. Malcolm received a  payment of US$69,700,  and
     Dr.  Bell received a payment of $99,678.  Each of these named officers also
     received an automobile allowance in the amount of $15,600.

(8)  Mr. Kennedy received an automobile allowance in the amount of $8,031 and  a
     death benefit in the amount of $252,186 was paid to Mr. Kennedy's widow.

(9)  On  April  7,  2003,  Hemosol  gave  Lee  Ann  Malcolm  working  notice  of
     termination of her employment. The notice period for Ms. Malcolm expired on
     December 31, 2003.

                                       109


     The following  table  indicates  the Hemosol  Options  granted  during  the
financial year ended December 31, 2003 to the Named Executive Officers.

<Table>
<Caption>
                                       OPTION GRANTS DURING THE FINANCIAL YEAR ENDED DECEMBER 31, 2003
                       ------------------------------------------------------------------------------------------------
                                        PERCENTAGE OF TOTAL                        MARKET VALUE OF
                       HEMOSOL SHARES   OPTIONS GRANTED TO                        HEMOSOL SHARES ON
                       UNDER OPTIONS       EMPLOYEES IN        EXERCISE PRICE      DATE PRECEDING
NAME                      GRANTED         FINANCIAL YEAR      ($/HEMOSOL SHARE)     ISSUANCE ($)       DATE OF EXPIRY
- ----                   --------------   -------------------   -----------------   -----------------   -----------------
                                                                                       
John Kennedy.........      nil              nil                  nil                 nil                     nil
Lee D. Hartwell......     1,383,113(1)         39.1                 0.90                0.80          October 29, 2013
Michael Matthews.....       100,000(1)          2.8                 1.60                1.60          December 11, 2013
Lee Ann Malcolm......      nil              nil                  nil                 nil                     nil
Dr. David Bell.......       691,556(1)         19.5                 0.90                0.80          October 29, 2013
</Table>

- ---------------

Note:

(1)  These  Hemosol Options were granted as part of a total of 3,541,225 Hemosol
     Options granted by  the Hemosol Board  during the year  ended December  31,
     2003.  These grants remain subject  to Shareholder and regulatory approval.
     See  "Annual  Meeting  and  Other  Special  Business  --  Ratification   of
     Conditional Grants of Options".

     The  following  table indicates  the Hemosol  Options exercised  during the
financial year ended December 31, 2003  by each of the Named Executive  Officers
and the value of Hemosol Options unexercised at year end.

            AGGREGATE HEMOSOL OPTIONS EXERCISED DURING THE FINANCIAL
       YEAR ENDED DECEMBER 31, 2003 AND FINANCIAL YEAR END OPTION VALUES

<Table>
<Caption>
                                                                                               VALUE OF
                                                                                             UNEXERCISED
                                                                       UNEXERCISED       IN-THE-MONEY OPTIONS
                                                                       OPTIONS AT            AT FINANCIAL
                                HEMOSOL SHARES                     FINANCIAL YEAR END:      YEAR END(1)($)
                                 ACQUIRED ON     AGGREGATE VALUE      EXERCISABLE/           EXERCISABLE/
NAME                               EXERCISE       REALIZED ($)        UNEXERCISABLE        UNEXERCISABLE(2)
- ----                            --------------   ---------------   -------------------   --------------------
                                                                             
John Kennedy..................    nil               nil                237,74,878              nil
Lee D. Hartwell...............    nil               nil            93,977/1,414,136(3)      0/926,686
Michael Matthews..............    nil               nil             34,138/122,113(4)          nil
Lee Ann Malcolm...............    nil               nil               59,217/33,685            nil
Dr. David Bell................    nil               nil             81,361/709,001(5)       0/463,342
</Table>

- ---------------

Notes:

(1)  Based upon the $1.57 closing price of Hemosol Shares on the TSX on December
     31, 2003 (the "Closing Price").

(2)  The  values cited were calculated by multiplying the difference between the
     Closing Price and  the exercise price  of the in-the-money  options by  the
     total  number of in-the-money  options held. All  in-the-money options were
     unexercisable at financial year end.

(3)  On October 29, 2003, the Hemosol Board granted 1,383,113 Hemosol Options to
     Mr. Hartwell, subject  to Shareholder  and regulatory approval  -- see  "--
     Ratification  of Conditional  Grants of  Options". Under  the terms  of the
     Arrangement, Mr. Hartwell will be issued  a total of 1,383,113 New  Hemosol
     Options to replace the 1,508,113 Hemosol Options currently held by him.

(4)  On  December 11, 2003, the Hemosol Board granted 100,000 Hemosol Options to
     Mr. Mathews,  subject to  Shareholder and  regulatory approval  -- see  "--
     Ratification  of Conditional  Grants of  Options". Under  the terms  of the
     Arrangement, Mr. Mathews  will be  issued a  total of  100,000 New  Hemosol
     Options to replace the 156,250 Hemosol Options currently held by him.

(5)  On  October 29, 2003, the Hemosol  Board granted 691,556 Hemosol Options to
     Dr. Bell,  subject  to  Shareholder  and regulatory  approval  --  see  "--
     Ratification  of Conditional  Grants of  Options". Under  the terms  of the
     Arrangement, Dr. Bell will be issued a total of 691,556 New Hemosol Options
     to replace the 790,463 Hemosol Options currently held by him.

HUMAN RESOURCES AND COMPENSATION COMMITTEE REPORT

COMPOSITION OF THE HUMAN RESOURCES AND COMPENSATION COMMITTEE

     The Human Resources  and Compensation Committee  (the "Human Resources  and
Compensation Committee") of the Hemosol Board during the most recently completed
financial  year was comprised of three  non-employee directors. Its members were
Edward K. Rygiel (Chairman), George W. Masters and R. Ian Lennox.

                                       110


REPORT ON EXECUTIVE COMPENSATION

     The Human Resources and  Compensation Committee's responsibilities  include
the   determination  of  overall  company   salary  objectives  in  addition  to
determining the compensation of its  executive officers. In establishing  salary
objectives   for  executive  officers,  the  Human  Resources  and  Compensation
Committee seeks to accomplish the following goals:

     (a)  to motivate  executives to  achieve important  corporate and  personal
          performance objectives and reward them when such objectives are met;

     (b)  to recruit and subsequently retain highly qualified executive officers
          by  offering  overall  compensation  which  is  competitive  with that
          offered for comparable positions in other biotechnology companies; and

     (c)  to align  the  interests  of executive  officers  with  the  long-term
          interests  of shareholders through participation  in the Hemosol Stock
          Option Plan.

     Currently,  Hemosol's  executive  compensation  package  consists  of   the
following  components:  base  salary,  annual  incentive  bonuses  and long-term
incentives in the form of Hemosol Options.

     Base salaries  for  executive officers  are  determined by  evaluating  the
responsibilities  inherent in the position  held and the individual's experience
and past performance, as well as by reference to the competitive marketplace for
management  talent  at  other  publicly  held,  development-stage  biotechnology
companies.  The Human Resources  and Compensation Committee  refers to industry,
local  and  national  surveys,  prepared  for  the  most  part  by   independent
consultants.

     The  Hemosol Board  approves annual  corporate objectives  and these, along
with  personal  performance  goals,  are   used  by  the  Human  Resources   and
Compensation  Committee for the purpose of determining annual incentive bonuses,
giving due consideration to Hemosol's stage  of development. At the end of  each
year,  actual performance  against these objectives  and goals  is measured. The
assessment of whether Hemosol's corporate objectives for the year have been  met
includes,  but is not limited to,  considering the quality and measured progress
of Hemosol's research and development projects, corporate alliances and  similar
relationships.  The maximum  annual bonus for  any executive  officer other than
Hemosol's chief executive  officer has  been set at  35% of  base salary.  Bonus
payments  at  this level  would reflect  extraordinary personal  achievement and
Hemosol's attainment of all corporate objectives for the year under review.

     A portion of executive compensation is aligned with growth in share  value.
Hemosol  Options  are  awarded  to executive  officers  at  the  commencement of
employment and annually  on meeting individual  objectives. Hemosol Options  are
granted   to  reward  individuals  for   current  performance,  expected  future
performance and value to Hemosol.

     The  principles  described  above  apply   to  the  determination  of   the
compensation  of  all executive  officers,  including Hemosol's  chief executive
officer.  The  Human  Resources  and  Compensation  Committee  acts  alone  when
considering  the compensation of Hemosol's chief executive officer; however, the
chief executive officer assists the  Human Resources and Compensation  Committee
in assessing the performance of all other executive officers.

     The   Human  Resources   and  Compensation  Committee   reports  and  makes
recommendations to the Hemosol Board with respect to compensation.

     Presented by the Human Resources and Compensation Committee:

Edward K. Rygiel
George W. Masters
R. Ian Lennox

                                       111


PERFORMANCE GRAPH

     The following  graph  compares  Hemosol's total  shareholder  return  since
December  31,  1998  to  December  31,  2003  against  the  return  on  the  TSX
Biotechnology and Pharmaceuticals Index for the same period(1).

                              (PERFORMANCE GRAPH)

<Table>
<Caption>
- -----------------------------------------------------------------------------------------------------
                        31-DEC-98    31-DEC-99    29-DEC-00(2)    31-DEC-01    31-DEC-02    31-DEC-03
- -----------------------------------------------------------------------------------------------------
                                                                          
 HEMOSOL INC.              100          261           180             56           28           75
 TSX BIOTECH INDEX         100          127           105            115           57           98
</Table>

Notes:

(1)  Hemosol has  paid no  dividends to  date  on the  Hemosol Shares.  The  TSX
     Biotech  and  Pharmaceuticals Index  is the  total index  return, including
     dividends reinvested.

(2)  The last trading day of 2000 was December 29.

DIRECTORS' COMPENSATION

     Directors  generally  are   compensated  for  their   services  through   a
combination  of retainer fees and meeting  attendance fees. Directors receive an
annual retainer fee of $10,000  and an attendance fee  of $750 for each  meeting
attended.   In  addition,  committee  members  are  paid  $2,000  per  annum  as
compensation for  services  rendered  to  the committees  on  which  they  serve
(collectively,  the "Directors' Compensation"). Any  member of the Hemosol Board
who is also an executive officer of  Hemosol does not receive compensation as  a
director  of  Hemosol.  During  the year  ended  December  31,  2003, Directors'
Compensation with  an  aggregate  value  of $242,591  was  paid.  Directors  are
reimbursed  for expenses  incurred to attend  meetings of the  Hemosol Board and
committees. As members of Hemosol's scientific advisory board, Messrs. Robert H.
Painter and C.  Robert Valeri  each received $1,000  per month  from Hemosol  in
connection  with  their  work  as  members  of  the  scientific  advisory board.
Historically, each director was awarded  5,000 Hemosol Options upon joining  the
Hemosol  Board and  all directors  were awarded  an additional  5,000 options in
2000. Each of Messrs. Nelson M. Sims and Edward E. McCormack was awarded  10,000
Hemosol Options upon joining the Hemosol Board. Mr. Nelson M. Sims joined in May
2001  and Mr. Edward  E. McCormack joined  in December 2002.  For the year ended
December 31, 2003, 6,000 Hemosol Options were awarded to each of Messrs.  George
W.  Masters, Mitchell  J. Kostuch,  Edward McCormack,  Robert H.  Painter and C.
Robert Valeri  as partial  compensation  for their  efforts as  independent  and
unrelated directors. These Hemosol Options were part of a larger pool of 775,000
Hemosol  Options granted subject to  Shareholder and regulatory approval. Future
Hemosol Options  grants to  the directors  will be  reviewed in  the context  of
overall corporate performance.

     Commencing   with  the  second  quarter   of  2003,  the  directors  agreed
unanimously to defer the payment of all Directors' Compensation until  Hemosol's
financial  condition  had stabilized.  Accordingly, all  Directors' Compensation
related to activities beginning on April 1, 2003 was accrued by Hemosol and paid
in full in February 2004.

INTEREST OF INSIDERS IN MATERIAL TRANSACTIONS

     MDS is an insider of Hemosol by virtue of its ownership of more than 10% of
the Hemosol Shares, as  described above under "General  Proxy Matters --  Voting
Securities and Principal Holders Thereof".

                                       112


CORPORATE GOVERNANCE

     In  February 1995, the TSX approved a  report of its committee on corporate
governance, including a recommendation that companies incorporated in Canada and
listed on the TSX be obligated to respond to the fourteen guidelines set out  in
the  report. The Hemosol  Board has reviewed these  guidelines and believes that
its corporate  governance practices  continue to  be generally  consistent  with
those set out in the report of the TSX's committee on corporate governance.

     Details    of   Hemosol's   corporate    governance   practices   and   the
responsibilities of the Hemosol Board as well as the practices to be adopted  by
the  board  of  directors  of  New  Hemosol,  with  reference  to  the  report's
guidelines, are  addressed below.  In this  section, reference  to the  "Hemosol
Board"  shall include  reference to  the board of  directors of  New Hemosol and
reference to "Hemosol"  shall include reference  to New Hemosol  as well as  the
Blood Products Partnership.

<Table>
<Caption>
                  GUIDELINE                                        HEMOSOL'S PRACTICE
                  ---------                                        ------------------
                                                  
1.      The  Hemosol  Board  should explicitly
assume responsibility for  stewardship of  the
corporation, and specifically:
     (i)   adopt a strategic planning process,       A  strategic planning process is in effect and
                                                     at least one  board meeting each  year is  set
                                                     aside    to    review    strategic   planning.
                                                     Additionally, strategic  issues  are  reviewed
                                                     from time to time by the Hemosol Board.
     (ii)    identify principal  risks  of the       The principal risks to Hemosol's business  are
           business  and implement  systems of       identified in the 2002 Annual Information Form
           risk management,                          filed by Hemosol under the heading  "Narrative
                                                     Description  of the Business -- Risk Factors".
                                                     Senior  management  actively  addresses  these
                                                     risks,  and the Hemosol  Board, at its regular
                                                     meetings, receives  and reviews  reports  from
                                                     management on its assessment and management of
                                                     these risks.
     (iii)  provide  for  succession planning,       The CEO has, pursuant  to the Hemosol  Board's
           including  appointing, training and       instruction, developed a  succession plan  for
           monitoring senior management,             senior  management which has  been approved by
                                                     the Hemosol  Board. Succession  planning  with
                                                     respect  to senior management  is a continuing
                                                     responsibility   of    the   CEO,    involving
                                                     participation   by  the  Human  Resources  and
                                                     Compensation Committee of  the Hemosol  Board.
                                                     Senior   management  is  responsible  for  the
                                                     evaluation   and   succession   planning    of
                                                     positions reporting to them.
     (iv) communications policy,                     The  public disclosure of  Hemosol is designed
                                                     such  that  required,  effective  and   timely
                                                     communication   about  its  business  is  made
                                                     available  to  shareholders,  members  of  the
                                                     public  and  media. Hemosol  routinely obtains
                                                     expert external advice to assist in  effective
                                                     and proper disclosure.
     (v)   the integrity of Hemosol's internal       Senior management has the primary
           control and management  information       responsibility for Hemosol's internal controls
           systems.                                  and  management  information  systems. Through
                                                     the Audit  Committee  of  the  Hemosol  Board,
                                                     which  meets with Hemosol's external auditors,
                                                     the Hemosol  Board  assesses the  strength  of
                                                     these controls.
</Table>

                                       113


<Table>
<Caption>
                  GUIDELINE                                        HEMOSOL'S PRACTICE
                  ---------                                        ------------------
                                                  
2.    The Hemosol  Board should be constituted       For the purpose  of the  report, an  unrelated
with  a majority of individuals who qualify as       director  is   one  who   is  independent   of
unrelated directors.                                 management  and free from any interest and any
                                                     business or other relationship which could, or
                                                     could reasonably be  perceived to,  materially
                                                     interfere  with the director's  ability to act
                                                     in the  best  interests  of  the  corporation,
                                                     other  than interests or relationships arising
                                                     from shareholding.
                                                     The board  of directors  of New  Hemosol  will
                                                     initially    consist   of   eight   directors.
                                                     Excluding  the   CEO,  the   remaining   seven
                                                     directors will be unrelated within the meaning
                                                     of  the report, and  accordingly, the board of
                                                     directors of New  Hemosol will be  constituted
                                                     with a majority of unrelated directors.
3.     In  the case  of  a corporation  with a       The report defines  a significant  shareholder
significant  shareholder, disclose whether the       as "a shareholder with the ability to exercise
Hemosol  Board   is   constituted   with   the       a  majority of  the votes for  the election of
appropriate number of directors which are  not       the board of directors". Hemosol does not have
related  to  either  the  corporation  or  the       a significant shareholder. For the year  ended
significant shareholder.                             December  31, 2003, four  of the ten directors
                                                     were employed by MDS which holds approximately
                                                     11.7% of the  outstanding Hemosol Shares.  Two
                                                     of  New Hemosol's  directors will  be employed
                                                     by, or representatives of, MDS.
4.   Appoint a committee of directors composed       Hemosol's Corporate Governance and  Nominating
exclusively  of  outside,  i.e. non-management       Committee  (see   description   of   Corporate
directors,  a majority  of whom  are unrelated       Governance  and  Nominating  Committee   under
directors, responsible for the appointment and       guideline  number  nine)  is  responsible  for
assessment of directors.                             nominating individuals  for  consideration  by
                                                     the Hemosol Board as directors. This committee
                                                     does  not have  formal responsibility  for the
                                                     assessment of  individual directors  following
                                                     their appointment to the Hemosol Board.
5.     Implement a  process for  assessing the       See description  of Corporate  Governance  and
effectiveness   of  the   Hemosol  Board,  its       Nominating Committee  under  guideline  number
committees and individual directors.                 nine.
6.      Provide an  orientation  and education       Hemosol does not have a formal orientation and
program for new directors.                           education program for new directors.  However,
                                                     all of the current directors have been members
                                                     of the Hemosol Board for several years and are
                                                     well versed in the business of Hemosol.
7.    Examine  the size of  the Hemosol Board,       The Hemosol  Board presently  consists of  ten
with specific reference to its effectiveness.        members  with varying  business and scientific
                                                     backgrounds, suitable to Hemosol's  interests,
                                                     of  which  only  eight  will  be  standing for
                                                     re-election at the Meeting. Upon completion of
                                                     the Plan  of  Arrangement, the  newly  elected
                                                     directors of Hemosol will become the directors
                                                     of New Hemosol.
8.   Review compensation of directors in light       The Human Resources and Compensation Committee
of risks and responsibilities.                       has  a mandate to review  and recommend to the
                                                     Hemosol   Board    directors'    remuneration.
                                                     Remuneration   was  first  paid  to  Hemosol's
                                                     directors in 1994,  based on several  factors,
                                                     including time
</Table>

                                       114


<Table>
<Caption>
                  GUIDELINE                                        HEMOSOL'S PRACTICE
                  ---------                                        ------------------
                                                  
                                                     commitments  and  emoluments  to  directors of
                                                     similar organizations.
9.   Committees  should generally be  composed       Hemosol  has  seven  standing  committees,  as
of only outside directors, a majority of  whom       follows:
are unrelated directors.
                                                     The  Audit Committee is  composed of unrelated
                                                     directors.  Its  mandate  is  to  review   the
                                                     financial statements, including the format and
                                                     content of the statements before submission to
                                                     the  Hemosol Board, to  review the adequacy of
                                                     Hemosol's internal control procedures, and  to
                                                     approve  the external audit program and assess
                                                     the results  thereof with  management and  the
                                                     auditors.   In  fulfilling   its  mandate,  in
                                                     addition to  meeting jointly  with  management
                                                     and   the   auditors,   the   committee  meets
                                                     independently with the auditors.
                                                     The Human Resources and Compensation Committee
                                                     is composed of unrelated directors. It reviews
                                                     Hemosol's  overall  compensation  program  and
                                                     corporate   succession  plans  at  the  senior
                                                     management level.  It has  responsibility  for
                                                     reviewing  and  recommending  to  the  Hemosol
                                                     Board,  for  its  approval,  the  compensation
                                                     programs   for  both   senior  management  and
                                                     directors. Its mandate also includes reviewing
                                                     management compensation policies and  benefits
                                                     and reviewing the overall quality of Hemosol's
                                                     human resources program.
                                                     The   Corporate   Governance   and  Nominating
                                                     Committee is composed of unrelated  directors.
                                                     Its   mandate   is   to   recommend  effective
                                                     governance systems for  Hemosol and to  advise
                                                     the   Hemosol  Board  on  the  application  of
                                                     existing corporate  governance principles,  to
                                                     assess  the effectiveness of the Hemosol Board
                                                     and to assess,  review and recommend  nominees
                                                     for  directorships. It is also responsible for
                                                     administering the Hemosol Board's relationship
                                                     with management  and  acting as  a  forum  for
                                                     governance  issues and related concerns of any
                                                     director.
                                                     The Finance Committee is composed of unrelated
                                                     directors.  Its  mandate  is  to  review   all
                                                     proposed financing arrangements and to provide
                                                     recommendations  to the  Hemosol Board  on all
                                                     material   financial   matters   relating   to
                                                     Hemosol.
                                                     The   Marketing  Committee   is  comprised  of
                                                     unrelated directors. Its mandate is to  ensure
                                                     that Hemosol's marketing effort is
                                                     appropriately   directed  and   resourced  for
                                                     success in a competitive market. The marketing
                                                     committee assumes responsibility for reviewing
                                                     and  approving:  the  annual  marketing  plan;
                                                     ongoing  plan  adjustments (if  required); the
                                                     marketing management succession plan; and  the
                                                     marketing   resource  allocation  (people  and
                                                     budget).
</Table>

                                       115


<Table>
<Caption>
                  GUIDELINE                                        HEMOSOL'S PRACTICE
                  ---------                                        ------------------
                                                  
                                                     The  Research  and  Regulatory  Committee   is
                                                     composed   of   unrelated  directors.   It  is
                                                     responsible for oversight, at the board level,
                                                     of Hemosol's  research  programs.  It  assists
                                                     Hemosol  in  monitoring  appropriate processes
                                                     for the review  and approval  of the  clinical
                                                     development program.
                                                     It   also  reports  any   concerns  or  issues
                                                     relating  to  either  Hemosol's  research   or
                                                     clinical  development programs  to the Hemosol
                                                     Board.
                                                     The Environmental Health and Safety  Committee
                                                     is   composed  of   unrelated  directors.  Its
                                                     mandate   is    to   monitor    the    written
                                                     environmental policy of Hemosol and to oversee
                                                     the  environmental  protection  program  which
                                                     addresses  issues  such  as  compliance   with
                                                     environmental   laws  and   regular  reporting
                                                     procedures.  Its  mandate   also  includes   a
                                                     reporting  procedure whereby any environmental
                                                     concerns, including spills and discharges, are
                                                     brought to the attention of the Hemosol Board.
                                                     In addition  to  its  formal  committees,  the
                                                     Hemosol Board also strikes committees on an ad
                                                     hoc basis to address specific requirements and
                                                     Hemosol   also   assigns   responsibility   to
                                                     individual Hemosol  Board  members to  act  as
                                                     liaison,  between the Hemosol Board as a whole
                                                     and management, in  specific areas,  including
                                                     ethics.
10.   Assume  or   assign  responsibility  for       See description  of the  Corporate  Governance
corporate governance issues.                         and   Nominating  Committee   under  guideline
                                                     number nine.
11. Define  management's responsibilities  and       The    Hemosol   Board    has   the   ultimate
approve corporate objectives to be met by  the       responsibility  for supervising the management
CEO.                                                 of Hemosol. Management brings to the attention
                                                     of  the  Hemosol  Board  for  discussion   and
                                                     direction  all matters  which are  outside the
                                                     day-to-day operations  of  Hemosol,  or  which
                                                     would  represent  a  material  deviation  from
                                                     Hemosol's  business   plan  or   budget.   The
                                                     business  plan and budget are both approved by
                                                     the Hemosol  Board. Additionally,  the  annual
                                                     objectives   of  the  CEO   are  reviewed  and
                                                     approved by the Hemosol Board.
12. Establish  structures  and  procedures  to       For  several years, the  office of Chairman of
enable   the   Hemosol   Board   to   function       the Hemosol Board has been separated from that
independently  of  management.  An appropriate       of the CEO and has been filled by a person who
structure would be to  appoint a chairman  who       is not a member of management.
is not a member of management.
13.  The audit committee should be composed of       See description of  the Audit Committee  under
outside  directors  and its  role specifically       guideline number nine.
defined.
14. Implement  a system  to enable  individual       In  concert  with  their  overall  duties  and
directors  to  engage  outside  advisors,   at       obligations as directors, individual directors
Hemosol's expense.                                   may  engage  outside  advisers,  at  Hemosol's
                                                     expense, subject  to  approval  by  the  Human
                                                     Resources and Compensation Committee.
</Table>

                                       116


DIRECTORS' AND OFFICERS' INSURANCE

     Hemosol  maintains liability insurance  for its directors  and officers. An
aggregate annual premium of approximately $630,720 was paid by Hemosol for  such
insurance  in 2003  and no  part of  the premium  was paid  by the  directors or
officers of  Hemosol.  The aggregate  insurance  coverage under  the  policy  is
limited  to $10  million per  year. Hemosol is  liable to  reimburse the insurer
$250,000 for each claim made under the policy.

RATIFICATION OF CONDITIONAL GRANTS OF OPTIONS

     At the Meeting, Shareholders will also be asked to consider and, if  deemed
advisable,  approve a resolution described below relating to an amendment to the
Hemosol Stock Option Plan in order to ratify the conditional grant of  2,766,225
Hemosol  Options on October 29, 2003 and 775,000 Hemosol Options on December 11,
2003 under the Hemosol Stock Option Plan.

     During 2003, Hemosol considered various compensation arrangements to ensure
the retention  of key  personnel in  light of  its financial  resources and  the
challenges  that it  faced and the  Hemosol Board  conditionally granted options
with exercise prices  of $0.09  and $1.60 per  Hemosol Share  under the  Hemosol
Stock Option Plan as part of such retention arrangements as most of the existing
Hemosol  Options at such time had exercise prices that were significantly higher
and were out-of-the-money. As  part of the  Arrangement, subject to  Shareholder
ratification  and the consent  of the relevant  holder, such conditional options
will replace, in effect, such existing options.

     On October 29, 2003, the Hemosol Board conditionally approved the grant  of
an  aggregate of 2,766,225 Hemosol Options to Lee Hartwell, Hemosol's President,
Chief Executive Officer and Chief Financial Officer, Dirk Alkema, Hemosol's Vice
President, Operations and David Bell, Hemosol's Vice President, Discovery, which
options (a) may be exercised to purchase Hemosol Shares at an exercise price  of
$0.90  per share, (b) will fully vest on October 29, 2004 and (c) will otherwise
be subject to  the terms and  conditions of  the Hemosol Stock  Option Plan.  In
addition,  on December  11, 2003, the  Hemosol Board  conditionally approved the
grant of an aggregate of up to 775,000 Hemosol Options, of which an aggregate of
144,000 Hemosol Options were  granted to Hemosol's  directors and the  remaining
approximately  631,000 Hemosol Options  were granted to  Hemosol's employees and
service providers.  All of  the  775,000 Hemosol  Options  may be  exercised  to
purchase  Hemosol Shares  at an exercise  price of  $1.60 per share  and will be
subject to the terms  and conditions of  the Hemosol Stock  Option Plan. All  of
these  Hemosol Options  were conditionally approved  subject to  approval of the
Hemosol Stock Option Plan Amendment by the Shareholders and regulatory approval.

     The conditional Hemosol Options described above form part of the  Specified
Hemosol  Options and will be dealt with under the Arrangement as described under
"The Arrangement  --  Treatment  of  Hemosol  Options  in  Connection  with  the
Arrangement".   In  connection  with  the   Arrangement,  the  holders  of  such
conditional Hemosol Options will be asked  to consent to the replacement of  all
of  their Hemosol Options  (including the conditional  Hemosol Options) with New
Hemosol Options to replace only the conditional Hemosol Options. If they do  not
so  consent, such holders will receive New Hemosol Options to replace only their
Hemosol Options that are not part  of the conditional Hemosol Options.  Assuming
the relevant consents are obtained, it is expected that a total of approximately
4,000,000  New  Hemosol  Options will  be  issued to  replace  the approximately
5,000,000 outstanding  Hemosol Options  granted pursuant  to the  Hemosol  Stock
Option Plan (including the conditional Hemosol Options).

     The  grant of the  conditional Hemosol Options  described above require the
ratification of  the Shareholders  as  such grants  resulted  in the  number  of
Hemosol  Shares reserved for issuance under  the Hemosol Stock Option Plan being
in excess of the maximum number allowable thereunder at the relevant times.

     At the Meeting, the Shareholders will  be asked to consider and, if  deemed
advisable,  to approve  the following  resolution to  approve the  Hemosol Stock
Option Plan Amendment  in order  to ratify  the conditional  grant of  2,766,225
Hemosol  Options on October 29, 2003 and 775,000 Hemosol Options on December 11,
2003:

     "BE IT RESOLVED as  an ordinary resolution of  the Shareholders of  Hemosol
     that,  subject  to  regulatory  approval,  the  Hemosol  Stock  Option Plan
     Amendment, as  more particularly  described in  the Management  Information
     Circular dated March 10, 2004, be and the same is hereby approved."

     In  order for the foregoing resolution to be passed, it must be approved by
a simple majority  of the votes  cast by  Shareholders voting, in  person or  by
proxy, at the Meeting. The persons named in the enclosed form of proxy, if named
as  proxy, intend  to vote  for the  approval of  the Hemosol  Stock Option Plan
Amendment.

                                       117


APPROVAL OF NEW HEMOSOL STOCK OPTION PLAN

     At the  Meeting, Shareholders  will be  asked to  consider and,  if  deemed
advisable,  approve the adoption by New Hemosol  of the New Hemosol Stock Option
Plan which  will authorize  the New  Hemosol  Board to  issue stock  options  to
directors, officers, employees or other service providers of New Hemosol and its
subsidiaries  or affiliated entities, including  the Blood Products Partnership.
The New Hemosol  Stock Option  Plan is described  under "New  Hemosol After  the
Arrangement  -- New  Hemosol Stock  Option Plan"  in this  Circular, and  a copy
thereof is set out in Annex F to this Circular.

     At the Meeting, the Shareholders will  be asked to consider and, if  deemed
advisable,  to approve the  following resolution to approve  the adoption of the
New Hemosol Stock Option Plan:

     "BE IT RESOLVED, as of the Effective Date, as an ordinary resolution of the
     Shareholders of New Hemosol  that subject to  regulatory approval, the  New
     Hemosol Stock Option Plan, as more particularly described in the Management
     Information  Circular  dated March  10,  2004, be  and  the same  is hereby
     approved."

     In order for the foregoing resolution to be passed, it must be approved  by
a  simple majority  of the votes  cast by  Shareholders voting, in  person or by
proxy, at the Meeting. The persons named in the enclosed form of proxy, if named
as proxy, intend to  vote for the  approval of the adoption  of the New  Hemosol
Stock Option Plan.

APPROVAL OF AMENDED AND RESTATED LABCO BY-LAWS

     At  the  Meeting, Shareholders  will be  asked to  consider and,  if deemed
advisable, approve  the adoption  by Labco  of the  Amended and  Restated  Labco
By-Laws as set out in Annex M to this Circular.

     At  the Meeting, the Shareholders will be  asked to consider and, if deemed
advisable, to  approve  the following  resolution  to approve  the  Amended  and
Restated Labco By-Laws:

     "BE IT RESOLVED, as of the Effective Date, as an ordinary resolution of the
     Shareholders  of Hemosol  that the Amended  and Restated  Labco By-Laws, as
     more particularly described  in the Management  Information Circular  dated
     March 10, 2004, be and the same is hereby approved."

     In  order for the foregoing resolution to be passed, it must be approved by
a simple majority  of the votes  cast by  Shareholders voting, in  person or  by
proxy, at the Meeting. The persons named in the enclosed form of proxy, if named
as  proxy, intend  to vote for  the approval  of the Amended  and Restated Labco
By-Laws.

                                       118


                             GENERAL PROXY MATTERS

PURPOSE OF THE MEETING

     The purpose of the Meeting is that Securityholders consider and, if  deemed
advisable,  pass,  with  or  without variation,  the  Arrangement  Resolution to
approve the Arrangement under section 182 of the OBCA, and that Shareholders (i)
receive and consider the annual financial  statements of Hemosol and the  report
of  the directors  and auditors  thereon, (ii)  elect the  directors of Hemosol,
(iii) appoint the auditors of Hemosol  and authorize the directors to fix  their
remuneration,  (iv) consider  and, if  deemed advisable,  pass, with  or without
variation, a resolution approving the  Hemosol Stock Option Plan Amendment,  (v)
if  the Arrangement  Resolution is  passed, consider  and, if  deemed advisable,
pass, with or without  variation, a resolution approving  the New Hemosol  Stock
Option  Plan and (vi) if the Arrangement  Resolution is passed, consider and, if
deemed advisable, pass, with  or without variation,  a resolution approving  the
Amended and Restated Labco By-Laws.

DATE, TIME AND PLACE OF MEETING

     The Meeting will be held on Tuesday, the 20th day of April, 2004 commencing
at 10:00 a.m. (Toronto time) at the TSX Broadcast Centre, Gallery Room, 130 King
Street West, Toronto, Ontario.

SOLICITATION OF PROXIES

     THIS  CIRCULAR IS FURNISHED IN CONNECTION  WITH THE SOLICITATION OF PROXIES
BY THE MANAGEMENT OF HEMOSOL FOR USE  AT THE MEETING FOR THE PURPOSES SET  FORTH
IN  THE ACCOMPANYING NOTICE OF MEETING. Securityholders are requested to execute
and return  the appropriate  form of  proxy in  the envelope  provided for  that
purpose.  Shareholders  are asked  to  complete and  deliver  the form  of proxy
printed on  blue  paper.  Eligible  Convertible  Securityholders  are  asked  to
complete  and deliver the form of proxy  printed on green paper. Persons holding
both Hemosol  Shares  and  Eligible  Convertible  Securities  are  requested  to
complete and deliver both the blue and green forms of proxy.

     To  be effective, proxies must be  validly executed (if a Securityholder is
not an individual, it must have the proxy executed by a duly authorized  officer
or  properly  appointed  attorney)  and  received  either  by  mail  or delivery
addressed to Computershare Trust  Company of Canada,  at 100 University  Avenue,
9th  Floor,  Toronto, Ontario  M5J 2Y1  or to  the Secretary  of Hemosol  at the
offices of Hemosol at 2585 Meadowpine Blvd., Mississauga, Ontario L5N 8H9 or  by
facsimile  to Computershare toll-free at 1-866-249-7775  (or in the Toronto area
at (416) 263-9524), in each  case before 5:00 p.m.  (Toronto time) on April  16,
2004  or,  if  the  Meeting  is  adjourned  or  postponed,  48  hours (excluding
Saturdays, Sundays  and  holidays) before  the  time the  adjourned  Meeting  is
reconvened  or the postponed Meeting is  convened. Proxies may also be deposited
with the  scrutineers of  the Meeting,  to the  attention of  the chair  of  the
Meeting,  at or  immediately prior  to the  commencement of  the Meeting  or any
postponement(s) or adjournment(s) thereof. An undated but executed proxy will be
deemed to be dated as of the date of this Circular.

     It is expected that the solicitation of proxies will be primarily by  mail,
but proxies may also be solicited personally by regular employees of Hemosol for
which no additional compensation will be paid. The cost of preparing, assembling
and  mailing this  Circular, the Notice  of Meeting,  the form of  proxy and any
other material relating to  the Meeting has  been or will  be borne by  Hemosol,
subject  to reimbursement by MDS  of certain fees and  expenses, as discussed in
detail in  "The  Arrangement  --  Expenses of  the  Arrangement".  Hemosol  will
reimburse  brokers  and other  entities for  costs incurred  by them  in mailing
soliciting materials to the beneficial owners of Hemosol Securities.

APPOINTMENT OF PROXYHOLDER

     The persons named in the accompanying form of proxy are representatives  of
management of Hemosol and are directors or officers of Hemosol. A Securityholder
has  the  right  to appoint  a  person (who  need  not be  a  Securityholder) to
represent the Securityholder at the Meeting other than the persons designated in
the accompanying form  of proxy. Such  right may be  exercised by inserting  the
name of such person in the blank space provided in the form of proxy.

                                       119


NON-REGISTERED HOLDERS

     Only  registered  Securityholders  or  the persons  they  appoint  as their
proxyholders are permitted  to vote at  the Meeting. A  person who  beneficially
owns  Hemosol Securities through an intermediary  such as a bank, trust company,
securities dealer, broker, trustee or administrator (an "Intermediary") is not a
registered Securityholder (a "Non-Registered Holder").

     In accordance  with applicable  securities  laws, Hemosol  is  distributing
copies  of the  Meeting Materials  to clearing  agencies and  Intermediaries for
onward distribution to  Non-Registered Holders. Intermediaries  are required  to
forward  Meeting  Materials to  Non-Registered  Holders unless  a Non-Registered
Holder has waived the right  to receive them. Generally, Non-Registered  Holders
who have not waived the right to receive Meeting Materials will either:

     (a)  be  sent by the Intermediary a pre-signed form of proxy for the number
          of Hemosol Securities beneficially owned by the Non-Registered Holder,
          which must be completed by the Non-Registered Holder; or

     (b)  receive a request for voting instruction form which must be  completed
          and signed by the Non-Registered Holder.

     The  purpose of  these procedures  is to  permit Non-Registered  Holders to
direct the  voting  of  the  Hemosol Securities  they  beneficially  own.  Every
Intermediary  has its  own mailing procedures  and provides its  own signing and
return  instructions.  Non-Registered  Holders   should  carefully  follow   the
instructions of their Intermediaries to ensure that their Hemosol Securities are
voted at the Meeting.

     Should  a Non-Registered  Holder who  receives either  a proxy  or a voting
instruction form from its Intermediary wish to attend and vote at the Meeting in
person (or have another person attend  and vote on behalf of the  Non-Registered
Holder),  the Non-Registered Holder  should strike out the  names of the persons
named in  the  proxy and  insert  the  Non-Registered Holder's  (or  such  other
person's)  name  in  the  blank space  provided  or,  in the  case  of  a voting
instruction form, follow the instructions on the form.

REVOCATION OF PROXY

     In addition  to  revocation  in  any  other  manner  permitted  by  law,  a
Securityholder  who has  given a  proxy may  revoke the  proxy by  depositing an
instrument in writing  executed by  the Securityholder  or the  Securityholder's
attorney  authorized in writing (i) at the  executive offices of Hemosol at 2585
Meadowpine Blvd., Mississauga, Ontario  L5N 8H9, addressed  to the attention  of
the  Secretary, at any time up to  and including the last business day preceding
the date of the  Meeting, or any postponement(s)  or adjournment(s) thereof,  or
(ii)  with the scrutineers of the Meeting, to  the attention of the chair of the
Meeting, at  or immediately  prior to  the commencement  of the  Meeting or  any
postponement(s) or adjournment(s) thereof.

     A Non-Registered Holder must comply with the applicable requirements of its
Intermediary in order to revoke voting instructions. Generally, a Non-Registered
Holder  may revoke a voting instruction form or a form of waiver of the right to
receive the Meeting Materials and to vote  given to an Intermediary at any  time
by  written  notice to  the  Intermediary, except  that  an Intermediary  is not
required to act on a revocation of a voting instruction form or a form of waiver
of the right to receive  Meeting Materials and to vote  that is not received  by
the Intermediary prior to a certain period specified by such Intermediary.

EXERCISE OF VOTE BY PROXY

     Hemosol  Securities represented by properly  executed proxies will be voted
in accordance with the instructions of the Securityholder on any ballot that may
be called for (provided that Securityholders who are not also Shareholders  will
only be eligible to vote and appoint a proxyholder in respect of the Arrangement
Resolution)  and, if the  Securityholder specifies a choice  with respect to any
matter to  be acted  upon  at the  Meeting,  Hemosol Securities  represented  by
properly  executed proxies will be voted  accordingly. IF NO CHOICE IS SPECIFIED
WITH RESPECT TO SUCH MATTER, THE PERSONS DESIGNATED IN THE ACCOMPANYING FORM  OF
PROXY WILL VOTE FOR: (I) THE ELECTION OF THE MANAGEMENT NOMINEES AS DIRECTORS OF
HEMOSOL;   (II)  THE  APPOINTMENT  OF  E&Y   AS  AUDITORS  OF  HEMOSOL  AND  THE
AUTHORIZATION OF THE  HEMOSOL BOARD  TO FIX  THE REMUNERATION  OF THE  AUDITORS;
(III) THE APPROVAL OF THE HEMOSOL STOCK OPTION PLAN AMENDMENT; (IV) THE APPROVAL
OF  THE ARRANGEMENT RESOLUTION; (V) THE APPROVAL OF THE NEW HEMOSOL STOCK OPTION
PLAN; AND  (VI) THE  APPROVAL OF  THE AMENDED  AND RESTATED  LABCO BY-LAWS.  The
enclosed  form of proxy  confers discretionary authority  upon the persons named
therein with respect to amendments or

                                       120


variations to matters identified  in the Notice of  Meeting and with respect  to
other  matters that may  properly come before  the Meeting. At  the date of this
Circular, the management of Hemosol knows  of no such amendments, variations  or
other  matters to come before the Meeting, other than the matters referred to in
the Notice of Meeting.

QUORUM, RECORD DATE AND ENTITLEMENT TO VOTE

     The presence, in person or by  proxy, of Shareholders holding at least  20%
of  the total number of  the issued Hemosol Shares is  necessary for a quorum at
the Meeting. The Hemosol Board has fixed the close of business on March 17, 2004
as the record date for the  purpose of determining the Securityholders  entitled
to  receive  notice  of,  and  to  vote at,  the  Meeting.  The  failure  of any
Securityholder  to  receive  notice  of   the  Meeting  does  not  deprive   the
Securityholder  of a  vote at  the Meeting.  A person  who has  acquired Hemosol
Securities after the  record date is  entitled to vote  those Securities at  the
Meeting  upon  producing  properly  endorsed  share  certificates,  or otherwise
establishing ownership to the securities,  and requesting the inclusion of  his,
her or its name in the list of securityholders not less than ten days before the
date of the Meeting.

     At  the  Meeting, Shareholders  will be  entitled to  one vote  per Hemosol
Share, Eligible Convertible  Securityholders (other  than Broker  Optionholders)
will  be  entitled to  one  vote per  Eligible  Convertible Security  and Broker
Optionholders will be entitled to one and one-half votes per Broker Option.

VOTING SECURITIES AND PRINCIPAL HOLDERS THEREOF

     As at  March 10,  2004 the  following Hemosol  Securities were  issued  and
outstanding:

     (a)  56,145,583 Hemosol Shares and no Hemosol Special Shares;

     (b)  4,225,891 Eligible Convertible Securities (other than Broker Options);
          and

     (c)  392,090 Broker Options.

     At  the Meeting, Hemosol  Shareholders will be entitled  to an aggregate of
56,145,583 votes and Eligible Convertible Securityholders will be entitled to an
aggregate of 4,617,981 votes.

     To the knowledge of the directors and officers of Hemosol, the only  person
or  company that beneficially owns, directly or indirectly, or exercises control
or direction over more than 10% of the Hemosol Shares is the following:

<Table>
<Caption>
                                                           NUMBER OF BENEFICIALLY   PERCENTAGE OF OUTSTANDING
NAME                                                        OWNED HEMOSOL SHARES         HEMOSOL SHARES
- ----                                                       ----------------------   -------------------------
                                                                              
MDS(1)...................................................        6,549,897                    11.7
</Table>

- ---------------

Note:

(1)  According to information provided by  MDS, of the 6,549,897 Hemosol  Shares
     referred  to above, MDS owns 6,087,982  Hemosol Shares directly and 461,915
     Hemosol  Shares  indirectly  through  MDS  Health  Ventures  (TC)  Inc.,  a
     wholly-owned  subsidiary of  MDS. In  addition, 812,246  Hemosol Shares are
     held by two  entities, for which  MDS Capital Corp.  and/or its  affiliates
     provide management services (MDS owns an approximate 47% equity interest in
     MDS  Capital Corp. and  the balance of  the equity interest  in MDS Capital
     Corp. is  owned by  institutional investors  and management).  The  Hemosol
     Shares  held by such entities are voted by such entities through authorized
     signing officers. MDS and MDS  Capital Corp. disclaim beneficial  ownership
     of the 812,246 Hemosol Shares held by these funds.

PROCEDURE AND VOTES REQUIRED

ELECTION OF DIRECTORS

     On any ballot that may be called relating to the election of directors, the
persons  named  as proxies  in the  enclosed form  of proxy  intend to  vote the
Hemosol Shares represented by proxies in  favour of management nominees for  the
election  of  such persons  as directors  of Hemosol,  unless a  Shareholder has
specified in his proxy that the Hemosol  Shares held by such Shareholder are  to
be  withheld from voting  for the election  of directors. In  the event that any
vacancies occur in the slate of such  nominees, the persons named as proxies  in
the enclosed form of proxy intend to vote the Hemosol Shares represented by such
proxies  for the election of such other  persons as directors in accordance with
the best judgment of management. Each  Shareholder will be entitled to one  vote
for each Hemosol Share held. The resolution respecting the election of directors
must  be  approved  at  the Meeting  by  more  than  50% of  the  votes  cast by
Shareholders voting, in person or by proxy, at the Meeting. See "Annual  Meeting
and Other Special Business -- Election of Directors".

                                       121


APPOINTMENT OF AUDITORS

     On  any ballot that may be called  relating to the appointment of auditors,
the persons named as proxies  in the enclosed form of  proxy intend to vote  the
Hemosol  Shares represented by proxies in favour  of the appointment of the firm
of E&Y, as the auditors of Hemosol  and authorizing the directors of Hemosol  to
fix  the remuneration of  the auditors, unless a  Shareholder signing such proxy
has specified otherwise. Each Shareholder will be entitled to one vote for  each
Hemosol  Share held. The  resolution respecting the  appointment of auditors and
authorizing the directors  of Hemosol to  fix the remuneration  of the  auditors
must  be  approved  at  the Meeting  by  more  than  50% of  the  votes  cast by
Shareholders voting, in person or by proxy, at the Meeting. See "Annual  Meeting
and Other Special Business -- Appointment of Auditors".

RATIFICATION OF CONDITIONAL GRANTS OF OPTIONS

     On  any ballot that may  be called relating to  the approval of the Hemosol
Stock Option Plan Amendment, the persons  named as proxies in the enclosed  form
of  proxy intend to vote the Hemosol  Shares represented by proxies in favour of
the approval of the  Hemosol Stock Option Plan  Amendment, unless a  Shareholder
signing such proxy has specified otherwise. Each Shareholder will be entitled to
one  vote for each Hemosol Share held. The resolution respecting the approval of
the Hemosol Stock Option Plan Amendment must be approved at the Meeting by  more
than 50% of the votes cast by Shareholders voting, in person or by proxy, at the
Meeting.  See  "Annual Meeting  and Other  Special  Business --  Ratification of
Conditional Grants of Options".

ARRANGEMENT RESOLUTION

     At the  Meeting, Shareholders  will be  entitled to  one vote  per  Hemosol
Share, Securityholders (other than Broker Optionholders) will be entitled to one
vote  per Hemosol Security and Broker Optionholders  will be entitled to one and
one-half votes per Broker Option. The majority required to pass the  Arrangement
Resolution,  will be, subject to further order of the Court, at least two-thirds
of all the votes cast by Securityholders  voting together as a single class,  in
person  or by  proxy, at the  Meeting and  a majority of  all the  votes cast by
Minority Shareholders voting,  in person  or by proxy,  at the  Meeting. On  any
ballot  that  may  be  called  relating  to  the  approval  of  the  Arrangement
Resolution, the persons named as proxies in the enclosed form of proxy intend to
vote the Hemosol Securities represented by proxies in favour of the approval  of
the  Arrangement  Resolution, unless  a  Securityholder signing  such  proxy has
specified otherwise.

APPROVAL OF NEW HEMOSOL STOCK OPTION PLAN

     Under the terms  of the Interim  Order, votes cast  by Shareholders at  the
Meeting will be deemed to be votes by holders of New Hemosol Shares at a meeting
of  the holders of New Hemosol  Shares as it relates to  the approval of the New
Hemosol Stock Option  Plan. On any  ballot that  may be called  relating to  the
approval  of the New Hemosol Stock Option  Plan, the persons named as proxies in
the enclosed form  of proxy  intend to vote  the Hemosol  Shares represented  by
proxies in favour of the approval of the New Hemosol Stock Option Plan, unless a
Shareholder   signing  such  proxy  has   specified  otherwise.  The  resolution
respecting the approval of the New Hemosol Stock Option Plan must be approved at
the Meeting by more than 50% of the votes cast by Shareholders voting, in person
or by proxy, at the Meeting. See  "Annual Meeting and Other Special Business  --
Approval of New Hemosol Stock Option Plan".

APPROVAL OF AMENDED AND RESTATED LABCO BY-LAWS

     On  any ballot that may  be called relating to  the approval of the Amended
and Restated Labco By-Laws, the persons named as proxies in the enclosed form of
proxy intend to vote the Hemosol Shares represented by proxies in favour of  the
approval of the Amended and Restated Labco By-Laws, unless a Shareholder signing
such  proxy has specified  otherwise. The resolution  respecting the approval of
the Amended and Restated Labco By-Laws must  be approved at the Meeting by  more
than 50% of the votes cast by Shareholders voting, in person or by proxy, at the
Meeting.  See "Annual Meeting and Other  Special Business -- Approval of Amended
and Restated Labco By-Laws".

                                       122


                             ADDITIONAL INFORMATION

     Any comparative  interim  consolidated  financial  statements,  comparative
annual  consolidated  financial statements,  material change  reports (excluding
confidential reports) or information circulars  which are subsequently filed  by
Hemosol  with any  Canadian Securities  Administrator or  similar authorities in
Canada after the date of this Circular and prior to the date of the Meeting will
be deemed to be incorporated by  reference into this Circular. Any report  filed
by  Hemosol with the  SEC after the date  of this Circular will  be deemed to be
incorporated by reference into  this Circular if and  to the extent provided  in
such  document.  Electronic copies  of such  documents will  be available  to be
viewed or downloaded from  Hemosol's website (www.hemosol.com). Additionally,  a
Securityholder  may request that a paper copy of such documents be mailed to it,
without charge, by contacting Investor Relations by e-mail at ir@hemosol.com, by
telephone toll-free at 1-800-789-3419, or by facsimile at (416) 815-0080, at any
time prior to the date of the Meeting.

     Additional copies of this Circular may be obtained by contacting Hemosol at
the particulars noted above  or by contacting  Hemosol's registrar and  transfer
agent,  Computershare, by mail or delivery at 100 University Avenue, 11th Floor,
Toronto, Ontario M5J 2Y1, or by facsimile toll-free at 1-888-453-0330 (or in the
Toronto area at (416) 981-9800), at any time prior to the date of the Meeting.

                              APPROVAL OF HEMOSOL

     The  contents   of  this   Circular  and   the  sending   thereof  to   the
Securityholders have been approved by the Hemosol Board.

Toronto, Ontario, March 10, 2004

By Order of the Hemosol Board

(Signed) LEE D. HARTWELL
President, Chief Executive Officer & Chief Financial Officer

                                       123


                               AUDITORS' CONSENT

     We  have  read  Hemosol Inc.'s  ("Hemosol")  Notice of  Annual  and Special
Meeting of Securityholders and Management Information Circular (the  "Circular")
dated  March 10, 2004 with  respect to a Plan  of Arrangement involving Hemosol,
its securityholders  and  MDS Inc.  We  have complied  with  Canadian  generally
accepted standards for an auditor's involvement with offering documents.

     We  consent to the incorporation by reference in the Circular of our report
to the shareholders of Hemosol on the consolidated balance sheets of Hemosol  as
at  December 31, 2003 and 2002 and  the consolidated statements of loss, deficit
and cash flows for each of the years in the three-year period ended December 31,
2003. Our report is dated March 10, 2004.

     We also consent to the use in  the Circular of our report to the  directors
of  Hemosol Corp. on the balance sheet of Hemosol Corp. as at February 24, 2004.
Our report is dated March 10, 2004.

<Table>
                                              
Toronto, Canada                                  (signed) ERNST & YOUNG LLP
March 10, 2004                                   Chartered Accountants
</Table>

                                       124


                        SCHEDULE 1 -- GLOSSARY OF TERMS

     Unless the  context otherwise  requires, when  used in  this Circular,  the
following terms and phrases shall have the following meanings:

"ADJUSTMENT AMOUNTS" means all amounts paid by the Blood Products Partnership to
Labco pursuant to the terms of the Labco Indemnity Agreement;

"AMENDED  AND RESTATED LABCO BY-LAWS" means  the amended and restated by-laws of
Labco to be voted upon  by the Shareholders at the  Meeting, a copy of which  is
set out in Annex M to this Circular;

"AMF" means l'Autorite des marches financiers (Quebec);

"ARRANGEMENT"  means the arrangement under section 182  of the OBCA on the terms
and conditions set forth in the Plan of Arrangement, as may be amended from time
to time prior to the Effective Time;

"ARRANGEMENT AGREEMENT" means the arrangement agreement dated as of February 11,
2004 between Hemosol and  MDS, a copy  of which is  set out in  Annex D to  this
Circular, as may be amended from time to time prior to the Effective Time;

"ARRANGEMENT  RESOLUTION" means  the special  resolution of  the Securityholders
approving the Plan of Arrangement, the full text of which is set out in Annex  A
to  this Circular,  to be  considered and,  if deemed  advisable, passed  by the
Securityholders at the Meeting;

"ARTICLES OF  ARRANGEMENT" means  the articles  of arrangement  relating to  the
Arrangement  required under  subsection 183(1)  of the  OBCA to  be sent  to the
Director after the Final Order has been granted;

"AUDITED FINANCIAL STATEMENTS" means the audited consolidated balance sheets  of
Hemosol as at December 31, 2003 and 2002 and the audited consolidated statements
of  loss, deficit and cash flows for each  of the years in the three-year period
ended December 31, 2003, including the notes thereto;

"BANK" means The Bank of Nova Scotia or other lender under the Bank Loan;

"BANK LOAN" means the $20  million loan facility made  available by the Bank  to
Hemosol pursuant to a commitment letter dated October 25, 2002, as amended;

"BLOOD  PRODUCTS  ASSETS"  means  all  the assets  owned  or  leased  by Hemosol
immediately prior to the Effective Time;

"BLOOD PRODUCTS  BUSINESS"  means the  business  and operations  carried  on  by
Hemosol and its Subsidiaries immediately prior to the Effective Time;

"BLOOD   PRODUCTS  CONTRIBUTION  AGREEMENT"  means  the  contribution  agreement
contemplated by the Plan of  Arrangement to be entered  into by Hemosol and  the
Blood  Products Partnership pursuant to which  Hemosol will contribute the Blood
Products Assets  to  the  Blood  Products Partnership  and  the  Blood  Products
Partnership will assume the Blood Products Liabilities from Hemosol;

"BLOOD PRODUCTS LIABILITIES" means all liabilities (contingent or otherwise) and
other  obligations of Hemosol immediately prior to the Effective Time, including
without limitation, obligations under the Bank Loan;

"BLOOD PRODUCTS  LP  UNIT"  means  a partnership  unit  of  the  Blood  Products
Partnership;

"BLOOD   PRODUCTS  PARTNERSHIP"  means  Hemosol   LP,  the  limited  partnership
contemplated by the Arrangement that will acquire the Blood Products Assets from
Hemosol, assume the  Blood Products Liabilities  from Hemosol and  carry on  the
Blood Products Business on and after the Effective Date and in which New Hemosol
will  hold a  general partnership interest  of approximately 93%  and Labco will
hold a limited partnership interest of  approximately 7% upon completion of  the
Arrangement;

"BLOOD  PRODUCTS PARTNERSHIP AGREEMENT" means  the limited partnership agreement
contemplated by  the  Plan  of Arrangement  that  will  set out  the  terms  and
conditions  of the Blood Products Partnership and which will be substantially in
the form attached as Exhibit 5 to the Arrangement Agreement;

"BLOOD PRODUCTS SECURITY AGREEMENTS" means the security agreements to be entered
into by the Blood Products Partnership and the Bank pursuant to which the  Blood
Products  Partnership will grant a security interest in all of its assets to the
Bank and provide certain assignments in favour of the Bank to secure obligations
under the Bank Loan, which security agreements shall be substantially similar to
the current security agreements between Hemosol and the Bank;

                                       125


"BPP GUARANTEE" means a guarantee on terms and conditions substantially  similar
to  the MDS Guarantee  pursuant to which  MDS will guarantee  the Blood Products
Partnership's obligations under the Bank Loan after the Effective Time;

"BROKER OPTIONS"  means the  broker compensation  options issued  by Hemosol  on
January  22, 2004  to Loewen, Ondaatje,  McCutcheon Limited  and Vengate Capital
Partners Company to  purchase an  aggregate 392,090 Hemosol  Shares and  196,045
Hemosol Warrants;

"BROKER OPTIONHOLDERS" means the holders of Broker Options;

"CANADIAN  SECURITIES ADMINISTRATORS" means the securities regulators in each of
the provinces of Canada;

"CBCA" means the  Canada Business  Corporations Act, as  amended, including  the
regulations promulgated thereunder;

"CCRA" means Canada Customs and Revenue Agency (formerly Revenue Canada) and any
successor thereof;

"CERTIFICATE  OF  ARRANGEMENT"  means  the certificate  to  be  endorsed  by the
Director pursuant  to  subsection  183(2)  of the  OBCA  giving  effect  to  the
Arrangement;

"CIRCULAR"  means this  management information  circular, including  all Annexes
hereto, distributed by Hemosol in connection with the Meeting;

"COMPUTERSHARE" means Computershare Trust Company  of Canada, the registrar  and
transfer  agent for the  Hemosol Shares, with offices  at 100 University Avenue,
9(th) Floor, Toronto, Ontario M5J 2Y1;

"COURT" means the Superior Court of Justice of Ontario;

"DIRECTOR" means the director appointed under section 278 of the OBCA;

"DWPV" means Davies Ward Phillips &  Vineberg LLP, legal advisor to Hemosol  and
the Independent Committee;

"EBITDA" means earnings before interest, taxes, depreciation and amortization;

"E&Y" means Ernst & Young LLP;

"EFFECTIVE  DATE" means the date on  which the Arrangement becomes effective, as
established by the date shown on the Certificate of Arrangement;

"EFFECTIVE TIME" means 12:01 a.m. (Toronto time) on the Effective Date;

"ELIGIBLE CONVERTIBLE  SECURITIES"  means the  Hemosol  Convertible  Securities,
other than the Tranche A Warrants;

"ELIGIBLE CONVERTIBLE SECURITYHOLDERS" means the holders of Eligible Convertible
Securities;

"ESCROW  AGREEMENT" means  the escrow agreement  between New  Hemosol, Labco and
CIBC Mellon Trust Company or such  other escrow agent acceptable to New  Hemosol
and  Labco,  acting  reasonably, contemplated  by  the Plan  of  Arrangement and
containing the terms  and conditions  set out in  Exhibit 4  to the  Arrangement
Agreement;

"ESCROW  AMOUNT" means $1  million to be  held in escrow  in accordance with the
terms of the Escrow Agreement;

"FINAL ORDER" means  the order  of the Court  approving the  Arrangement, to  be
applied  for by Hemosol  following the Meeting if  the Arrangement Resolution is
approved and to be granted  pursuant to subsection 182(5)  of the OBCA, as  such
order  may be amended or modified by the  highest court which hears an appeal in
respect of such order;

"GAAP" means generally accepted accounting principles;

"HEMOLINK"  means  HEMOLINK(TM)  (hemoglobin  raffimer),  the  principal  oxygen
therapeutic product of Hemosol;

"HEMOLINK  BUILDING" means the manufacturing facility of Hemosol located at 2585
Meadowpine Blvd., Mississauga, Ontario L5N 8H9;

"HEMOSOL" means  Hemosol Inc.,  a corporation  existing under  the OBCA  (as  it
exists prior to the Effective Time);

"HEMOSOL BOARD" means the board of directors of Hemosol which currently consists
of 10 members;

                                       126


"HEMOSOL  CONVERTIBLE  SECURITIES"  means  all securities  of  Hemosol  that are
convertible or  exercisable into  or  otherwise give  the  holder the  right  to
acquire  Hemosol  Shares  or other  securities  of Hemosol,  other  than Hemosol
Options, which are outstanding immediately prior to the Effective Time;

"HEMOSOL OPTIONS" means options  to purchase Hemosol  Shares issued pursuant  to
the Hemosol Stock Option Plan;

"HEMOSOL  SECURITIES" means, collectively,  the Hemosol Shares  and the Eligible
Convertible Securities;

"HEMOSOL SHARES" means the common shares in the capital of Hemosol prior to  the
Effective Time;

"HEMOSOL  SPECIAL SHARES"  means the  special shares  in the  capital of Hemosol
prior to the Effective Time;

"HEMOSOL STOCK OPTION PLAN" means the Amended and Restated Stock Option Plan  of
Hemosol dated December 7, 2000;

"HEMOSOL  STOCK  OPTION  PLAN AMENDMENT"  means  the proposed  amendment  to the
Hemosol Stock  Option Plan  to increase  the maximum  number of  Hemosol  Shares
reserved for issuance thereunder from 3,031,712 to 5,499,298;

"HEMOSOL  WARRANTS" means  the warrants issued  pursuant to  a warrant indenture
dated  November  28,  2003  between  Hemosol  and  Computershare,  each  warrant
exercisable into one Hemosol Share;

"INDEPENDENT  COMMITTEE" means  the independent  committee of  the Hemosol Board
composed of three independent directors (as that term is defined in Rule  61-501
and  Policy Q-27)  of Hemosol,  formed to  evaluate the  Arrangement and  make a
recommendation to  the Hemosol  Board whether  the Arrangement  is in  the  best
interests of Hemosol and is fair to Non-MDS Securityholders;

"INTERIM  ORDER" means the interim order of  the Court dated March 9, 2004 under
subsection 182(5)  of  the  OBCA containing  declarations  and  directions  with
respect  to  the  Arrangement  and  the  Meeting  and  granted  pursuant  to the
application of Hemosol therefor, a copy of which is attached as Annex C to  this
Circular;

"INTERMEDIARY"  has the  meaning given to  that term under  the heading "General
Proxy Matters -- Non-Registered Holders" in this Circular;

"KPMG" means KPMG Corporate Finance  Inc., financial advisor to the  Independent
Committee in connection with the Arrangement;

"KPMG  FAIRNESS OPINION"  means the written  opinion of KPMG  to the Independent
Committee dated February  11, 2004 relating  to the fairness,  from a  financial
point of view, of the Arrangement to Non-MDS Securityholders, a copy of which is
attached as Annex E to this Circular;

"LABCO"  means LPBP Inc., as  Hemosol will be renamed  after the Effective Time,
which will hold a  99.99% limited partnership interest  in the Labs  Partnership
and  an  approximate  7%  limited partnership  interest  in  the  Blood Products
Partnership, and in  which upon  completion of  the Arrangement  MDS will  hold,
directly or indirectly, not more than 47.5% of the Labco Class A Shares and 100%
of  the Labco Class B Non-Voting Shares, collectively representing 99.56% of the
equity, and Public Shareholders will hold not less than 52.5% of the Labco Class
A Shares representing 0.44% of the equity;

"LABCO BOARD" means the board of directors of Labco from time to time;

"LABCO CLASS A SHARES" means the Class A voting common shares in the capital  of
Labco to be created and issued at the Effective Time pursuant to the Articles of
Arrangement  and  the  Plan  of  Arrangement,  having  the  rights,  privileges,
restrictions and conditions as set out in Appendix A to the Plan of Arrangement;

"LABCO CLASS B  NON-VOTING SHARES" means  the Class B  non-voting shares in  the
capital  of Labco to be created and issued at the Effective Time pursuant to the
Articles of  Arrangement  and  the  Plan  of  Arrangement,  having  the  rights,
privileges,  restrictions and conditions as set out in Appendix A to the Plan of
Arrangement;

"LABCO CLASS C  SHARES" means the  Class C  preferred shares in  the capital  of
Labco to be created and issued at the Effective Time pursuant to the Articles of
Arrangement  and  the  Plan  of  Arrangement,  having  the  rights,  privileges,
restrictions and conditions set out in Appendix A to the Plan of Arrangement;

"LABCO INDEMNITY AGREEMENT" means the indemnity agreement to be entered into  by
Labco  and the Blood Products Partnership, substantially in the form attached as
Exhibit 12 to the Arrangement Agreement;

"LABCO  SHARE  CONDITIONS"  means  the  rights,  privileges,  restrictions   and
conditions  of the  Labco Class  A Shares, Labco  Class B  Non-Voting Shares and
Labco Class C Shares as set out in Appendix A to the Plan of Arrangement;

                                       127


"LABCO SHARES" means, collectively, the Labco Class A Shares, the Labco Class  B
Non-Voting Shares and the Labco Class C Shares;

"LABS  ASSETS" means the assets listed on Exhibit 6 to the Arrangement Agreement
used to  operate  the  Labs Business  which  will  be contributed  to  the  Labs
Partnership by MDS pursuant to the terms of the Labs Contribution Agreement;

"LABS  BUSINESS" means the  clinical laboratory services  business carried on by
MDS in  Ontario immediately  prior  to the  Effective  Time which,  for  greater
certainty,  does  not include  diagnostic  imaging, water  testing,  real estate
investments, the Executive  Health Clinic, MDS's  joint venture with  University
Health  Network called Toronto Medical Laboratories and MDS's financial interest
in Windsor Medical Laboratories;

"LABS CONTRIBUTION AGREEMENT" means  the contribution agreement contemplated  by
the  Plan of  Arrangement to  be entered  into by  MDS and  the Labs Partnership
pursuant to which MDS will contribute the Labs Assets to the Labs Partnership;

"LABS FINANCIAL INFORMATION" means  the unaudited summary financial  information
of  the Labs Business compiled from accounting  records of MDS as at October 31,
2003 and for the fiscal years of MDS ended October 31, 2001, 2002 and 2003;

"LABS MANAGEMENT AGREEMENT" means the management agreement to be entered into by
MDS and the Labs Partnership  on the Effective Date  pursuant to which MDS  will
provide  the  management and  administrative  services to  the  Labs Partnership
specified therein  and which  will  be substantially  in  the form  attached  as
Exhibit 8 to the Arrangement Agreement;

"LABS  PARTNERSHIP" means MDS Laboratory Services, L.P., the limited partnership
contemplated by the Plan of Arrangement  that will acquire the Labs Assets  from
MDS and carry on the Labs Business on and after the Effective Time, and in which
MDS  Subco will hold a 0.01% general  partnership interest and Labco will hold a
99.99% limited partnership interest upon the completion of the Arrangement;

"LABS  PARTNERSHIP   AGREEMENT"   means  the   limited   partnership   agreement
contemplated  by  the  Plan of  Arrangement  that  will set  out  the  terms and
conditions of the Labs Partnership and  which will be substantially in the  form
attached as Exhibit 7 to the Arrangement Agreement;

"LABS PARTNERSHIP INTEREST" means the 99.99% limited partnership interest in the
Labs Partnership to be held by Labco upon completion of the Arrangement;

"LETTER  OF UNDERSTANDING" means the non-binding letter of understanding between
MDS and Hemosol,  accepted and  agreed to  by Hemosol  on October  31, 2003,  as
amended;

"MDS" means MDS Inc., a corporation existing under the CBCA;

"MDS  ADDITIONAL CLASS A SHARES" means that number of Labco Class A Shares equal
to the difference  between (a)  47.5% of  the Labco  Class A  Shares issued  and
outstanding  upon completion of the Arrangement,  or such lesser number of Labco
Class A Shares determined by MDS in  its sole discretion, and (b) the number  of
Labco  Class A Shares held by MDS immediately  prior to the transfer of the Labs
Partnership Interest;

"MDS CLASS B NON-VOTING  SHARES" means that number  of Labco Class B  Non-Voting
Shares  that will result in  MDS holding (in combination  with the Labco Class A
Shares held  by MDS  upon completion  of the  Arrangement) 99.56%  of the  total
number  of  issued  and outstanding  Labco  Class  A Shares  and  Labco  Class B
Non-Voting Shares upon completion of the Arrangement;

"MDS GUARANTEE" means the guarantee dated November 22, 2002 by MDS of  Hemosol's
obligations under the Bank Loan, as it may be amended from time to time;

"MDS  INDEMNITY AGREEMENT" means  the indemnity agreement to  be entered into by
MDS, New Hemosol and Hemosol, substantially  in the form attached as Exhibit  13
to the Arrangement Agreement;

"MDS  MOU" means the  memorandum of understanding between  MDS and Hemosol dated
October 22, 2002, as amended on December 23, 2003;

"MDS SUBCO" means MDS Laboratory Services Inc., a wholly-owned subsidiary of MDS
which will be  the general  partner of  and hold a  0.01% interest  in the  Labs
Partnership upon completion of the Arrangement;

                                       128


"MEETING" means the annual and special meeting of the Securityholders to be held
on  April 20, 2004  to consider and  vote on the  Arrangement Resolution and the
other matters  set out  in the  Notice  of Meeting,  and any  adjournment(s)  or
postponement(s) thereof;

"MEETING  MATERIALS" means, collectively,  this Circular, the  Notice of Meeting
and the form of proxy;

"MINORITY SHAREHOLDERS" means all Shareholders excluding any Shareholders  whose
votes  are to be excluded  at the Meeting for  the purposes of minority approval
(as that term  is defined in  Rule 61-501  and Policy Q-27)  of the  Arrangement
Resolution at the Meeting;

"MOH" means the Ontario Ministry of Health and Long-Term Care;

"NASDAQ" means The Nasdaq National Market;

"NEW  HEMOSOL" means Hemosol Corp., a  corporation existing under the OBCA which
will, in effect, be the successor to  the Blood Products Business and will  hold
an   approximate  93%  general  partnership   interest  in  the  Blood  Products
Partnership upon completion of the Plan of Arrangement;

"NEW HEMOSOL BOARD" means the board of directors of New Hemosol;

"NEW HEMOSOL CONVERTIBLE SECURITIES"  means securities of  New Hemosol that  are
convertible  or  exercisable into  or  otherwise give  the  holder the  right to
acquire New Hemosol Shares or other securities of New Hemosol, but excludes  the
New Hemosol Options;

"NEW  HEMOSOL MOU"  means the  memorandum of  understanding between  MDS and New
Hemosol to be dated the Effective Date  relating to the issuance of warrants  to
purchase  up to 2,000,000 New Hemosol Shares on  the same terms as the Tranche B
Warrants except that the number of warrants vesting each month shall be  reduced
by 50% and the exercise price shall be reduced by $0.04 per warrant;

"NEW  HEMOSOL  OPTIONS"  means options  to  purchase New  Hemosol  Shares issued
pursuant to the New Hemosol Stock Option Plan;

"NEW HEMOSOL SHARE  CONDITIONS" means the  rights, privileges, restrictions  and
conditions  of the New Hemosol Shares and the New Hemosol Special Shares, as set
out in Exhibit 9 to the Arrangement Agreement;

"NEW HEMOSOL SHARES" means the common shares in the capital of New Hemosol;

"NEW HEMOSOL SPECIAL  SHARES" means  the special shares  in the  capital of  New
Hemosol;

"NEW HEMOSOL STOCK OPTION PLAN" means the stock option plan of New Hemosol to be
voted  upon by the  Shareholders at the Meeting,  a copy of which  is set out in
Annex F to this Circular;

"NON-MDS SECURITYHOLDERS"  means  Securityholders  who  are  not  affiliates  of
Hemosol. The term Non-MDS Securityholders excludes MDS and its affiliates;

"NOTICE OF MEETING" means the notice of Meeting which accompanies this Circular;

"OBCA"  means the Business Corporations Act (Ontario), as amended, including the
regulations promulgated thereunder;

"OSC" means the Ontario Securities Commission;

"OUTSIDE DATE" means May 31, 2004;

"PARTNERSHIP  INTEREST  TRANSFER   AGREEMENT"  means   the  transfer   agreement
contemplated  by the Plan of Arrangement pursuant to which MDS will transfer the
Labs Partnership  Interest  to  Labco and  surrender  for  cancellation  500,000
Tranche  A Warrants  and the  right to acquire  2,000,000 Tranche  B Warrants in
consideration for the issuance to MDS of  the MDS Additional Class A Shares  and
the  MDS Class B  Non-Voting Shares and Labco  will grant to MDS  (i) a right of
first refusal in  respect of the  Labs Partnership Interest  exercisable in  the
event  that  Labco receives  a bona  fide written  offer from  a third  party to
purchase the Labs Partnership Interest and  (ii) an option to purchase the  Labs
Partnership Interest for fair market value if any steps are taken to wind up the
Labs  Partnership or the Labs Partnership  proposes to sell all or substantially
all of its assets, otherwise than in the ordinary course of business;

"PARTNERSHIP INTERESTS" means, collectively,  the limited partnership  interests
in  each  of  the  Partnerships  to  be  acquired  by  Hemosol  as  part  of the
Arrangement;

"PARTNERSHIPS" means, collectively, the Blood Products Partnership and the  Labs
Partnership;
                                       129


"PLAN OF ARRANGEMENT" means the plan of arrangement to be proposed under section
182  of  the  OBCA, substantially  in  the form  attached  as Exhibit  1  to the
Arrangement Agreement, as may be amended, modified or supplemented from time  to
time in accordance with the Plan of Arrangement and any order of the Court prior
to the Effective Time;

"POLICY  Q-27" means  AMF Policy  Statement No.  Q-27 --  Protection of Minority
Securityholders in the Context of Certain Transactions;

"PROMETIC" means  ProMetic  Biosciences,  Ltd.,  a  wholly-owned  subsidiary  of
ProMetic Life Sciences Inc.;

"PROMETIC  MOU"  means  the  binding memorandum  of  understanding  entered into
between Hemosol and ProMetic on December 4, 2003;

"PUBLIC SHAREHOLDERS"  means  all  Shareholders excluding  MDS  and  MDS  Health
Ventures (TC) Inc.;

"PWC" means PricewaterhouseCoopers LLP, financial advisors to MDS;

"RULE  61-501" means OSC Rule 61-501 -- Insider Bids, Issuer Bids, Going Private
Transactions and Related Party Transactions;

"SEC" means the United States Securities and Exchange Commission;

"SECURITIES ACT" means the Securities Act (Ontario), as amended;

"SECURITYHOLDERS" means,  collectively,  Shareholders and  Eligible  Convertible
Securityholders;

"SHAREHOLDERS" means the holders of Hemosol Shares;

"SPECIFIED  HEMOSOL OPTIONS"  means collectively  (i) 2,766,225  Hemosol Options
with an exercise price  of $0.90 per  Hemosol Share issued  on October 29,  2003
conditional upon TSX and Shareholder approval; (ii) 775,000 Hemosol Options with
an  exercise  price of  $1.60  per Hemosol  Share  issued on  December  11, 2003
conditional upon  TSX and  Shareholder  approval; and  (iii) the  other  Hemosol
Options  set  out  in the  definition  of  "Specified Options"  in  the  Plan of
Arrangement attached as Exhibit 1 to Annex D of this Circular;

"SUBSIDIARIES"  means  749235  Ontario  Limited,  Hemosol  (USA)  Inc.,  Hemosol
Research  Corporation  and any  other  corporation of  which  outstanding voting
securities carrying more than 50% of the votes for election of directors are, or
any limited partnership, joint  venture or other entity  more than 50% of  whose
total  equity  interest  is, directly  or  indirectly, owned  or  controlled by,
Hemosol;

"SUPPLEMENTAL SUBMISSIONS"  means the  supplemental  submissions to  CCRA  dated
January  14, 2004,  January 16,  2004, January  28, 2004,  February 3,  2004 and
February 5, 2004 and  such other supplemental submissions  to CCRA prior to  the
Effective Time requesting amendments and supplements to the Tax Ruling;

"SURRENDERED  WARRANTS" means, collectively, (i)  500,000 Tranche A Warrants and
(ii) the right  to receive  2,000,000 Tranche  B Warrants,  in each  case to  be
surrendered by MDS under the Arrangement;

"TAX"  or  "TAXES" means  all federal,  state, provincial,  territorial, county,
municipal, local or foreign taxes, duties, imposts, levies, assessments, tariffs
and other charges  imposed, assessed  or collected by  a governmental  authority
including, but not limited to, (i) any gross income, net income, gross receipts,
business,  royalty,  capital, capital  gains, goods  and services,  value added,
severance, stamp, franchise, occupation, premium, capital stock, sales and  use,
real  property,  personal  property,  ad  valorem,  transfer,  licence, profits,
windfall profits, environmental, payroll,  employment, employer health,  pension
plan,  anti-dumping,  countervail,  excise,  severance,  stamp,  occupation,  or
premium tax, (ii) all withholdings on amounts paid to or by Hemosol or Labco  or
MDS  or  other Subsidiaries,  (iii) all  employment insurance  premiums, Canada,
Quebec and any  other pension  plan contributions  or premiums,  (iv) any  fine,
penalty,  interest,  or  addition to  tax,  (v)  any tax  imposed,  assessed, or
collected or payable pursuant to any tax-sharing agreement or any other contract
relating to the sharing  or payment of any  such tax, levy, assessment,  tariff,
duty,  deficiency, or fee, and (vi) any liability  for any of the foregoing as a
transferee, successor, guarantor, or by contract or by operation of law;

"TAX ACT" means the Income Tax Act (Canada), as amended;

"TAX LOSSES" means, collectively,  the aggregate of  the following amounts:  (i)
federal  non-capital  losses,  (ii) Ontario  non-capital  losses,  (iii) federal
scientific  research  and  experimental  development  deductions,  (iv)  federal
investment  tax  credits and  (v) Ontario  scientific research  and experimental
development deductions, each  as more  particularly defined  in the  Arrangement
Agreement;

                                       130


"TAX  RETURNS"  means  all returns,  reports,  declarations,  statements, bills,
schedules, forms or written  information of, or in  respect of, Taxes which  are
required to be filed with, or supplied to, any governmental authority;

"TAX  RULING" means the  tax ruling issued  by CCRA dated  September 23, 2003 in
respect of the transactions contemplated in the Arrangement Agreement,  together
with  the supplement  thereto dated  February 5,  2004, as  they may  be further
supplemented or amended from time to time;

"TRANCHE A WARRANTS" means the warrants  of Hemosol issued to MDS entitling  MDS
to  acquire, on the due  exercise thereof, up to  6,000,000 Hemosol Shares at an
exercise price of $1.00 per Hemosol Share,  on the terms and conditions set  out
in the warrant certificate dated November 22, 2002;

"TRANCHE  B  WARRANTS" means  warrants of  Hemosol to  purchase up  to 4,000,000
Hemosol Shares to be  issued to MDS  in certain circumstances  on the terms  and
conditions set out in the MDS MOU;

"TSX" means the Toronto Stock Exchange;

"U.S.  EXCHANGE ACT" means the United States Securities Exchange Act of 1934, as
amended;

"US HOLDERS"  means  a  beneficial  owner  of Hemosol  Shares  that  is  (i)  an
individual  who is a United  States citizen or resident,  (ii) a corporation (an
entity taxed as a corporation for  U.S. federal income tax purposes) created  or
organized  in the United States or under the laws of the United States or of any
state or the District of Columbia of the United States, (iii) a trust, if one or
more U.S. persons  has authority  to control  all substantial  decisions of  the
trust  and  a  U.S. court  is  able  to exercise  primary  supervision  over the
administration of the trust or (iv) an estate, the income of which is subject to
U.S. federal income tax regardless of its source;

"U.S. SECURITIES  ACT"  means the  United  States  Securities Act  of  1933,  as
amended; and

"US$" means the lawful currency of the United States of America.

                                       131


                   ANNEX A -- FORM OF ARRANGEMENT RESOLUTION

RESOLVED as a special resolution of securityholders that:

1.   The  arrangement  (the "Arrangement")  under  section 182  of  the Business
     Corporations Act  (Ontario)  substantially  as  set  out  in  the  Plan  of
     Arrangement  (the  "Plan of  Arrangement"), attached  as  Exhibit 1  to the
     Arrangement Agreement attached  as Annex  D to  the management  information
     circular  of Hemosol  Inc. (the  "Corporation") dated  March 10,  2004 (the
     "Circular") is hereby authorized and approved.

2.   The Arrangement Agreement (the "Arrangement Agreement") made as of February
     11, 2004 between the Corporation  and MDS Inc. attached  as Annex D to  the
     Circular is hereby confirmed, ratified and approved.

3.   Notwithstanding   that  this  resolution  has   been  duly  passed  by  the
     securityholders of  the  Corporation  or  that  the  Arrangement  has  been
     approved  by  the  Superior  Court  of Justice  of  Ontario,  the  board of
     directors of the  Corporation is hereby  authorized and empowered,  without
     further  notice to, or approval of, the securityholders of the Corporation:
     (i) to amend the Arrangement Agreement  and the Plan of Arrangement to  the
     extent permitted by the Arrangement Agreement; and (ii) not to proceed with
     the Arrangement or revoke this resolution at any time prior to the issue of
     a certificate giving effect to the Arrangement, but only if the Arrangement
     Agreement is terminated in accordance with Article 8 thereof.

4.   Any officer or director of the Corporation is hereby authorized, for and on
     behalf  of the Corporation, to execute  and deliver articles of arrangement
     and all other documents and do all such other acts or things as such person
     may determine  to  be  necessary  or  desirable  to  give  effect  to  this
     resolution,  the execution of  any such document  or the doing  of any such
     other act or thing being conclusive evidence of such determination.

                                       A-1


                        ANNEX B -- NOTICE OF APPLICATION

                                             Commercial List File No. 04-CL-5351

                                    ONTARIO
                           SUPERIOR COURT OF JUSTICE
                               (COMMERCIAL LIST)

IN  THE  MATTER OF  the  Business Corporations  Act,  R.S.O. 1990,  c.  B.16, as
amended, Section 182

AND IN THE MATTER OF Rule 14.05(2) of the Rules of Civil Procedure

AND IN  THE  MATTER  OF  a proposed  arrangement  involving  Hemosol  Inc.,  its
securityholders and MDS Inc.

                             NOTICE OF APPLICATION

TO:  THE RESPONDENTS

     A  LEGAL PROCEEDING HAS BEEN COMMENCED BY  THE APPLICANT. The claim made by
the Applicant appears on the following page.

     THIS APPLICATION will come on for  a hearing before a Judge presiding  over
the Commercial List at 393 University Avenue, Toronto on April 22, 2004 at 10:00
a.m. or as soon after that time as the matter can be heard.

     IF  YOU WISH TO OPPOSE  THIS APPLICATION, to receive  notice of any step in
the Application, or to be served with  any documents in the Application, you  or
an  Ontario lawyer acting for you must  forthwith prepare a Notice of Appearance
in Form  38A  prescribed by  the  Rules of  Civil  Procedure, serve  it  on  the
Applicant's  lawyer or, where the Applicant does  not have a lawyer, serve it on
the Applicant, and file it, with proof of service, in this court office, and you
or your lawyer must appear at the hearing.

     IF YOU WISH TO PRESENT AFFIDAVIT OR OTHER DOCUMENTARY EVIDENCE TO THE COURT
OR TO EXAMINE OR CROSS-EXAMINE WITNESSES ON THE APPLICATION, you or your  lawyer
must,  in addition  to serving your  Notice of  Appearance, serve a  copy of the
evidence on  the Applicant's  lawyer or,  where the  Applicant does  not have  a
lawyer,  serve it on the  Applicant, and file it, with  proof of service, in the
court office where the Application is to  be heard as soon as possible, but  not
later than 2:00 p.m. on the day before the hearing.

     IF YOU FAIL TO APPEAR AT THE HEARING, JUDGMENT MAY BE GIVEN IN YOUR ABSENCE
AND  WITHOUT FURTHER NOTICE TO  YOU. IF YOU WISH  TO OPPOSE THIS APPLICATION BUT
ARE UNABLE TO PAY LEGAL FEES, LEGAL AID MAY BE AVAILABLE TO YOU BY CONTACTING  A
LOCAL LEGAL AID OFFICE.

Dated: March 9, 2004

                                         Issued by the Superior Court of Justice
                                         of Ontario

                                         Address of the Court Office:
                                         393 University Avenue
                                         Toronto, ON M5G 1E6

TO:        THIS HONOURABLE COURT

AND TO:  ALL HOLDERS OF COMMON SHARES, WARRANTS AND BROKER COMPENSATION
         OPTIONS OF HEMOSOL INC.

                                       B-1


                                  APPLICATION

1.   The Applicant, Hemosol Inc. (the "Corporation"), makes application for:

     (a)  an Interim Order in the  form at tab 3  of this Record for  directions
          pursuant  to section 182(5)  of the Business  Corporations Act, R.S.O.
          1990, c. B.16, as amended ("OBCA");

     (b)  an order approving the plan of arrangement (the "Plan of Arrangement")
          proposed by the Corporation substantially in the form described in the
          Information Circular  to  be  distributed to  the  holders  of  common
          shares,  warrants and broker compensation  options of the Corporation,
          which is marked as Exhibit "A" to the affidavit of Dirk Alkema,  filed
          in this proceeding; and

     (c)  such further and other relief as this Honourable Court deems just.

2.   THE GROUNDS for the Application are:

     (a)  all statutory requirements under the OBCA have been fulfilled;

     (b)  the  proposed  Plan of  Arrangement is  in the  best interests  of the
          Corporation, is  fair and  reasonable to  the securityholders  of  the
          Corporation, and is put forward in good faith;

     (c)  section 182 of the OBCA;

     (d)  Rules 14.05(2) and 38 of the Rules of Civil Procedure; and

     (e)  such  further  and  other  grounds  as  counsel  may  advise  and this
          Honourable Court may permit.

3.   THE FOLLOWING  DOCUMENTARY EVIDENCE  will be  used at  the hearing  of  the
     Application:

     (a)  such Interim Order as may be granted by this Honourable Court;

     (b)  the  Affidavit of Dirk  Alkema, sworn March 8,  2004, and the exhibits
          thereto and other materials referred to therein;

     (c)  the supplementary affidavit  material, to be  sworn, and the  exhibits
          thereto and other materials referred to therein; and

     (d)  such  further  and  other materials  as  counsel may  advise  and this
          Honourable Court may permit.

<Table>
                                               
Date of Issue: March 9, 2004                      Davies Ward Phillips & Vineberg LLP
                                                  Barristers and Solicitors
                                                  1 First Canadian Place
                                                  44(th) Floor
                                                  Toronto, ON M5X 1B1
                                                  Luis Sarabia (LSUC # 37116M)
                                                  Tel: 416.863.0900
                                                  Fax: 416.863.0871
                                                  Solicitors for Hemosol Inc.
</Table>

                                       B-2


                            ANNEX C -- INTERIM ORDER

                                             Commercial List File No. 04-CL-5351

                                    ONTARIO
                           SUPERIOR COURT OF JUSTICE
                                COMMERCIAL LIST

<Table>
                                  
THE HONOURABLE                   )      TUESDAY, THE 9(TH) DAY
                                 )
MR. JUSTICE SPENCE               )      OF MARCH, 2004
</Table>

     IN THE MATTER OF  the Business Corporations Act,  R.S.O. 1990, c. B.16,  as
     amended, Section 182

     AND IN THE MATTER OF Rule 14.05(2) of the Rules of Civil Procedure

     AND IN THE MATTER OF a proposed arrangement involving Hemosol Inc., its
     securityholders
     and MDS Inc.

                                     ORDER

     THIS   MOTION,  made  without   notice  by  the   Applicant,  Hemosol  Inc.
("Hemosol"), for  an interim  order  pursuant to  section  182 of  the  Business
Corporations  Act (Ontario), R.S.O. 1990, c.  B.16, as amended (the "OBCA"), was
heard this day at 393 University Avenue, Toronto, Ontario.

     ON READING the Notice of Application  herein, the Notice of Motion  herein,
the  Affidavit of Dirk Alkema sworn March  8, 2004 and the exhibits thereto, and
upon hearing the submissions of counsel for Hemosol.

THE MEETING

1.   THIS COURT ORDERS  that Hemosol call,  hold and conduct  a special  meeting
     (the  "Meeting") of the  holders of its common  shares, warrants and broker
     compensation options (the "Securityholders") on April 20, 2004 in  Toronto,
     Ontario  to consider  and, if  deemed advisable,  to pass,  with or without
     variation, a special resolution  (the "Arrangement Resolution") to  approve
     the  arrangement described in the Plan of Arrangement attached as Exhibit 1
     to Annex D to  the Management Information Circular  of Hemosol dated  March
     10,  2004  (the  "Information Circular")  attached  as Exhibit  "A"  to the
     Affidavit of Dirk Alkema.

2.   THIS COURT ORDERS that the Meeting  shall be called, held and conducted  in
     accordance  with the provisions  of the OBCA, the  by-laws of Hemosol Inc.,
     the Information Circular and this Order.

3.   THIS COURT ORDERS that each Securityholder shall be entitled at the Meeting
     to one vote  per common  share held by  Securityholders or  which they  are
     entitled   to  receive  upon  the  full  exercise  of  warrants  or  broker
     compensation options  (and the  underlying warrants)  they hold  (excluding
     warrants held by MDS), whether such warrants or broker compensation options
     are currently exercisable or not.

4.   THIS  COURT ORDERS that the procedure for the use of proxies at the Meeting
     shall be as set out in the Information Circular.

5.   THIS COURT ORDERS that the only persons entitled to attend or speak at  the
     Meeting shall be the Securityholders, their proxy holders, the directors of
     Hemosol,  the auditors of Hemosol, and the professional legal and financial
     advisors to Hemosol,  and such  other persons  with the  permission of  the
     Chair of the Meeting.

6.   THIS  COURT ORDERS that  Hemosol may in its  discretion waive generally the
     time limits for the deposit of proxies by Securityholders, if Hemosol deems
     it advisable to do so.

                                       C-1


ADJOURNMENTS

7.   THIS COURT  ORDERS that  Hemosol, if  it deems  advisable, may  adjourn  or
     postpone  the Meeting  on one or  more occasions, without  the necessity of
     first convening the Meeting or first obtaining any vote of  Securityholders
     respecting   the  adjournment  or  postponement  and  notice  of  any  such
     adjournment or  postponement shall  be given  by press  release,  newspaper
     advertisement  or by  notice to the  Securityholders by one  of the methods
     specified in paragraph 8 herein, as  determined to be the most  appropriate
     method of communication by the Board of Directors of Hemosol.

NOTICE

8.   THIS  COURT ORDERS  that the  Information Circular,  Notice of  Meeting and
     Notice of  Application  in substantially  the  same form  as  contained  in
     Exhibits  "A", "B" and  "C", respectively, to the  Affidavit of Dirk Alkema
     (with such  amendments  thereto  as  counsel for  Hemosol  may  advise  are
     necessary  or desirable, provided that such amendments are not inconsistent
     with this Order) shall  be served on the  Securityholders of record at  the
     close  of business  on March  17, 2004  and the  directors and  auditors of
     Hemosol, by personal service or by mailing the same by prepaid ordinary  or
     first class mail to such persons at their recorded addresses as they appear
     on the books of Hemosol at the close of business on March 17, 2004 being at
     least  30 days  prior to  the date  of the  Meeting, excluding  the date of
     mailing and the date  of the Meeting,  or if no  address is shown  therein,
     then  to the last address of the  person known to the Secretary of Hemosol,
     and substantial compliance  with this paragraph  shall constitute good  and
     sufficient notice of the Meeting.

9.   THIS COURT ORDERS that the accidental failure or omission to give notice of
     the  Meeting to any one or more Securityholders or any other person, or any
     failure or  omission  to give  notice  as a  result  of events  beyond  the
     reasonable  control of Hemosol (including  without limitation any inability
     to utilize postal services) shall not constitute a breach of this Order  or
     a  defect  in the  calling  of the  Meeting  and shall  not  invalidate any
     resolution passed or proceedings taken at the Meeting.

AMENDMENTS

10. THIS COURT  ORDERS  that Hemosol  may  make such  amendments,  revisions  or
    supplements  to the Arrangement as it  may determine, without any additional
    notice to the Securityholders, and the Arrangement as so amended, revised or
    supplemented shall  be the  Arrangement  submitted to  the Meeting  and  the
    subject of the Arrangement Resolution.

VOTING

11. THIS  COURT ORDERS that votes shall be taken  at the Meeting on the basis of
    one vote per common share held by Securityholders or which they are entitled
    to receive upon the full exercise of warrants or broker compensation options
    (and the underlying warrants)  they hold (excluding  warrants held by  MDS),
    whether   such  warrants  or  broker   compensation  options  are  currently
    exercisable or not, and  that, subject to further  order of this court,  the
    Arrangement  Resolution  will  be considered  to  have been  adopted  by the
    Securityholders upon approval  by at  least 66#% of  the votes  cast by  the
    Securityholders,  voting together  as a single  class, present  in person or
    represented by proxy at the Meeting.

12. THIS COURT ORDERS that only those Securityholders present or represented  by
    proxy at the Meeting who are entitled to vote at the Meeting pursuant to the
    provisions of the OBCA shall be entitled to vote at the Meeting and, for the
    purposes of the Meeting, any spoiled votes, illegible votes, defective votes
    and abstentions shall be deemed to be votes not cast.

                                       C-2


APPLICATION FOR APPROVAL OF PLAN

13. THIS COURT ORDERS that, following the approval of the Arrangement Resolution
    at  the Meeting  in the manner  set forth  in this Order,  Hemosol may apply
    before this Court on April 22, 2004 for approval of the Plan of  Arrangement
    and  that service  of the Notice  of Application herein,  in accordance with
    paragraph 8 of this Order, shall  constitute good and sufficient service  of
    such Notice of Application upon all persons who are entitled to receive such
    Notice  of Application pursuant  to the Order  and no other  form of service
    need be made and no other material need be served on such persons in respect
    of these proceedings, unless a Notice  of Appearance is served on  Hemosol's
    solicitor,  in which case Hemosol shall serve such person with notice of the
    date of the application for approval, together with a copy of any additional
    materials to be used in support of such application.

14. THIS COURT ORDERS that  any party who wishes  to oppose the application  for
    approval  of the Arrangement  shall serve upon  Hemosol's solicitor and upon
    other parties who have filed a Notice of Appearance a notice setting out the
    basis for such opposition and a copy  of the materials to be used to  oppose
    the  application at least five  days before the date  set for the hearing to
    approve the Plan of Arrangement or such shorter time as the Court, by order,
    may allow.

                                         (signed)
                                         --------------------
                                         The Honourable Mr. Justice Spence

                                       C-3


            ANNEX D -- ARRANGEMENT AGREEMENT AND PLAN OF ARRANGEMENT

                             ARRANGEMENT AGREEMENT

                                    BETWEEN

                                  HEMOSOL INC.

                                      AND

                                    MDS INC.

                                     DATED

                               FEBRUARY 11, 2004
                                       D-1


                             ARRANGEMENT AGREEMENT

     THIS AGREEMENT is made as of the 11th day of February, 2004

B E T W E E N:

            HEMOSOL INC.,  a corporation  governed  by
            the  laws of the  Province of Ontario (the
            "CORPORATION")

            - and -

            MDS INC.,  a corporation  governed by  the
            laws of Canada ("MDS")

     WHEREAS  the Corporation  and MDS propose  to restructure  the business and
affairs of the Corporation pursuant to  an arrangement under section 182 of  the
Business Corporations Act (Ontario);

     AND  WHEREAS the arrangement will be on  the terms and conditions set forth
in the plan of arrangement attached hereto as Exhibit 1;

     AND WHEREAS  the board  of  directors of  the Corporation  has  unanimously
determined  (with  the MDS  representatives  on the  board  of directors  of the
Corporation abstaining  from  voting)  that  the  arrangement  is  fair  to  the
shareholders  of  the  Corporation  (other  than  MDS  and  its  affiliates  and
associates) and is in the best  interests of the Corporation and will  recommend
that  the shareholders of the Corporation vote in favour of the arrangement, all
on the terms and subject to the conditions contained herein;

     AND WHEREAS the board  of directors of MDS  has approved MDS entering  into
this agreement, all on the terms and subject to the conditions contained herein;

     NOW  THEREFORE  THIS  AGREEMENT  WITNESSES THAT,  in  consideration  of the
representations, warranties, covenants and agreements herein contained, and  for
other  good and valuable consideration, the receipt and sufficiency of which are
hereby acknowledged by each party, the parties hereto hereby covenant and  agree
as follows:

                                   ARTICLE 1
                                 INTERPRETATION

1.1 DEFINITIONS

     In  this Agreement,  unless the subject  matter or  context is inconsistent
therewith, the following terms have the following meanings:

     "ACQUISITION PROPOSAL" has the meaning set out in subsection 4.3(a).

    "AGREEMENT"  means  this  arrangement  agreement  as  amended,  restated  or
    supplemented and includes all Exhibits attached hereto.

    "APPLICABLE  LAW"  means  all laws,  statutes,  codes,  ordinances, decrees,
    rules, regulations,  by-laws,  judicial  or arbitral  or  administrative  or
    ministerial  or  departmental or  regulatory judgements,  orders, decisions,
    rulings or awards, including general principles of common and civil law, and
    conditions of any grant of approval, permission, authority or license of any
    court, governmental entity, statutory body (including the TSX or NASDAQ)  or
    self-regulatory   authority  applicable   to  a  Person   or  its  business,
    undertaking, property or securities.

    "ARRANGEMENT" means the  arrangement under section  182 of the  OBCA on  the
    terms and conditions set out in the Plan of Arrangement.

    "ARRANGEMENT   RESOLUTION"  means  the  resolution  of  the  Securityholders
    approving  the  Plan   of  Arrangement   as  required   by  Applicable   Law
    substantially in the form which is to be attached to the Circular.

    "ARTICLES  OF ARRANGEMENT" means  the articles of  arrangement in respect of
    the Arrangement in the form required by the OBCA to be sent to the  Director
    after the Final Order is made.

                                       D-2


    "AUDITED FINANCIAL STATEMENTS" means the audited consolidated balance sheets
    of  the Corporation as  at December 31,  2002 and 2001  and the accompanying
    audited consolidated statements of earnings, retained earnings and cash flow
    for the years then ended, including the notes thereto, and the report of the
    auditors of the Corporation thereon.

    "BANK" means The Bank of Nova Scotia or other lender under the Bank Loan.

    "BANK LOAN" means the $20,000,000 loan  facility made available by the  Bank
    to  the Corporation pursuant to a  commitment letter dated October 25, 2002,
    as amended.

    "BENEFIT PLANS"  means employee  benefit, welfare,  supplemental  employment
    benefit,  bonus,  pension,  profit  sharing,  deferred  compensation,  stock
    compensation,  stock   option  or   purchase,  retirement,   hospitalization
    insurance,   medical,  dental,  legal,  disability   and  similar  plans  or
    arrangements  or  practices  applicable  to  present  or  former  employees,
    directors  or  independent  contractors  of  a  Person  which  are currently
    maintained or participated in by a Person and each loan to a non-officer  of
    a Person and each loan to an officer or director of a Person.

    "BLOOD  PRODUCTS ASSETS"  means all  of the  assets owned  or leased  by the
    Corporation immediately prior to the Effective Time.

    "BLOOD PRODUCTS  CONTRIBUTION AGREEMENT"  means the  contribution  agreement
    contemplated  by  the  Plan  of  Arrangement  to  be  entered  into  by  the
    Corporation and the Blood Products Limited Partnership pursuant to which the
    Blood Products Limited  Partnership will acquire  the Blood Products  Assets
    and assume the Blood Products Liabilities from the Corporation.

    "BLOOD   PRODUCTS  LIABILITIES"   means  all   liabilities  (contingent  and
    otherwise) and other obligations of the Corporation immediately prior to the
    Effective Time,  including without  limitation, obligations  under the  Bank
    Loan.

    "BLOOD   PRODUCTS  LIMITED   PARTNERSHIP"  means   the  limited  partnership
    contemplated by the Plan of Arrangement that will acquire the Blood Products
    Assets from the Corporation, assume the Blood Products Liabilities from  the
    Corporation  and carry on the Business on  and after the Effective Time, and
    in  which  New  Hemosol  will   hold  a  general  partnership  interest   of
    approximately  93%  and  the  Corporation will  hold  a  limited partnership
    interest of approximately 7% upon completion of the Plan of Arrangement.

    "BLOOD PRODUCTS  LP  AGREEMENT"  means  the  limited  partnership  agreement
    contemplated  by the  Plan of  Arrangement that will  set out  the terms and
    conditions of  the Blood  Products  Limited Partnership  and which  will  be
    substantially in the form attached hereto as Exhibit 5.

    "BLOOD  PRODUCTS SECURITY  AGREEMENTS" means  the security  agreements to be
    entered into by the Blood Products Limited Partnership and the Bank pursuant
    to which  the  Blood Products  Limited  Partnership will  grant  a  security
    interest in all of its assets to the Bank and provide certain assignments in
    favour  of the Bank to secure obligations under the Bank Loan which security
    agreements  shall  be  substantially   similar  to  the  existing   security
    agreements between the Corporation and the Bank.

    "BOARD" means the board of directors of the Corporation.

    "BPP GUARANTEE" has the meaning set out in subsection 5.1(d)(vii).

    "BUSINESS"  means the business and operations  carried on by the Corporation
    and its Subsidiaries immediately prior to the Effective Time.

    "BUSINESS DAY" means a day, other  than Saturday, Sunday, or a statutory  or
    civic holiday in Toronto, Canada.

    "CANADIAN SECURITIES ADMINISTRATORS" means the securities regulators in each
    of the provinces and territories of Canada.

    "CIRCULAR"  means  the  notice of  the  Special Meeting  and  the management
    information circular of the Corporation, including all schedules thereto, to
    be mailed to Shareholders in connection with the Special Meeting, as it  may
    be amended from time to time.

    "CLASS  A  COMMON SHARES"  means the  Class  A voting  common shares  of the
    Corporation to be created and issued  at the Effective Time pursuant to  the
    Articles  of  Arrangement and  the Plan  of Arrangement  with the  terms and
    conditions set out in Appendix A to the Plan of Arrangement.

                                       D-3


    "CLASS B  NON-VOTING SHARES"  means the  Class B  non-voting shares  of  the
    Corporation  to be created and issued at  the Effective Time pursuant to the
    Articles of  Arrangement and  the Plan  of Arrangement  with the  terms  and
    conditions set out in Appendix A to the Plan of Arrangement.

    "CLASS  C  PREFERRED  SHARES" means  the  Class  C preferred  shares  of the
    Corporation to be created and issued  at the Effective Time pursuant to  the
    Articles  of  Arrangement and  the Plan  of Arrangement  with the  terms and
    conditions set out in Appendix A to the Plan of Arrangement.

    "CLINICAL PROGRAMS" has the meaning set  out in subsection (r) of Exhibit  2
    hereto.

    "COMMON  SHARES"  means common  shares in  the  capital of  the Corporation,
    including all common shares issued on the exercise of Options.

    "CONVERTIBLE SECURITIES" means  the securities of  the Corporation that  are
    convertible  or exercisable into  or otherwise give the  holder the right to
    acquire Common Shares or other securities  of the Corporation, all of  which
    are listed in the Corporation Disclosure Letter.

    "CONVERTIBLE  SECURITYHOLDERS" means  the holders  of Convertible Securities
    other than MDS and holders of Options.

    "CORPORATION DISCLOSURE LETTER"  means that  certain letter  dated the  date
    hereof delivered by the Corporation to MDS.

    "CORPORATION  INDEMNITY  AGREEMENT"  means  the  indemnity  agreement  to be
    entered into by the Corporation  and the Blood Products Limited  Partnership
    and which will be substantially in the form attached hereto as Exhibit 12.

    "CORPORATION  MATERIAL AGREEMENT" has the meaning  set out in subsection (w)
    of Exhibit 2 hereto.

    "COURT" means the Ontario Superior Court of Justice.

    "DIRECTOR" means the Director appointed under section 278 of the OBCA.

    "DISCHARGE" means  any  discharge,  emission,  release,  deposit,  issuance,
    spray,  escape,  spill,  leak,  and shall  also  have  the  various meanings
    attributed to such term in Environmental Law.

    "EFFECTIVE DATE" means the date upon  which the Plan of Arrangement  becomes
    effective  as established by the  date of issue shown  on the certificate of
    arrangement issued by the Director pursuant to section 183 of the OBCA.

    "EFFECTIVE TIME" means 12:01 a.m. (Toronto time) on the Effective Date.

    "ENVIRONMENT" means the ambient air,  all layers of the atmosphere,  surface
    water, underground water, all land, all living organisms and the interacting
    natural  systems that  include components of  air, land,  water, organic and
    inorganic matter and living organisms.

    "ENVIRONMENTAL COMPLIANCE REVIEW" means  any written review,  investigation,
    audit,  assessment  or report,  whether  prepared internally  or externally,
    relating to liability  in connection with  the Environment, compliance  with
    Environmental  Law,  or  the  existence  or  management  of  any  issues  or
    circumstances relevant to the Environment.

    "ENVIRONMENTAL  LAW"  means  all  applicable  federal,  state,   provincial,
    municipal  or local statutes, regulations,  by-laws, orders, rules, policies
    or guidelines of any  governmental or regulatory body  or agency having  the
    force  of law, and any requirements  or obligations arising under the common
    law, relating to the Environment,  the transportation of dangerous goods  or
    occupational health and safety.

    "ENVIRONMENTAL   PERMITS"  means   all  permits,   certificates,  approvals,
    consents, authorizations, registrations and  licenses issued by or  provided
    to,  as the case may be, any  government, governmental or regulatory body or
    agency pursuant to an Environmental Law.

    "ESCROW AGREEMENT"  means  the escrow  agreement  between New  Hemosol,  the
    Corporation  and  CIBC  Mellon  Trust Company  or  such  other  escrow agent
    acceptable to the  parties hereto,  acting reasonably,  contemplated by  the
    Plan  of  Arrangement and  containing the  terms and  conditions set  out in
    Exhibit 4.

    "ESCROWED REDEMPTION AMOUNT" means  the $1 million to  be held in escrow  in
    accordance with the terms of the Escrow Agreement.

                                       D-4


    "EXISTING STOCK OPTION PLAN" means the Corporation's stock option plan dated
    December 7, 2000.

    "FEDERAL   INVESTMENT  TAX  CREDITS"  means   the  amount  determined  under
    subsection 127(9) of the Federal Tax Act.

    "FEDERAL NON-CAPITAL LOSSES" means  the amounts determined under  subsection
    111(8) of the Federal Tax Act.

    "FEDERAL  SCIENTIFIC RESEARCH AND DEVELOPMENT  DEDUCTIONS" means the maximum
    amount deductible by the Corporation in computing its income for a  taxation
    year pursuant to subsection 37(1) of the Federal Tax Act.

    "FEDERAL TAX ACT" means the Income Tax Act (Canada), as amended.

    "FINAL  ORDER" means  the order  of the  Court made  in connection  with the
    approval of the Arrangement following the application therefor  contemplated
    by subsection 2.1(b)(iv) hereof, as such order may be amended or modified by
    the highest court which hears an appeal in respect of such order.

    "HEMOLINK  BUILDING"  means the  manufacturing  facility of  the Corporation
    located at 2585 Meadowpine Blvd., Mississauga, Ontario, L5N 8H9.

    "INDEPENDENT COMMITTEE" means  the committee of  the independent members  of
    the  Board  created  to, among  other  things,  review and  report  upon the
    proposed Arrangement.

    "INDEPENDENT VALUATOR" has the meaning set out in Section 2.4.

    "INTELLECTUAL  PROPERTY"  means  all  issued  patents,  patent  applications
    (whether in draft form or filed with the patent office having jurisdiction),
    copyrights,  trade-marks, tradenames (including applications  for all of the
    foregoing and renewals, divisions, extensions and reissues, where applicable
    relating thereto), maskworks, inventions and discoveries (whether patentable
    or not),  licences,  trade  secrets, patterns,  drawings,  computer  program
    software,   technical   information,  research   data,   concepts,  methods,
    procedures, designs, know-how, proprietary or confidential information of  a
    Person  and  any  and  all  rights  in  the  aforementioned  and  any  other
    intellectual property now or hereinafter owned by or licensed to the Person.

    "INTERIM ORDER" means the interim order of the Court made in connection with
    the approval of the Arrangement.

    "KPMG" means  KPMG Corporate  Finance  Inc., the  financial advisor  to  the
    Independent Committee in connection with the Arrangement.

    "LABS  ASSETS" means those assets listed on Exhibit 6 hereto used to operate
    the Labs Business which will be contributed to the Labs Limited  Partnership
    by MDS pursuant to the terms of the Labs Contribution Agreement.

    "LABS  BUSINESS" means the clinical  laboratory services business carried on
    by MDS in Ontario immediately prior to the Effective Time which, for greater
    certainty, does not include diagnostic  imaging, water testing, real  estate
    investments, the Executive Health Clinic, MDS' joint venture with University
    Health  Network  called  Toronto  Medical  Laboratories  and  MDS' financial
    interest in Windsor Medical Laboratories.

    "LABS CONTRIBUTION AGREEMENT" means the contribution agreement  contemplated
    by  the Plan of Arrangement  to be entered into by  MDS and the Labs Limited
    Partnership pursuant to  which MDS will  contribute the Labs  Assets to  the
    Labs Limited Partnership.

    "LABS  FINANCIAL  INFORMATION"  means  the  summary  of  unaudited financial
    information of the Labs Business compiled from accounting records of MDS  in
    connection  with the Arrangement  for the fiscal years  of MDS ended October
    31, 2001, 2002  and 2003  as attached  as Exhibit  1 to  the MDS  Disclosure
    Letter.

    "LABS  LEASED LOCATIONS" means  those leased locations  of the Labs Business
    set out in the MDS Disclosure Letter at Exhibit 2.

    "LABS LIMITED PARTNERSHIP" means the limited partnership contemplated by the
    Plan of Arrangement that will acquire the Labs Assets and carry on the  Labs
    Business  on and after  the Effective Time,  and in which  Subco will hold a
    0.01% general partnership interest  and the Corporation  will hold a  99.99%
    limited partnership interest upon the completion of the Arrangement.

    "LABS  LIMITED PARTNERSHIP  INTEREST" means  the 99.99%  limited partnership
    interest in the Labs Limited Partnership.
                                       D-5


    "LABS LP AGREEMENT" means the limited partnership agreement contemplated  by
    the  Plan of Arrangement that  will set out the  terms and conditions of the
    Labs Limited  Partnership  and  which  will be  substantially  in  the  form
    attached hereto as Exhibit 7.

    "LABS  MANAGEMENT AGREEMENT"  means the  management agreement  to be entered
    into by MDS and the Labs Limited Partnership on the Effective Date  pursuant
    to  which MDS will provide the management and administrative services to the
    Labs Limited Partnership specified therein  and which will be  substantially
    in the form attached hereto as Exhibit 8.

    "LABS  MATERIAL  AGREEMENT" has  the meaning  set out  in subsection  (k) of
    Exhibit 3 hereto.

    "LICENSING  ACT"  means  the  Laboratory  and  Specimen  Collection   Centre
    Licensing Act (Ontario).

    "MATERIAL  ADVERSE EFFECT"  with respect  to a  Person or  the Labs Business
    means a  material  adverse  effect on  the  business,  affairs,  properties,
    assets,  liabilities, capitalization, operations,  results of operations, or
    condition (financial or otherwise) of  such Person and its subsidiaries  (in
    the case of the Corporation, the Subsidiaries) or the Labs Business taken as
    a  whole,  other than  a material  adverse effect  relating to:  (a) general
    political, financial  or  economic conditions  or  the state  of  securities
    markets in general; (b) any change in the trading price of the securities of
    such  Person  other  than  as  a  result  of  the  foregoing;  and  (c)  the
    biotechnology industry or the  laboratory services industry, as  applicable,
    in general and not specifically relating to or affecting such Person.

    "MDS CLASS A SHARES" means that number of Class A Common Shares equal to the
    difference  between  (a)  47.5% of  the  Class  A Common  Shares  issued and
    outstanding upon  completion of  the Arrangement  or such  lesser number  of
    Class  A Common Shares determined by MDS  in its sole discretion and (b) the
    number of  Class  A Common  Shares  held by  MDS  immediately prior  to  the
    transfer of the Labs Limited Partnership Interest to the Corporation.

    "MDS  CLASS B SHARES"  means that number  of Class B  Non-Voting Shares that
    will result in  MDS holding  (in combination with  the MDS  Class A  Shares)
    99.5%  of the total number  of issued and outstanding  Class A Common Shares
    and Class B Non-Voting Shares upon completion of the Arrangement.

    "MDS DISCLOSURE  LETTER" means  that certain  letter dated  the date  hereof
    delivered by MDS to the Corporation.

    "MDS  GUARANTEE" means the guarantee  dated November 22, 2002  by MDS of the
    Corporation's obligations under  the Bank Loan,  as it may  be amended  from
    time to time.

    "MDS  INDEMNITY AGREEMENT" means the indemnity  agreement to be entered into
    by New Hemosol and MDS and which will be substantially in the form  attached
    hereto as Exhibit 13.

    "MDS  MOU"  means  the  memorandum  of  understanding  between  MDS  and the
    Corporation dated October 22, 2002, as amended on December 23, 2003.

    "MEETING DATE" means the date of the Special Meeting.

    "MINORITY SHAREHOLDERS" means  all of  the Shareholders other  than MDS  and
    such  other  Persons whose  votes  cannot be  included  for the  purposes of
    minority  approval  (as  such  term  is  defined  in  Rule  61-501)  of  the
    Arrangement Resolution at the Special Meeting.

    "NASDAQ" means The NASDAQ National Market.

    "NEW  HEMOSOL" means Hemosol  Corp., a corporation  to be incorporated under
    the OBCA and which will hold an approximate 93% general partnership interest
    in the Blood  Products Limited Partnership  upon completion of  the Plan  of
    Arrangement.

    "NEW  HEMOSOL MOU" means the memorandum of understanding between MDS and New
    Hemosol to be dated the Effective Date relating to the issuance of  warrants
    to  purchase up  to 2,000,000 New  Hemosol Shares on  substantially the same
    terms as the Tranche B Warrants  except that the number of warrants  vesting
    each  month shall be reduced by 50%  and the exercise price shall be reduced
    by $0.04 per warrant.

    "NEW HEMOSOL SHARE  CONDITIONS" means the  terms and conditions  of the  New
    Hemosol Shares set out in Exhibit 9 hereto.

                                       D-6


    "NEW  HEMOSOL SHARES" means  the common shares  of New Hemosol  that will be
    issued pursuant to the Plan of Arrangement.

    "OBCA" means the Business Corporations Act (Ontario).

    "ONTARIO NON-CAPITAL LOSSES" means the  amounts determined for the  purposes
    of  the  Corporations  Tax  Act  (Ontario),  as  amended,  by  reference  to
    subsection 111(8) of the Federal Tax Act.

    "ONTARIO SCIENTIFIC RESEARCH  AND EXPERIMENTAL DEVELOPMENT  DEDUCTIONS'means
    the maximum amount deductible by the Corporation in computing its income for
    the purposes of the Corporations Tax Act (Ontario), as amended, by reference
    to subsection 37(1) of the Federal Tax Act.

    "OPTIONS"  means options  to purchase Common  Shares issued  pursuant to the
    Existing Stock Option Plan.

    "OUTSIDE DATE" means May 31, 2004.

    "PARTNERSHIP INTEREST  TRANSFER  AGREEMENT"  means  the  transfer  agreement
    contemplated  by the Plan of Arrangement pursuant to which MDS will transfer
    the Labs Limited Partnership Interest  to the Corporation and surrender  for
    cancellation  500,000 Tranche A Warrants and  the right to acquire 2,000,000
    Tranche B Warrants in consideration for the issuance to MDS of the MDS Class
    A Shares and the MDS Class B Shares and the Corporation shall grant to MDS a
    right of first refusal in respect  of the Labs Limited Partnership  Interest
    exercisable  in the event  (i) the Corporation receives  a bona fide written
    offer from a third party to purchase the Labs Limited Partnership  Interest;
    (ii)  any steps are taken to wind  up the Labs Limited Partnership; or (iii)
    the Labs Limited Partnership  proposes to sell all  or substantially all  of
    its assets, otherwise than in the ordinary course of business.

    "PERSON"  means any individual, partnership, limited partnership, syndicate,
    sole proprietorship, company or corporation, with or without share  capital,
    unincorporated  association,  trust,  trustee,  executor,  administrator, or
    other legal personal representative,  regulatory body or agency,  government
    or   governmental  agency,  authority  or   entity,  however  designated  or
    constituted.

    "PLAN OF ARRANGEMENT"  means the plan  of arrangement to  be proposed  under
    section  182 of the OBCA, substantially in the form attached as Exhibit 1 to
    this Agreement, as amended,  modified or supplemented from  time to time  in
    accordance herewith and any order of the Court.

    "POLICY   Q-27"  means  Policy  Statement   Q-27  of  the  Agence  nationale
    d'encadement du secteur financier.

    "PREMISES" has the meaning set out in subsection (q) of Exhibit 2.

    "PROCEEDINGS" has the meaning set out in subsection (l) of Exhibit 2.

    "RECIPIENT" has the meaning set out in Section 10.3.

    "RULE 61-501" means Rule 61-501 -- Insider Bids, Issuer Bids, Going  Private
    Transactions  and  Related  Party  Transactions  of  the  Ontario Securities
    Commission.

    "SECURITIES ACT" means the Securities Act (Ontario).

    "SHARE CONSOLIDATION"  means  the  consolidation of  the  Common  Shares  as
    approved by the Shareholders on January 22, 2004.

    "SHAREHOLDERS" means the registered holders of Common Shares.

    "SECURITYHOLDERS" means Shareholders and Convertible Securityholders.

    "SPECIAL   MEETING"  means  the  special  meeting  of  the  Securityholders,
    including any  adjournment  or  postponement  thereof,  to  be  convened  to
    consider and, if thought advisable, to pass the Arrangement Resolution.

    "SUBCO"  means MDS  Laboratory Services  Inc., a  wholly-owned subsidiary of
    MDS, which  will hold  a  0.01% general  partnership  interest in  the  Labs
    Limited Partnership upon completion of the Arrangement.

    "SUBSIDIARY"  means  749235  Ontario Limited,  Hemosol  (USA)  Inc., Hemosol
    Research Corporation and any other  corporation of which outstanding  voting
    securities  carrying at least 50% of the votes for the election of directors
    are, or any general or limited partnership, joint venture or other entity at
    least 50% of whose total equity  interest is, directly or indirectly,  owned
    or  controlled  by,  the  Corporation,  at the  date  of  this  Agreement or
    hereafter.

                                       D-7


    "SUBSTANCE" means any  substance or material  which under any  Environmental
    Law   is   defined  as   "hazardous",  "toxic",   "deleterious",  "caustic",
    "dangerous", a "contaminant", a "pollutant", a "dangerous good", a  "waste",
    a "source of contamination" or a "source of a pollutant".

    "SUPERIOR PROPOSAL" has the meaning set out in subsection 4.3(a).

    "SUPPLEMENTAL  SUBMISSIONS" means the supplemental submissions to the Canada
    Customs & Revenue Agency dated January  14, 2004, January 16, 2004,  January
    28,  2004, February 3, 2004 and February 5, 2004 and such other supplemental
    submissions to the Canada  Customs & Revenue Agency  prior to the  Effective
    Time  requesting  amendments  and  supplements  to  the  Tax  Ruling  and an
    extension  of  time  within  which  the  proposed  transactions  are  to  be
    completed.

    "TAX"  or "TAXES" means all federal, state, provincial, territorial, county,
    municipal, local  or foreign  taxes, duties,  imposts, levies,  assessments,
    tariffs  and other charges imposed, assessed  or collected by a governmental
    authority including, but not limited to,  (i) any gross income, net  income,
    gross  receipts,  business,  royalty,  capital,  capital  gains,  goods  and
    services, value  added, severance,  stamp, franchise,  occupation,  premium,
    capital  stock, sales and use, real property, personal property, ad valorem,
    transfer,  license,  profits,  windfall  profits,  environmental,   payroll,
    employment,   employer  health,  pension  plan,  anti-dumping,  countervail,
    excise, severance, stamp, occupation, or premium tax, (ii) all  withholdings
    on  amounts paid to or by a Person, (iii) all employment insurance premiums,
    Canada, Quebec and any  other pension plan  contributions or premiums,  (iv)
    any  fine,  penalty, interest,  or  addition to  tax,  (v) any  tax imposed,
    assessed, or collected or payable  pursuant to any tax-sharing agreement  or
    any other contract relating to the sharing or payment of any such tax, levy,
    assessment, tariff, duty, deficiency, or fee, and (vi) any liability for any
    of the foregoing as a transferee, successor, guarantor, or by contract or by
    operation of law.

    "TAX  RETURNS" means all returns,  reports, declarations, statements, bills,
    schedules, forms or written  information of, or in  respect of, Taxes  which
    are required to be filed with, or supplied to, any governmental authority.

    "TAX  RULING" means the tax ruling issued by Canada Customs & Revenue Agency
    dated September 23, 2003 in respect of the transactions contemplated  herein
    and  the supplement thereto  dated February 5,  2004 as they  may be further
    supplemented or amended from time to time.

    "TRANCHE A WARRANTS"  means the warrants  of the Corporation  issued to  MDS
    entitling  MDS  to acquire,  on the  due exercise  thereof, up  to 6,000,000
    Common  Shares,  on  the  terms  and  conditions  set  out  in  the  warrant
    certificate dated November 22, 2002.

    "TRANCHE  B WARRANTS"  means warrants of  the Corporation to  purchase up to
    4,000,000 Common Shares to be issued to MDS in certain circumstances on  the
    terms and conditions set out in the MDS MOU.

    "TSX" means the Toronto Stock Exchange.

    "UNAUDITED  FINANCIAL STATEMENTS"  means the  unaudited consolidated balance
    sheet of  the Corporation  as at  September 30,  2003 and  the  accompanying
    unaudited  consolidated statements of  loss, deficit and  cash flows for the
    three-month and nine-month periods then ended.

    "UNDEDUCTED BALANCES"  means collectively,  the undeducted  balances of  the
    following  accounts of the Corporation: (i) Federal Non-Capital Losses, (ii)
    Ontario  Non-Capital   Losses,  (iii)   Federal  Scientific   Research   and
    Development Deductions, (iv) Federal Investment Tax Credits, and (v) Ontario
    Scientific Research and Experimental Development Deductions.

1.2 CURRENCY

     All  sums of money which are referred to in this Agreement are expressed in
lawful money of Canada unless otherwise specified.

1.3 INTERPRETATION NOT AFFECTED BY HEADINGS, ETC.

     The division of this Agreement  into articles, sections and other  portions
and  the insertion of headings  are for convenience of  reference only and shall
not affect the construction or interpretation of this Agreement.

                                       D-8


1.4 NUMBER, ETC.

     Unless the subject matter or context requires the contrary, words importing
the singular  number only  shall include  the plural  and vice  versa and  words
importing the use of any gender shall include all genders.

1.5 DATE FOR ANY ACTION

     In  the event that any date on which any action is required or permitted to
be taken hereunder by  any person is  not a Business Day,  such action shall  be
required to be taken on the next succeeding day which is a Business Day.

1.6 REFERENCES

     Any  reference in this Agreement to a statute includes all regulations made
thereunder, all amendments to such  statute in force from  time to time and  any
statute or regulation that supplements or supersedes such statute or regulation.

     Unless  the context otherwise requires, any  reference in this Agreement to
"transactions contemplated herein" includes, without limiting the generality  of
the foregoing, all parts of the Plan of Arrangement.

1.7 ENTIRE AGREEMENT

     This  Agreement (including the  Exhibits hereto, the  MDS Disclosure Letter
and the Corporation Disclosure Letter) constitutes the entire agreement  between
the  parties hereto pertaining  to the subject matter  hereof and supersedes all
prior agreements, understandings, negotiations and discussions, whether oral  or
written,  between the parties hereto with  respect to the subject matter hereof.
There are no representations, warranties,  covenants or conditions with  respect
to the subject matter hereof except as contained or referred to herein.

1.8 ADJUSTMENTS

     Any  reference herein or  in a document  referred to herein  to a number of
Common Shares or other securities referable  to such shares shall be subject  to
appropriate  adjustment in the  event of the Share  Consolidation or other event
that results in  the reclassification of  the Common Shares,  adjustment to  the
number  of Common  Shares outstanding  or changes  the Common  Shares into other
shares, securities or other property.

1.9 EXHIBITS

     The following  are the  Exhibits  attached to  and incorporated  into  this
Agreement by reference and deemed to be a part hereof:

<Table>
                   
    Exhibit 1     --     Plan of Arrangement
    Exhibit 2     --     Representations and Warranties of the Corporation
    Exhibit 3     --     Representations and Warranties of MDS
    Exhibit 4     --     Escrow Agreement Terms
    Exhibit 5     --     Blood Products LP Agreement
    Exhibit 6     --     Labs Assets
    Exhibit 7     --     Labs LP Agreement
    Exhibit 8     --     Labs Management Agreement
    Exhibit 9     --     New Hemosol Share Conditions
    Exhibit 10    --     Consents, Authorizations etc. of the Corporation
    Exhibit 11    --     Consents, Authorizations etc. of MDS
    Exhibit 12    --     Corporation Indemnity Agreement
    Exhibit 13    --     MDS Indemnity Agreement
</Table>

                                   ARTICLE 2
                                THE ARRANGEMENT

2.1 THE ARRANGEMENT

     (a)  The  Corporation and  MDS hereby agree  that the  Arrangement shall be
          implemented in accordance with and subject to the terms and conditions
          contained in this Agreement and the Plan of Arrangement.

     (b)  The Corporation covenants in favour of MDS that the Corporation shall:

                                       D-9


        (i)   as soon as  reasonably practicable and  in co-operation with  MDS'
              counsel,  bring an  application before the  Court in  a manner and
              form acceptable to MDS, acting reasonably, pursuant to  subsection
              182(5)  of the  OBCA for  the Interim  Order providing  for, among
              other things, the calling  and holding of  the Special Meeting  as
              soon as is reasonably practicable following the date hereof and in
              any  event to hold  the meeting by  April 30, 2004  (or such later
              date as may be mutually agreed by the parties, acting reasonably);

        (ii)  convene and hold the Special Meeting for the purpose of having the
              Securityholders  consider  the  Arrangement  Resolution  and   the
              amendment and restatement of the general by-law of the Corporation
              (and,  with the prior approval of  MDS, acting reasonably, for any
              other proper purpose  as may  be set out  in the  notice for  such
              meeting);

        (iii) after  having called the  Special Meeting, not,  without the prior
              written consent of  MDS, acting reasonably,  adjourn, postpone  or
              cancel  the  Special Meeting  except as  may  be required  to meet
              quorum requirements or as permitted under this Agreement;

        (iv) if the Arrangement Resolution is approved at the Special Meeting by
             the Securityholders  as required  by the  Interim Order,  bring  an
             application,  as soon  as reasonably practicable  after the Special
             Meeting, before the Court in a  manner and form acceptable to  MDS,
             acting  reasonably, pursuant to  subsection 182(5) of  the OBCA for
             the Final Order approving the Arrangement;

        (v)  if the  Final Order  is obtained,  subject to  the satisfaction  or
             waiver  of  the  conditions set  forth  in  Article 6,  as  soon as
             reasonably practicable thereafter, send Articles of Arrangement and
             such other documents  as may  be required  in connection  therewith
             under  the  OBCA in  a manner  and form  acceptable to  MDS, acting
             reasonably, to  the  Director to  give  effect to  the  Arrangement
             pursuant to subsection 183(1) of the OBCA; and

        (vi) permit  MDS and MDS'  counsel to review and  comment upon drafts of
             all material to  be filed by  the Corporation with  the Court,  the
             Director  and the Canadian  Securities Administrators in connection
             with the Arrangement (including  the Circular) prior to  finalizing
             and  filing such materials.  The Corporation shall  also provide to
             MDS and MDS'  counsel on a  timely basis copies  of any notices  of
             appearance  or other court  documents served on  the Corporation or
             its counsel in respect  of the application for  the Final Order  or
             any  appeal  therefrom or  any notice  received by  the Corporation
             indicating any intention to appeal the Final Order.

2.2 INTERIM ORDER

     The notice  of  motion  for  the  application  referred  to  in  subsection
2.1(b)(i) shall request that the Interim Order provide:

        (a)  for  the  class of  persons to  whom  notice is  to be  provided in
             respect of  the Arrangement  and the  Special Meeting  and for  the
             manner in which such notice is to be provided;

        (b)  that  the only  requisite approval  for the  Arrangement Resolution
             shall be 66 2/3% of the votes cast on the Arrangement Resolution by
             Securityholders present  in  person  or by  proxy  at  the  Special
             Meeting  with Convertible  Securityholders and  Shareholders voting
             together  as  one  class  and  Convertible  Securityholders   being
             entitled  to one  vote for  each Common  Share which  they would be
             entitled to  have  issued  to  them if  they  exercised  all  their
             Convertible  Securities  held  by them,  without  reference  to any
             vesting periods or option price and a majority of the votes cast on
             the Arrangement  Resolution  by Minority  Shareholders  present  in
             person or by proxy at the Special Meeting; and

        (c)  that, in all other respects, the terms, restrictions and conditions
             of  the by-laws and  articles of the  Corporation, including quorum
             requirements and all other matters,  shall apply in respect of  the
             Special Meeting.

2.3 ARTICLES OF ARRANGEMENT

     The Articles of Arrangement shall, with such other matters as are necessary
to  effect the Arrangement and  all as subject to the  provisions of the Plan of
Arrangement,   provide   for   the   events    described   in   the   Plan    of

                                       D-10


Arrangement.  The Articles of  Arrangement shall be in  form satisfactory to MDS
and the Corporation, each acting reasonably.

2.4 VALUE DETERMINATION

     As soon as reasonably  practicable after the  date hereof, the  Corporation
and  MDS shall determine the following: (i)  the value of the Tranche A Warrants
and Tranche B Warrants to be surrendered for cancellation by MDS under the  Plan
of  Arrangement; and  (ii) the  allocation of  the value  of the  Blood Products
Assets for purposes of the election under subsection 97(2) of the Tax Act (each,
an "ASSET VALUE").

     If the Corporation and  MDS cannot agree  on any Asset  Value by March  31,
2004,  the Corporation  and MDS shall  appoint a  mutually acceptable accounting
firm or investment banking firm that  is independent of each of the  Corporation
and  MDS (an "INDEPENDENT VALUATOR") to determine the Asset Value as promptly as
practicable and  in  any  event  within 30  days  after  such  appointment.  The
Independent Valuator shall be instructed to provide the Corporation and MDS with
full  and open access to the working papers and determinations made and prepared
by the Independent  Valuator. The  fees of  such Independent  Valuator shall  be
borne  equally by the Corporation and MDS. The parties shall co-operate with the
Independent Valuator and provide it with the information it requests in order to
make its  determination.  The decision  of  the Independent  Valuator  shall  be
binding upon the parties hereto.

                                   ARTICLE 3
                         REPRESENTATIONS AND WARRANTIES

3.1 REPRESENTATIONS AND WARRANTIES OF THE CORPORATION

     The  Corporation hereby represents and warrants  to MDS as to those matters
set  out  in  Exhibit  2  and  acknowledges  that  MDS  is  relying  upon  these
representations  and warranties  in connection  with the  entering into  of this
Agreement and the completion of the transactions contemplated by this Agreement.

3.2 REPRESENTATIONS AND WARRANTIES OF MDS

     MDS hereby represents and warrants to  the Corporation as to those  matters
set out in Exhibit 3 and acknowledges that the Corporation is relying upon these
representations  and warranties  in connection  with the  entering into  of this
Agreement and the completion of the transactions contemplated by this Agreement.

                                   ARTICLE 4
                          COVENANTS OF THE CORPORATION

4.1 CONDUCT OF BUSINESS

     Prior to the Effective Time, unless  MDS otherwise agrees in writing or  as
otherwise  expressly permitted by  this Agreement, the  Corporation covenants as
follows:

     (a)  The Corporation shall, and  shall cause each  of its Subsidiaries  to,
          conduct its and their respective business only in, not take any action
          except  in,  and maintain  their respective  facilities in  the usual,
          ordinary and  regular  course of  business  and consistent  with  past
          practice   (which  includes,  for  greater  certainty,  activities  in
          connection with  contract manufacturing  at the  Hemolink Building  as
          previously publicly disclosed by the Corporation).

     (b)  The   Corporation  shall  not,  and  shall   not  permit  any  of  its
          Subsidiaries to, directly or indirectly, do or permit to occur any  of
          the following (provided that the following shall not limit the ability
          of  the Corporation to comply with any existing obligations which have
          been publicly  disclosed or  otherwise set  forth in  the  Corporation
          Disclosure  Letter or to complete any transaction contemplated in this
          Agreement):

        (i)   issue, sell, pledge, lease,  dispose of or  encumber, or agree  to
              issue,  sell, pledge, lease, dispose of or encumber any shares of,
              or any options, warrants, conversion  privileges or rights of  any
              kind  to  acquire any  shares of,  the Corporation  or any  of its
              Subsidiaries, other than  (x) pursuant  to the  exercise of  stock
              options,  share purchase rights or other securities outstanding on
              the date  hereof and  (y) the  issue of  up to  19,041,057  Common
              Shares  (or  securities  convertible or  exchangeable  into Common
              Shares), which includes, for  greater certainty, 1,000,000  Common
              Shares  to be  issued to  ProMetic BioSciences  Ltd. as previously
              publicly disclosed by the Corporation;

                                       D-11


        (ii)  amend or propose to  amend its articles or  by-laws other than  in
              respect   of  the  Share  Consolidation  and  as  contemplated  by
              subsection 2.1(b)(ii);

        (iii) declare, set  aside  or pay  any  dividend or  other  distribution
              payable  in cash, stock, property or otherwise with respect to any
              securities of the Corporation;

        (iv) redeem,  purchase  or  offer  to  purchase  any  shares  or   other
             securities of the Corporation or any of its Subsidiaries;

        (v)  reorganize,  amalgamate  or merge  the  Corporation or  any  of its
             Subsidiaries with  any other  person, corporation,  partnership  or
             other business organization;

        (vi) reduce  the  stated  capital  of  the  Corporation  or  any  of its
             Subsidiaries;

        (vii) acquire or agree to acquire (by merger, amalgamation,  acquisition
              of  stock or assets or  otherwise) any corporation, partnership or
              other business organization  or division, or  acquire or agree  to
              acquire any assets with aggregate value greater than $500,000;

        (viii) dispose  of  or agree  to  dispose of  (by  merger, amalgamation,
               acquisition of  stock or  assets or  otherwise) any  corporation,
               partnership  or  other  business  organization  or  division,  or
               dispose of, pledge,  lease or  encumber or agree  to dispose  of,
               pledge, lease or encumber any assets with aggregate value greater
               than $500,000; or

        (ix) incur  or commit  to incur any  indebtedness for  borrowed money or
             issue any debt securities, or agree to give, be a party or be bound
             by any guarantee of indebtedness, indemnity or suretyship or  other
             obligations  of any person, or  become contingently responsible for
             such indemnity or suretyship or obligations in an aggregate  amount
             greater than $500,000.

     (c)  The  Corporation shall use its reasonable efforts to cause its current
          insurance (or re-insurance) policies not to be cancelled or terminated
          or any of the coverage thereunder to lapse, unless simultaneously with
          such  termination,   cancellation  or   lapse,  replacement   policies
          underwritten  by  insurance  or re-insurance  companies  of nationally
          recognized standing providing  coverage equal to  or greater than  the
          coverage  under the  cancelled, terminated  or lapsed  policies are in
          full force and effect.

     (d)  The Corporation shall not and shall cause each of its Subsidiaries  to
          not  terminate the services of any of their key officers and employees
          if  such  termination  would  result  in  the  payment  of  severance,
          parachute,  bonus  or  other  compensation  or  result  in  a material
          increase in liability to the Corporation.

     (e)  The Corporation shall not  settle or compromise  any claim brought  by
          any  present,  former or  purported holder  of  any securities  of the
          Corporation in connection with  the transactions contemplated by  this
          Agreement.

     (f)  The  Corporation shall not take any action or enter into any agreement
          that would be  inconsistent with  the Tax Ruling  or the  Supplemental
          Submissions,  that would materially reduce  the Undeducted Balances or
          that would result in a material impairment in or materially  adversely
          affect  the  ability  of  the Corporation  to  utilize  its Undeducted
          Balances after the Effective Time as contemplated by the Tax Ruling.

4.2 SUPPORT COVENANT OF THE CORPORATION

     The Corporation covenants as follows:

     (a)  The Board shall recommend that  Securityholders vote in favour of  the
          Arrangement  Resolution and shall  not modify, amend  or withdraw such
          recommendation  or  resolve   to  modify,  amend   or  withdraw   such
          recommendation except as permitted by this Agreement.

     (b)  The  Corporation shall prepare the Circular which shall include, among
          other things,  a  copy  of  the Plan  of  Arrangement  and  any  other
          documents  required by the Securities Act or other Applicable Laws and
          the Corporation shall  mail the Circular  and any other  documentation
          required  in connection with the Special Meeting to Securityholders no
          later than  March 30,  2004 (or  such later  date as  may be  mutually
          agreed  by  the parties,  acting reasonably)  and, subject  to section
          2.1(b)(iii), shall hold and convene the Special Meeting within 35 days
          after the date of such mailing (or such longer period as may be agreed
          by  MDS,  acting  reasonably).  Notwithstanding  the  foregoing,   the
          Corporation  shall permit MDS  and MDS' counsel  to review and comment
          upon drafts of the  Circular prior to  finalizing and filing  provided
          that

                                       D-12


          MDS  acknowledges  and agrees  that whether  or  not the  comments are
          appropriate will be determined by the Corporation, acting reasonably.

     (c)  The Corporation shall prepare and  deliver to the Securityholders  the
          Circular  in accordance with all Applicable  Laws. With respect to the
          portions of the Circular relating solely to MDS and the Labs  Business
          (the  "LABS DISCLOSURE"), the Corporation shall rely entirely upon the
          information provided by or on behalf of MDS expressly for the  purpose
          of  inclusion  in the  Circular  pursuant to  Section  5.1(c), without
          having to  make or  rely  upon any  independent  inquiries as  to  the
          accuracy   or  completeness   thereof,  and  shall   have  no  further
          obligation, responsibility or liability for its accuracy, completeness
          or correctness  in that  regard. The  Corporation covenants  with  and
          represents and warrants to MDS that the information to be contained in
          the Circular other than the Labs Disclosure (including any information
          incorporated    therein   by    reference)   will    not   contain   a
          misrepresentation (as such term is defined in the Securities Act).

4.3 NON-SOLICITATION

     (a)  The  Corporation  and   its  Subsidiaries  shall   not,  directly   or
          indirectly,   through  any  officer,  director,  employee,  investment
          broker, representative, consultant or agent of the Corporation or  any
          of  its  Subsidiaries, or  otherwise,  solicit, initiate  or encourage
          (including by way of furnishing information or entering into any  form
          of agreement, arrangement or understanding) any inquiries or proposals
          regarding   any  merger,   amalgamation,  arrangement,  restructuring,
          take-over bid,  sale  or  purchase of  substantial  assets  (including
          without  limitation tax  carryforward balances),  sale or  purchase of
          treasury shares, any equity interest or rights or any other  interests
          therein   or  thereto  (other  than   as  contemplated  by  subsection
          4.1(b)(i))  or   similar   transactions  or   business   combinations,
          reorganizations  or recapitalizations including without limitation any
          transaction that would be inconsistent with the Tax Ruling (any of the
          foregoing inquiries  or  proposals  being referred  to  herein  as  an
          "ACQUISITION   PROPOSAL"),  or  participate   in  any  discussions  or
          negotiations regarding, or furnish to any person any information  with
          respect  to, or  otherwise co-operate  in any  way with,  or assist or
          participate in, facilitate or encourage, any effort or attempt by  any
          other  person  to do  or seek  to  do any  of the  foregoing, provided
          nothing contained in this subsection 4.3(a) or in any other  provision
          of  this Agreement  (including without  limitation Section  4.2) shall
          prevent the Board or the Corporation from responding to,  considering,
          negotiating  and entering  into agreements relating  to an unsolicited
          bona fide  written Acquisition  Proposal that  did not  result from  a
          breach  of this  Section 4.3  and which  the Board  determines in good
          faith and  in the  proper  discharge of  its fiduciary  duties  (after
          consultation with its financial and legal advisors and after receiving
          advice  from outside  counsel to the  effect that to  take such action
          would be a proper  exercise of the  directors' fiduciary duties  under
          Applicable  Laws) would, if consummated  in accordance with its terms,
          result in  a transaction  more  favourable to  the holders  of  Common
          Shares  generally (without taking  into account any  benefits that MDS
          and its associates  and affiliates may  receive under this  Agreement)
          than   the  transaction  contemplated  by  this  Agreement  (any  such
          Acquisition  Proposal  being  referred   to  herein  as  a   "SUPERIOR
          PROPOSAL").

     (b)  The Corporation shall not release any third party from the prohibition
          from taking steps to initiate an Acquisition Proposal contained in any
          confidentiality  agreement in favour  of the Corporation  unless it is
          determined by  the Board  that the  third party  has made  a  Superior
          Proposal.

     (c)  The Corporation shall immediately cease and cause to be terminated any
          existing discussions or negotiations with any parties (other than MDS)
          with respect to any potential Acquisition Proposal and in that regard,
          the   Corporation  hereby  confirms  that   there  is  no  outstanding
          Acquisition  Proposal  that  has   not  expired  or  terminated.   The
          Corporation  shall immediately  notify MDS  of any  future Acquisition
          Proposal or of any request for non-public information relating to  the
          Corporation  or any  of its  Subsidiaries in  connection with  such an
          Acquisition Proposal or for access to the properties, books or records
          of the Corporation or any of its Subsidiaries by any person or  entity
          that  informs  any  officer or  director  of the  Corporation  or such
          Subsidiary that it is considering making, or has made, an  Acquisition
          Proposal.  Such notice to MDS shall be  made, from time to time, first
          immediately orally and then promptly in writing and shall indicate all
          such details of the proposal, inquiry or contact known to such  person
          as  MDS may reasonably  request, including the  identity of the person
          making such  proposal,  inquiry  or contact  and  all  material  terms
          thereof.
                                       D-13


     (d)  If  the Board  receives a  request for  non-public information  from a
          party who proposes to the Corporation a bona fide written  Acquisition
          Proposal  (details  of which  have been  provided  to MDS  pursuant to
          subsection (c) hereof) and the Board determines that such proposal  is
          a  Superior Proposal then, and only  in such case, the Corporation may
          provide such party with access to non-public information regarding the
          Corporation and  its  Subsidiaries,  provided such  party  has  either
          previously  entered or  then enters  into a  confidentiality agreement
          substantially similar  and not  less onerous  to that  then in  effect
          between  the Corporation and  MDS. The Corporation  agrees to promptly
          send a copy of any such confidentiality agreement to MDS.

     (e)  The  Corporation  shall  ensure  that  the  officers,  directors   and
          employees  of the Corporation  and its Subsidiaries  and any agents or
          other advisors  or representatives  retained  by the  Corporation  are
          aware of the provisions of this Section 4.3, and the Corporation shall
          be responsible for any breach of this Section 4.3 by such parties.

4.4 OTHER COVENANTS

     (a)  The  Corporation covenants to  perform all obligations  required to be
          performed by it under this Agreement and to do all such other acts and
          things as may be necessary in order to consummate and make  effective,
          as  soon as  reasonably practicable, the  transactions contemplated by
          this Agreement and, without limiting the generality of the  foregoing,
          to:

        (i)   use  all commercially reasonable efforts to obtain the approval of
              Securityholders to  the  Arrangement  Resolution  at  the  Special
              Meeting;

        (ii)  apply  for and use  all commercially reasonable  efforts to obtain
              the Interim Order and the Final Order;

        (iii) effect all registrations, filings  and submissions of  information
              required by all governmental entities from the Corporation, any of
              its  Subsidiaries,  New  Hemosol and  the  Blood  Products Limited
              Partnership  as  are  necessary  to  consummate  the  transactions
              contemplated  herein and  in the  Plan of  Arrangement (including,
              without limitation, those listed on Exhibit 10); and

        (iv) apply  for  and  use   all  commercially  reasonable  efforts   (in
             co-operation  with MDS) to  obtain prior to  the Effective Date all
             necessary  waivers,   consents,   authorizations   and   approvals,
             regulatory   or  otherwise,  as  are  required  to  consummate  the
             transactions contemplated  herein and  in the  Plan of  Arrangement
             (including,  without  limitation,  those  listed  on  Exhibit  10),
             without giving rise to any  rights of termination, cancellation  or
             acceleration,  contained in any agreement,  permit or licence which
             is  material  to  the  Corporation   and  its  Subsidiaries  on   a
             consolidated basis.

     (b)  The  Corporation shall promptly  notify MDS in  writing of any matter,
          event or state of facts which comes to its attention which:

        (i)   renders or might reasonably render any representation or  warranty
              of  the Corporation contained in this  Agreement, if made on or as
              of the date of such matter or event or the Effective Date,  untrue
              or inaccurate in any material respect;

        (ii)  constitutes  or  might  reasonably constitute  a  Material Adverse
              Effect in respect of the Corporation;

        (iii) constitutes or might reasonably constitute  or result in a  breach
              by  the Corporation of any covenant or agreement contained in this
              Agreement; or

        (iv) would result  in the  inability  of the  Corporation to  satisfy  a
             condition  or agreement to be satisfied  by it under this Agreement
             prior to the Effective Time.

     (c)  On or prior to the Effective Time, the Corporation shall:

        (i)   file articles  of  incorporation  of New  Hemosol  authorizing  an
              unlimited  number  of New  Hemosol Shares  having the  New Hemosol
              Share Conditions,  cause New  Hemosol to  issue one  share to  the
              Corporation,  and cause the  board of directors  of New Hemosol to
              consist, at MDS' option, of not  less than two directors that  are
              related to MDS;

        (ii)  file the Articles of Arrangement;

                                       D-14


        (iii) obtain  from the Bank, and use its commercially reasonable efforts
              to obtain from each other  secured creditor of the Corporation,  a
              release   of  all   registered  security   interests  against  the
              Corporation and its assets effective the Effective Time;

        (iv) provide MDS with drafts of the Corporation's Tax Returns in respect
             of the year ended  December 31, 2002  and incorporate therein  MDS'
             reasonable comments thereon and file such returns;

        (v)  the Corporation shall, and shall cause Newco and the Blood Products
             Partnership  to, co-operate with MDS  to find the most commercially
             reasonable method for the parties  to purchase insurance to  insure
             the  Corporation for any liability arising from any matters, events
             or circumstances preceding the Effective Time. If it is  determined
             that  the  most  commercially  reasonable  method  to  purchase the
             insurance is to have the Corporation added as an additional insured
             to the  Blood Products  Partnership's  insurance policy,  then  the
             Corporation  shall reimburse the Blood Products Partnership for the
             cost of being added as an additional insured;

        (vi) lend $6,000 to  New Hemosol to  enable it to  purchase its  general
             partnership interest in the Blood Products Limited Partnership;

        (vii) enter  into the Blood  Products LP Agreement,  as an 8.87% limited
              partner and a  91.12% general  partner, and cause  New Hemosol  to
              enter  into the  Blood Products LP  Agreement, as  a 0.01% general
              partner, and execute all documents  and take all such other  steps
              and  cause New Hemosol to execute  all documents and take all such
              other steps  required  for the  formation  of the  Blood  Products
              Limited Partnership;

        (viii) enter  into the  Blood Products  Contribution Agreement  with the
               Blood Products Limited Partnership  and cause the Blood  Products
               Limited Partnership to enter into the Blood Products Contribution
               Agreement and execute all documents and take all such other steps
               required  and  cause the  Blood  Products Limited  Partnership to
               execute all documents and take all such other steps required  for
               (A)  the  transfer  of the  Blood  Products Assets  to  the Blood
               Products Limited  Partnership; (B)  the assumption  by the  Blood
               Products  Limited Partnership of  the Blood Products Liabilities;
               (C) the employment by the  Blood Products Limited Partnership  or
               New  Hemosol  of  the  employees  of  the  Corporation, including
               without limitation, requesting each  employee to consent to  such
               change  in  employment and  to the  treatment  of its  Options as
               contemplated by the Plan of Arrangement and waive, if applicable,
               any rights to severance  or other payments in  the event of  such
               change  or the transactions contemplated herein; (D) the issuance
               by the Blood Products Limited  Partnership to the Corporation  of
               an  8.87%  limited  partnership  and  91.12%  general partnership
               interest, respectively in the Blood Products Limited Partnership;
               and  (E)  the  execution  and  filing  of  tax  elections   under
               subsection  97(2)  of  the  Federal  Tax  Act  or  the  analogous
               provisions  of  any  applicable  provincial  taxing  statute,  in
               respect  of the  Blood Products  Assets transferred  to the Blood
               Products Limited Partnership  with elected amounts  equal to  the
               cost  amount of the particular asset  for purposes of the Federal
               Tax Act, or the  provincial taxing statute, as  the case may  be,
               except  for property which is eligible capital property where the
               elected amount shall be  equal to the fair  market value of  such
               property, as determined by MDS and the Corporation;

        (ix) cause  the  Blood Products  Limited Partnership  to enter  into the
             Blood Products Security  Agreements and to  execute all such  other
             documents  and  take  such  steps required  to  grant  the security
             interests in respect of all of its assets to the Bank in respect of
             the Bank Loan;

        (x)  make such applications or take such other steps as are required  so
             that the New Hemosol Shares, the Class A Common Shares, the Class B
             Non-Voting  Shares and Class C Preferred Shares will not be subject
             to any statutory hold period under applicable Canadian laws (except
             in respect of  "control blocks")  and to  seek relevant  exemptions
             from the prospectus and registration requirements in respect of the
             distributions  of securities contemplated herein and in the Plan of
             Arrangement;

                                       D-15


        (xi) apply to, and  seek confirmation from,  the TSX and  NASDAQ of  the
             delisting  of the  Common Shares  and the  listing and  posting for
             trading or quotation, as the case may be, of the New Hemosol Shares
             on the TSX and the NASDAQ effective as of the Effective Time;

        (xii) amend the Tranche  A Warrants at  the Effective Time  so that  the
              aggregate  number  of  Common  Shares  to  which  MDS  is entitled
              thereunder shall be reduced by  500,000 with such reduction to  be
              effected  by reducing  by 50%  MDS' entitlement  to acquire Common
              Shares which entitlement has vested (or will vest) on February 22,
              2004, March 22, 2004 and April 22, 2004;

        (xiii) redeem all Class C  Preferred Shares held by  New Hemosol at  the
               Effective  Time at their aggregate redemption price and cause New
               Hemosol  to  assume   the  obligations   under  the   Convertible
               Securities, other than Options, as if such Convertible Securities
               were  a  right  to  acquire  New  Hemosol  Shares  (other  than a
               reduction of the  exercise price of  the Convertible Security  by
               $0.04) in exchange for the transfer to New Hemosol at fair market
               value of the Corporation's 91.12% general partnership interest in
               the Blood Products Limited Partnership and $16,000,000;

        (xiv) terminate  the MDS MOU and cause New Hemosol to enter into the New
              Hemosol MOU;

        (xv) cause New Hemosol to enter into the Escrow Agreement;

        (xvi) enter into the Partnership Interest Transfer Agreement; and

        (xvii)  execute all other documents and  take all other steps and  cause
                New  Hemosol  and  the  Blood  Products  Limited  Partnership to
                execute all other documents and take  all other steps as may  be
                required  to  carry  out  the  foregoing  and  the  transactions
                contemplated herein, all such  documents to be  in the form  and
                substance satisfactory to MDS, acting reasonably.

                                   ARTICLE 5
                                      MDS

5.1 COVENANTS OF MDS

     (a)  MDS hereby covenants and agrees to perform all obligations required to
          be  performed by it under this Agreement and to do all such other acts
          and things  as  may be  necessary  in  order to  consummate  and  make
          effective,   as  soon  as  reasonably  practicable,  the  transactions
          contemplated by this Agreement and, without limiting the generality of
          the foregoing, to:

        (i)   effect all registrations, filings  and submissions of  information
              required  by  all  governmental  entities from  MDS  and  the Labs
              Limited  Partnership   as   are  necessary   to   consummate   the
              transactions  contemplated herein  and in the  Plan of Arrangement
              (including,  without  limitation,  those  listed  on  Exhibit   11
              hereto);

        (ii)  apply for and use all reasonable efforts (in co-operation with the
              Corporation)  to obtain prior to  the Effective Date all necessary
              waivers, consents,  authorizations  and approvals,  regulatory  or
              otherwise,   as  are  required   to  consummate  the  transactions
              contemplated herein  and in  the Plan  of Arrangement  (including,
              without limitation, those listed on Exhibit 11 hereto); and

        (iii) vote  the Common Shares  held by it and  cause its Subsidiaries to
              vote the Common Shares held by  them in favour of the  Arrangement
              Resolution.

     (b)  MDS  shall promptly notify  the Corporation in  writing of any matter,
          event or state of facts which comes to its attention which:

        (i)   renders or might reasonably render any representation or  warranty
              of  MDS contained in this Agreement, if  made on or as of the date
              of  such  matter  or  event  or  the  Effective  Date,  untrue  or
              inaccurate in any material respect;

        (ii)  constitutes  or  might  reasonably constitute  a  Material Adverse
              Effect in respect of the Labs Business;

        (iii) constitutes or might reasonably constitute  or result in a  breach
              by  MDS of any covenant or  agreement contained in this Agreement;
              or

                                       D-16


        (iv) would result in  the inability  of MDS  to satisfy  a condition  or
             agreement  to be satisfied by it  under this Agreement prior to the
             Effective Time.

     (c)  MDS shall furnish, on a  timely basis, all such information  regarding
          MDS  and the Labs  Business as may  be required to  be included in the
          Circular under the requirements of Applicable Law. MDS covenants  with
          and  represents and warrants  to the Corporation  that the information
          furnished by it regarding MDS and  the Labs Business for inclusion  in
          the  Circular will  not contain a  misrepresentation (as  such term is
          defined in the Securities Act).

     (d)  On or prior to the Effective Time, MDS shall:

        (i)   lend  Subco  $50,000  to  enable   it  to  purchase  its   general
              partnership interest in the Labs Limited Partnership;

        (ii)  enter into the Labs LP Agreement and cause Subco to enter into the
              Labs  LP Agreement  and execute all  documents and  take all steps
              required for, and cause  Subco to execute  all documents and  take
              all  steps  required  for,  the  formation  of  the  Labs  Limited
              Partnership;

        (iii) enter into the Labs Contribution  Agreement with the Labs  Limited
              Partnership  and cause the Labs  Limited Partnership to enter into
              the Labs Contribution Agreement and execute all such documents and
              take all such other steps required to transfer the Labs Assets  to
              the Labs Limited Partnership;

        (iv) enter into and cause the Labs Limited Partnership to enter into the
             Labs Management Agreement;

        (v)  lend $16,000,000 to the Labs Limited Partnership and cause the Labs
             Limited  Partnership  to lend  $16,000,000  to the  Corporation, in
             accordance  with  the  terms   of  the  Labs  Limited   Partnership
             Agreement;

        (vi) enter into the Partnership Interest Transfer Agreement;

        (vii) subject to the release of MDS under the MDS Guarantee by the Bank,
              enter into a guarantee (the "BPP GUARANTEE") substantially similar
              to  the MDS  Guarantee pursuant  to which  MDS will  guarantee the
              Blood Products  Limited Partnership's  obligation under  the  Bank
              Loan after the Effective Time; and

        (viii) execute  all other documents  and take all  other steps and cause
               Subco and  the  Labs Limited  Partnership  to execute  all  other
               documents  and take all other steps  as required to carry out the
               foregoing  and   the  transactions   contemplated  herein,   such
               documents  to  be  in  form  and  substance  satisfactory  to the
               Corporation, acting reasonably.

                                   ARTICLE 6
                                   CONDITIONS

6.1 MUTUAL CONDITIONS PRECEDENT

     The respective  obligations of  the  Corporation and  MDS to  complete  the
transactions contemplated hereby are subject to the fulfillment of the following
conditions  on or before the  Effective Date or such  other time as is specified
below:

     (a)  the Interim  Order  shall have  been  granted in  form  and  substance
          satisfactory  to the Corporation and MDS, acting reasonably, and shall
          not have  been  set  aside  or  modified in  a  manner  which  is  not
          acceptable to such parties, acting reasonably, on appeal or otherwise;

     (b)  any  conditions in addition to those set out in this Section 6.1 which
          may be imposed by the Interim Order shall have been satisfied;

     (c)  the  Arrangement   Resolution  shall   have  been   approved  by   the
          Securityholders  at the Special Meeting in accordance with the Interim
          Order;

     (d)  the Final  Order  shall  have  been  granted  in  form  and  substance
          satisfactory  to the Corporation and MDS, acting reasonably, and shall
          not have  been  set  aside  or  modified in  a  manner  which  is  not
          acceptable to such parties, acting reasonably, on appeal or otherwise;

                                       D-17


     (e)  all  other consents, orders, authorizations,  approvals and waivers of
          or from  governmental  entities,  including  regulatory  and  judicial
          approvals  and orders, required for the completion of the transactions
          contemplated  herein  shall  have  been  obtained  or  received   from
          applicable   governmental   entities   having   jurisdiction   in  the
          circumstances, and all  other applicable  regulatory requirements  and
          conditions  shall have been complied with including without limitation
          those regulatory requirements and conditions listed in Exhibits 10 and
          11 hereto;

     (f)  all consents, orders, authorizations, approvals and waivers listed  in
          Part  A of Exhibit 10 and in Exhibit  11 (other than as referred to in
          paragraph (e) above) shall have been obtained;

     (g)  there shall  not  be in  force  any  order or  decree  restraining  or
          enjoining the consummation of the transactions contemplated under this
          Agreement  or  under the  Plan of  Arrangement and  there shall  be no
          proceeding,  whether  of  a  judicial  or  administrative  nature   or
          otherwise  brought by a governmental entity that relates to or results
          from the transactions contemplated  herein that would, if  successful,
          result  in an  order or ruling  that would preclude  completion of the
          transactions contemplated under  this Agreement or  under the Plan  of
          Arrangement  in  accordance with  the terms  and conditions  hereof or
          thereof or would  otherwise be inconsistent  with any approvals  which
          have been obtained; and

     (h)  this Agreement shall not have been terminated pursuant to Article 8.

     The  foregoing conditions are for the mutual benefit of the Corporation and
MDS and may be waived, in  whole or in part, by  the Corporation and MDS at  any
time.

6.2 ADDITIONAL CONDITIONS IN FAVOUR OF THE CORPORATION

     The obligation of the Corporation to complete the transactions contemplated
herein is subject to the fulfilment of the following conditions on or before the
Effective Date or such other time as specified below:

     (a)  the representations and warranties made by MDS in this Agreement shall
          be  true and correct in all material respects as of the Effective Date
          as if  made  on  and as  of  such  date (except  to  the  extent  such
          representations  and warranties are qualified by materiality, in which
          event such representations and warranties shall be true and correct in
          all respects and  to the  extent such  representations and  warranties
          speak  as of an earlier date,  in which event such representations and
          warranties shall be true and correct as of such earlier date or except
          as  affected  by  transactions  contemplated  or  permitted  by   this
          Agreement),  and  MDS  shall  have  provided  to  the  Corporation the
          certificate of any one senior officer of MDS certifying such  accuracy
          as at the Effective Date;

     (b)  all  covenants  of MDS  hereunder  to be  performed  on or  before the
          Effective Date shall have been duly  performed by MDS in all  material
          respects   and  MDS  shall  have   provided  to  the  Corporation  the
          certificate of any one senior officer of MDS certifying the  foregoing
          on the Effective Date;

     (c)  subject to the release by the Bank of MDS under the MDS Guarantee, MDS
          shall have entered into the BPP Guarantee;

     (d)  from  the date  hereof up to  and including the  Effective Date, there
          shall not have occurred,  developed or arisen or  come into effect  or
          existence  any condition, event or development which in the reasonable
          judgment of the Corporation  has, or is reasonably  likely to have,  a
          Material Adverse Effect on the Labs Business; and

     (e)  the  satisfaction  of  the Corporation,  acting  reasonably,  that all
          appropriate actions have  been completed  by MDS, Subco  and the  Labs
          Limited  Partnership to carry out the transactions contemplated herein
          including without  limitation those  actions set  out in  Section  5.1
          hereof   and  all  requisite  documents   and  agreements  in  a  form
          satisfactory to the Corporation, acting reasonably, have been executed
          by MDS,  Subco and  the  Labs Limited  Partnership  to carry  out  the
          transactions contemplated herein.

     The  foregoing conditions  precedent are for  the exclusive  benefit of the
Corporation and  may be  waived, in  whole or  in part,  by the  Corporation  in
writing at any time.

                                       D-18


6.3 ADDITIONAL CONDITIONS IN FAVOUR OF MDS

     The  obligation of MDS to complete  the transactions contemplated herein is
subject to the fulfilment of the following conditions on or before the Effective
Date or such other time as specified below:

     (a)  the representations and  warranties made  by the  Corporation in  this
          Agreement shall be true and correct in all material respects as of the
          Effective Date as if made on and as of such date (except to the extent
          such  representations and warranties are  qualified by materiality, in
          which event  such representations  and warranties  shall be  true  and
          correct  in all  respects and to  the extent  such representations and
          warranties  speak  as  of  an  earlier  date,  in  which  event   such
          representations  and warranties shall  be true and  correct as of such
          earlier date or  except as  affected by  transactions contemplated  or
          permitted  by this Agreement), and the Corporation shall have provided
          to MDS the certificate  of any one senior  officer of the  Corporation
          certifying such accuracy as at the Effective Date;

     (b)  all  covenants  of the  Corporation hereunder  to  be performed  on or
          before the  Effective  Date shall  have  been duly  performed  by  the
          Corporation  in all material  respects and the  Corporation shall have
          provided to  MDS the  certificate of  any one  senior officer  of  the
          Corporation certifying the foregoing on the Effective Date;

     (c)  from  the date  hereof up to  and including the  Effective Date, there
          shall not have occurred,  developed or arisen or  come into effect  or
          existence  any condition, event or development which in the reasonable
          judgment of  MDS has,  or is  reasonably likely  to have,  a  Material
          Adverse Effect on the Corporation;

     (d)  the  Corporation shall have  filed Tax Returns in  respect of the year
          ended December 31, 2002 with amendments as appropriate to correct  and
          adjust prior filings;

     (e)  New  Hemosol shall have been incorporated  with the New Hemosol Shares
          having the terms and conditions in the New Hemosol Share Conditions;

     (f)  there shall not be  any change to the  Plan of Arrangement that  would
          result  in  any Convertible  Securities and  Options being  issued and
          outstanding upon completion of the Arrangement;

     (g)  there shall  not be  any change,  condition, event  or development  in
          respect  of the Corporation  or the Business that  would result in any
          material impairment in or materially  adversely affect the ability  of
          the Corporation to utilize its Undeducted Balances after the Effective
          Time as contemplated in the Tax Ruling;

     (h)  MDS  has  obtained any  amendments or  supplements  to the  Tax Ruling
          deemed necessary  by its  counsel or  financial advisors  in order  to
          implement  the Plan of Arrangement and this Agreement and to allow the
          Corporation to  utilize the  Undeducted  Balances of  the  Corporation
          after the Effective Time as contemplated in the Tax Ruling;

     (i)   there  shall  not have  been  enacted, promulgated  or  announced any
           change or proposed change in law or interpretative guidance or policy
           of any  taxation authority  that, in  MDS' view,  acting  reasonably,
           could  result in any  material impairment in  or materially adversely
           affect the Tax Ruling  or the ability of  the Corporation to  utilize
           its  Undeducted Balances after the  Effective Time as contemplated by
           the Tax Ruling  or result  in a material  adverse change  in the  tax
           treatment  on any dividends to be received by MDS as a shareholder of
           the Corporation or otherwise reduce (otherwise than as a  consequence
           of  a  general reduction  in  income tax  rates)  the benefit  to the
           Corporation or  MDS  of  the  Corporation  utilizing  the  Undeducted
           Balances of the Corporation;

     (j)   the  Blood Products  Limited Partnership  and New  Hemosol shall have
           executed  the  Corporation  Indemnity  Agreement  and  MDS  Indemnity
           Agreement, respectively; and

     (k)  the  satisfaction  of  MDS, acting  reasonably,  that  all appropriate
          actions have been completed  by the Corporation,  New Hemosol and  the
          Blood  Products Limited Partnership including without limitation those
          actions set out in Section 4.4 hereof and all requisite documents  and
          agreements in a form satisfactory to MDS, acting reasonably, have been
          executed  and delivered by the Corporation,  New Hemosol and the Blood
          Products  Limited   Partnership   to  carry   out   the   transactions
          contemplated herein.

     The foregoing conditions precedent are for the exclusive benefit of MDS and
may be waived, in whole or in part, by MDS in writing at any time.

                                       D-19


6.4 MERGER OF CONDITIONS

     The  conditions set out in Sections 6.1,  6.2 and 6.3 shall be conclusively
deemed to have been satisfied, waived or released upon the filing of Articles of
Arrangement as  contemplated  by  this  Agreement  with  the  agreement  of  the
Corporation  and MDS and the issuance of a certificate of arrangement in respect
thereof under the OBCA.

                                   ARTICLE 7

                             EXPENSE REIMBURSEMENT

7.1 MDS EXPENSE REIMBURSEMENT

     In the event that:

     (a)  this Agreement is terminated by MDS pursuant to subsections 8.1(c)  or
          8.1(d);

     (b)  this Agreement is terminated by the Corporation pursuant to subsection
          8.1(e), or

     (c)  this  Agreement is  terminated pursuant to  subsection 8.1(f) provided
          that a condition set  out in Section 6.3,  other than a condition  set
          out  in subsection 6.3(c), (f),  (g), (h) or (i),  is not satisfied or
          the condition set out  in subsection 6.1(f) (to  the extent that  such
          condition  relates  to a  consent,  order, authorization,  approval or
          waiver required to be obtained by the Corporation) is not satisfied,

the Corporation shall  pay to  MDS in  respect of  expenses incurred  by MDS  in
connection  with  matters related  to this  Agreement  within two  Business Days
following the termination of  this Agreement, an amount  equal to $1,000,000  in
immediately  available funds  to an account  designated by  MDS. The Corporation
acknowledges that this  amount is a  genuine pre-estimate of  damages which  MDS
will  suffer or incur as a result of any of the foregoing termination events and
are not penalties.  Any obligation to  make a payment  under this section  shall
survive the termination of this Agreement.

7.2 CORPORATION EXPENSE REIMBURSEMENT

     In the event that:

     (a)  this Agreement is terminated by the Corporation pursuant to subsection
          8.1(d);

     (b)  this  Agreement is  terminated pursuant to  subsection 8.1(f) provided
          that a condition set out in Section 6.2 other than a condition set out
          in subsection 6.2(d)  is not  satisfied or  the condition  set out  in
          subsection  6.1(f) (to  the extent  that such  condition relates  to a
          consent, order,  authorization,  approval  or waiver  required  to  be
          obtained by MDS) is not satisfied; or

     (c)  this Agreement is terminated by MDS pursuant to subsection 8.1(h),

MDS  shall  pay  to the  Corporation  in  respect of  expenses  incurred  by the
Corporation in  connection with  matters related  to this  Agreement within  two
Business  Days following the  termination of this Agreement,  an amount equal to
$500,000 in  immediately  available  funds  to  an  account  designated  by  the
Corporation.  MDS acknowledges  that this  amount is  a genuine  pre-estimate of
damages which the Corporation will suffer or incur as a result of the  foregoing
termination events and are not penalties. Any obligation to make a payment under
this section shall survive the termination of this Agreement.

                                   ARTICLE 8
                                  TERMINATION

8.1 TERMINATION

     This Agreement may be terminated at any time prior to the Effective Date:

     (a)  by mutual written consent of the parties hereto;

     (b)  by  MDS or the Corporation, not less than seven days after the Special
          Meeting, if the Securityholders do not vote to approve the Arrangement
          Resolution at the Special Meeting;

     (c)  by MDS if:  (i) the  Board shall  have (A)  modified or  amended in  a
          manner  adverse to MDS or withdrawn, or resolved to modify or amend in
          a manner  adverse to  MDS  or withdraw,  its recommendation  that  the
          Securityholders   approve   the  Arrangement,   or  (B)   approved  or
          recommended

                                       D-20


          any Superior  Proposal; or  (ii) the  Corporation has  entered into  a
          binding agreement with respect to a Superior Proposal;

     (d)  by  MDS or the Corporation  if the other party is  in breach of any of
          its representations or  warranties (in any  material respect or  where
          any  representation or  warranty is  qualified by  materiality, in any
          respect) or in breach of any  covenants under this Agreement and  such
          breach  is not curable, or if curable,  is not cured within three days
          after notice of the breach has been received by such other party;

     (e)  by the Corporation  upon the determination  by the Corporation,  after
          the  conclusion  of  the  process  set out  in  Section  4.3,  that an
          Acquisition Proposal constitutes a Superior Proposal;

     (f)  by MDS or the Corporation if the  Effective Date does not occur on  or
          prior to the Outside Date;

     (g)  by  MDS or the Corporation if  the Arrangement is illegal or otherwise
          prohibited by  law  or  if  any  final  and  non-appealable  judgment,
          injunction,  order or  decree of  a court  or regulatory  authority is
          issued that prohibits MDS or  the Corporation from proceeding with  or
          completing the Arrangement; or

     (h)  by  MDS if the Canada Customs & Revenue Agency has refused to issue an
          amendment or  supplement to  the Tax  Ruling required  to satisfy  the
          condition  in subsection 6.3(h) or there is an enactment, promulgation
          or announcement such that the  condition set out in subsection  6.3(i)
          cannot be satisfied.

     In  the event of any  such termination, subject to  the payment required by
Sections 7.1  and 7.2,  each party  hereto  shall be  deemed to  have  released,
remised  and forever discharged the other party hereto in respect of any and all
claims  arising  in  respect  of  this  Agreement,  provided  that  neither  the
termination  of this Agreement nor anything  contained in this Section 8.1 shall
(i) relieve a party from  any liability for any  wilful breach, fraud or  wilful
misfeasance  by it or  (ii) preclude a  party from seeking  injunctive relief to
restrain any  breach  or threatened  breach  of a  covenant  set forth  in  this
Agreement  or otherwise to  obtain specific performance of  any act, covenant or
agreement set forth in  or contemplated by this  Agreement, provided such  party
does not seek or has not sought an expense reimbursement pursuant to Section 7.1
or 7.2 hereof.

                                   ARTICLE 9
                                   AMENDMENT

9.1 AMENDMENT

     This Agreement may, at any time and from time to time, before and after the
holding  of  the Special  Meeting  but not  later  than the  Effective  Date, be
amended, modified and/or supplemented by written agreement of the parties hereto
(or in the  case of  a waiver,  by written instrument  of the  party giving  the
waiver)  without, subject to Applicable Law,  further notice to or authorization
on the part of Shareholders. Without  limiting the generality of the  foregoing,
any such amendment, modification or supplement may:

     (a)  change  the time for performance of any  of the obligations or acts of
          the parties hereto;

     (b)  waive any  inaccuracies  or  modify  any  representation  or  warranty
          contained herein or in any document to be delivered pursuant hereto;

     (c)  waive  compliance with or modify any of the covenants contained herein
          or in any document to be delivered pursuant hereto; or

     (d)  waive or modify performance  of any of  the obligations or  conditions
          precedent of the parties hereto.

9.2 PUBLIC ANNOUNCEMENTS

     All  press releases or  other public written communications  of any sort by
either of the parties hereto relating  to this Agreement or the Arrangement  and
the  method of release for publication thereof will be provided for prior review
and comment by the other party hereto. Each party will deal expeditiously with a
request for  comments on  such  written communication  provided that  the  party
issuing  such written communication  shall not be  delayed if to  do so would be
contrary to any legal or regulatory requirement.

                                       D-21


                                   ARTICLE 10
                               GENERAL PROVISIONS

10.1 NOTICES

     All notices  and other  communications hereunder  shall be  in writing  and
shall be delivered to the parties at the following addresses or sent by telecopy
at  the following  telecopier numbers or  at such other  addresses or telecopier
numbers as shall be specified by the parties by like notice:

     (a)  if to the Corporation:

        2585 Meadowpine Blvd.
        Mississauga, Ontario
        L5N 8H9

        Attention: Lee Hartwell

        Facsimile No.: 905 286 0021

        with a copy to:

        Davies Ward Phillips & Vineberg LLP
        P.O. Box 63
        Suite 4400
        1 First Canadian Place
        Toronto, Ontario
        M5X 1B1

        Attention: Arthur Shiff
          Facsimile No.: 416 863 0871

     (b)  if to MDS:

        100 International Boulevard
        Toronto, Ontario
        M9W 6J6

        Attention: James A.H. Garner
        Facsimile No.: 416 213 4222

        with a copy to:

        Fasken Martineau DuMoulin LLP
        Suite 4200
        TD Bank Tower
        Toronto Dominion Centre
        Toronto, Ontario
        M5K 1N6

        Attention: Richard J. Steinberg
          Facsimile No.: 416 364 7813

     The date of receipt of  any such notice shall be  deemed to be the date  of
delivery  thereof  or, in  the  case of  notice sent  by  telecopy, the  date of
successful transmission thereof  (unless transmission is  received after  normal
business hours, in which case the date of receipt shall be deemed to be the next
Business Day).

10.2 TERMINATION OF REPRESENTATIONS AND WARRANTIES

     The  representations and warranties  of the parties  contained herein shall
expire with, and be terminated and extinguished upon, the filing of the Articles
of Arrangement under the OBCA to give effect to the Arrangement.

10.3 CONFIDENTIALITY

     Each of MDS and the Corporation  (each a "RECIPIENT") covenants and  agrees
to keep all information provided or made available to it in connection with this
Agreement  and the Plan of Arrangement  (the "INFORMATION") confidential and not
to disclose same (except to its representatives  or as may be required by  law),
in  whole  or in  part, without  the prior  written consent  of the  other party
hereto. Moreover, each Recipient covenants and agrees to

                                       D-22


furnish the Information only  to those of its  representatives who need to  know
the  Information to carry  out the transactions contemplated  herein and who are
informed by such Recipient of the confidential nature of the Information and who
also agree to  be bound by  the terms of  this Section 10.3.  This Section  10.3
shall  be inoperative as  to such portions  of the Information  that: (a) are or
become generally available to the public other than as a result of disclosure by
a Recipient  or its  representatives in  breach of  this Agreement;  (b)  become
available  to a Recipient on  a non-confidential basis from  a source other than
the other party hereto, provided that such source is not known by such Recipient
to be  bound by  a confidentiality  agreement  with the  other party  hereto  or
otherwise  prohibited from transmitting  the Information to  such Recipient by a
contractual, legal or fiduciary obligation; or (c) were known to a Recipient  or
its  representatives on a non-confidential basis prior to its disclosure to such
Recipient or its representatives by the other party hereto.

10.4 APPLICABLE LAW

     This Agreement shall be governed by, and construed in accordance with,  the
laws  of the Province of  Ontario and the laws  of Canada applicable therein and
shall be treated in  all respects as  an Ontario contract.  Each of the  parties
irrevocably attorns to the jurisdiction of the courts of Ontario.

10.5 BINDING EFFECT AND ASSIGNMENT

     This  Agreement and  all the  provisions hereof  shall be  binding upon and
enure to the benefit of the  parties hereto and their respective successors  and
permitted  assigns. Neither  this Agreement nor  any of the  rights hereunder or
under the Arrangement  shall be  assigned by a  party hereto  without the  prior
written consent of the other party.

10.6 TIME OF ESSENCE

     Time shall be of the essence of this Agreement.

10.7 COUNTERPARTS

     This  Agreement may  be executed  in counterparts,  each of  which shall be
deemed an original, but all of which together shall constitute one and the  same
instrument.

10.8 FEES AND EXPENSES

     MDS  and the Corporation shall  each be responsible for  their own fees and
expenses (including, without limitation, the  fees and expenses of their  legal,
financial  and accounting  advisors) in connection  with the entry  into of this
Agreement  and  the  consummation  of  the  transactions  contemplated   herein.
Notwithstanding  the foregoing, provided  the Arrangement is  completed and this
Agreement is not  otherwise terminated prior  to the Effective  Date, MDS  shall
reimburse the Corporation or New Hemosol, as applicable, for 50% of the fees and
expenses  (including without limitation the fees and expenses of legal advisors,
printing expenses and stock exchange and other regulatory fees) incurred by  the
Corporation  or  New  Hemosol  up  to a  maximum  reimbursement  of  $300,000 in
connection with the preparation and mailing of the Circular, the application for
the Interim  Order and  Final Order,  the holding  of the  Special Meeting,  the
preparation  for (to the extent  such preparation is after  the date hereof) and
closing of the transactions contemplated herein.

10.9 FURTHER ASSURANCES

     Notwithstanding that the transactions or events set out herein shall  occur
and  shall be deemed to occur  in the order set out  in this Plan of Arrangement
without any further act or formality, the Corporation and MDS agree to make,  do
and  execute, or cause and cause to be made, done and executed, all such further
acts, deeds, agreements, transfers, assurances, instruments or documents as  may
be  reasonably required by any  of them in order to  document or evidence any of
the transactions or events set out herein.

                                       D-23


     IN WITNESS WHEREOF each of the  parties hereto has executed this  Agreement
as of the date first written above.

                                         HEMOSOL INC.

                                         By: (Signed) LEE D. HARTWELL
                                          --------------------------------------
                                          Name: Lee D. Hartwell
                                          Title: President, Chief Executive
                                                 Officer and
                                             Chief Financial Officer

                                         MDS INC.

                                         By: (Signed) JAMES A.H. GARNER
                                          --------------------------------------
                                          Name: James A.H. Garner
                                          Title: Executive Vice-President and
                                             Chief Financial Officer

                                         By: (Signed) PETER BRENT
                                          --------------------------------------
                                          Name: Peter Brent
                                          Title: General Counsel and Corporate
                                                 Secretary

                                       D-24


                                   EXHIBIT 1

                                  HEMOSOL INC.
                    PLAN OF ARRANGEMENT UNDER SECTION 182 OF
                    THE BUSINESS CORPORATIONS ACT (ONTARIO)

                                   ARTICLE 1
                                 INTERPRETATION

1.1 DEFINITIONS

     In  this Plan  of Arrangement  and the  Appendices hereto,  unless there is
something in the subject matter or context inconsistent therewith, the following
terms shall have the following meanings, respectively:

    "ACT" means the Business  Corporations Act (Ontario), as  now enacted or  as
    the  same may from time  to time be amended,  re-enacted or replaced (and in
    the case  of  such amendment,  re-enactment  or replacement,  any  reference
    herein  shall be read  as referring to such  amended, re-enacted or replaced
    provisions).

    "ARRANGEMENT" means the  arrangement under  section 182  of the  Act on  the
    terms  and conditions set  out in this  Plan of Arrangement,  subject to any
    amendments or  variations  thereto made  in  accordance with  this  Plan  of
    Arrangement.

    "ARRANGEMENT  AGREEMENT" means the arrangement agreement made as of the 11th
    day of February, 2004 between the Corporation and MDS to which this Plan  of
    Arrangement  is attached as Exhibit  1 and forms a  part, and all amendments
    and supplements thereto and restatements thereof.

    "BLOOD PRODUCTS  ASSETS" means  all of  the assets  owned or  leased by  the
    Corporation immediately prior to the Effective Time.

    "BLOOD  PRODUCTS  CONTRIBUTION AGREEMENT"  means the  contribution agreement
    dated the  Effective Date  between the  Corporation and  the Blood  Products
    Limited Partnership pursuant to which the Blood Products Limited Partnership
    will  acquire  the  Blood  Products Assets  and  assume  the  Blood Products
    Liabilities from the Corporation.

    "BLOOD  PRODUCTS  LIABILITIES"   means  all   liabilities  (contingent   and
    otherwise) and other obligations of the Corporation immediately prior to the
    Effective Time.

    "BLOOD   PRODUCTS  LIMITED  PARTNERSHIP"  means   Hemosol  LP,  the  limited
    partnership formed under  the laws  of Ontario  by the  Corporation and  New
    Hemosol  on    --    , 2004 to acquire  the Blood Products Assets and assume
    the Blood Products Liabilities  and otherwise carry on  the business of  the
    Corporation on and after the Effective Time.

    "BLOOD  PRODUCTS LP AGREEMENT" means the limited partnership agreement dated
       --    , 2004 between  the Corporation and New  Hemosol that sets out  the
    terms and conditions of the Blood Products Limited Partnership.

    "BLOOD  PRODUCTS LP  UNIT" means  a partnership  unit of  the Blood Products
    Limited Partnership.

    "BOARD OF DIRECTORS" means  the board of directors  of the Corporation  from
    time to time.

    "BUSINESS  DAY" means a day, other than  Saturday, Sunday, or a statutory or
    civic holiday in Toronto, Canada.

    "CASH FLOW", for any Distribution Period, shall equal the following:

    (i)   all cash or cash equivalents which are received by the Corporation  in
          such   Distribution   Period,  including,   without   limitation,  any
          distributions received by the Corporation from the Partnerships;

    plus:

    (ii)  all cash or cash equivalents received by the Corporation in any  prior
          Distribution  Period to  the extent not  previously distributed unless
          such amounts have been set aside by the Board of Directors in a  prior
          Distribution  Period for  distribution to the  holders of  the Class A
          Common Shares and/or  the Class  B Non-Voting Shares  in a  subsequent
          Distribution Period, in which case such amounts set aside shall not be
          included in Cash Flow;

                                       D-25


    less  the  following amounts  (referred to  collectively  as the  "Cash Flow
    Deductions"):

    (iii) all costs, expenses and debts of the Corporation which, in the opinion
          of the  Board  of Directors,  may  reasonably be  considered  to  have
          accrued  or  become owing  in  respect of,  or  which relate  to, such
          Distribution Period or a prior Distribution Period if not deducted  in
          the calculation of Cash Flow for such prior period;

    (iv) any  tax liability of  the Corporation in respect  of, or which relates
         to, such Distribution Period; and

    (v)  any cash or cash equivalents which  are received by the Corporation  in
         the  Distribution Period which the Board of Directors has determined to
         set aside for distribution to the holders of the Class A Common  Shares
         and/or  the  Class B  Non-Voting  Shares in  a  subsequent Distribution
         Period.

    "CLASS A COMMON SHARES" means shares in the capital of the Corporation of  a
    class  designated as Class A common shares to be created and issued pursuant
    to this Plan of Arrangement and having the attributes as a class set out  in
    the Share Conditions.

    "CLASS  B  NON-VOTING  SHARES"  means  the  shares  in  the  capital  of the
    Corporation of a class designated as Class B non-voting shares to be created
    and issued pursuant to this Plan of Arrangement and having the attributes as
    a class set out in the Share Conditions.

    "CLASS  C  PREFERRED  SHARES"  means  the  shares  in  the  capital  of  the
    Corporation  of a class designated as Class C preferred shares to be created
    and issued pursuant to this Plan of Arrangement and having the attributes as
    a class set out in the Share Conditions.

    "CLASS C REDEMPTION AMOUNT" has the meaning assigned thereto in clause 5.4.1
    of Appendix A.

    "COMMON SHARES"  means  the issued  and  outstanding common  shares  in  the
    capital of the Corporation.

    "CONVERTIBLE  SECURITIES" means all  securities of the  Corporation that are
    convertible or exercisable into  or otherwise give the  holder the right  to
    acquire  Common Shares  or other securities  of the  Corporation, other than
    Options, which are outstanding immediately prior to the Effective Time.

    "CORPORATION" means Hemosol Inc., a corporation incorporated under the  laws
    of Ontario.

    "COURT" means the Ontario Superior Court of Justice.

    "DISTRIBUTABLE CASH FLOW" for, or in respect of, a Distribution Period shall
    be  the Cash Flow of the  Corporation for such Distribution Period, together
    with any Cash Flow set aside in a prior Distribution Period for distribution
    to the holders of the  Class A Common Shares  and/or the Class B  Non-Voting
    Shares  in a subsequent Distribution Period which the Board of Directors has
    determined to distribute in respect of the current Distribution Period, less
    any amount  which the  Board  of Directors  may  reasonably consider  to  be
    necessary  to provide for the  payment of any costs  and repayments of debts
    which have been or will be incurred in the activities and operations of  the
    Corporation in addition to the Cash Flow Deductions.

    "DISTRIBUTION  PERIOD"  means  each month  in  each calendar  year  from and
    including the first day thereof and  to and including the last day  thereof,
    provided that the first Distribution Period shall begin on (and include) the
    Effective  Date and shall end on (and include)  the last day of the month in
    which the Effective Date occurs.

    "EFFECTIVE DATE" means the date upon which this Plan of Arrangement  becomes
    effective  as established by the  date of issue shown  on the certificate of
    arrangement giving effect to the Arrangement issued by the Director pursuant
    to section 183 of the Act.

    "EFFECTIVE TIME" means 12:01 a.m. (Toronto time) on the Effective Date.

    "EXISTING STOCK OPTION PLAN" means the Corporation's stock option plan dated
    December 7, 2000.

    "ESCROW AGREEMENT"  means  the escrow  agreement  dated the  Effective  Date
    between   the  Corporation,  New  Hemosol,  and  an  escrow  agent  mutually
    acceptable to the Corporation and New Hemosol, acting reasonably.

    "FINAL ORDER"  means the  order of  the Court  made in  connection with  the
    approval  of the Arrangement as such order may be amended or modified by the
    highest court which hears an appeal in respect of such order.

    "INITIAL SHARE" means  the one  New Hemosol  Share held  by the  Corporation
    immediately prior to the Effective Time.

                                       D-26


    "INTERIM  ORDER" means the interim order of the Court, as it may be amended,
    made in connection with  the Arrangement as contemplated  by section 2.2  of
    the Arrangement Agreement.

    "LABS ASSETS" means the assets of the Labs Business that will be contributed
    to  the Labs Limited  Partnership by MDS  pursuant to the  terms of the Labs
    Contribution Agreement.

    "LABS BUSINESS" means the clinical  laboratory services business carried  on
    by MDS in Ontario immediately prior to the Effective Time which, for greater
    certainty,  does not include diagnostic  imaging, water testing, real estate
    investments, the Executive Health Clinic, MDS' joint venture with University
    Health Network  called  Toronto  Medical  Laboratories  and  MDS'  financial
    interest in Windsor Medical Laboratories.

    "LABS  CONTRIBUTION AGREEMENT"  means the  contribution agreement  dated the
    Effective Date  between MDS  and the  Labs Limited  Partnership pursuant  to
    which MDS will contribute the Labs Assets to the Labs Limited Partnership.

    "LABS  LIMITED PARTNERSHIP" means  MDS Laboratory Services,  L.P., a limited
    partnership formed by MDS and Subco under the laws  of Ontario on    --    ,
    2004  to acquire the Labs Assets and carry on the Labs Business on and after
    the Effective Time.

    "LABS LIMITED  PARTNERSHIP INTEREST"  means the  99.99% limited  partnership
    interest in the Labs Limited Partnership.

    "LABS  LP AGREEMENT" means the limited partnership agreement dated    --   ,
    2004 between MDS and  Subco that sets  out the terms  and conditions of  the
    Labs Limited Partnership.

    "LABS  LP  UNIT"  means  a  limited partnership  unit  of  the  Labs Limited
    Partnership.

    "MDS" means MDS Inc., a corporation governed by the laws of Canada.

    "MEETING" means  the  special  meeting  of  holders  of  Common  Shares  and
    Convertible  Securities and  any adjournment(s)  or postponement(s) thereof,
    called and held  in accordance  with the  Interim Order  to consider,  among
    other things, a special resolution in respect of the Arrangement.

    "MOU"  means the memorandum of understanding between MDS and the Corporation
    dated October 22,  2002, as  amended on December  23, 2003  relating to  the
    issuance of Tranche B Warrants in certain circumstances.

    "NEW  HEMOSOL" means Hemosol Corp., a corporation incorporated under the Act
    on February 24, 2004 and which immediately prior to the Effective Time is  a
    wholly-owned subsidiary of the Corporation.

    "NEW  HEMOSOL MOU" means the memorandum of understanding between MDS and New
    Hemosol dated the  Effective Date relating  to the issuance  of warrants  to
    purchase  up to 2,000,000 New Hemosol Shares on substantially the same terms
    as the Tranche B  Warrants except that the  number of warrants vesting  each
    month  shall be reduced  by 50% and  the exercise price  shall be reduced by
    $0.04.

    "NEW HEMOSOL OPTIONS"  means options  to acquire New  Hemosol Shares  issued
    under the New Hemosol Stock Option Plan.

    "NEW HEMOSOL SHARE" means a common share in the capital of New Hemosol.

    "NEW  HEMOSOL STOCK OPTION PLAN" means the employee stock option plan of New
    Hemosol dated the Effective Date.

    "OPTION" means an option to purchase Common Shares issued by the Corporation
    pursuant to  the  Existing  Stock  Option  Plan  and  which  is  outstanding
    immediately prior to the Effective Time.

    "PARTNERSHIP INTEREST TRANSFER AGREEMENT" means the transfer agreement dated
    the  Effective Date  between MDS and  the Corporation pursuant  to which MDS
    will transfer the Labs Limited  Partnership Interest to the Corporation  and
    surrender  for  cancellation 500,000  Tranche A  Warrants  and the  right to
    acquire 2,000,000 Tranche B Warrants and the Corporation shall issue to  MDS
       --   Class A Common Shares and    --   Class B Non-Voting Shares and will
    grant  a right of  first refusal and  option in respect  of the Labs Limited
    Partnership Interest to MDS.

    "PARTNERSHIP  INTERESTS"  means,   collectively,  the  limited   partnership
    interests in each of the Partnerships acquired by the Corporation as part of
    the Arrangement.

                                       D-27


    "PARTNERSHIPS"  means, collectively, the  Blood Products Limited Partnership
    and the Labs Limited Partnership.

    "PERSON" includes an individual, body corporate, partnership, joint venture,
    trust,  association,  unincorporated  organisation,  or  any  other   entity
    recognised by law or considered to be a person for purposes of the Tax Act.

    "PLAN   OF  ARRANGEMENT"  means   this  plan  of   arrangement  as  amended,
    supplemented or restated  from time  to time, together  with the  Appendices
    hereto.

    "SHARE  CONDITIONS" means conditions  of the Class A  Common Shares, Class B
    Non-Voting Shares and  Class C  Preferred Shares as  set out  in Appendix  A
    hereto.

    "SPECIFIED  OPTIONS"  means  collectively  (i)  2,766,225  Options  with  an
    exercise price  of  $0.90  per  Common Share  issued  on  October  29,  2003
    conditional  upon TSX and shareholder approval; (ii) 775,000 Options with an
    exercise price  of  $1.60 per  Common  Share  issued on  December  11,  2003
    conditional  upon TSX and shareholder approval;  (iii) 5,613 Options with an
    exercise price  of $0.93  per Common  Share  issued on  June 3,  2003;  (iv)
    164,000  Options with an exercise price of  $2.10 per Common Share issued on
    February 10, 1998, of which 124,000  are outstanding as of the date  hereof;
    (v)  30,000 Options with an exercise price  of $2.26 per Common Share issued
    on December 17, 2002;  (vi) 36,000 Options with  an exercise price of  $2.45
    per  Common Share  issued on  April 30, 1998;  (vii) 30,000  Options with an
    exercise price of $2.45 per Common Share issued on April 30, 1998, of  which
    17,500  are outstanding as of the date hereof; (viii) 10,000 Options with an
    exercise price of $3.85 per Common  Share issued on February 11, 1997;  (ix)
    34,240  Options with an exercise  price of $4.60 per  Common Share issued on
    May 21, 1999; (x) 10,480 Options with an exercise price of $4.60 per  Common
    Share  issued on May 21, 1999; (xi) 30,000 Options with an exercise price of
    $6.30 per Common  Share issued on  December 13, 2001;  (xii) 24,057  Options
    with an exercise price of $6.63 per Common Share issued on February 8, 1996;
    (xiii)  10,431 Options  with an  exercise price  of $15.10  per Common Share
    issued on February 9,  2000; (xiv) 4,104 Options  with an exercise price  of
    $15.10 per Common Share issued on February 9, 2000; (xv) 37,705 Options with
    an  exercise price of  $15.25 per Common  Share issued on  December 7, 2000;
    (xvi) 10,000  Options with  an exercise  price of  $15.25 per  Common  Share
    issued  on December 7, 2000; (xvii) 3,832  Options with an exercise price of
    $15.25 per  Common Share  issued  on December  7,  2000; and  (xviii)  2,500
    Options with an exercise price of $15.25 per Common Share issued on December
    7, 2000.

    "SUBCO" means MDS Laboratory Services Inc., a wholly-owned subsidiary of MDS
    incorporated  under  the Canada  Business Corporations  Act on  December 19,
    2003.

    "TAX ACT" means the Income Tax Act  (Canada), as now enacted or as the  same
    may from time to time be amended, re-enacted or replaced (and in the case of
    such  amendment, re-enactment or replacement,  any reference herein shall be
    read as referring to such amended, re-enacted or replaced provisions).

    "TRADING DAY" means a day, other than a Saturday or Sunday, when the Toronto
    Stock Exchange and the Nasdaq National Market are open for trading.

    "TRANCHE A WARRANTS"  means the warrants  of the Corporation  issued to  MDS
    entitling  MDS  to acquire,  on the  due exercise  thereof, up  to 6,000,000
    Common  Shares,  on  the  terms  and  conditions  set  out  in  the  warrant
    certificate dated November 22, 2002.

    "TRANCHE  B WARRANTS"  means warrants of  the Corporation to  purchase up to
    4,000,000 Common Shares to be issued to MDS in certain circumstances on  the
    terms and conditions set out in the MOU.

1.2 INTERPRETATION NOT AFFECTED BY HEADINGS, ETC.

     The  division of this Plan of Arrangement into articles, sections and other
portions and the insertion of headings are for convenience of reference only and
shall not affect the construction or interpretation of this Plan of Arrangement.

1.3 NUMBER, GENDER

     Unless the subject matter or context requires the contrary, words importing
the singular  number only  shall include  the plural  and vice  versa and  words
importing the use of any gender shall include all genders.

                                       D-28


1.4 CURRENCY

     All sums of money referred to in this Plan of Arrangement are expressed and
shall be payable in Canadian dollars.

1.5 TIME

     Time  shall be  of the  essence in  each and  every matter  or thing herein
provided. Unless otherwise indicated, all times expressed herein are local  time
at Toronto, Ontario.

1.6 GOVERNING LAW

     This  Plan of Arrangement shall be  governed by and construed in accordance
with the  laws  of the  Province  of Ontario  and  the federal  laws  of  Canada
applicable therein.

1.7 THE ARRANGEMENT AGREEMENT

     The  Arrangement is made pursuant  to and subject to  the provisions of the
Arrangement Agreement.  The  implementation  of  this  Plan  of  Arrangement  is
expressly  subject to the fulfilment  or waiver by the  party or parties thereto
entitled of the conditions precedent set out in the Arrangement Agreement.

                                   ARTICLE 2
                                THE ARRANGEMENT

2.1 THE ARRANGEMENT

     At the Effective  Time, the following  shall occur and  shall be deemed  to
have occurred in the following order without any further act or formality:

     (a)  Subco shall contribute $50,000 to the Labs Limited Partnership for its
          0.01%  general partnership  interest in  the Labs  Limited Partnership
          pursuant to the terms of the Labs LP Agreement;

     (b)  in accordance with the terms  of the Labs Contribution Agreement,  MDS
          shall  contribute the Labs Assets to  the Labs Limited Partnership and
          the Labs Limited Partnership shall issue the Labs Limited  Partnership
          Interest to MDS in consideration therefor;

     (c)  New  Hemosol  shall contribute  $6,000 to  the Blood  Products Limited
          Partnership and the Blood Products Limited Partnership shall issue one
          Blood Products LP Unit to New Hemosol in consideration therefor;

     (d)  in accordance  with the  Blood  Products Contribution  Agreement,  the
          Corporation  shall contribute the  Blood Products Assets  to the Blood
          Products Limited Partnership and, in consideration therefor, the Blood
          Products  Limited  Partnership   shall  assume   the  Blood   Products
          Liabilities   and  issue  9,999   Blood  Products  LP   Units  to  the
          Corporation;

     (e)  all Options shall be cancelled and  shall cease to be outstanding  and
          (i)  all holders  of Options  who have  consented to  the treatment of
          their Options  as contemplated  in this  clause (i)  shall receive  in
          exchange  for  each  of  such  cancelled  Options  that  are Specified
          Options, one  New  Hemosol  Option with  vesting  and  exercise  terms
          equivalent  to such cancelled Specified  Options and an exercise price
          equal to the exercise  price of such  cancelled Specified Option  less
          $0.04  and shall receive no New  Hemosol Options in exchange for their
          cancelled Options that are not Specified Options; and (ii) all holders
          of Options who have not consented to the treatment of their Options as
          contemplated in the preceding  clause (i) and  all holders of  Options
          who  do not hold  any Specified Options shall  receive in exchange for
          each of such cancelled  Options, one New  Hemosol Option with  vesting
          and exercise terms equivalent to such cancelled Option and an exercise
          price equal to the exercise price of such cancelled Option less $0.04;

     (f)  the  articles  of  the  Corporation shall  be  amended  to  create and
          authorize the issuance of an unlimited number of Class A Common Shares
          and Class B  Non-Voting Shares and  that number of  Class C  Preferred
          Shares  equal to the number of issued and outstanding Common Shares of
          the Corporation immediately prior to  the Effective Time in each  case
          having  the rights, privileges, restrictions  and conditions set forth
          in the Share Conditions;

     (g)  the Initial Share shall be  purchased for cancellation by New  Hemosol
          from the Corporation in consideration for a cash payment of $1.00;

                                       D-29


     (h)  each  holder of Common  Shares shall be deemed  to have exchanged each
          issued and outstanding Common Share for  one Class A Common Share  and
          one  Class  C Preferred  Share  and each  such  Common Share  shall be
          cancelled such that  upon the  completion of the  foregoing no  Common
          Shares shall be outstanding;

     (i)   the  amount to be added to  the stated capital account maintained for
           the Class C  Preferred Shares in  respect of each  Class C  Preferred
           Share shall be equal to the Class C Redemption Amount;

     (j)   the  amount to be added to  the stated capital account maintained for
           the Class A Common Shares shall be equal to the fair market value  of
           the Common Shares immediately prior to the Effective Time (determined
           by  multiplying the  number of Common  Shares outstanding immediately
           before the Effective Time  by the weighted  average trading price  of
           the  Common Shares for the 10-day period ending on the day before the
           Effective Date) and subject to  any reduction required by  subsection
           86(2.1) of the Tax Act less the aggregate Class C Redemption Amount;

     (k)  the  stated capital account maintained in respect of the Common Shares
          shall be decreased to zero;

     (l)   each holder  of Class  C Preferred  Shares shall  be deemed  to  have
           transferred  each issued and  outstanding Class C  Preferred Share to
           New Hemosol in exchange for one New Hemosol Share such that following
           such transfer all issued and outstanding Class C Preferred Shares are
           held by New Hemosol;

     (m) the Tranche A Warrants shall  be amended, in partial consideration  for
         the  issuance of Class A Common Shares and Class B Non-Voting Shares as
         provided in  paragraph (q),  so  that the  aggregate number  of  Common
         Shares  to which MDS is entitled thereunder shall be reduced by 500,000
         with such reduction to be effected by reducing by 50% MDS'  entitlement
         to acquire Common Shares which entitlement has vested (or will vest) on
         February 22, 2004, March 22, 2004 and April 22, 2004;

     (n)  New  Hemosol shall assume the obligations of the Corporation under the
          Convertible Securities as if such Convertible Securities were a  right
          to  acquire New Hemosol Shares (other than a reduction of the exercise
          price of each Convertible Security by $0.04) and the Corporation shall
          redeem all issued and outstanding Class C Preferred Shares held by New
          Hemosol for a redemption  price per Class C  Preferred Share equal  to
          the  Class C Redemption Amount  which consideration for the assumption
          and the redemption price shall be paid by the transfer to New  Hemosol
          of 9,112 Blood Products LP Units and the cash payment of $16,000,000;

     (o)  the  MOU shall be terminated and New  Hemosol and MDS shall enter into
          the New Hemosol MOU in partial  consideration for the issuance by  the
          Corporation  of Class A Common Shares and Class B Non-Voting Shares as
          provided in paragraph (q);

     (p)  New Hemosol shall  subscribe for  2,500 additional  Blood Products  LP
          Units  in consideration for  a subscription price  of $15,000,000 such
          that following such subscription New  Hemosol shall hold 11,613  Blood
          Products LP Units and the Corporation shall hold 887 Blood Products LP
          Units;

     (q)  the  Corporation shall issue to MDS     --   Class A Common Shares and
              --     Class B  Non-Voting Shares  in consideration  for the  Labs
          Limited  Partnership Interest transferred from  MDS in accordance with
          the terms  of  the Partnership  Interest  Transfer Agreement  and  the
          surrender  to the  Corporation of 500,000  Tranche A  Warrants and the
          surrender to the Corporation of the right to acquire 2,000,000 Tranche
          B Warrants;

     (r)  the amount to be added to the stated capital account maintained by the
          Corporation for the Class A Common  Shares and the Class B  Non-Voting
          Shares  in respect of the  shares issued in (p)  shall be equal to the
          value of the consideration  received for the  issuance of such  shares
          less the deduction required by subsection 85(2.1) of the Tax Act;

     (s)  the articles of the Corporation shall be amended to change the name of
          the  Corporation to "    --   ", to  delete the provisions relating to
          registered office, number of  directors, authorized share capital  and
          share  conditions of the  Common Shares and the  special shares of the
          Corporation and to add the provisions  set out in Appendix A  relating
          to   registered  office,  number   of  directors,  corporate  objects,
          authorized capital and share conditions;

     (t)  the board  of  directors of  the  Corporation  shall consist  of    --
          members, initially being    --   ; and

     (u)  the year-end of the Corporation shall be October 31.

                                       D-30


                                   ARTICLE 3
                                  CERTIFICATES

3.1 COMMON SHARE CERTIFICATES

     On  and after the Effective  Time until the close  of business on the fifth
Trading Day  following the  Effective Date,  certificates formerly  representing
Common  Shares shall  represent and  be deemed  to represent  only the  right to
receive New Hemosol  Shares and Class  A Common Shares  in accordance with  this
Plan  of Arrangement. Following the  close of business on  the fifth Trading Day
following the Effective Date, such certificates shall cease to represent a claim
or interest of  any kind or  nature, including  a claim for  dividends or  other
distributions, against the Corporation or New Hemosol.

3.2 NEW SHARE CERTIFICATES

     As  soon as practicable,  certificates representing New  Hemosol Shares and
Class A Common Shares shall be mailed to those persons whose names appear on the
register of holders  of Common  Shares at  the close  of business  on the  fifth
Trading Day following the Effective Date.

3.3 OPTIONS AND CONVERTIBLE SECURITY AGREEMENTS

     On  and  after the  Effective Time,  (a) the  agreements providing  for the
Options shall represent  only the right  to receive the  New Hemosol Options  to
which  the  holders  thereof are  entitled  under  the Arrangement  and  (b) the
agreements providing for  the Convertible  Securities shall  represent only  the
right to exercise into New Hemosol Shares as contemplated under the Arrangement.

                                   ARTICLE 4
                                   AMENDMENTS

4.1 AMENDMENTS

     The   parties  to  the  Arrangement  Agreement  may  amend,  modify  and/or
supplement this Plan of Arrangement at any  time and from time to time prior  to
the  Effective  Time, provided  that  each such  amendment,  modification and/or
supplement must be: (i) set  out in writing; (ii) filed  with the Court and,  if
made  following the  Meeting, approved by  the Court; and  (iii) communicated to
holders of Common Shares if and as required by the Court.

4.2 APPROVAL AT MEETING

     Any amendment, modification or supplement  to this Plan of Arrangement  may
be  proposed by the parties to the Arrangement Agreement at any time prior to or
at the Meeting with or without any  other prior notice or communication, and  if
so proposed and accepted by the persons voting at the Meeting (other than as may
be  required  under  the Interim  Order),  shall  become part  of  this  Plan of
Arrangement for all purposes.

4.3 AFTER EFFECTIVE TIME

     Any amendment, modification or supplement  to this Plan of Arrangement  may
be  made  following the  Effective Time  but shall  only be  effective if  it is
consented to  by  each of  the  parties to  the  Arrangement Agreement  and  New
Hemosol,  provided that it concerns a matter which, in the reasonable opinion of
the parties to the Arrangement Agreement and New Hemosol is of an administrative
nature required to  better give  effect to the  implementation of  this Plan  of
Arrangement  and is not  adverse to the  financial or economic  interests of the
parties to the Arrangement Agreement, New Hemosol or any former holder of Common
Shares or Options.

                                       D-31


                                   APPENDIX A

                                   ARTICLE 1
                               REGISTERED OFFICE

1.1   The registered office of the  Corporation is 100 International  Boulevard,
      Toronto, Ontario M9W 6J6.

                                   ARTICLE 2
                                   DIRECTORS

2.1   The  number of directors of the Corporation shall be a minimum of four and
      a maximum of six.

                                   ARTICLE 3
                               CORPORATE OBJECTS

3.1   RESTRICTIONS ON BUSINESS

     The Corporation is a limited  purpose corporation whose objective shall  be
to  maximize Distributable Cash Flow through  the Partnership Interests (and any
property and/or  assets that  are acquired  or received  by the  Corporation  in
accordance  with Subsection 3.1(b)(i)) and  to distribute all Distributable Cash
Flow to holders of the Class A Common Shares and Class B Non-Voting Shares  and,
in connection therewith, the Corporation:

     (a)  shall,  at  the  end  of  each  Distribution  Period,  distribute  all
          Distributable Cash Flow to  holders of its Class  A Common Shares  and
          Class  B Non-Voting Shares by way of dividends or other distributions,
          subject to the other  provisions of these  articles and to  applicable
          law; and

     (b)  shall  not, directly or indirectly, carry on any business, purchase or
          otherwise acquire or sell, transfer or otherwise dispose of any assets
          or exercise any powers other than:

        (i)   holding the Partnership Interests and not selling, transferring or
              otherwise disposing  of  all or  any  part of  either  Partnership
              Interest  except (A) in accordance with  a sale, transfer or other
              disposition carried out pursuant to  the terms of the  partnership
              agreement  governing  the  applicable Partnership  or  (B)  on the
              liquidation, dissolution or wind-up of the applicable Partnership,
              in which  case  the Corporation  shall  hold the  property  and/or
              assets  that  are acquired  or received  by  the Corporation  as a
              result of  such  sale,  transfer  or  other  disposition  or  such
              liquidation,  dissolution  or  wind-up and  shall  deal  with such
              property  and/or  assets  as  the  Board  of  Directors  considers
              appropriate in the ordinary course of the Corporation's business;

        (ii)  performing  its obligations  and exercising  its rights  under any
              agreements entered into by the Corporation in connection with  the
              Arrangement   and  any  other  agreements   entered  into  by  the
              Corporation in the ordinary course of the Corporation's business;

        (iii) issuing shares  (or rights,  warrants, convertible  securities  or
              options  to  acquire shares)  for valuable  consideration provided
              that (A) any  such issuance is  consistent with the  Corporation's
              articles,  and (B) no Class A  Common Shares (or rights, warrants,
              convertible securities  or  options  to  acquire  Class  A  Common
              Shares)  may be issued except in connection with a stock dividend,
              a stock split or similar event that affects all holdings of  Class
              A Common Shares in the same manner, on a per share basis;

        (iv) borrowing  money upon the  credit of the  Corporation, and granting
             security therefor,  in the  ordinary  course of  the  Corporation's
             business;

        (v)  temporarily  holding cash in  interest bearing accounts, short-term
             government debt or short-term  investment grade corporate debt  for
             the  purposes  of paying  the expenses  of the  Corporation, making
             dividends or other distributions to shareholders of the Corporation
             and carrying out any other activities in the ordinary course of the
             Corporation's business;

        (vi) satisfying the  obligations,  liabilities or  indebtedness  of  the
             Corporation; and

        (vii) engaging  in  any  acts  or  exercising  any  powers  necessary or
              desirable to carry  out the ordinary  course of the  Corporation's
              business, including as provided in the articles and by-laws of the
              Corporation.

                                       D-32


3.2   AMENDMENTS TO RESTRICTIONS ON BUSINESS

     In  addition  to any  other approvals  required by  the Act,  the foregoing
restrictions and  limitations may  only be  amended, supplemented,  repealed  or
otherwise modified by resolution passed by the affirmative vote of at least two-
thirds  of the  votes cast  at a  meeting of  the holders  of each  class of the
Corporation's  issued  and  outstanding  Class  A  Common  Shares  and  Class  B
Non-Voting  Shares,  each voting  separately as  a class,  duly called  for that
purpose. The formalities to be  observed in respect of  the giving of notice  of
any such meeting or any adjourned meeting and the conduct thereof shall be those
from  time to  time required  by the Act  and prescribed  in the  by-laws of the
Corporation with respect to meetings of shareholders.

                                   ARTICLE 4
                            AUTHORIZED SHARE CAPITAL

4.1   The Corporation is authorized to issue (i) an unlimited number of Class  A
      Common  Shares, (ii) an unlimited number of Class B Non-Voting Shares, and
      (iii)    --   Class C  Preferred Shares, as such number may be reduced  in
      accordance with Section 5.4.6 hereof.

     In  addition to  any other approvals  required by the  Act, the Corporation
shall not create any shares ranking in priority to or on a parity with the Class
A Common Shares or the Class B  Non-Voting Shares without the prior approval  of
the  holders of each class  of the Corporation's shares  by resolution passed by
the affirmative vote of at  least two-thirds of the votes  cast at a meeting  of
the  holders of each  class of the Corporation's  issued and outstanding shares,
voting separately as a class, duly  called for that purpose. The formalities  to
be  observed in  respect of  the giving  of notice  of any  such meeting  or any
adjourned meeting  and the  conduct thereof  shall be  those from  time to  time
required  by  the Act  and prescribed  in  the by-laws  of the  Corporation with
respect to meetings of shareholders.

                                   ARTICLE 5
                                SHARE CONDITIONS

5.1   PROVISIONS ATTACHING TO THE CLASS A COMMON SHARES

     The Class A Common Shares shall have attached thereto the following rights,
privileges, restrictions and conditions:

5.1.1 DIVIDENDS

     Subject to the prior rights of the holders of the Class C Preferred  Shares
and any other shares ranking senior to the Class A Common Shares and the Class B
Non-Voting  Shares with  respect to  priority in  the payment  of dividends, the
holders of Class A Common  Shares and the holders  of Class B Non-Voting  Shares
shall  be entitled to receive dividends  and the Corporation shall pay dividends
thereon, as  and when  declared by  the  Board of  Directors (provided  that  no
dividends   shall  be  declared  on  or  prior  to  October  31,  2004)  out  of
Distributable Cash  Flow, in  such  amount and  in such  form  as the  Board  of
Directors  may from time to time determine  and all dividends which the Board of
Directors may declare on the  Class A Common Shares  and the Class B  Non-Voting
Shares  shall be  declared and paid  in equal amounts  per share on  all Class A
Common Shares and  Class B  Non-Voting Shares  at the  time outstanding  without
preference  or distinction; provided that dividends  may be declared and paid on
the Class B Non-Voting Shares in advance  of dividends declared and paid on  the
Class A Common Shares so long as the aggregate amount per share of all dividends
declared  and  paid on  the Class  A Common  Shares  in any  fiscal year  of the
Corporation equals (without regard to the  timing of payment of such  dividends)
the aggregate amount per share of all dividends declared and paid on the Class B
Non-Voting  Shares in such fiscal year  of the Corporation. Such dividends shall
be paid  by cheques  of the  Corporation payable  at par  at any  branch of  the
Corporation's  bankers for the  time being in  Canada issued in  respect of such
dividends or in such other manner as is required by the Corporation's bankers or
as required by law (less any tax required to be withheld by the Corporation) and
payment thereof shall satisfy such dividends. Dividends which are represented by
a cheque which has not been  presented to the Corporation's bankers for  payment
or  that otherwise remain unclaimed  for a period of six  years from the date on
which they were declared to be payable shall be forfeited to the Corporation.

                                       D-33


5.1.2 DISSOLUTION

     In  the  event  of  the  dissolution,  liquidation  or  winding-up  of  the
Corporation,  whether  voluntary or  involuntary, or  any other  distribution of
assets of the Corporation among its  shareholders for the purpose of  winding-up
its affairs, subject to the prior rights of the holders of the Class C Preferred
Shares  and any  other shares ranking  senior to  the Class A  Common Shares and
Class B Non-Voting Shares with respect to priority in the distribution of assets
upon dissolution, liquidation,  winding-up or  distribution for  the purpose  of
winding-up,  the holders  of the Class  A Common  Shares and the  holders of the
Class B Non-Voting Shares  shall be entitled to  receive the remaining  property
and  assets of the Corporation in equal  amounts per share without preference or
distinction.

5.1.3 VOTING RIGHTS

     Subject to Section 5.8, the holders of  the Class A Common Shares shall  be
entitled  to receive notice of and to attend all meetings of the shareholders of
the Corporation and shall have  one vote for each Class  A Common Share held  at
all  meetings of the  shareholders of the Corporation,  except meetings at which
only holders of another specified class  or series of shares of the  Corporation
are entitled to vote separately as a class or series.

5.2   PROVISIONS ATTACHING TO THE CLASS B NON-VOTING SHARES

     The  Class B  Non-Voting Shares shall  have attached  thereto the following
rights, privileges, restrictions and conditions:

5.2.1 DIVIDENDS

     Subject to the prior rights of the holders of the Class C Preferred  Shares
and  any other shares  ranking senior to  the Class B  Non-Voting Shares and the
Class A Common Shares with respect to priority in the payment of dividends,  the
holders  of Class B Non-Voting  Shares and the holders  of Class A Common Shares
shall be entitled to receive dividends  and the Corporation shall pay  dividends
thereon,  as  and when  declared by  the  Board of  Directors (provided  that no
dividends  shall  be  declared  on  or  prior  to  October  31,  2004)  out   of
Distributable  Cash  Flow, in  such  amount and  in such  form  as the  Board of
Directors may from time to time determine  and all dividends which the Board  of
Directors  may declare on the  Class B Non-Voting Shares  and the Class A Common
Shares shall be  declared and paid  in equal amounts  per share on  all Class  B
Non-Voting  Shares and  Class A  Common Shares  at the  time outstanding without
preference or distinction; provided that dividends  may be declared and paid  on
the  Class B Non-Voting Shares in advance  of dividends declared and paid on the
Class A Common Shares so long as the aggregate amount per share of all dividends
declared and  paid on  the Class  A  Common Shares  in any  fiscal year  of  the
Corporation  equals (without regard to the  timing of payment of such dividends)
the aggregate amount per share of all dividends declared and paid on the Class B
Non-Voting Shares in such fiscal year  of the Corporation. Such dividends  shall
be  paid by  cheques of  the Corporation  payable at  par at  any branch  of the
Corporation's bankers for  the time being  in Canada issued  in respect of  such
dividends or in such other manner as is required by the Corporation's bankers or
as required by law (less any tax required to be withheld by the Corporation) and
payment thereof shall satisfy such dividends.

     Dividends which are represented by a cheque which has not been presented to
the  Corporation's bankers for payment or  that otherwise remain unclaimed for a
period of six  years from the  date on which  they were declared  to be  payable
shall be forfeited to the Corporation.

5.2.2 DISSOLUTION

     In  the  event  of  the  dissolution,  liquidation  or  winding-up  of  the
Corporation, whether  voluntary or  involuntary, or  any other  distribution  of
assets  of the Corporation among its  shareholders for the purpose of winding-up
its affairs, subject to the prior rights of the holders of the Class C Preferred
Shares and any other shares ranking senior to the Class B Non-Voting Shares  and
the Class A Common Shares with respect to priority in the distribution of assets
upon  dissolution, liquidation,  winding-up or  distribution for  the purpose of
winding-up, the holders of the Class B Non-Voting Shares and the holders of  the
Class  A Common Shares shall  be entitled to receive  the remaining property and
assets of  the Corporation  in equal  amounts per  share without  preference  or
distinction.

5.2.3 VOTING RIGHTS

     Subject  to applicable law and any other  provisions of the articles of the
Corporation, the holders of the Class B Non-Voting Shares shall not be  entitled
to  receive  notice  of,  nor  to  attend  nor  vote  at  any  meetings  of  the

                                       D-34


shareholders of the Corporation; provided that in the event that holders of  the
Class B Non-Voting Shares are entitled by law or the articles of the Corporation
to  vote at a  meeting of holders of  Class B Non-Voting  Shares, the holders of
Class B Non-Voting Shares shall have one vote for each Class B Non-Voting  Share
held.

5.3   PROVISIONS ATTACHING TO THE CLASS C PREFERRED SHARES

     The  Class C  Preferred Shares  shall have  attached thereto  the following
rights, privileges, restrictions and conditions:

5.3.1 DIVIDENDS

5.3.2 The holders of the Class  C Preferred Shares, in  priority to the Class  A
      Common  Shares  and the  Class B  Non-Voting Shares  and any  other shares
      ranking junior  to the  Class C  Preferred Shares,  shall be  entitled  to
      receive and the Corporation shall pay thereon, as and when declared by the
      Board  of  Directors  out  of  the  moneys  of  the  Corporation  properly
      applicable to the payment of dividends, fixed preferential cumulative cash
      dividends at  the rate  of 0.25%  of  the Class  C Redemption  Amount  (as
      defined  below) per month  payable monthly within  ten days of  the end of
      each month in each year. Dividends  on the Class C Preferred Shares  shall
      accrue  from, but not  including, the date  of issue of  such shares. Such
      dividends shall be paid  by cheques of the  Corporation payable at par  at
      any  branch  of the  Corporation's bankers  for the  time being  in Canada
      issued in respect of such dividends or in such other manner as is required
      by the Corporation's bankers or as required by law (less any tax  required
      to  be withheld by the Corporation) and payment thereof shall satisfy such
      dividends. Dividends which are represented by a cheque which has not  been
      presented  to  the Corporation's  bankers  for payment  or  that otherwise
      remain unclaimed for a  period of six  years from the  date on which  they
      were  declared to be payable shall be  forfeited to the Corporation. If on
      any dividend payment date the dividend payable on such date is not paid in
      full on all the Class C Preferred Shares then issued and outstanding, such
      dividends or the unpaid part thereof shall be paid on a subsequent date or
      dates determined by the Board of Directors on which the Corporation  shall
      have  sufficient moneys  properly applicable to  the payment  of same. The
      holders of  the Class  C Preferred  Shares shall  not be  entitled to  any
      dividends  other than  or in excess  of the  fixed preferential cumulative
      cash dividends hereinbefore provided for.

5.3.3 No dividends  shall at  any time  be declared  or paid  or set  apart  for
      payment  on the Class A Common Shares and the Class B Non-Voting Shares or
      on any shares of any other class of the Corporation ranking junior to  the
      Class C Preferred Shares and the Corporation shall not call for redemption
      nor  purchase  or  otherwise acquire  for  value  less than  all  the then
      outstanding Class C Preferred Shares nor purchase or otherwise acquire for
      value any Class A Common Shares,  Class B Non-Voting Shares or any  shares
      of  any  other class  of the  Corporation  ranking junior  to the  Class C
      Preferred Shares so long as any  Class C Preferred Shares are  outstanding
      unless  in  each case  all  dividends, up  to  and including  the dividend
      payable on  the last  preceding  dividend payment  date,  on the  Class  C
      Preferred  Shares then issued and outstanding shall have been declared and
      paid or set apart  for payment at  the date of  such call for  redemption,
      purchase or other acquisition for value.

5.3.4 DISSOLUTION

     In  the  event  of  the  dissolution,  liquidation  or  winding-up  of  the
Corporation  or  other   distribution  of  assets   of  the  Corporation   among
shareholders for the purpose of winding up its affairs, the holders of the Class
C  Preferred Shares shall be entitled to receive from the assets and property of
the Corporation for each Class C  Preferred Share held by them respectively  the
Class  C Redemption Amount (as defined in Section 5.4) together with all accrued
and unpaid  preferential  cumulative  cash dividends  thereon  (which  for  such
purpose  shall be calculated as if such  dividends were accruing from day to day
for the  period from  the expiration  of the  last period  for which  cumulative
dividends  have been paid up  to but excluding the  date of distribution) before
any amount  shall  be  paid  or  any  assets  or  property  of  the  Corporation
distributed  to the  holders of  any Class A  Common Shares,  Class B Non-Voting
Shares or shares  of any other  class ranking  junior to the  Class C  Preferred
Shares.  After payment  to the holders  of the  Class C Preferred  Shares of the
amounts so payable  to them as  above provided,  they shall not  be entitled  to
share in any further distribution of the assets or property of the Corporation.

                                       D-35


5.4   REDEMPTION BY THE CORPORATION

5.4.1 In  this Section  5.4, the  "Class C Redemption  Amount" for  each Class C
      Preferred Share shall be the amount determined by dividing $   --   by the
      number of  issued and  outstanding Class  C Preferred  Shares, subject  to
      adjustment as provided in Section 5.4.2.

5.4.2 The  aggregate Class  C Redemption  Amount (which  shall be  determined by
      multiplying the total number of  issued and outstanding Class C  Preferred
      Shares by the Class C Redemption Amount) shall be deemed to be reduced, on
      a dollar-for-dollar basis and from time to time, by an amount equal to any
      amounts  released from escrow and paid  to the Corporation pursuant to the
      terms of the Escrow Agreement.

5.4.3 Subject to the provisions of subsection 32(2) of the Act, the  Corporation
      may  redeem at any time all but not  less than all of the then outstanding
      Class C Preferred Shares on payment, in cash or in kind, for each share to
      be redeemed, the Class C Redemption  Amount together with all accrued  and
      unpaid  preferential  cumulative cash  dividends  thereon (which  for such
      purpose shall be calculated as if  the dividends on the Class C  Preferred
      Shares to be so redeemed were accruing from day to day for the period from
      the expiration of the last period for which cumulative dividends have been
      paid up to but excluding the date of such redemption).

5.4.4 In the case of redemption of Class C Preferred Shares under the provisions
      of  Section 5.4.3 hereof, the Corporation shall, on the date determined by
      the Corporation for redemption pay or cause to be paid to or to the  order
      of  each registered holder of the Class  C Preferred Shares to be redeemed
      the Class C Redemption  Amount and any other  amounts required by  Section
      5.4.3  for each  Class C  Preferred Share registered  in the  name of such
      holder on presentation and surrender of the certificates representing  the
      Class  C  Preferred  Shares  redeemed  at  the  registered  office  of the
      Corporation or any other place or places designated by the Corporation. On
      and after the date of redemption, the Class C Preferred Shares called  for
      redemption shall cease to be entitled to dividends and the holders thereof
      shall  not be entitled  to exercise any  of the rights  of shareholders in
      respect thereof unless payment  of the Class C  Redemption Amount and  any
      other  amounts required by  Section 5.4.3 in respect  thereof shall not be
      made upon presentation  of certificates in  accordance with the  foregoing
      provisions,  in which  case the  rights of  the shareholders  shall remain
      unaffected.

5.4.5 The Corporation shall have  the right at  any time on  and after the  date
      determined  by the  Corporation for  redemption of  the Class  C Preferred
      Shares to  deposit  the redemption  price  of  the shares  so  called  for
      redemption  to  a  special account  in  a  specified chartered  bank  or a
      specified trust company in  Canada, to be paid  without interest to or  to
      the  order  of the  respective holders  of such  Class C  Preferred Shares
      called for  redemption upon  presentation and  surrender to  such bank  or
      trust company of the certificates representing the same. Upon such deposit
      being  made, the Class C Preferred  Shares in respect whereof such deposit
      shall have been made shall be deemed to be redeemed and all rights of  the
      holders  thereof after such deposit shall  be limited to receiving without
      interest their proportionate part of  the total Class C Redemption  Amount
      so  deposited against presentation and  surrender of the said certificates
      held by them respectively. Any interest allowed on any such deposit  shall
      belong  to the  Corporation. Redemption moneys  that are  represented by a
      cheque which  has not  been  presented to  the Corporation's  bankers  for
      payment  or  that otherwise  remain  unclaimed (including  moneys  held on
      deposit to a special account  as provided for above)  for a period of  six
      years  from the  date specified for  redemption shall be  forfeited to the
      Corporation.

5.4.6 Upon the redemption of the Class  C Preferred Shares under the  provisions
      of  Section 5.4.3, the number of authorized Class C Preferred Shares shall
      be reduced by the number of Class C Preferred Shares so redeemed.

5.5   VOTING RIGHTS

     Subject to applicable law and any  other provisions of the articles of  the
Corporation,  the holders of Class  C Preferred Shares shall  not be entitled to
receive notice of, nor to attend nor vote at any meetings of the shareholders of
the Corporation; provided that  in the event that  holders of Class C  Preferred
Shares are entitled to vote at a meeting of holders of Class C Preferred Shares,
the  holders of Class  C Preferred Shares shall  have one vote  for each Class C
Preferred Share held.

                                       D-36


5.6   PRIORITY

     The Class A Common Shares and the  Class B Non-Voting Shares shall rank  on
parity  and junior to the  Class C Preferred Shares  and shall be subordinate in
all respects to the rights, privileges, restrictions and conditions attaching to
the Class C Preferred Shares.

5.7   SPECIFIED OFFER

5.7.1 DEFINED TERMS

     In this Section 5.7, the following terms shall have the following meanings,
respectively:

     (a)  "BID PRICE" means the consideration for each Class A Common Share  and
          each  Class B  Non-Voting Share offered  to holders of  Class A Common
          Shares and holders of Class  B Non-Voting Shares, respectively,  under
          the  Required Bids which consideration shall  have a fair market value
          of not less than  the average of  the fair market value  of a Class  A
          Common Share on the date that the Required Bids are made as determined
          in  writing  by  two nationally  recognized  investment  banking firms
          retained by the Offeror for the purpose of providing such valuation in
          connection with the Required Bids.

     (b)  "DESIGNATED NUMBER" means the number of Class A Common Shares that are
          subject to  a Specified  Offer, together  with the  Offeror's Class  A
          Common Shares.

     (c)  "GROUP"  means Persons  who would constitute  a group  for purposes of
          subsection 111(5) of the Tax Act.

     (d)  "OFFER DATE" means the date on which a Specified Offer is made.

     (e)  "OFFER TO ACQUIRE" includes:

        (i)   an offer to  purchase, a  public announcement of  an intention  to
              make  an offer to purchase, or a solicitation of an offer to sell,
              securities;

        (ii)  the receipt of an  offer to sell securities,  whether or not  such
              offer to sell has been solicited,

       or  any combination  thereof, and the  Person receiving an  offer to sell
       shall be deemed to be making an Offer to Acquire to the Person that  made
       the offer to sell.

     (f)  "OFFEROR" means a Person that makes an Offer to Acquire Class A Common
          Shares,  and includes any Persons related  to such Person for purposes
          of the  Tax Act  or any  other Person  that is  acting jointly  or  in
          concert  with such Person or who would, together with such Person (and
          other Persons), constitute a Group.

     (g)  "OFFEROR'S CLASS A COMMON  SHARES", on any date,  means the number  of
          Class  A Common Shares beneficially  owned, directly or indirectly, or
          over  which  control   or  direction  is   exercised  (including   any
          combination  of the  foregoing), on the  relevant date  by the Offeror
          either alone or together with a Group.

     (h)  "REQUIRED BIDS" means the concurrent offers required to be made to all
          holders of  Class  A Common  Shares  and to  all  holders of  Class  B
          Non-Voting Shares in the circumstances provided in Section 5.7.2.

     (i)  "SPECIFIED OFFER" means an Offer to Acquire Class A Common Shares made
          by an Offeror where the number of Class A Common Shares subject to the
          Offer  to Acquire  (the "SPECIFIED  OFFER SHARES"),  together with the
          Offeror's Class A Common Shares on the Offer Date, would constitute in
          the aggregate more than 50% of the total issued and outstanding  Class
          A Common Shares on the Offer Date.

     (j)  "SPECIFIED  OFFER  SHARES"  has  the  meaning  set  out  in Subsection
          5.7.1(i).

5.7.2 CONDITION PRECEDENT TO ACQUISITION OF CLASS A COMMON SHARES PURSUANT TO A
      SPECIFIED OFFER

     An Offeror shall not  acquire any Class A  Common Shares under a  Specified
Offer  without first complying with the  provisions of this Section 5.7.2. Prior
to, and as a condition precedent to, the acquisition by an Offeror of any  Class
A  Common  Shares under  a Specified  Offer, the  Offeror shall  make concurrent
offers to  acquire Class  A Common  Shares  and Class  B Non-Voting  Shares  for
consideration  for each Class A  Common Share and each  Class B Non-Voting Share
equal to the Bid  Price, on the same  terms, except as to  the number of  shares
subject to

                                       D-37


the  offers,  which  offers  shall  comply  with  the  provisions  of applicable
securities legislation relating to a formal  take-over bid (whether or not  such
offers are required by law to so comply) (the "REQUIRED BIDS"):

     (a)  to  all holders of  Class A Common  Shares for such  number of Class A
          Common Shares as is equal to the number of Specified Offer Shares; and

     (b)  to all holders of Class B Non-Voting Shares for such number of Class B
          Non-Voting Shares that is equal to the lesser of:

        (i)   A x B,  where A  equals the Designated  Number of  Class A  Common
              Shares divided by the total number of issued and outstanding Class
              A Common Shares on the Offer Date and B equals the total number of
              issued  and outstanding Class B Non-Voting Shares on the date that
              the Required Bids are made; and

        (ii)  the number of  issued and  outstanding Class  B Non-Voting  Shares
              excluding those that are beneficially owned, or over which control
              or  direction is exercised, on the date that the Required Bids are
              made (including any combination of the foregoing) by the Offeror;

        provided that:

     (c)  no shares may  be taken-up or  paid for under  either of the  Required
          Bids,  unless all  shares tendered  to each  of the  Required Bids are
          taken-up and paid for concurrently; and

     (d)  the Offeror shall issue  a press release following  the expiry of  the
          Required  Bids and one Business Day prior to the take-up of any shares
          tendered to the Required Bids, which press release shall disclose:

        (i)   the approximate  number  of Class  A  Common Shares  and  Class  B
              Non-Voting Shares tendered to the Required Bids; and

        (ii)  whether  a sufficient  number of  Class A  Common Shares  has been
              tendered to the Required Bids such that the Offeror would acquire,
              on take-up  and  payment  for  such  shares,  when  added  to  the
              Offeror's  Class A Common Shares on the date of take-up, more than
              50% of the total issued and  outstanding Class A Common Shares  on
              the date of take-up.

5.8   FAILURE TO COMPLY

     In  the event that  an Offeror acquires, directly  or indirectly, more than
50% of the total issued  and outstanding Class A  Common Shares in violation  of
Section  5.7, then, effective  on the completion of  such acquisition and during
such time that the Offeror's Class A  Common Shares constitute more than 50%  of
the  total issued  and outstanding  Class A Common  Shares, the  total number of
votes attaching  to  the  Offeror's  Class  A  Common  Shares  shall  equal  the
difference  between:  (a) the  total number  of issued  and outstanding  Class A
Common Shares, and (b) the number of  the Offeror's Class A Common Shares,  and,
for  greater certainty, the Class A Common Shares other than the Offeror's Class
A Common Shares shall continue to have one vote per share.

                                       D-38


                                   EXHIBIT 2
               REPRESENTATIONS AND WARRANTIES OF THE CORPORATION

     The Corporation hereby represents  and warrants to  MDS that the  following
are  true and correct  on the date  hereof and acknowledges  that MDS is relying
upon these representations and warranties  in connection with the entering  into
of this Agreement and the transactions contemplated by this Agreement:

     (a)  Organization.   Each of the Corporation  and its Subsidiaries has been
          duly incorporated or formed under applicable law, is validly  existing
          and  has  the  corporate  or  legal power  and  authority  to  own its
          properties  and  conduct  its   businesses  as  presently  owned   and
          conducted.  Each  of  the  Corporation and  its  Subsidiaries  is duly
          qualified to  carry on  business, and  is in  good standing,  in  each
          jurisdiction  in  which  the  character of  its  properties,  owned or
          leased, or  the  nature of  its  activities makes  such  qualification
          necessary, except where the failure to be so qualified will not have a
          Material  Adverse Effect. The Corporation Disclosure Letter sets forth
          a list of  all of the  Subsidiaries of the  Corporation and any  other
          Person  in which  the Corporation or  a Subsidiary  holds an interest,
          including the jurisdiction  of incorporation or  organization and  the
          ownership interest of the Corporation or a Subsidiary in such Persons.

     (b)  Capitalization.  The authorized capital of the Corporation consists of
          an  unlimited  number  of Common  Shares  and an  unlimited  number of
          special shares, issuable in series,  of which 51,786 Series D  special
          shares  are authorized.  As of the  date hereof,  there are 55,945,584
          Common Shares, and no special shares in the capital of the Corporation
          issued and  outstanding.  Except  as  set  forth  in  the  Corporation
          Disclosure   Letter,  there  are   no  options,  warrants,  conversion
          privileges or other  rights, agreements,  arrangements or  commitments
          obligating  the Corporation  or any  Subsidiary to  issue or  sell any
          shares or other ownership interests of  the Corporation or any of  its
          Subsidiaries or securities or obligations of any kind convertible into
          or  exchangeable for  any shares or  other ownership  interests of the
          Corporation or any  Subsidiary, nor  are there  outstanding any  stock
          appreciation  rights,  phantom equity  or similar  rights, agreements,
          arrangements or commitments based upon  the book value, income or  any
          other  attribute of  the Corporation or  any of  its Subsidiaries. All
          outstanding securities of  the Corporation have  been duly  authorized
          and   are   validly  issued   and  outstanding   as  fully   paid  and
          non-assessable securities and have been issued in compliance with  all
          Applicable  Laws  and  pre-emptive rights.  There  are  no outstanding
          bonds,  debentures  or   other  evidences  of   indebtedness  of   the
          Corporation  or any Subsidiary  having the right to  vote (or that are
          convertible for or  exercisable into  securities having  the right  to
          vote)  on any matter. There are no outstanding contractual obligations
          of the Corporation or any of its Subsidiaries or, to the knowledge  of
          the  Corporation, any other Person  to repurchase, redeem or otherwise
          acquire any of the outstanding securities of the Corporation or any of
          its Subsidiaries or with respect to  the voting or disposition of  any
          outstanding securities of the Corporation or any of its Subsidiaries.

     (c)  Authority and No Violation.

        (i)   The Corporation has the requisite corporate power and authority to
              enter   into  this  Agreement  and   to  perform  its  obligations
              hereunder. The execution  and delivery  of this  Agreement by  the
              Corporation  and  the  consummation  by  the  Corporation  of  the
              transactions  contemplated  by  this  Agreement  have  been   duly
              authorized  by the Board and no other corporate proceedings on the
              part of the Corporation are necessary to authorize this  Agreement
              or the transactions contemplated hereby other than:

            (A)  with  respect  to  the  Circular, the  calling  of  the Special
                 Meeting and other matters relating solely to the implementation
                 of the Arrangement, the approval of the Board; and

            (B)  with respect to the completion  of the Arrangement, subject  to
                 the  Interim Order, the approval of  at least two-thirds of the
                 votes  cast  by  the  Securityholders  present  in  person   or
                 represented  by proxy  at the Special  Meeting with Convertible
                 Securityholders and Shareholders voting  together as one  class
                 and  the approval  of a  majority of  the Minority Shareholders
                 present in  person  or  represented by  proxy  at  the  Special
                 Meeting.

        (ii)  This  Agreement  has  been  duly  executed  and  delivered  by the
              Corporation and constitutes a valid and binding obligation of  the
              Corporation,  enforceable  against the  Corporation  in accordance
              with its terms.

                                       D-39


        (iii) Each of the Independent Committee and the Board has (A) determined
              that the Arrangement is fair from a financial point of view to the
              Shareholders (other than  MDS and its  affiliates and  associates)
              and  is  in  the  best  interests of  the  Corporation  and  to so
              represent in the Circular, (B) received an oral opinion from  KPMG
              that  the consideration to be  received by the Shareholders (other
              than MDS  and  its  affiliates and  associates)  pursuant  to  the
              Arrangement  is  fair  from  a financial  point  of  view  to such
              Shareholders, (C) determined to support and to recommend that  the
              Shareholders  vote in favour of  the Arrangement Resolution and to
              make such  recommendation in  the Circular;  and (D)  advised  the
              Corporation  that  the  members  of the  Board  that  attended the
              meeting to consider the foregoing intend to vote the Common Shares
              held by them in favour of  the Arrangement and to so represent  in
              the Circular.

        (iv) Except  as  set forth  in  the Corporation  Disclosure  Letter, the
             approval of  this  Agreement, the  execution  and delivery  by  the
             Corporation  of this  Agreement and  the performance  by it  of its
             obligations hereunder including the  completion of the  Arrangement
             will  not: (A) result in a violation or breach of any provision of,
             require any  consent to  be  obtained under  or  give rise  to  any
             termination rights or payment obligation under any provision of (I)
             its  or  any  of its  Subsidiaries'  certificate  of incorporation,
             articles,  by-laws,  or  other  charter  documents,  including  any
             unanimous   shareholder  agreement   or  any   other  agreement  or
             understanding with any party holding  an ownership interest in  any
             Subsidiary,  (II)  any agreement,  contract, license,  franchise or
             permit to  which  it or  any  of its  Subsidiaries  is a  party  or
             beneficiary  other than  where such  violation or  breach, consent,
             termination right or payment obligation  alone or in the  aggregate
             would  not result in a Material  Adverse Effect on the Corporation,
             or (III) any law, regulation,  order, judgement or decree to  which
             it  or any of its Subsidiaries is subject  or by which it or any of
             its  Subsidiaries  is  bound;  (B)  give  rise  to  any  right   of
             termination  or any  payment, or  acceleration of  indebtedness, or
             cause any indebtedness to come  due before its stated maturity,  or
             give  rise to any rights of  first refusal or other buy-sell rights
             or change  in  control or  influence  or reversion  rights  or  any
             restriction  or limitation under, any agreement, contract, license,
             franchise or permit  to which it  or any of  its Subsidiaries is  a
             party  other  than where  such  right, acceleration  or restriction
             alone or in the  aggregate would not result  in a Material  Adverse
             Effect  on the Corporation; or (C) result in any payment (including
             severance, unemployment  compensation, golden  parachute, bonus  or
             otherwise) becoming due to any director, officer or employee of the
             Corporation  or any  of its  Subsidiaries or  increase any benefits
             otherwise  payable  under  any  Benefit  Plans  or  result  in  the
             acceleration of time of payment or vesting of any such benefits.

     (d)  No Default.  Neither the Corporation nor any of its Subsidiaries is in
          default  under,  and there  exists no  event, condition  or occurrence
          which, after notice or lapse of time or both, would constitute such  a
          default  or  would  give rise  to  a  right to  termination  under any
          contract, agreement, licence or franchise to which it is a party which
          default or termination would  cause a Material  Adverse Effect on  the
          Corporation.

     (e)  Absence  of  Changes.   Since December  31, 2002,  except as  has been
          publicly disclosed in any publicly  available document filed with  the
          Ontario Securities Commission by the Corporation:

        (i)   the  Corporation  and  its  Subsidiaries  have  not  incurred  any
              liabilities  or  obligations  of  any  nature  (whether  absolute,
              accrued,  contingent or otherwise) which would, individually or in
              the aggregate, have a Material Adverse Effect on the  Corporation;
              and

        (ii)  the  Corporation  has  not  effected any  material  change  in its
              accounting methods, principles or practices.

     (f)  Employment Agreements.   Other than  as set forth  in the  Corporation
          Disclosure Letter:

        (i)   neither  the Corporation nor any of its Subsidiaries is a party to
              any written or oral policy, agreement, obligation or understanding
              providing for severance or termination payments to any Person;

        (ii)  neither the Corporation nor any of its Subsidiaries is bound by or
              a party  to any  collective bargaining  contracts with  any  trade
              union,  council  of  trade unions,  employee  bargaining  agent or
              affiliated bargaining agent;

                                       D-40


        (iii) neither the Corporation nor any of its Subsidiaries is subject  to
              any  claim for  wrongful dismissal, constructive  dismissal or any
              other tort claim, actual or, to its knowledge, threatened, or  any
              litigation,  actual or, to its  knowledge, threatened, relating to
              employment  or   termination  of   employment  of   employees   or
              independent contractors; and

        (iv) the  Corporation and  its Subsidiaries have  operated in accordance
             with all Applicable  Laws with  respect to  employment and  labour,
             including,  but not  limited to,  employment and  labour standards,
             workplace safety and insurance, pay equity, workers'  compensation,
             human rights and labour relations and there are no current, pending
             or,  to the  knowledge of  the Corporation,  threatened proceedings
             before any  board or  tribunal with  respect to  any employment  or
             labour matters.

     (g)  Pension  and  Employee  Benefits.    All  the  Benefit  Plans  of  the
          Corporation and  its Subsidiaries  are set  forth in  the  Corporation
          Disclosure  Letter. None of the Corporation or any of its Subsidiaries
          currently has or has ever had a defined benefit pension plan.

       All agreements  and  undertakings  by  the  Corporation  or  any  of  its
       Subsidiaries  to provide post-retirement profit sharing, medical, health,
       life insurance or other benefits to any present or former employee of the
       Corporation or any of its  Subsidiaries are disclosed in the  Corporation
       Disclosure Letter.

     (h)  Books  and Records.   The  corporate records  and minute  books of the
          Corporation and its Subsidiaries have been maintained substantially in
          accordance with Applicable Laws and  are complete and accurate in  all
          material  respects. Financial  books and  records and  accounts of the
          Corporation and its  Subsidiaries in all  material respects: (i)  have
          been  maintained in accordance with good business practices on a basis
          consistent with prior years; (ii) are stated in reasonable detail  and
          accurately  and fairly  reflect the  transactions and  dispositions of
          assets of the Corporation and  its Subsidiaries; and (iii)  accurately
          and fairly reflect the basis for the consolidated financial statements
          of the Corporation.

     (i)   Financial  Statements.    The Audited  Financial  Statements  and the
           Unaudited Financial  Statements  were  prepared  in  accordance  with
           generally  accepted  accounting  principles  in  Canada  consistently
           applied, and fairly present  the consolidated financial condition  of
           the   Corporation  at   the  respective   dates  indicated   and  the
           consolidated results of operations of the Corporation for the periods
           covered by  such  statements  and reflect  appropriate  and  adequate
           reserves  in  respect  of  contingent  liabilities,  if  any,  of the
           Corporation and its Subsidiaries.

     (j)   No Indebtedness.    Other than  the  indebtedness set  forth  in  the
           Corporation  Disclosure Letter, the  Audited Financial Statements and
           the  Unaudited  Financial   Statements,  the   Corporation  and   its
           Subsidiaries  do not  have any outstanding  indebtedness for borrowed
           money.

     (k)  Guarantees and  Loans.    The  Corporation does  not  have  any  loans
          outstanding  to any Person. Other than as set forth in the Corporation
          Disclosure Letter, none  of the  Corporation or  its Subsidiaries  has
          given  or  agreed to  give, nor  is it  a  party to  or bound  by, any
          guarantee  of   indebtedness,  indemnity   or  suretyship   or   other
          obligations of any Person, nor is it contingently responsible for such
          indemnity or suretyship or obligations.

     (l)  Litigation,  etc.  Except  as set forth  in the Corporation Disclosure
          Letter,  there  is  no  claim,  action,  proceeding  or  investigation
          ("PROCEEDINGS")  pending or, to the knowledge of the Corporation after
          due inquiry, threatened against or relating to the Corporation or  any
          of  its Subsidiaries or affecting any of their properties, licences or
          assets, including in respect of  Clinical Programs or by  participants
          in  Clinical Programs, before any  court or governmental or regulatory
          authority or body that, if adversely determined, is reasonably  likely
          to  result  in  damages in  the  aggregate  in excess  of  $100,000 or
          injunctive relief or prevent or  materially delay consummation of  the
          transactions  contemplated  by this  Agreement  or the  Arrangement or
          prevent  the  Corporation  from   carrying  out  its  obligations   in
          connection  with the Arrangement, nor is  the Corporation aware of any
          facts or circumstances that would form  the basis for any such  claim,
          action,  proceeding or investigation. Neither  the Corporation nor any
          of its  Subsidiaries  is  subject  to  any  outstanding  order,  writ,
          injunction  or  decree  that is  or  is  reasonably likely  to  have a
          Material Adverse Effect  on the  Corporation or that  involves or  may
          involve, or restricts or may restrict, or requires or may require, the
          expenditure  of an amount of  money that is in  excess of $100,000, or
          prevent  or  materially   delay  consummation   of  the   transactions
          contemplated  by  this  Agreement  or  prevent  the  Corporation  from
          carrying out in  any material  respect its  obligations in  connection
          with the Arrangement.

                                       D-41


     (m) Intellectual  Property Rights.  The Corporation is not aware of a claim
         of any infringement or breach of any Intellectual Property of any other
         Person by  any of  the Corporation  or  a Subsidiary  and none  of  the
         Corporation  or a  Subsidiary has received  any notice that  any of the
         Corporation or  a  Subsidiary  is  infringing  upon  or  breaching  any
         Intellectual Property rights of any other Person.

     (n)  Compliance  with Laws.   Each of the  Corporation and its Subsidiaries
          has complied  with and  is not  in violation  of any  requirements  of
          Applicable  Laws, including  securities laws and  stock exchange rules
          other than where a violation will  not have a Material Adverse  Effect
          on the Corporation.

     (o)  Disclosure  Record.    Other  than  as  set  out  in  the  Corporation
          Disclosure Letter, the Corporation has made all filings required to be
          made by it under applicable securities laws and stock exchange  rules.
          The  public filings made by the  Corporation, since December 31, 2002,
          under the provisions of applicable securities laws as of the dates  of
          such filings (i) do not contain any misstatement of a material fact or
          omit  to  state  a material  fact  required  to be  stated  therein or
          necessary in order to  make the statements made  therein, in light  of
          the circumstances under which they were made, not misleading; and (ii)
          complied  with  the requirements  of  applicable securities  laws. The
          Corporation has not  filed any confidential  material change or  other
          report or other document with any securities regulatory authorities or
          stock  exchange or other  self-regulatory authority which  at the date
          hereof remains confidential other than  an application to the  Ontario
          Securities  Commission  and Agence  nationale d'encadement  du secteur
          financier dated  December 17,  2003 in  respect of  an exemption  from
          valuation  requirements,  an application  to  certain of  the Canadian
          Securities Administrators  dated  January 9,  2004  in respect  of  an
          exemption  from audit  requirements and  an application  to the United
          States Securities Exchange  Commission dated January  20, 2004 and  an
          application  dated February 6, 2004 filed with NASDAQ. The Corporation
          is a reporting issuer  in good standing under  the Securities Act  and
          the analogous legislation in each of the provinces of Canada and is in
          material compliance with the by-laws, rules and regulations of the TSX
          and NASDAQ.

     (p)  Description of Real Property.  Other than the property located at 2535
          Meadowpine  Boulevard, Mississauga,  Ontario, neither  the Corporation
          nor any Subsidiary owns any real property.

     (q)  Environmental.

        (i)   The Business is, and has always been, operated in compliance  with
              Environmental   Law.  Neither  the  Corporation  nor  any  of  its
              Subsidiaries have received  any written  notice of  non-compliance
              with Environmental Law.

        (ii)  There  are no outstanding orders, rulings, notices of violation or
              potential  liability,  demands   or  directives   issued  by   any
              government  authority  against  the  Corporation  or  any  of  its
              Subsidiaries under or pursuant to any Environmental Law,  alleging
              any  liabilities  or  requiring any  work,  repairs, compensation,
              construction, corrective  action or  capital expenditures  by  the
              Corporation  or any  of its Subsidiaries;  and to the  best of the
              knowledge of the  Corporation or  any of  its Subsidiaries,  after
              appropriate  inquiries and investigations, there are no facts that
              would give rise to any  such orders, rulings, notices, demands  or
              directives.

        (iii) Neither  the Corporation nor any  of its Subsidiaries have caused,
              permitted, or become aware of  the Discharge of any Substance  at,
              on,  from, under or to any  real property owned by the Corporation
              or used  by  the  Corporation  to  carry  out  its  Business  (the
              "PREMISES"),  or the Discharge  of a Substance  from a facility or
              property owned  or  operated  by  a  third  party,  including  any
              previous  owners or operators, for which the Corporation or any of
              its Subsidiaries may have liability or that could have a  Material
              Adverse Effect.

        (iv) To  the best of the knowledge of the Corporation, after appropriate
             inquiries and investigations, none of  the following exist on,  at,
             in  or  under the  Premises:  (i) underground  storage  tanks; (ii)
             asbestos-containing  material  in  any  form  or  condition;  (iii)
             polychlorinated  biphenyls, including any polychlorinated biphenyls
             on or in materials or equipment; (iv) lead; (v) urea  formaldehyde;
             or (vi) landfills or waste disposal areas.

        (v)  The  Corporation  has  provided MDS  with  copies  of Environmental
             Compliance Reviews conducted in  respect of the  Premises by or  on
             behalf  of the  Corporation, any of  its Subsidiaries  or any other
             Person in respect of the Premises.
                                       D-42


     (r)  Regulatory Compliance.  The  clinical, pre-clinical and other  studies
          and  tests (the "CLINICAL  PROGRAMS") conducted by or  on behalf of or
          sponsored by  the  Corporation  or  any Subsidiary  or  in  which  the
          Corporation, any Subsidiary or its products or product candidates have
          participated  were  and,  if  still pending,  are  being  conducted in
          accordance  with  the  medical  and  scientific  research   procedures
          applicable  thereto. The Corporation and  each Subsidiary has operated
          and currently  is in  compliance  in all  material respects  with  all
          applicable  rules, regulations and  policies of Health  Canada and the
          U.S. Food  and  Drug  Administration  (collectively,  the  "REGULATORY
          AUTHORITIES").  The Corporation has not  received any notices or other
          correspondence  from   the  Regulatory   Authorities  or   any   other
          governmental  agency requiring  the termination  or suspension  of any
          Clinical Program.  The Corporation  has received  an informed  consent
          letter from each participant in a Clinical Program.

     (s)  Tax  Matters.   Other than  as set  out in  the Corporation Disclosure
          Letter, in respect of the Corporation and its Subsidiaries:

        (i)   each has duly,  and in  a timely  manner, filed  all Tax  Returns,
              including  any elections and designations  required by or referred
              to in any such Tax Return, which  were required to be filed by  it
              with  any governmental  authority prior  to the  date hereof. Each
              such return, including the  financial statements annexed  thereto,
              was correct and complete when filed;

        (ii)  none  has ever been required to file  any Tax Return with, and has
              never been liable to pay any Taxes to, any governmental  authority
              outside  Canada  except Hemosol  (USA) Inc.  which has  filed U.S.
              federal and state returns,  and no claim has  ever been made by  a
              governmental authority in a jurisdiction where Tax Returns are not
              filed that it is or may be subject to the imposition of any Tax by
              that jurisdiction;

        (iii) each  has withheld, and will continue  until the Effective Date to
              withhold, any Taxes which are required by any Applicable Law to be
              withheld and has timely paid or remitted, and will continue  until
              the  Effective Date to pay and remit,  on a timely basis, the full
              amount of any Taxes  which have been or  will be withheld, to  the
              relevant governmental authority;

        (iv) each  has paid, on a timely  basis, all Taxes, including any amount
             due on  or  before the  Effective  Date, including  instalments  or
             prepayments  of Taxes, which are required  to have been paid to any
             governmental authority,  and  no  deficiency with  respect  to  the
             payment  of any Taxes or Tax  instalments has been asserted against
             it by any  governmental authority.  Since the date  of the  Audited
             Financial  Statements,  no  liability  has  been  incurred  by  the
             Corporation or  a Subsidiary,  whether  actual or  contingent,  for
             Taxes,  other than in  the ordinary course  of business. Other than
             Taxes provided for as a current liability in the Audited  Financial
             Statements,  no liability or obligation in respect of any Taxes for
             any time, period or event on or before the Effective Date has  been
             incurred by the Corporation;

        (v)  there  are  no  outstanding assessments,  reassessments,  audits or
             other formal claim,  and the  Corporation has no  knowledge of  any
             threatened   or   potential   assessment   or   other  proceedings,
             negotiations or investigations, against  either the Corporation  or
             the  Subsidiaries. The Corporation  is not aware  of any contingent
             liability for Taxes  or any  grounds for an  assessment or  similar
             action;

        (vi) all  Tax Returns  filed in Canada  for taxation years  ending on or
             before December  31,  2001  have  been  assessed  by  the  relevant
             governmental authority;

        (vii) none  is a party to any  agreement, waiver or arrangement with any
              governmental authority which relates to any extension of time with
              respect to the filing of any  Tax Return, any payment of Taxes  or
              any  assessment or similar notice and none is subject to liability
              for Taxes of any other person;

        (viii) no circumstances exist or have existed which have resulted in  or
               may  result in  the application  of any  of sections  79 to 80.04
               (relating generally to debt forgiveness) of the Federal Tax Act;

        (ix) the  value  of   the  consideration  paid   or  received  for   the
             acquisition,  sale,  transfer  or  provision  of  property  or  the
             provision of  services from  or to  a non-arm's  length person  was
             equal to the estimated fair market value thereof;

                                       D-43


        (x)  records  or  documents  that meet  the  requirements  of paragraphs
             247(4)(a) to (c) of the Federal Tax Act have been made and obtained
             with respect to all transactions and arrangements with persons  not
             dealing at arm's length within the meaning of the Federal Tax Act;

        (xi) none  has claimed any reserve  for Tax purposes, if  as a result of
             such claim any amount  could be included in  income for a  taxation
             year  ending after the Effective Date  and none has made a payment,
             nor is or may  be obligated to  make any payment,  that may not  be
             deductible  by virtue of section 67 or 78 of the Federal Tax Act or
             any analogous provision;

        (xii) there are  no circumstances  which  have or  could result  in  the
              application, either before, on or after Effective Date, of section
              17  or paragraph 214(3)(a) of the Federal Tax Act or any analogous
              provision, either to the Corporation or the Subsidiaries; and

        (xiii) each is  duly  registered with  the  Canada Customs  and  Revenue
               Agency  under Part IX  of the Excise Tax  Act (Canada). All input
               tax  credits  claimed  are  justified  and  have  been  correctly
               calculated  and all registration,  reporting, payment, collection
               and remittance requirements in respect  of Part IX of the  Excise
               Tax  Act (Canada) and  other federal, state  and provincial sales
               tax legislation have been complied with.

     (t)  Acquisition of Control.  There has been no acquisition of control, for
          purposes of the Federal Tax Act, of the Corporation.

     (u)  Undeducted Balances.    The  Undeducted  Balances  for  the  following
          accounts  of the Corporation  as at December  31, 2002 are  as set out
          below:

<Table>
                                                                    
         Federal Non-Capital Losses..................................  $ 19,109,073
         Ontario Non-Capital Losses..................................  $ 57,300,553
         Federal Scientific Research and Experimental Development
           Deductions................................................  $186,300,852
         Federal Investment Tax Credits..............................  $ 32,281,523
         Ontario Scientific Research and Experimental Development
           Deductions................................................  $186,300,852
</Table>

     (v)  Consents.  No authorization, consent  or approval of any  governmental
          agency,  regulatory  body,  court  or  Person that  is  a  party  to a
          Corporation Material  Agreement is  required  in connection  with  the
          execution,   delivery  or   performance  of  this   Agreement  by  the
          Corporation or  the  consummation  of  the  transactions  contemplated
          herein  and in the Plan  of Arrangement, except as  set out in Exhibit
          10.

     (w)  Material Agreements.   Other  than  as set  forth in  the  Corporation
          Disclosure  Letter, there are no agreements material to the conduct of
          the Business  (each a  "CORPORATION  MATERIAL AGREEMENT").  Except  as
          disclosed in the Corporation Disclosure Letter, no approval or consent
          of  any Person  is needed  in order to  assign such  agreements to the
          Blood Products Limited Partnership and for such agreements to continue
          in full force  and effect following  consummation of the  transactions
          contemplated hereby.

     (x)  Insurance.   The  Corporation and  its Subsidiaries  are in compliance
          with the terms of their  insurance policies in all material  respects.
          There  are no  claims by  the Corporation  or any  of the Subsidiaries
          under any such policy or instrument as to which any insurance  company
          is  denying  liability  or  defending under  a  reservation  of rights
          clause.

     (y)  Brokers.  Except as set forth in the Corporation Disclosure Letter, no
          broker, finder  or investment  banker is  entitled to  any  brokerage,
          finder's or other fee or commission, or to the reimbursement of any of
          its  expenses, by the Corporation  in connection with the transactions
          contemplated herein and in the Plan of Arrangement.

     (z)  Paid Up  Capital.   The paid  up capital  (within the  meaning of  the
          Federal Tax Act) of the Common Shares is not less than $200 million as
          at the date hereof.

     (aa) Tax  Ruling.  The  Corporation has reviewed the  submissions of MDS to
          the Canada Customs & Revenue Agency in respect of the application  for
          the  Tax Ruling, the  Tax Ruling and  the Supplemental Submissions and
          all factual  statements in  such  submissions and  the Tax  Ruling  in
          respect  of the Corporation and its  Subsidiaries are true and correct
          in all material respects and there is no omission to state a  material
          fact  that is required to  make a statement therein  in respect of the
          Corporation or its Subsidiaries not misleading.

                                       D-44


                                   EXHIBIT 3
                     REPRESENTATIONS AND WARRANTIES OF MDS

     MDS hereby represents and  warrants to the  Corporation that the  following
are true and correct on the date hereof and acknowledges that the Corporation is
relying  upon  these  representations  and  warranties  in  connection  with the
entering into of this Agreement:

     (a)  Organization.    MDS  has  been  duly  incorporated  or  formed  under
          applicable  law, is  validly existing and  has the  corporate or legal
          power and  authority to  own  the Labs  Assets  and conduct  the  Labs
          Business  as presently owned  and conducted. MDS  is duly qualified to
          carry on the Labs Business in Ontario, except where the failure to  be
          so qualified will not have a Material Adverse Effect.

     (b)  Authority and No Violation.  MDS has the requisite corporate power and
          authority  to enter into this Agreement and to perform its obligations
          hereunder. The execution and delivery of this Agreement by MDS and the
          consummation by MDS of the transactions contemplated by this Agreement
          have been duly  authorized by  the board of  directors of  MDS and  no
          other  corporate or  shareholder proceedings  on the  part of  MDS are
          necessary to authorize this Agreement or the transactions contemplated
          hereby except  as  expressly  provided for  in  this  Agreement.  This
          Agreement  has been duly executed and delivered by MDS and constitutes
          a valid  and binding  obligation of  MDS, enforceable  against MDS  in
          accordance  with  its  terms.  Other  than as  set  forth  in  the MDS
          Disclosure Letter, the approval of  this Agreement, the execution  and
          delivery  by MDS of  this Agreement and  the performance by  it of its
          obligations hereunder will not: (i) result in a violation or breach of
          any material  provision  of  (A)  its  certificate  of  incorporation,
          articles,  by-laws  or  other charter  documents;  (B)  any agreement,
          contract, license, franchise  or permit  to which  MDS is  a party  or
          beneficiary other than where such violation or breach would not result
          in  a  Material Adverse  Effect, or  (C)  any law,  regulation, order,
          judgement or decree to which MDS is subject or by which MDS is  bound;
          (ii)  give  rise  to  any right  of  termination,  or  acceleration of
          indebtedness, or cause any indebtedness to come due before its  stated
          maturity,  or  give  rise to  any  rights  of first  refusal  or other
          buy-sell rights or change in  control or influence or any  restriction
          or  limitation under,  any agreement, contract,  license, franchise or
          permit  to  which  MDS  is  a  party  other  than  where  such  right,
          acceleration  or restriction  would not  result in  a Material Adverse
          Effect on the  Labs Business; (iii)  result in the  imposition of  any
          encumbrance,  charge or lien  upon any of  the assets of  MDS; or (iv)
          result in any payment (including severance, unemployment compensation,
          golden parachute, bonus  or otherwise) becoming  due to any  director,
          officer  or employee of MDS or increase any benefits otherwise payable
          under any Benefit Plans of MDS  or result in the acceleration of  time
          of payment or vesting of any such benefits.

     (c)  No  Default.  MDS is not in  default under, and there exists no event,
          condition or occurrence which, after notice or lapse of time or  both,
          would  constitute  such  a  default  under,  any  contract, agreement,
          licence or franchise to which it is a party which default would  cause
          a Material Adverse Effect on the Labs Business.

     (d)  Litigation,   etc.    There   is  no  claim,   action,  proceeding  or
          investigation pending or, to the knowledge of MDS, threatened  against
          or  relating to  MDS or affecting  any of its  properties, licences or
          assets before any  court or  governmental or  regulatory authority  or
          body that, if adversely determined, is reasonably likely to prevent or
          materially delay consummation of the transactions contemplated by this
          Agreement  or the  Arrangement or  prevent MDS  from carrying  out its
          obligations in connection with  the Arrangement, nor  is MDS aware  of
          any  facts or  circumstances that  would form  the basis  for any such
          claim, action, proceeding or investigation.  Other than as set out  in
          the  MDS  Disclosure Letter,  MDS is  not  subject to  any outstanding
          order, writ, injunction or decree that  is or is reasonably likely  to
          have  a Material Adverse Effect on the Labs Business, that involves or
          may involve, or restricts or may restrict, or requires or may require,
          the expenditure of an amount of money for the Labs Business that is in
          excess of $1,000,000 as a condition to or a necessity for the right or
          ability of MDS to conduct its Labs Business in any manner in which  it
          has been carried on prior to the date hereof, or prevent or materially
          delay consummation of the transactions contemplated by this Agreement,
          or  the Arrangement, or prevent MDS  from carrying out in any material
          respect its obligations in connection with the Arrangement.

     (e)  Restrictions on Business Activities.  There is no agreement, judgment,
          injunction, order  or  decree  binding  upon MDS  that  has  or  could
          reasonably  be expected to have the effect of prohibiting, restricting
                                       D-45


          or materially impairing any business practice of MDS' Labs Business or
          the conduct of the Labs Business, as currently conducted.

     (f)  Consents.  No authorization, consent  or approval of any  governmental
          agency,  regulatory body, court  or Person that  is a party  to a Labs
          Material Agreement  is  required  in connection  with  the  execution,
          delivery  or performance of this Agreement  by MDS or the consummation
          of  the  transactions   contemplated  herein  and   in  the  Plan   of
          Arrangement, except as set out in Exhibit 11.

     (g)  Compliance  with  Law.    MDS  has  conducted  the  Labs  Business  in
          compliance  in  all  material   respects  with  the  requirements   of
          Applicable Laws and is not in material violation thereof.

     (h)  Brokers.   No broker,  finder or investment banker  is entitled to any
          brokerage,  finder's  or   other  fee   or  commission,   or  to   the
          reimbursement of any of its expenses, by the Corporation in connection
          with   the  transactions  contemplated  herein  and  in  the  Plan  of
          Arrangement.

     (i)   Financial Statements.  The Labs Financial Information represents,  in
           all  material respects, the results of operations attributable to the
           Labs Business for the periods indicated therein.

     (j)   Employees.  Other than as set forth in the MDS Disclosure Letter, all
           employees and medical directors  employed by MDS  solely in the  Labs
           Business  as at December 31, 2003 were transferred to Subco effective
           January 1, 2004.

     (k)  Material Agreements.  There are no agreements material to the  conduct
          of the Labs Business (each a "LABS MATERIAL AGREEMENT").

     (l)   Sufficiency of Assets.  Other than as set forth in the MDS Disclosure
           Letter,  following the transfer of the Labs Assets by MDS to the Labs
           Limited  Partnership  in  accordance   with  the  Labs   Contribution
           Agreement  and the  issuance of licences  by the  Ontario Ministry of
           Health under the  Licensing Act  to the Labs  Limited Partnership  in
           respect  of  each  of the  Labs  Leased Locations,  the  Labs Limited
           Partnership shall  be  entitled  to receive  all  revenues  from  the
           Ontario Ministry of Health in respect of the Labs Business.

                                       D-46


                                   EXHIBIT 4
                             ESCROW AGREEMENT TERMS

PARTIES

     The  Corporation, New Hemosol and CIBC  Mellon Trust Company, or such other
escrow agent  mutually acceptable  to the  Corporation and  New Hemosol,  acting
reasonably (the "ESCROW AGENT").

ESCROWED FUNDS

     $1,000,000  (the "ESCROWED FUNDS") to be  contributed by New Hemosol at the
Effective Time.

TERM

     The Escrowed  Funds  shall  be  retained by  the  Escrow  Agent  until  all
indemnifiable  claims made  by the  Corporation under  the Corporation Indemnity
Agreement (each a  "CLAIM") within one  year following the  Effective Date  (the
"CLAIM  PERIOD") have been resolved by agreement between the Corporation and New
Hemosol or have become subject to a final non-appealable order of a court having
jurisdiction over the matter in dispute, as applicable.

INVESTMENT OF ESCROWED FUNDS

     The Escrowed Funds will be deposited in a segregated interest bearing trust
account (the "ACCOUNT") established  for such purpose by  the Escrow Agent.  The
Escrow  Agent will invest the  funds as New Hemosol  and the Corporation jointly
instruct failing which  the deposit  will earn  interest at  the Escrow  Agent's
customary  rate. Interest earned on the funds on deposit in the Account shall be
retained in the Account.

RELEASE OF ESCROWED FUNDS

     The Corporation shall  deliver a notice  (a "CLAIM NOTICE")  to the  Escrow
Agent  and New Hemosol within 15 Business Days of the expiry of the Claim Period
which Claim Notice will identify all Claims that arise within the Claim Period.

     Upon the  expiry  of  such  15  Business  Day  period,  provided  that  the
Corporation has not delivered a Claim Notice to the Escrow Agent and New Hemosol
or  the Corporation has delivered  a Claim Notice and  the Claims subject to the
Claim Notice aggregate less  than $1,000,000, the Escrow  Agent will release  to
New  Hemosol the  funds in  the Account  less an  amount equal  to the aggregate
amount of all Claims  identified in the Claim  Notice together with  accumulated
interest  on such  aggregate amount  (collectively, the  "RETAINED AMOUNT"), and
shall retain that portion of the  Retained Amount applicable to each  particular
Claim  until such Claim  has been dealt  with in accordance  with the provisions
described below.

     If the Corporation delivers  a Claim Notice to  New Hemosol and the  Escrow
Agent  within 15  Business Days of  the expiry  of the Claim  Period, the Escrow
Agent shall pay out to the Corporation  the amount of the relevant Claim on  the
20(th)  Business Day following receipt of such  Claim Notice from the amounts on
deposit in the  Account unless  New Hemosol objects  in writing  within such  20
Business Day period.

     If  New Hemosol  objects to  any Claim specified  in the  Claim Notice, the
Escrow Agent shall not release the funds  in respect of such Claim until it  has
received (a) a joint direction of New Hemosol and the Corporation to release the
applicable  funds,  or  (b)  a  final non-appealable  order  of  a  court having
jurisdiction over the matter in dispute.

     Upon the  final  resolution of  all  Claims  and all  payments  in  respect
thereof,  if any,  have been made  by the  Escrow Agent to  the Corporation, the
Escrow Agent shall  release the  balance of the  Account (including  accumulated
interest on such balance), if any, to New Hemosol.

DUTIES OF ESCROW AGENT

     The  Escrow  Agent shall  be  subject to  standard  commercially reasonable
duties and obligations customary for escrow agreements of this nature.

                                       D-47


REMUNERATION AND INDEMNITY OF ESCROW AGENT

     New Hemosol and the Corporation shall  each be responsible for one-half  of
the reasonable fees and expenses of the Escrow Agent.

     New  Hemosol and the Corporation shall provide customary indemnities to the
Escrow Agent.

                                       D-48


                                   EXHIBIT 5
                          BLOOD PRODUCTS LP AGREEMENT

                                   HEMOSOL LP

               -------------------------------------------------

                         LIMITED PARTNERSHIP AGREEMENT
               -------------------------------------------------

                                    --   , 2004
                                       D-49


                                   HEMOSOL LP

                         LIMITED PARTNERSHIP AGREEMENT

                 THIS AGREEMENT made the  -- day of  -- , 2004,

B E T W E E N:

             HEMOSOL CORP.,
             a corporation existing under the laws of
             the Province of Ontario,

             (hereinafter referred to as the "GENERAL
             PARTNER"),

                              - and -

             HEMOSOL INC. (to be renamed    --   ),
             a corporation existing under the laws of
             the Province of Ontario,

             (hereinafter referred to as the "INITIAL
             LIMITED PARTNER").

     WHEREAS the General Partner and the  Initial Limited Partner wish to  enter
into this agreement to govern the business and affairs of Hemosol LP;

     NOW  THEREFORE  THIS  AGREEMENT  WITNESSES that,  in  consideration  of the
respective covenants and agreements hereinafter contained, the parties agree  as
follows:

                                   ARTICLE 1
                                 INTERPRETATION

1.1 DEFINED TERMS

     For  all purposes of this Agreement, except as otherwise expressly provided
herein or unless the  context otherwise requires, the  following terms have  the
following meanings:

    "ACCEPTANCE DATE" has the meaning set out in Section 9.4;

    "ACT"  means the Limited Partnerships Act  (Ontario), as amended or replaced
    from time to time;

    "AFFILIATE" has the meaning given to that term in the Business  Corporations
    Act (Ontario) as in effect on the date of this Agreement;

    "AGREEMENT"  means this agreement, as amended, modified or supplemented from
    time to time;

    "ARRANGEMENT" means  the  arrangement  under section  182  of  the  Business
    Corporations  Act  (Ontario)  involving  the  Initial  Limited  Partner, its
    shareholders and MDS Inc.  consummated in accordance with  the order of  the
    Superior Court of Justice of Ontario dated    --   , 2004;

    "ASSUMED  LIABILITIES" means the obligations  and liabilities of the Initial
    Limited Partner  assumed by  the Partnership  pursuant to  the  Contribution
    Agreement;

    "BUSINESS" has the meaning set out in Section 2.3;

    "BUSINESS  DAY" means any day other than a Saturday, a Sunday or a statutory
    or civic holiday in Toronto, Ontario;

    "CAPITAL ACCOUNT" has the meaning set out in Section 4.3;

    "CONTRIBUTION  AGREEMENT"  means  the   contribution  agreement  dated   the
    Effective Date between the Partnership and the Initial Limited Partner;

    "CONVERTIBLE  SECURITIES" means  securities of  the Initial  Limited Partner
    that are convertible or exercisable or  otherwise give the holder the  right
    to acquire common shares or other securities of the Initial Limited Partner;

    "DATE OF CLOSING" has the meaning set out in Section 9.8;

                                       D-50


    "DECLARATION"  means a declaration  filed pursuant to  the Act, establishing
    the Partnership as a  limited partnership, as the  same may be amended  from
    time to time;

    "DISTRIBUTION"  means  any  distribution  of cash  or  other  assets  of the
    Partnership to any Partner;

    "EFFECTIVE DATE" means the date  on which the Arrangement becomes  effective
    as  established by the date of issue shown on the certificate of arrangement
    issued pursuant to section 183 of the Business Corporations Act (Ontario);

    "EFFECTIVE TIME" means 12:01 a.m. (Toronto time) on the Effective Date;

    "ESCROW RELEASE FUNDS" means any amounts released from escrow to the General
    Partner pursuant to the  escrow agreement dated  the Effective Date  between
    the General Partner, the Initial Limited Partner and #;

    "FAIR MARKET VALUE" has the meaning set out in Section 10.1;

    "FISCAL  YEAR" means  the fiscal  year of  the Partnership  as determined in
    accordance with Section 2.7;

    "GAAP" means generally accepted accounting principles as approved from  time
    to  time by the Canadian Institute of Chartered Accountants or any successor
    body, consistently applied;

    "INDEPENDENT VALUATOR" has the meaning set out in Section 10.1;

    "LIMITED PARTNERS"  means the  Initial Limited  Partner and  any  additional
    limited  partners of the Partnership admitted in accordance with Section 5.8
    but excludes any  persons that  have ceased to  be limited  partners of  the
    Partnership pursuant to Section 5.8(b);

    "NET  INCOME" or "NET LOSS", in  respect of any period, means, respectively,
    the net income or net loss of  the Partnership in respect of such period  as
    determined in accordance with GAAP;

    "OFFER" has the meaning set out in Section 9.4;

    "OFFER PRICE" has the meaning set out in Section 9.4;

    "OFFERED UNITS" has the meaning set out in Section 9.4;

    "ORIGINAL  ASSETS"  means  the  assets transferred  by  the  Initial Limited
    Partner to the Partnership pursuant to the Contribution Agreement;

    "PARTNERS" means the General Partner and the Limited Partners;

    "PARTNERSHIP" means the limited partnership  formed and organized under  the
    Act pursuant to this Agreement and the filing of the Declaration;

    "PATIENT RECORDS" has the meaning set out in Section 10.2;

    "PERSON"  means  an  individual,  corporation,  partnership,  joint venture,
    association, syndicate, trust, unincorporated  organization or other  entity
    or any trustee, executor, administrator or other legal representative;

    "PURCHASE PRICE" has the meaning set out in Section 9.8;

    "PURCHASED UNITS" has the meaning set out in Section 9.8;

    "RECEIVER" has the meaning set out in Section 8.2;

    "REGISTER" has the meaning set out in Section 6.9;

    "SELLING LIMITED PARTNER" has the meaning set out in Section 9.4;

    "TAG-ALONG EXPIRY PERIOD" has the meaning set out in Section 9.6;

    "TAG-ALONG NOTICE" has the meaning set out in Section 9.6;

    "TAG-ALONG OFFER" has the meaning set out in Section 9.6;

    "TAX  ACT" means the  Income Tax Act  (Canada), as amended  or replaced from
    time to time;

    "THIRD PARTY PURCHASER" has the meaning set out in Section 9.6;

    "TIME OF CLOSING" has the meaning set out in Section 9.8; and

    "UNITS" has the meaning set out in Section 3.1.

                                       D-51


1.2 INTERPRETATION NOT AFFECTED BY HEADINGS, ETC.

     The division of this Agreement into Articles and Sections and the insertion
of  headings  are  for  reference  purposes  only  and  shall  not  affect   the
interpretation  of this Agreement. Unless  otherwise indicated, any reference in
this Agreement  to an  Article or  Section refers  to the  specified Article  or
Section of this Agreement.

1.3 NUMBER AND GENDER

     Words  importing the singular number only shall include the plural and vice
versa. Words importing gender shall include all genders.

1.4 BINDING NATURE

     This Agreement shall inure to  the benefit of and  shall be binding on  and
enforceable  by the parties and, where  the context so permits, their respective
successors and permitted assigns.

1.5 AMENDMENT AND WAIVERS

     No amendment or  waiver of  any condition  or provision  of this  Agreement
shall  be  binding on  either Partner  unless  consented to  in writing  by that
Partner. No  waiver  of any  condition  or  provision of  this  Agreement  shall
constitute  a waiver of any  other condition or provision,  nor shall any waiver
constitute a continuing waiver unless otherwise expressly provided.

1.6 CURRENCY

     All references to dollar amounts in this Agreement are to Canadian currency
unless otherwise specified.

                                   ARTICLE 2
                            FORMATION OF PARTNERSHIP

2.1 FORMATION

     The General Partner and the Initial Limited Partner hereby agree to form  a
limited  partnership under the  provisions of the  Act. The rights, restrictions
and liabilities of the Partners shall be  as provided in the Act, except to  the
extent otherwise provided in this Agreement.

2.2 NAME

     The name of the Partnership shall be "Hemosol LP" or such other name as the
General  Partner may determine from  time to time. The  Partnership may also use
the French form of any  such name. The Partnership shall  hold itself out as  an
entity  separate  from any  other Person  or entity.  The General  Partner shall
notify the Limited Partners of any change in name of the Partnership.

2.3 BUSINESS OF PARTNERSHIP

     The business of the Partnership (the "BUSINESS") shall be to engage in  the
business  that the Initial  Limited Partner was engaged  in immediately prior to
the Effective Time, to engage in such other business as may be determined by the
General Partner from  time to  time and  to engage  in all  such activities  and
exercise all such powers as the General Partner may determine to be ancillary or
incidental thereto or reasonably in furtherance thereof.

2.4 RECORDS OFFICE

     The  Partnership  shall  cause  copies  of the  books  and  records  of the
Partnership to be kept at 2585  Meadowpine Blvd., Mississauga, Ontario L5N  8H9,
or  at such other location  within Ontario as the  General Partner may determine
from time to time. The location at which such copies are maintained from time to
time shall be  deemed to  be the Partnership's  principal place  of business  in
Ontario for the purposes of the Act.

2.5 PLACE OF BUSINESS

     The  Partnership shall carry on its  business at and from the Partnership's
principal place  of business  in Canada  or such  other place  or places  within
Canada as the General Partner may determine from time to time.

                                       D-52


2.6 TERM

     The  term of the  Partnership shall commence  on the date  hereof and shall
continue until terminated in accordance with this Agreement.

2.7 FISCAL YEAR

     The first Fiscal Year  of the Partnership shall  end on December 31,  2004,
and thereafter each Fiscal Year shall commence on the 1st day of January in each
year and end on the 31st day of December of such year.

2.8 MAINTAINING STATUS OF THE PARTNERSHIP

     The  General Partner shall forthwith file  on behalf of the Partnership the
Declaration under the Act and thereafter,  on a timely basis whenever  required,
any amendment thereto and shall do all things and cause to be executed and filed
such  certificates, declarations, instruments  and documents as  may be required
under the laws of the Province of Ontario and the laws of any other jurisdiction
in which the Partnership  may carry on business  to reflect the constitution  of
the  Partnership. The General Partner and the Limited Partners shall execute and
deliver as promptly as possible any documents that may be necessary or desirable
to accomplish the purposes of this Agreement or to give effect to the  formation
and  continuance  of the  Partnership  under any  and  all applicable  laws. The
General Partner shall take all necessary actions in order to maintain the status
of the Partnership as a  limited partnership under the  Act and to maintain  the
limited  liability of  the Limited Partners  under the  Act and the  laws of any
other applicable jurisdictions.

2.9 TITLE TO PARTNERSHIP ASSETS

     Title to any or all of the  Partnership's assets shall be held in the  name
of  the General Partner as agent for the  Partners or as the General Partner may
determine from time  to time. The  General Partner declares  and warrants  that,
regardless  of the name in which title to  the assets is held, all assets of the
Partnership shall be held solely for the  use and benefit of the Partnership  in
accordance  with the provisions of  this Agreement and all  of the assets of the
Partnership shall be recorded  as the property of  the Partnership on its  books
and records.

                                   ARTICLE 3
                        UNITS AND INITIAL CONTRIBUTIONS

3.1 UNITS

     The  interests of the Partners in the Partnership shall be divided into and
represented by units (the "UNITS") of which an unlimited number are  authorized,
each  of which  when issued  shall represent an  interest in  the Partnership as
herein provided. The Partnership may issue fractional Units.

3.2 INITIAL CONTRIBUTIONS

     (a)  The Partners  acknowledge and  agree that  the following  transactions
          shall occur on the Effective Date in accordance with the Arrangement:

        (i)  the  General Partner shall subscribe for one Unit and shall pay the
             sum of $6,000 as a capital contribution to the Partnership in  full
             satisfaction of the subscription price therefor;

        (ii)  pursuant  to  the  Contribution  Agreement,  the  Initial  Limited
              Partner shall transfer the Original  Assets to the Partnership  in
              consideration  for  the issuance  of  9,999 Units  to  the Initial
              Limited Partner  and  the assumption  by  the Partnership  of  the
              Assumed Liabilities;

        (iii) the  Initial  Limited Partner  shall transfer  9,112 of  its 9,999
              Units referred to in Section 3.2(a)(ii) to the General Partner  in
              consideration  for the redemption of  Class C preferred non-voting
              shares in the capital of the  Initial Limited Partner held by  the
              General   Partner  and  the  General  Partner  agreeing  to  issue
              convertible securities to acquire shares in its capital to persons
              holding Convertible  Securities and  the  Capital Account  of  the
              General Partner shall be deemed to be increased by the amount that
              was added to the Capital Account of the Initial Limited Partner in
              connection with the issuance of such Units and the Capital Account
              of  the Initial Limited  Partner shall be  reduced by such amount;
              and

                                       D-53


        (iv) the General Partner shall subscribe  for 2,500 Units and shall  pay
             the  sum of  $15,000,000 in  full satisfaction  of the subscription
             price therefor.

     (b)  The Partners agree that the transactions referred to in Section 3.2(a)
          shall only be effective upon the consummation of the Arrangement.

     (c)  Upon completion of the transactions referred to in Section 3.2(a), the
          number of Units held by each  of the Partners and the Capital  Account
          of each of the Partners shall be as follows:

<Table>
<Caption>
         PARTNER                                                       NUMBER OF UNITS   CAPITAL ACCOUNT
         -------                                                       ---------------   ---------------
                                                                                   
         General Partner.............................................      11,613          $69,678,000
         Initial Limited Partner.....................................         887          $ 5,322,000
                                                                           ------          -----------
           Total.....................................................      12,500          $75,000,000
                                                                           ======          ===========
</Table>

3.3 NATURE OF UNITS

     Each Partner shall have the following rights:

     (a)  the  right to allocations of  Net Income or Net  Loss and the right to
          allocations of  the  taxable income  or  loss of  the  Partnership  in
          proportion to the number of Units held in accordance with Sections 4.1
          and 4.2; and

     (b)  the  right to participate in Distributions in proportion to the number
          of Units held in accordance with Section 4.7.

     Units shall not be represented by physical certificates.

3.4 EQUALITY OF UNITS

     Notwithstanding the  amount  of capital  recorded  in a  Partner's  Capital
Account,  each Unit  shall entitle  the holder  thereof to  the same  rights and
obligations as the holder of any other Unit and no Partner shall be entitled  to
any  privilege,  priority or  preference  in relation  to  any other  Partner in
respect of its Units.

3.5 PLEDGE OF UNITS

     The Limited  Partners  shall  not mortgage,  charge,  assign,  hypothecate,
pledge  or otherwise create a  security interest in respect  of their Units. The
General Partner  may, with  the prior  approval of  the Limited  Partners  (such
approval   not  to   be  unreasonably   withheld),  mortgage,   charge,  assign,
hypothecate, pledge or otherwise  create a security interest  in respect of  its
Units.

                                   ARTICLE 4
          ALLOCATIONS, CAPITAL ACCOUNTS, DISTRIBUTIONS AND ADDITIONAL
                             CAPITAL CONTRIBUTIONS

4.1 ALLOCATION OF NET INCOME OR NET LOSS

     Net  Income or  Net Loss  for a  Fiscal Year  shall be  allocated among the
Partners in proportion to the number of Units held by each Partner at the end of
the Fiscal Year.

4.2 TAX ALLOCATIONS

     The income and loss of the Partnership for income tax purposes for a Fiscal
Year shall be allocated  to each Partner  in proportion to  the number of  Units
held  by each Partner at the end of the Fiscal Year. Each of the Partners agrees
to file its tax returns on a basis consistent with such allocation.

4.3 CAPITAL ACCOUNTS

     There shall be established a capital account (a "CAPITAL ACCOUNT") for each
Partner, in which shall be recorded the following transactions:

     (a)  Where a  Partner contributes  additional capital  to the  Partnership,
          there  shall be added to the Partner's Capital Account an amount equal
          to the  amount,  if  any, by  which  the  Fair Market  Value  of  such

                                       D-54


          contribution   exceeds  the   aggregate  Fair  Market   Value  of  any
          consideration (other  than Units)  received by  the Partner  from  the
          Partnership in respect of the contribution.

     (b)  Where  a Partner receives property or  money from the Partnership as a
          return of capital from the Partnership, there shall be subtracted from
          the Partner's Capital Account an amount equal to the Fair Market Value
          of such property or money.

     (c)  There shall be added to each  Partner's Capital Account the amount  of
          Net  Income  (if any)  for  any period  allocated  to such  Partner in
          accordance with Section 4.1.

     (d)  There shall  be subtracted  from each  Partner's Capital  Account  the
          amount  of Net Loss (if any) for  any period allocated to such Partner
          in accordance with Section 4.1.

4.4 NO RIGHT TO WITHDRAW CAPITAL

     No Partner shall have the right  to receive any Distributions or  otherwise
to  withdraw any  positive balance  in its  Capital Account  except as expressly
provided in this Agreement.

4.5 NO INTEREST

     No Partner shall be  entitled to receive interest  from the Partnership  in
respect  of any positive balance in its  Capital Account and no Partner shall be
liable to pay interest to the Partnership in respect of any negative balance  in
its Capital Account.

4.6 NEGATIVE OR ZERO BALANCE IN CAPITAL ACCOUNT

     The  interest of a Partner in the Partnership shall not terminate by reason
of there being a negative or zero balance in that Partner's Capital Account.

4.7 DISTRIBUTIONS

     Distributions shall be made in such amounts and at such times as determined
by the  General  Partner  in  its sole  discretion.  All  Distributions  of  the
Partnership  shall be allocated to the Partners in proportion to the allocations
of Net Income in Section 4.1. The General Partner may reinvest cash generated by
the Partnership at any time in the Business in its sole discretion.

4.8 PARTNERSHIP ASSETS

     The Partners shall  look solely to  the assets of  the Partnership for  any
Distributions,  whether in connection with the dissolution of the Partnership or
otherwise. If  the assets  of the  Partnership remaining  after the  payment  or
discharge,  or the provision for payment or discharge, of the debts, liabilities
and obligations of the Partnership  are insufficient to make any  Distributions,
no  Partner shall  have any  recourse against the  separate assets  of the other
Partner.

4.9 ADDITIONAL CAPITAL CONTRIBUTIONS

     (a)  The Limited  Partners  shall  not  be entitled  to  make  any  capital
          contributions   to  the   Partnership  in  addition   to  the  initial
          contributions referred to in Section 3.2(a) unless the General Partner
          otherwise agrees. The Limited Partners  shall not be required to  make
          any additional capital contributions to the Partnership.

     (b)  The General Partner may, from time to time, make capital contributions
          to the Partnership in cash or non-cash property.

     (c)  If  a Partner makes  a contribution of  capital, the Partnership shall
          issue Units to such Partner. The number of such Units to be issued  to
          such Partner shall be determined by dividing (i) the Fair Market Value
          of  such capital contribution by (ii) the Unit Value. The "UNIT VALUE"
          shall  be  determined  by  dividing  the  Fair  Market  Value  of  the
          Partnership   immediately  prior   to  the  making   of  such  capital
          contribution by  the  number of  Units  outstanding as  at  such  time
          provided  that  the  "Unit  Value" for  the  purposes  of  any capital
          contribution by the General Partner  to the Partnership funded by  the
          Escrow  Release  Funds  shall  be $6,000.  The  General  Partner shall
          provide a  notice  to  the  Limited  Partners  of  any  such  issuance
          specifying  the  number  of  Units  issued,  the  Unit  Value  and the
          percentages that the Units

                                       D-55


          held by each Partner, following  any such issuance, represents of  the
          aggregate number of Units outstanding, following any such issuance.

4.10 LOANS AND GUARANTEES

     Subject to Section 6.20, the General Partner or Affiliates thereof may lend
to  the Partnership  such funds  as determined  by the  General Partner  and the
Partnership may, with the prior approval of the Limited Partners (such  approval
not  to be  unreasonably withheld),  lend to  the General  Partner or Affiliates
thereof such funds as  determined by the General  Partner. The Partnership  may,
with  the  prior approval  of  the Limited  Partners  (such approval  not  to be
unreasonably withheld), guarantee the obligations or liabilities of the  General
Partner  or  an Affiliate  thereof  and mortgage,  charge,  assign, hypothecate,
pledge or otherwise create  a security interest  in all or any  of it assets  or
property in connection therewith.

                                   ARTICLE 5
                              THE LIMITED PARTNERS

5.1 LIMITATIONS OF AUTHORITY OF THE LIMITED PARTNERS

     The Limited Partners shall not be entitled to:

     (a)  take  part  in  the  control  or management  of  the  business  of the
          Partnership or transact any business for the Partnership;

     (b)  execute any document or take any action pursuant to which it binds  or
          purports to bind the Partnership or the General Partner;

     (c)  undertake   any  obligation   or  responsibility  on   behalf  of  the
          Partnership;

     (d)  hold themselves  out  as  having  or purport  to  have  the  power  or
          authority to bind the Partnership or the General Partner; or

     (e)  bring  any action for partition, sale  or otherwise in connection with
          any interest  in any  property  of the  Partnership, whether  real  or
          personal,  or register, or permit to  be filed or registered or remain
          undischarged, against  any property  of the  Partnership any  lien  or
          charge  in  respect of  the interest  of the  Limited Partners  in the
          Partnership.

5.2 LIMITED LIABILITY OF LIMITED PARTNERS

     Subject to the provisions of the  Act and any other specific assumption  of
liability,  the liability of each Limited Partner for the debts, liabilities and
obligations of the  Partnership at any  relevant time shall  be limited to  such
Limited  Partner's capital  contributions to  the Partnership  and shall  not be
liable for any further claims, assessments or contributions to the  Partnership.
The  General Partner  shall use  reasonable means  to inform  all persons having
dealings with the Partnership of the limited liability of the Limited Partners.

5.3 INDEMNITY OF LIMITED PARTNERS BY GENERAL PARTNER

     The General Partner shall indemnify and hold harmless each Limited  Partner
from  and  against  any and  all  actions, claims,  costs,  losses, liabilities,
damages or expenses (including  reasonable legal fees)  suffered or incurred  by
such  Limited Partner if the liability of such Limited Partner is not limited in
the manner provided for in this Agreement by reason of the acts or omissions  of
the  General  Partner  performed or  omitted  fraudulently  or in  bad  faith or
attributable to  the  wilful misfeasance  or  gross negligence  of  the  General
Partner,  unless the liability  of such Limited  Partner is not  so limited as a
result of or arising out of any act or omission of such Limited Partner.

5.4 COMPLIANCE WITH LAWS

     On request  by the  General Partner,  the Limited  Partners shall  promptly
execute  such certificates and other documents  necessary to comply with any law
or regulation of any jurisdiction for the continuation and good standing of  the
Partnership.

                                       D-56


5.5 QUALIFICATION OF THE LIMITED PARTNERS

     Each  of the  Limited Partners  represents, warrants,  covenants and agrees
that it:

     (a)  is a corporation existing under the law of the Province of Ontario;

     (b)  has and shall continue  to have the corporate  power and authority  to
          perform  its obligations under this Agreement, and such obligations do
          not and will not conflict with or breach or result in a breach of  any
          of its constating documents and by-laws;

     (c)  is  not a "non-resident" of Canada for  the purposes of the Tax Act, a
          "non-Canadian" for the purposes  of the Investment Canada  Act(Canada)
          or  a "financial  institution" for the  purposes of  sections 142.2 to
          142.6 of the Tax Act; and

     (d)  has not financed, and will not finance, its acquisition of Units  with
          a  borrowing or other indebtedness for  which recourse is or is deemed
          to be limited for the purposes of section 143.2 of the Tax Act.

5.6 STATUS OF LIMITED PARTNERS

     Each Limited Partner agrees that it  will promptly provide evidence to  the
General  Partner upon  request of its  status under  the Tax Act  or any similar
statute affecting the  status of the  Partnership or of  any other matter  which
affects  or  may from  time to  time affect  such status.  If a  Limited Partner
becomes a non-resident of Canada  for the purposes of  the Tax Act, the  General
Partner may require such Limited Partner to cease to be a limited partner of the
Partnership  and sell its Units to residents of  Canada at a price equal to Fair
Market Value. In the event  that a Limited Partner fails  to comply with such  a
request, the General Partner shall have the right to sell such Limited Partner's
Units  or to purchase the same on behalf  of the Partnership at a price equal to
Fair Market Value.

5.7 POWER OF ATTORNEY

     Each Limited Partner hereby nominates, constitutes and appoints the General
Partner as such Limited Partner's true  and lawful attorney and agent with  full
power  of substitution and authority, in  such Limited Partner's name, place and
stead to do the following:

     (a)  make, execute, swear to, acknowledge,  deliver and record or file,  as
          the case may be, any of the following:

        (i)   the   Register,  the  Declaration  or   any  other  documents  and
              instruments required to qualify  or continue the qualification  of
              the  Partnership as a valid  and subsisting limited partnership in
              or otherwise to comply with the laws of any jurisdiction in  which
              the Partnership may from time to time conduct its business;

        (ii)  all  conveyances,  agreements and  other instruments  necessary or
              desirable to reflect, facilitate and implement the dissolution and
              termination of  the  Partnership  including  cancellation  of  any
              certificates or declarations;

        (iii)  all  elections,  determinations,  agreements  or  designations in
               connection with the Business permitted or required under the  Tax
               Act  or any  other taxation or  other legislation or  law of like
               import  of  Canada   or  of  any   provinces  thereof  or   other
               jurisdictions  in respect  of such Limited  Partner's interest in
               the Partnership or the affairs of the Partnership;

     (b)  execute and file with any governmental body or instrumentality thereof
          any documents necessary to be filed in connection with the Partnership
          or the Business; and

     (c)  execute and deliver all such documents or instruments on behalf of and
          in the  name of  the Partnership  and the  Limited Partner  as may  be
          deemed  necessary  by  the  General Partner  to  carry  out  fully the
          provisions of this Agreement in accordance with its terms.

     The power of  attorney granted  herein is  irrevocable and  subject to  the
provisions  of  any relevant  legislation, will  survive the  death, disability,
insolvency, incapacity  to manage  property or  other legal  incapacity of  each
Limited  Partner. Each Limited Partner agrees to be bound by all representations
or actions  made or  taken by  the General  Partner pursuant  to this  power  of
attorney  and  hereby waives  any and  all  defences which  may be  available to
contest, negate or  disaffirm the action  of the General  Partner taken in  good
faith  under this power of attorney. The  power of attorney granted herein shall
continue in respect of the General Partner as long as it is the general  partner
of  the  Partnership and  shall  not revoke  or  terminate thereafter  but shall
continue in respect of a successor general  partner as if the successor was  the
original  attorney. The  power of  attorney granted  herein shall  not revoke or
terminate any
                                       D-57


general continuing power of attorney previously granted by a Limited Partner and
shall not be revoked or terminated  by any general continuing power of  attorney
hereinafter granted by a Limited Partner.

5.8 NEW LIMITED PARTNERS

     (a)  The  General  Partner shall  be authorized  to admit  any Person  as a
          limited partner of the Partnership provided that such Person satisfies
          the qualifications referred to in Section 5.5.

     (b)  Upon the  transfer of  Units  by a  Limited  Partner as  permitted  by
          Article  9, the Register shall be  amended to reflect the admission of
          such transferee of Units as a limited partner of the Partnership,  the
          transferee shall become a limited partner of the Partnership and shall
          have  all of the rights and powers and  shall be subject to all of the
          restrictions and  liabilities  of the  transferor  in respect  of  the
          acquired  Units, except any liability of which such transferee did not
          have notice  of  at  the time  it  became  a limited  partner  of  the
          Partnership  and which could  not be ascertained  from this Agreement,
          the Declaration or  the Register. Unless  the transferor continues  to
          hold  any Units following  such transfer, the  transferor of the Units
          shall thereupon  cease to  be a  limited partner  of the  Partnership,
          provided,  however, that  the transferor  shall remain  liable for all
          defaults or liabilities which accrued or  were payable by it while  it
          was a limited partner of the Partnership.

                                   ARTICLE 6
                              THE GENERAL PARTNER

6.1 AUTHORITY OF THE GENERAL PARTNER

     Except  as otherwise provided herein, the  General Partner is authorized to
carry on the Business in the name of and on behalf of the Partnership, with full
power and exclusive  authority to  administer, manage, control  and operate  the
business  and affairs of the Partnership, and  has all power and authority to do
any act, take  any proceeding,  make any decision  and execute  and deliver  any
instrument,  deed, agreement or document necessary for or incidental to carrying
out the Business for  and on behalf of  and in the name  of the Partnership.  No
Person  dealing  with the  Partnership  shall be  required  to inquire  into the
authority of the General Partner  to do any act,  take any proceeding, make  any
decision  or execute and deliver any instrument, deed, agreement or document for
and on behalf of or in the name of the Partnership.

6.2 POWERS OF THE GENERAL PARTNER

     Without limiting the generality of  Section 6.1, the General Partner  shall
have  the full  power and  authority, to  do on  behalf and  in the  name of the
Partnership all things which, in its sole discretion, are necessary to carry  on
the Business including, without limitation, the right, power and authority:

     (a)  to purchase or lease property or equipment for the Business;

     (b)  to  manage, administer, conserve, develop,  operate and dispose of any
          and all properties or assets of the Partnership;

     (c)  to negotiate, execute and carry out, on behalf of the Partnership  any
          agreement in connection with the Business;

     (d)  to  employ,  retain,  engage or  dismiss  from  employment, personnel,
          agents, representatives or  professionals with the  powers and  duties
          upon  the terms and for  the compensation as in  the discretion of the
          General Partner  may be  necessary or  advisable in  carrying out  the
          Business;

     (e)  to  retain  such  legal  counsel,  accountants,  experts,  advisors or
          consultants  as  the  General  Partner  shall  consider  necessary  or
          advisable and to rely upon the advice of such Persons;

     (f)  to  purchase liability  and other  insurance that  the General Partner
          considers necessary or advisable;

     (g)  to open and operate any bank, trust or investment account on behalf of
          the Partnership and to designate from time to time the signatories  to
          such accounts;

     (h)  subject  to Section 4.10, to borrow money on behalf of the Partnership
          and  to  execute  loan  and   credit  agreements  on  behalf  of   the
          Partnership;

     (i)   to  invest funds  not immediately required  for the  Business in such
           investments as the General Partner may determine from time to time;
                                       D-58


     (j)   to pay all fees  and expenses of the  Partnership or incur such  fees
           and expenses of the Partnership;

     (k)  to  commence and prosecute any suit  or proceedings with respect to or
          on behalf of the Partnership, its  property or its business, take  the
          defence of the Partnership in any suit or proceedings taken against it
          and to settle any such suit or proceedings;

     (l)   subject  to Section  4.10, to mortgage,  charge, assign, hypothecate,
           pledge or otherwise create a security  interest in all or any  assets
           or  property of the  Partnership now owned  or hereafter acquired, to
           secure any  present and  future  borrowings, obligations,  costs  and
           expenses  of  the Partnership,  the General  Partner or  an Affiliate
           thereof;

     (m) to hold interests in partnerships or subsidiaries or other entities;

     (n)  to submit the  Partnership to  binding or  non-binding arbitration  or
          mediation  with  respect to  any issue  arising  in or  concerning its
          business or affairs;

     (o)  to appoint and remove agents and grant and rescind powers of attorney;

     (p)  to  file  any  elections,  determinations,  designations  or   returns
          required by any governmental or regulatory authority in respect of the
          affairs  of  the  Partnership  or  of  a  Partner's  interest  in  the
          Partnership;

     (q)  to retain and appoint an auditor of the Partnership; and

     (r)  to do anything that is in furtherance of or incidental to the Business
          or that is provided for in this Agreement.

     The General  Partner shall  use its  best efforts,  in the  conduct of  the
affairs  of the Partnership, to  put all Persons with  whom the Partnership does
business on notice that  the Partnership is a  limited partnership and that  the
Limited Partners are not liable for the obligations of the Partnership.

6.3 UNLIMITED LIABILITY OF GENERAL PARTNER

     The   General  Partner  shall  have  unlimited  liability  for  the  debts,
liabilities and obligations of the Partnership.

6.4 DUTY OF CARE

     The General Partner shall exercise its power and discharge its duties under
this Agreement  honestly,  in  good faith  and  in  the best  interests  of  the
Partnership  and  in connection  therewith shall  exercise  the degree  of care,
diligence  and  skill  that  a  reasonably  prudent  person  would  exercise  in
comparable circumstances.

6.5 QUALIFICATIONS OF THE GENERAL PARTNER

     The General Partner represents, warrants and covenants that it:

     (a)  is a corporation existing under the law of the Province of Ontario and
          that  so long as it is the General Partner of the Partnership it shall
          maintain its corporate existence;

     (b)  has and shall continue  to have the corporate  power and authority  to
          act  as  a  general partner  of  the  Partnership and  to  perform its
          obligations under this Agreement, and such obligations do not and will
          not conflict  with or  breach or  result in  a breach  of any  of  its
          constating documents, by-laws or agreements to which it is bound;

     (c)  is  not a "non-resident" of Canada for  the purposes of the Tax Act, a
          "non-Canadian" for the purposes  of the Investment Canada  Act(Canada)
          or  a "financial  institution" for the  purposes of  sections 142.2 to
          142.6 of the Tax Act;

     (d)  has and shall continue to have  all licenses and permits necessary  to
          carry on its business as the general partner of the Partnership in all
          jurisdictions  where  the activities  of  the general  partner  or the
          Partnership require such  licensing or other  form of registration  of
          the General Partner; and

     (e)  has  not financed, and will not finance, its acquisition of Units with
          a borrowing or other indebtedness for  which recourse is or is  deemed
          to be limited for the purposes of section 143.2 of the Tax Act.

                                       D-59


6.6 SAFEKEEPING OF ASSETS

     The General Partner is responsible for the safekeeping and use of all funds
and  assets of the  Partnership, whether or  not in its  immediate possession or
control, and the General Partner shall not employ or permit any other Person  to
employ  such funds or assets  in any manner except  for the exclusive benefit of
the Partnership.

6.7 NO COMMINGLING OF PARTNERSHIP FUNDS

     The funds of the Partnership shall be maintained in a separate bank account
and shall not be commingled with the funds of any other Person (including  those
of the Partners).

6.8 CONDUCT OF BUSINESS -- LIMITED LIABILITY

     The  General Partner shall, at all  times, conduct the business and affairs
of the Partnership in such a manner  that the liability of the Limited  Partners
will be limited to the fullest extent permitted by law.

6.9 REGISTER

     The  General Partner shall  maintain a register  (the "REGISTER") to record
the names  and addresses  of the  Partners, the  number of  Units held  by  each
Partner,  capital  contributions  and  Capital  Accounts  of  the  Partners  and
particulars of registration and transfers of Units at the principal office  from
time  to time of the General Partner in  Canada, a duplicate copy of which shall
be made available for inspection in accordance  with the Act at the location  in
Ontario specified in Section 2.4.

6.10 REIMBURSEMENT OF EXPENSES

     The  Partnership  shall reimburse  the General  Partner for  all reasonable
costs and expenses incurred in the performance of its duties as general  partner
hereunder  but specifically excluding costs and  expenses of any action, suit or
other proceedings in  which, or  in relation to  which, the  General Partner  is
adjudged  to have been grossly  negligent or to have  acted fraudulently, in bad
faith or with wilful misfeasance.

6.11 INDEPENDENT ACTIVITIES

     The General  Partner  and the  General  Partner's directors,  officers  and
employees  shall not  be required to  devote all  of their business  time to the
business of the Partnership but shall devote  such time as may be necessary  for
the  discharge of the  obligations and duties of  the General Partner hereunder.
The General Partner  shall have the  right to  engage in other  business of  any
kind, provided that such business is not in competition with the Business.

6.12 LIMITATION OF LIABILITY OF GENERAL PARTNER

     Notwithstanding  anything else contained in  this Agreement, but subject to
compliance with  Section 6.4,  neither  the General  Partner nor  its  officers,
directors,  shareholders,  employees or  agents are  liable, responsible  for or
accountable in damages or otherwise to the Partnership or a Limited Partner  for
any  action taken or failure to act on behalf of the Partnership believed by the
General Partner, acting  reasonably, to  be within  the scope  of the  authority
conferred  on the General Partner by this Agreement  or by law unless the act or
omission was performed or  omitted fraudulently or in  bad faith or  constituted
wilful misfeasance or gross negligence of the General Partner.

6.13 INDEMNITY OF GENERAL PARTNER BY PARTNERSHIP

     The  Partnership shall indemnify and hold  harmless the General Partner and
its officers, directors, shareholders, employees or agents from and against  any
losses,  costs, expenses,  liabilities and  damages (including  reasonable legal
fees) incurred by the  General Partner by reason  of acts, omissions or  alleged
acts or omissions arising out of the activities of the General Partner on behalf
of  the Partnership or  in furtherance of  the interest of  the Partnership, but
only if the acts, omissions or the alleged acts or omissions in respect of which
any actual or threatened action, proceeding  or claim are based, were  performed
in  good faith and  were not performed  or omitted in  breach of this Agreement,
fraudulently or in bad faith or as  a result of the wilful misfeasance or  gross
negligence  of  the  General Partner,  its  Affiliates,  shareholders, officers,
directors, employees or agents. The indemnification herein provided for shall be
made from the assets of  the Partnership and the  Limited Partners shall not  be
personally liable therefore.

                                       D-60


6.14 INDEMNITY OF PARTNERSHIP BY GENERAL PARTNER

     The  General Partner shall indemnify and hold harmless the Partnership from
and against any and  all actions, claims,  losses, costs, expenses,  liabilities
and  damages  (including  reasonable legal  fees)  suffered or  incurred  by the
Partnership by reason of the acts or omissions of the General Partner  performed
or  omitted fraudulently or in bad faith or attributable to the gross negligence
or wilful misfeasance of the General Partner.

6.15 DELEGATION BY GENERAL PARTNER

     The General Partner  may contract on  behalf of itself  or the  Partnership
with  any Person to carry out  any of the duties of  the General Partner and may
delegate to  such  Person  any  power  and  authority  of  the  General  Partner
hereunder,  subject to  the overall  supervision of  such Person  by the General
Partner. No such contract or delegation shall relieve the General Partner of any
of its obligations hereunder.  For greater certainty,  subject to Section  6.20,
the  General Partner may retain  Affiliates of the General  Partner on behalf of
the Partnership to provide goods and services to the Partnership.

6.16 RELIANCE

     The General Partner may rely and act upon any statement, report or  opinion
prepared by, or any advice received from, the auditor, legal counsel, experts or
other  professional advisors  of the  General Partner  or the  Partnership, and,
provided the  General  Partner  exercised  reasonable  care  in  selecting  such
advisors,  the General Partner shall  not be responsible or  held liable for any
loss or damage resulting from so relying or acting if the advice was within  the
area  of professional competence of the Person from whom it was received and the
General Partner acted in good faith and without negligence in relying thereon.

6.17 NO REMOVAL OF GENERAL PARTNER BY LIMITED PARTNERS

     The General  Partner may  not be  removed  as the  general partner  of  the
Partnership by the Limited Partners.

6.18 NO REMOVAL OF GENERAL PARTNER UPON INSOLVENCY

     In the event of the bankruptcy, insolvency, passing of a resolution for the
dissolution,  liquidation  or winding-up  of, making  of  an assignment  for the
benefit of creditors or appointment of a trustee or receiver of the affairs  of,
the General Partner, the General Partner shall not be deemed to have resigned as
general partner of the Partnership.

6.19 NO RESIGNATION OF GENERAL PARTNER EXCEPT IN CONNECTION WITH TRANSFER OF ALL
     UNITS

     (a)  The  General  Partner  shall  not resign  as  general  partner  of the
          Partnership, provided that it may  resign if the following  conditions
          are satisfied:

        (i)   the  General Partner transfers all (but  not less than all) of its
              Units to another Person (in compliance with Section 9.6) that: (A)
              is not a "non-resident" of Canada for the purposes of the Tax Act;
              (B) is not  a "non-Canadian"  for the purposes  of the  Investment
              Canada  Act (Canada); (C) is not a "financial institution" for the
              purposes of sections  142.2 to 142.6  of the Tax  Act; and (C)  if
              such  Person  is a  partnership,  is a  "Canadian  partnership" as
              defined in the Tax Act; and

        (ii)  such Person to  whom the General  Partner's Units are  transferred
              agrees  in writing to be bound by the provisions of this Agreement
              as general partner of the Partnership as of the effective date  of
              the resignation of the General Partner and from that time forward,
              for all purposes, assume the powers, duties and obligations of the
              General Partner under this Agreement.

     (b)  Upon the resignation of the General Partner in accordance with Section
          6.19(a):

        (i)   the  Partnership shall pay all  amounts payable by the Partnership
              to  the  General  Partner  accrued   to  the  effective  date   of
              resignation;

        (ii)  subject  to Section 6.13,  the Partnership shall  release and hold
              harmless the resigning  General Partner for  all actions,  claims,
              costs,  demands,  losses, damages  and expenses  respecting events
              relating to the Partnership and occurring after the effective date
              of such resignation;

        (iii) the resigning General Partner shall, at the Partnership's expense,
              do all things and take  all steps to transfer the  administration,
              management,   control  and  operation  of   the  business  of  the
              Partnership, the assets of the Partnership and the books,  records
              and accounts of the Partnership to the new

                                       D-61


              general   partner  and   will  execute  and   deliver  all  deeds,
              certificates,  declarations  and  other  documents  necessary   or
              desirable to effect such transfer in a timely fashion.

6.20 NON-ARM'S LENGTH TRANSACTIONS

     The  General  Partner may  retain  or employ  itself,  an Affiliate  of the
General Partner or any Person who does not deal at arm's length with the General
Partner on  behalf  of the  Partnership  to provide  goods  or services  to  the
Partnership or enter into any other transaction with itself, an Affiliate of the
General  Partner or any other Person who does  not deal at arm's length with the
General Partner  on behalf  of the  Partnership, provided  that such  retention,
employment or other transaction has been entered into in good faith and on terms
no  less favourable to the Partnership than  those that could been obtained in a
comparable transaction by the Partnership on an arm's length basis with a  third
party.

                                   ARTICLE 7
                  BOOKS AND RECORDS AND FINANCIAL INFORMATION

7.1 BOOKS OF ACCOUNT

     The  General Partner shall keep and maintain,  in the name and on behalf of
the Partnership, full, complete and accurate books of account and records of the
Partnership and the Business. The Partnership books shall be kept at the address
specified in Section  2.4. During  the existence of  the Partnership  and for  a
period  of six years thereafter, such books of account and records shall be made
available for  inspection  by the  Limited  Partners or  their  duly  authorized
representatives  during normal  business hours  at the  principal office  of the
General Partner.

7.2 FINANCIAL STATEMENTS

     The General  Partner shall  cause  to be  prepared  and delivered  to  each
Limited Partner:

     (a)  within  140 days  from the  end of each  Fiscal Year  (or such shorter
          period as  may be  required of  reporting issuers  to provide  audited
          annual   financial   statements  to   shareholders   under  applicable
          securities laws), audited financial  statements as at  the end of  and
          for  such Fiscal  Year prepared in  accordance with  GAAP, including a
          balance sheet of the Partnership as of the end of such Fiscal Year,  a
          statement  of income or  loss of the Partnership  for such Fiscal Year
          and a statement of cash flows of the Partnership for such Fiscal Year;
          and

     (b)  within 60 days from the end of each fiscal quarter of the  Partnership
          (or  such shorter  period as may  be required of  reporting issuers to
          provide unaudited quarterly financial statements to shareholders under
          applicable securities laws), unaudited financial statements as at  the
          end  of and for such fiscal  quarter prepared in accordance with GAAP,
          including a balance  sheet of the  Partnership as of  the end of  such
          fiscal  quarter, a statement of income  or loss of the Partnership for
          such fiscal quarter and a statement  of cash flows of the  Partnership
          for such fiscal quarter.

7.3 INCOME TAX INFORMATION

     Within 90 days after the end of each Fiscal Year, the General Partner shall
forward  to each Limited Partner such information as is necessary to enable such
Limited Partner to file income tax returns  with respect to its income from  the
Partnership in respect of such Fiscal Year.

7.4 OTHER INFORMATION

     From  time to time and  upon the request of  a Limited Partner, the General
Partner shall forward  to such  Limited Partner such  information regarding  the
Partnership  as  is necessary  to enable  such Limited  Partner in  its opinion,
acting reasonably, to comply with  its filing, disclosure and other  obligations
under applicable laws, regulations, orders and policies.

7.5 INSPECTION OF DOCUMENTS

     The  General Partner shall keep a  copy of this Agreement, the Declaration,
the Register and any other document required by the Act at the address specified
in Section 2.4.

                                       D-62


                                   ARTICLE 8
                           DISSOLUTION OF PARTNERSHIP

8.1 EVENTS OF DISSOLUTION

     The Partnership  shall  be  dissolved  on the  earliest  to  occur  of  the
following events:

     (a)  the   bankruptcy,  passing  of  a   resolution  for  the  dissolution,
          liquidation or winding-up of, making of an assignment for the  benefit
          of  creditors  of or  appointment of  a trustee  or receiver  over the
          affairs of, the General Partner;

     (b)  the agreement of the Partners to dissolve the Partnership.

     Any such  dissolution will  be effective  on  the day  on which  the  event
occurred  giving rise to the dissolution but the Partnership shall not terminate
until its  assets  have been  distributed  in accordance  with  this  Agreement.
Notwithstanding any rule of law or equity to the contrary, the Partnership shall
not be dissolved except in accordance with this Agreement.

8.2 RECEIVER

     On  dissolution of  the Partnership, the  General Partner shall  act as the
receiver (the "RECEIVER") of  the Partnership. If the  General Partner shall  be
unable  or unwilling to act as the  Receiver, the Limited Partners shall appoint
the Receiver.

8.3 LIQUIDATION OF ASSETS

     The Receiver shall prepare or cause to be prepared a statement of financial
position of the Partnership  and shall forward such  statement to the  Partners.
The  Receiver shall wind up  the affairs of the  Partnership and all property of
the Partnership shall  be liquidated in  an orderly manner.  The Receiver  shall
manage  and operate the Partnership and shall  have all the powers and authority
of the General  Partner under  this Agreement. The  Receiver shall  be paid  its
reasonable fees and disbursements incurred in carrying out its duties as such.

8.4 DISTRIBUTION OF PROCEEDS OF LIQUIDATION

     The  Receiver shall  distribute the  net proceeds  from liquidation  of the
Partnership as follows:

     (a)  first,  to  pay  the  expenses  of  liquidation  and  the  debts   and
          liabilities  of  the  Partnership  to its  creditors  or  to  make due
          provision for payment thereof;

     (b)  second, to provide  reserves which the  Receiver considers  reasonable
          and necessary for any contingent or unforeseen liability or obligation
          of  the Partnership which shall be paid  to an escrow agent to be held
          for payment of liabilities or obligations of the Partnership; and

     (c)  third, to the Partners  in proportion to the  number of Units held  by
          each Partner.

8.5 TERMINATION OF PARTNERSHIP

     The  Partnership shall terminate when all of  its assets have been sold and
the net proceeds therefrom, after payment of or due provision for the payment of
all debts, liabilities  and obligations  of the Partnership  to creditors,  have
been distributed as provided in this Article 8.

                                   ARTICLE 9
                               TRANSFER OF UNITS

9.1 TRANSFER OF UNITS BY LIMITED PARTNERS

     The Limited Partners shall not transfer all or any of their Units except in
compliance with this Article 9.

9.2 TRANSFER OF UNITS BY GENERAL PARTNER

     Except as permitted by Section 6.19, the General Partner shall not transfer
all or any of its Units.

                                       D-63


9.3 TRANSFERS TO AN AFFILIATE

     A  Limited  Partner or  any  Affiliate to  which  such Limited  Partner has
previously transferred Units pursuant to this Section 9.3 may, without complying
with Section 9.4 (but on  prior notice to the  General Partner), transfer to  an
Affiliate  all (but  not less  than all)  of its  Units, provided  the following
provisions are complied with:

     (a)  the transferee agrees in  writing be bound by  the provisions of  this
          Agreement as a Limited Partner;

     (b)  the  transferee is not a "non-resident"  of Canada for the purposes of
          the Tax  Act, a  "non-Canadian"  for the  purposes of  the  Investment
          Canada  Act (Canada) or a "financial  institution" for the purposes of
          sections 142.2 to 142.6 of the Tax Act;

     (c)  the transferor shall not  be relieved of  any obligation or  liability
          under this Agreement as a result of the transfer; and

     (d)  the  transferor  and  the  transferee agree  in  writing  that  if the
          transferee ceases to  be an  Affiliate of the  transferor during  such
          time  as the  transferee continues to  hold any  Units, the transferee
          shall reassign  and  retransfer to  the  transferor (or  an  Affiliate
          thereof  provided such Affiliate complies  with the provisions of this
          Section) the Units which were  originally assigned and transferred  to
          it.

9.4 RIGHT OF FIRST OFFER

     (a)  In  the event that any Limited Partner  desires to transfer all or any
          number of the Units  owned by it (the  "Selling Limited Partner"),  it
          shall  first make  an offer  in writing  (the "OFFER")  to the General
          Partner to transfer such  Units (the "OFFERED  UNITS") to the  General
          Partner.  Such offer shall specify the number of Offered Units and the
          price per Unit  (the "OFFER  PRICE") at  which the  Offered Units  are
          offered,  and specifying a date  which shall not be  less than 30 days
          nor more  than  120 days  following  the Acceptance  Date  hereinafter
          referred  to,  for closing  of the  purchase and  sale of  the Offered
          Units. The General Partner may accept  the Offer with respect to  all,
          but  not  less than  all, of  the  Offered Units  by giving  a written
          acceptance to the  Selling Limited  Partner within 30  days after  the
          General  Partner's receipt of  the Offer (the  date of such acceptance
          being the "ACCEPTANCE DATE"). In the event that no such acceptance  is
          received  by  the Selling  Limited  Partner from  the  General Partner
          within such 30-day  period, the  Offer shall  be deemed  to have  been
          refused. If all the Offered Units are accepted by the General Partner,
          then  the  Offer  together  with such  acceptance  shall  constitute a
          binding agreement of purchase and sale between the General Partner and
          the Selling Limited Partner.

     (b)  If the General Partner  does not accept all  the Offered Units or  the
          Offer is deemed to have been refused, then the Selling Limited Partner
          may transfer, at any time up to 120 days following the last day of the
          30-day  period  in which  the Offer  could have  been accepted  by the
          General Partner, all but not less than all, of the Offered Units to  a
          third  party for cash consideration at a  price per Unit not less than
          the Offer Price and  on other terms not  more favourable to the  third
          party  than the terms at  which the Offered Units  were offered to the
          General Partner (including the provisions of this Article 9 that would
          apply to the purchase  of the Offered Units  by the General  Partner),
          provided  that no Units may be transferred to a third party unless and
          until the third party enters into  an agreement, in form and on  terms
          satisfactory  to the General Partner,  acting reasonably, prior to the
          expiration of the 120-day period, by  which the third party agrees  to
          be bound by the provisions of this Agreement in the same manner as the
          Selling  Limited Partner. If no such transfer to a third party is made
          by the Selling Limited Partner within such 120-day period, the Selling
          Limited Partner  shall be  required,  before transferring  any  Units,
          again  to offer such Units  as provided in this  Section 9.4, and such
          process shall  be repeated  so often  as the  Selling Limited  Partner
          desires to transfer any Units.

9.5 CLEAN-UP OPTION

     (a)  If at any time any Limited Partner holds 1% or less of the outstanding
          Units  the General Partner  shall have the right  to purchase all (but
          not less than  all) of the  Units held  by such Limited  Partner at  a
          price  equal to the Fair Market Value of such Units at the time of the
          exercise of such right.

     (b)  The General Partner  may exercise its  rights in this  Section 9.5  by
          delivering  a written notice  to the relevant  Limited Partner stating
          that it  is exercising  its right  pursuant to  this Section  9.5  and
          specifying

                                       D-64


          the  closing date for the purchase  and sale of such Limited Partner's
          Units which date shall not be less than 30 days nor more than 120 days
          following the date of such notice.

9.6 TAG-ALONG RIGHT

     (a)  In the event the General Partner proposes to transfer all of its Units
          to another Person that is not  an Affiliate of the General Partner  (a
          "THIRD  PARTY  PURCHASER")  in accordance  with  Section  6.19(a), the
          General  Partner  may  complete  such  transfer  to  the  Third  Party
          Purchaser  only  if  the Third  Party  Purchaser extends  an  offer (a
          "TAG-ALONG OFFER")  to  all  Limited  Partners  so  that  the  Limited
          Partners  shall have the option to sell all (but not less than all) of
          their Units to the Third Party Purchaser on the same terms  (including
          the  same  covenants,  representations,  warranties,  indemnities  and
          consideration per  Unit) and  conditions as  those applicable  to  the
          General Partner.

     (b)  The General Partner shall forthwith give notice (a "TAG-ALONG NOTICE")
          to  the Limited Partners  of any proposed transfer  to the Third Party
          Purchaser of  its Units,  which notice  shall set  out, in  reasonable
          detail,  (i)  information regarding  the identity  of the  Third Party
          Purchaser, (ii) a description  of the rights  of the Limited  Partners
          pursuant  to this  Section 9.6 and  (iii) the  Tag-Along Expiry Period
          hereinafter referred to,  and shall  contain an offer  from the  Third
          Party  Purchaser to purchase all of the Limited Partners' Units on the
          same terms (including the same covenants, representations, warranties,
          indemnities and  consideration  per  Unit)  and  conditions  as  those
          applicable  to the  General Partner.  The offer  from the  Third Party
          Purchaser shall be irrevocable and shall be open for acceptance by the
          Limited Partners for a period not less than 20 days after the date  on
          which the Tag-Along Notice is given (the "TAG-ALONG EXPIRY PERIOD") to
          the Limited Partners.

     (c)  A Limited Partner may irrevocably accept the Tag-Along Offer by giving
          notice  to the  General Partner prior  to the expiry  of the Tag-Along
          Expiry Period, in which case  such Limited Partner shall be  obligated
          to  sell to the Third Party Purchaser all of its Units. The closing of
          such sale shall be conditional on the closing of the transfer of Units
          by the General Partner.

     (d)  If a  Limited  Partner does  not  exercise  its right  to  accept  the
          Tag-Along  Offer  by  delivering the  notice  contemplated  by Section
          9.6(c), the General Partner shall be entitled to transfer its Units to
          the Third  Party Purchaser  on  the terms  set  out in  the  Tag-Along
          Notice,  provided that no Units may  be transferred to the Third Party
          Purchaser unless and until  the Third Party  Purchaser enters into  an
          agreement  in form and on terms  satisfactory to the Limited Partners,
          acting reasonably, by  which the  Third Party Purchaser  agrees to  be
          bound  by the provisions of  this Agreement in the  same manner as the
          General Partner. If no such transfer  to the Third Party Purchaser  is
          made  by the  General Partner  on the terms  set out  in the Tag-Along
          Notice, the General Partner shall be required, before transferring its
          Units, again to comply with this  Section 9.6, and such process  shall
          be  repeated so often  as the General Partner  desires to transfer its
          Units.

9.7 DRAG-ALONG RIGHT

     If a Limited  Partner does  not exercise  its right  to sell  its Units  by
delivering  the notice contemplated by Section  9.6(c), the General Partner may,
by giving notice to such Limited Partner within 10 days following the expiry  of
the  Tag-Along Expiry Period, require such Limited  Partner to sell all (but not
less than all) of its Units to the Third Party Purchaser at the same time and on
the same  terms  (including  the same  covenants,  representations,  warranties,
indemnities  and consideration per  Unit) and conditions  as those applicable to
the General Partner.

9.8 GENERAL PROVISIONS RELATING TO CERTAIN TRANSFERS

     (a)  In this Section 9.8, the term "PURCHASED UNITS" means any Units to  be
          purchased  by the General  Partner from a  Limited Partner pursuant to
          Sections 9.4 and  9.5. The  closing of the  purchase and  sale of  the
          Purchased  Units shall, in the absence of a contrary agreement between
          the General Partner  and the  relevant Limited Partner,  occur at  the
          Partnership's principal place of business at 11:00 a.m. (Toronto time)
          on  the date specified in the relevant notice or such later date as is
          agreed by the General  Partner and such Limited  Partner in the  event
          that Fair Market Value is not determined prior to such specified date.
          Such  date and time are  referred to as the  "DATE OF CLOSING" and the
          "TIME OF CLOSING", respectively

                                       D-65


     (b)  At the Time of Closing on the Date of Closing:

        (i)   the General Partner shall pay to the relevant Limited Partner  the
              aggregate  purchase price  (the "PURCHASE PRICE")  payable for the
              Purchased Units  by delivery  of,  at the  option of  the  General
              Partner,  either (A) a  bank draft or certified  cheque drawn on a
              Canadian chartered  bank in  respect of  the Purchase  Price,  (B)
              provided  the common shares  of the General  Partner are listed on
              the Toronto Stock Exchange,  such number of  common shares of  the
              General  Partner as is equal to  the Purchase Price divided by the
              volume weighted  average  trading  price of  such  shares  on  the
              Toronto  Stock Exchange during the 10-trading day period ending on
              the second trading day preceding the Date of Closing registered in
              the name of  such Limited Partner  (or such other  name as may  be
              directed by such Limited Partner), or (C) a combination thereof;

        (ii)  if  any common shares of the  General Partner are delivered by the
              General Partner pursuant to Section 9.8(b)(i), the General Partner
              shall provide a favourable opinion of its legal counsel, in a form
              satisfactory to  the relevant  Limited  Partner and  its  counsel,
              acting  reasonably, with  respect to  the issuance  of such common
              shares; and

        (iii) the relevant Limited Partner shall deliver to the General Partner:
              (A) a receipt  for payment of  the Purchase Price;  (B) a  written
              warranty  from such Limited Partner that: (I) such Limited Partner
              is the  sole beneficial  owner of  the Purchased  Units, free  and
              clear  of all liens, charges, pledges, security interests, adverse
              claims or other encumbrances; and (II) there are no contractual or
              other restrictions on  the transfer of  the Purchased Units  which
              have  not  been complied  with; and  (C)  any deeds  and documents
              necessary to give effect to the transfer of the Purchased Units.

     (c)  If the relevant Limited Partner is not present at the Time of  Closing
          or  is present  but fails  for any  reason to  deliver to  the General
          Partner the documents referred to in Section 9.8(b)(iii), the  General
          Partner  may deposit  the Purchase Price  into a special  account at a
          branch of the Partnership's banker in  the joint names of the  General
          Partner  and such Limited Partner. Forthwith  after the making of such
          deposit, the General  Partner shall give  such Limited Partner  notice
          thereof, which notice shall specify the date of such deposit, the name
          and  address of the institution at which such deposit was made and the
          account number.  Such  deposit  shall  constitute  valid  payment  and
          satisfaction  of the Purchase  Price even though  such Limited Partner
          may have voluntarily encumbered  or disposed of  any of the  Purchased
          Units   and  notwithstanding   the  fact  that   the  certificates  or
          instruments representing the Purchased  Units may have been  delivered
          to  any pledgee, transferee or other  Person and the Register shall be
          updated by  the  General  Partner  to  reflect  the  transfer  of  the
          Purchased Units from such Limited Partner to the General Partner. Upon
          presentation  by such  Limited Partner to  the General  Partner of the
          documents  required  to  be  delivered  by  it  pursuant  to   Section
          9.8(b)(iii),  such Limited  Partner shall be  entitled to  be paid the
          moneys and/or  shares  so  deposited with  the  Partnership's  banker,
          without interest.

                                   ARTICLE 10
                                 MISCELLANEOUS

10.1 FAIR MARKET VALUE

     For  the  purposes  of  this  Agreement, the  "FAIR  MARKET  VALUE"  of the
Partnership, any Units or any other property  shall be the fair market value  of
the  Partnership, such Units or such other property as determined by the General
Partner and the Limited Partners, each acting reasonably. If the General Partner
and the Limited Partners cannot agree on the determination of Fair Market  Value
within 10 days of the date on which the General Partner and the Limited Partners
commence  discussions  as  to  the  determination  of  Fair  Market  Value,  the
determination of Fair  Market Value shall  be submitted to  the Chief  Executive
Officer  of the General Partner and the  Chief Financial Officer of each Limited
Partner who shall, in good faith, attempt to agree on the determination of  Fair
Market  Value within 10 days of such  submission. If the Chief Executive Officer
of the General Partner and the  Chief Financial Officer of each Limited  Partner
do  not  agree on  the determination  of  Fair Market  Value within  such 10-day
period, the General Partner  and the Limited Partners  shall appoint a  mutually
acceptable  accounting firm  or investment banking  firm that  is independent of
each of the General Partner and the Limited Partners (an "INDEPENDENT VALUATOR")
to determine  Fair Market  Value as  promptly as  practicable and  in any  event
within  20  days  after  such appointment.  The  Independent  Valuator  shall be
instructed to provide the General Partner and the Limited Partners with full and
open access to the  working papers and determinations  made and prepared by  the
                                       D-66


Independent  Valuator.  The fees  of such  Independent  Valuator shall  be borne
equally by the General Partner and the Limited Partners.

10.2 CONFIDENTIALITY

     Each  of  the  Partners  covenants  and  agrees  to  keep  all  information
pertaining to or concerning the Partnership, the Business and the other Partner,
including without limitation any and all patient records, reports or information
produced  as a result of  the Business (the "PATIENT  RECORDS") in the strictest
confidence, both while such Person is a Partner and after such Person ceases  to
be a Partner, and not to disclose at any time hereafter, any such information to
any third party, provided that no Partner shall be obliged to keep in confidence
or shall incur any liability for disclosure of information which:

     (a)  was  already  in the  public domain  or comes  into the  public domain
          without any breach of this Agreement;

     (b)  is required to be disclosed pursuant to applicable laws;

     (c)  is required to be disclosed in any arbitration or legal proceeding; or

     (d)  was disclosed to such  Partner by a  third party who  was not, to  the
          knowledge  of  such Partner,  bound by  a confidentiality  covenant or
          obligation.

     Notwithstanding the  foregoing, if  a Partner  receives access  to  Patient
Records  in  connection with  this Agreement,  it shall  be responsible  for the
maintenance of patient confidentiality. Each  Partner shall adopt procedures  to
prevent the disclosure of business records, including without limitation Patient
Records,  to unrelated third  parties and shall comply  in all material respects
with applicable laws relating to the records of the Business.

10.3 NOTICES

     Any notice  or  other  communication  required or  permitted  to  be  given
hereunder  shall be in writing  and shall be sufficiently  given if delivered in
person, transmitted by telecopy or sent by registered mail, postage prepaid,  as
follows:

     (a)  if to the General Partner:

        2385 Meadowpine Blvd.
        Mississauga, ON L5N 8H9

        Attention: Chief Executive Officer
        Fax No.: 905.286.6300

     (b)  if  to any  Limited Partner,  to the address  and fax  number for such
          Limited Partner as specified in the Register.

     Any such notice or other communication  shall be deemed to have been  given
and  received on the day  on which it was delivered  or transmitted (or, if such
day is not a Business Day, on the next following Business Day) or, if mailed, on
the third Business Day after the date  of mailing; provided, however, if at  the
time  of mailing or within  three Business Days thereafter  there is or occurs a
labour dispute or other event which might reasonably be expected to disrupt  the
delivery  of documents by mail, any such  notice or other communication shall be
delivered or transmitted by  telecopy. A Partner may  change its address or  fax
number for such purposes by giving written notice to the other Partners.

10.4 FURTHER ASSURANCES

     Each  Partner shall promptly execute and deliver all such further documents
and do all such  other acts and  things as the other  Partners may request  from
time  to  time  to  give effect  fully  to  the provisions  and  intent  of this
Agreement.

10.5 LIMITED PARTNER NOT A GENERAL PARTNER

     If any  provision of  this Agreement  has  the effect  of imposing  upon  a
Limited Partner any of the liabilities or obligations of a general partner under
the Act, such provision shall be of no force and effect.

                                       D-67


10.6 GOVERNING LAW

     This  Agreement  shall  be  governed  by  and  interpreted  exclusively  in
accordance with the  laws of  the Province  of Ontario  and the  laws of  Canada
applicable therein.

10.7 SEVERABILITY

     In the event that one or more of the provisions contained in this Agreement
shall  be invalid, illegal or unenforceable  in any respect under any applicable
law, the validity, legality or enforceability of the remaining provisions hereof
shall not  be affected  or impaired  thereby.  Each of  the provisions  of  this
Agreement is hereby declared to be separate, severable and distinct.

10.8 COUNTERPARTS

     This  Agreement may  be executed  by multiple  counterparts, each  of which
shall be deemed to be an original  and all of which shall be construed  together
as one agreement.

     IN WITNESS WHEREOF the parties have executed this Agreement.

                                         HEMOSOL CORP.

                                         by
                                         ---------------------------------------
                                         Name:
                                         Title:

                                         HEMOSOL INC.

                                         by
                                         ---------------------------------------
                                         Name:
                                         Title:

                                       D-68


                                   EXHIBIT 6
                                  LABS ASSETS

     The  Labs Assets  include all assets  located in the  Labs Leased Locations
other than those denoted with a "*", including, for greater certainty:

     -  inventory

     -  fixed assets

     -  machinery

     -  vehicles

     -  fixtures

     -  tools

     -  furniture

     -  office equipment

     -  prepaid expenses

     -  books, records, accounts, lists of customers and suppliers, and reports

     -  transferable licences issued to  MDS and related  to the Labs  Business,
        including  any permit,  approval, or  privilege created  by a government
        authority,

but, excluding, for greater certainty, intellectual property of MDS and accounts
receivables as at the Effective Time.

                                       D-69


                                   EXHIBIT 7
                               LABS LP AGREEMENT

                         MDS LABORATORY SERVICES, L.P.

                         LIMITED PARTNERSHIP AGREEMENT

                                    --   , 2004
                                       D-70


     THIS LIMITED PARTNERSHIP  AGREEMENT is  made     --    ,  2004 between  MDS
LABORATORY  SERVICES INC., a corporation existing  under the laws of Canada with
its head office at  100 International Boulevard, Toronto,  Ontario, M9W 6J6,  as
general  partner, MDS INC., a corporation existing under the laws of Canada with
its head office at  100 International Boulevard, Toronto,  Ontario, M9W 6J6,  as
initial limited partner, and each person who is admitted to the Partnership as a
limited partner in accordance with the terms hereof.

     WHEREAS the Partners (as herein defined) wish to form a limited partnership
for  the purpose of operating a clinical  laboratory business in Ontario for the
benefit of the Partners;

     WHEREAS this Agreement  is being entered  into to set  forth the terms  and
conditions  applicable to the relationship among the Partners and to the conduct
of the business of the Partnership;

     NOW THEREFORE, in consideration of  the covenants and agreements  contained
in this Agreement, the parties agree as follows:

                                   ARTICLE 1
                                 INTERPRETATION

1.1 DEFINITIONS

     In  this Agreement,  unless the  context otherwise  requires, the following
terms shall have the following meanings:

    "AFFILIATE" has the  meaning ascribed thereto  in the Business  Corporations
    Act (Ontario);

    "AGREEMENT" means this limited partnership agreement, as it may from time to
    time be supplemented, amended or restated;

    "AUDITOR"  means Ernst & Young LLP or  such other member in good standing of
    the Canadian Institute of  Chartered Accountants which  is appointed by  the
    General Partner as the auditor of the Partnership;

    "BUSINESS" has the meaning specified in Section 2.3 of this Agreement;

    "DECLARATION" means the declaration filed under the Limited Partnerships Act
    in  respect of the Partnership and  all declarations of change or amendments
    thereto and renewals thereof;

    "EFFECTIVE DATE" means  the date on  which the arrangement  of Hemosol  Inc.
    involving  its shareholders and MDS becomes  effective as established by the
    date of issue  shown on the  certificate of arrangement  issued pursuant  to
    section 183 of the Business Corporations Act (Ontario);

    "FISCAL  YEAR"  has  the meaning  ascribed  to  it in  Section  2.6  of this
    Agreement;

    "GENERAL PARTNER" means the  general partner of  the Partnership, the  first
    general  partner being MDS  LABORATORY SERVICES INC., and  any Person who is
    admitted to the Partnership as a successor to MDS Laboratory Services Inc.;

    "INITIAL LIMITED PARTNER" means MDS;

    "INITIAL TERM"  has the  meaning ascribed  thereto in  Section 8.1  of  this
    Agreement;

    "LICENSING   ACT"  means  the  Laboratory  and  Specimen  Collection  Centre
    Licensing Act (Ontario);

    "LIMITED PARTNER" means the Initial Limited  Partner and each Person who  is
    accepted  as and becomes a limited  partner of the Partnership in accordance
    with the terms and conditions of this Agreement;

    "LIMITED PARTNERSHIPS ACT" means the Limited Partnerships Act (Ontario);

    "LOSSES" has the meaning ascribed thereto in Section 4.4 of this Agreement;

    "MANAGEMENT AGREEMENT" has the meaning ascribed to it in Section 3.5 of this
    Agreement;

    "MDS" means MDS INC.;

                                       D-71


    "NET INCOME" means the  income of the Partnership  in any given Fiscal  Year
    less  any expenses of the Partnership determined in accordance with Canadian
    generally accepted accounting principles;

    "NET LOSSES" means  the net losses  of the Partnership  in any given  Fiscal
    Year  determined in  accordance with Canadian  generally accepted accounting
    principles;

    "ORDINARY RESOLUTION" means (i)  any resolution passed at  a meeting of  the
    Limited  Partners by the  affirmative vote of  a majority of  the votes cast
    thereon, or (ii) any written  resolution signed by Limited Partners  holding
    more than 50% of the Units;

    "PARTNERS"  means the Limited Partners and the General Partner and "PARTNER"
    means any one of them;

    "PARTNERSHIP" means the limited  partnership formed upon  the filing of  the
    Declaration and initially known as MDS Laboratory Services, L.P.;

    "PARTNERSHIP  ASSETS" means all  property and assets of  any nature and kind
    and wheresoever  situate owned  by the  Partnership or  in or  to which  the
    Partnership has an interest or right;

    "PATIENT  RECORDS" has the meaning ascribed  thereto in Section 3.14 of this
    Agreement;

    "PERSON" means  any  individual,  sole  proprietorship,  partnership,  joint
    venture, unincorporated association, unincorporated syndicate,
    unincorporated  organization, trust, body corporate  and a natural person in
    his  capacity  as  a  trustee,   executor,  administrator  or  other   legal
    representative;

    "PERSONNEL"  has  the  meaning  ascribed  thereto  in  Section  3.2  of this
    Agreement;

    "RECORD" has the meaning ascribed thereto in Section 5.6 of this Agreement;

    "SPECIAL RESOLUTION" means  (i) any resolution  passed at a  meeting of  the
    Limited  Partners by the affirmative vote of not less than two-thirds of the
    votes cast  thereon,  or  (ii)  any written  resolution  signed  by  Limited
    Partners holding more than 66 2/3 of the Units;

    "TAX ACT" means the Income Tax Act, (Canada);

    "TERM"  has the meaning  ascribed thereto in Section  8.1 of this Agreement;
    and

    "UNIT" has the meaning ascribed thereto in Section 5.1 of this Agreement.

1.2 INTERPRETATION

     For all purposes of this Agreement, except as otherwise expressly  provided
or unless the context otherwise requires:

     (a)  the  headings preceding the  text, articles and  paragraphs hereof are
          for convenience only and do not form a part of this Agreement and  are
          not intended to interpret, define or limit the scope, extent or intent
          of this Agreement or any provisions hereof;

     (b)  all  accounting terms not  otherwise defined herein  have the meanings
          assigned to  them  in  accordance  with  Canadian  generally  accepted
          accounting principles;

     (c)  all  references  to currency  herein are  deemed  to mean  currency of
          Canada;

     (d)  any reference to a statute shall include  and shall be deemed to be  a
          reference  to  such  statute  and  to  the  regulations  made pursuant
          thereto, with all amendments  made thereto and in  force from time  to
          time,  and to any statute  or regulation that may  be passed which has
          the effect of supplementing or superseding the statute so referred  to
          or the regulations made pursuant thereto;

     (e)  any   reference  to  an  entity   (including,  without  limitation,  a
          partnership) shall include and  shall be deemed to  be a reference  to
          any entity that is a successor of such entity;

     (f)  words  importing the masculine  gender include the  feminine or neuter
          gender and words in the singular include the plural and vice versa.

                                       D-72


                                   ARTICLE 2
                                THE PARTNERSHIP

2.1 FORMATION OF PARTNERSHIP

     The parties hereto  agree to form  a Partnership pursuant  to the terms  of
this Agreement and the Limited Partnerships Act.

2.2 NAME OF PARTNERSHIP

     The  name of the Partnership shall be  MDS Laboratory Services, L.P or such
other name as  the General Partner  may from  time to time  select. The  General
Partner  shall  notify  the  Limited  Partners of  any  change  in  name  of the
Partnership.

     If the General Partner resigns or is removed and is not replaced by MDS  or
an  Affiliate of MDS, the Partnership shall forthwith cease to use the name "MDS
Laboratory  Services,  L.P"  or  any  other  name  which  includes  "MDS".   The
Partnership  shall amend this Agreement and  execute and deliver all instruments
and documents necessary to evidence the  change of name in each public  registry
where  the name of the Partnership shall  have been reported and to disclaim any
rights, title or interest in  or to the name  "MDS Laboratory Services, L.P"  or
any other name which includes "MDS".

2.3 BUSINESS OF PARTNERSHIP

     The Partnership shall operate a clinical laboratory business in Ontario and
may  exercise all powers ancillary and  incidental thereto (the "BUSINESS"). The
Partnership shall not carry  on any business other  than the Business and  shall
not carry on business outside of the Province of Ontario.

2.4 PRINCIPAL OFFICE

     The   principal  office  of  the  Partnership   shall  be  located  at  100
International Boulevard, Toronto, Ontario M9W 6J6, or such other address as  the
General Partner may designate from time to time by written notice to the Limited
Partners  after  filing an  amendment to  the Declaration  with respect  to such
change.

2.5 FILING OF DECLARATIONS

     (a)  As soon as practicable following the execution of this Agreement,  the
          General   Partner  shall   cause  to   be  executed   and  filed  such
          declarations, instruments and documents as  may be required under  the
          laws of Ontario.

     (b)  The  General Partner shall take all  necessary actions to maintain the
          status of the Partnership as a limited partnership in Ontario.

     (c)  Each Limited Partner shall promptly execute all certificates and other
          documents consistent with  the terms  of this  Agreement necessary  to
          comply  with the requirements  for the formation  and operation of the
          limited partnership under the laws of Ontario.

     (d)  As soon as practicable  following the Effective Date  but in no  event
          later than the 75th day thereafter, the General Partner shall cause to
          be  executed  and filed  with the  U.S.  Internal Revenue  Service, on
          behalf of the Partnership, an  Entity Classification Election on  Form
          8832  to  be  treated  solely  for U.S.  income  tax  purposes,  as an
          association taxable as a corporation.  Such election shall state  that
          it  is effective on the Effective Date. The General Partner shall take
          all steps necessary  to file such  election in a  timely and  complete
          manner.  Each person that is a Partner on the date such election is to
          become effective  shall,  promptly upon  the  request of  the  General
          Partner, execute such Form 8832.

2.6 FISCAL YEAR

     The fiscal year of the Partnership (the "FISCAL YEAR") shall end on October
31st  of  each  year. The  first  fiscal year  shall  end on  October  31, 2004.
Thereafter, each Fiscal Year shall begin on  November 1 of each year and end  on
October 31st of the following year.

                                       D-73


                                   ARTICLE 3
                                  THE PARTNERS

3.1 GENERAL POWERS OF THE GENERAL PARTNER

     The  General Partner  has all  of the rights,  powers and  obligations of a
general partner under the Limited  Partnerships Act and the exclusive  authority
to  manage  and  control the  Business  and do  or  cause  to be  done  all acts
necessary, appropriate or incidental to the Business, including but not  limited
to:

     (a)  approving all capital budgets;

     (b)  approving the annual budget and strategic plan for the Partnership and
          any material amendments and supplements thereto;

     (c)  making  overall policy and  operational decisions with  respect to the
          Business and affairs of the Partnership;

     (d)  entering into agreements with respect to the Business;

     (e)  arranging for the  payment of  the costs  and expenditures  reasonably
          incurred by the Partnership;

     (f)  selecting  and determining the compensation  of the management team of
          the Business;

     (g)  opening and managing bank accounts in the name of the Partnership  and
          spending  the capital of the Partnership  in the exercise of any right
          or power exercisable by the General Partner hereunder;

     (h)  borrowing funds in the name of the Partnership from time to time  from
          the  General  Partner  or  an  Affiliate  thereof  or  any  recognized
          financial institution selected by the General Partner;

     (i)   investing cash assets  of the  Partnership that  are not  immediately
           required for the Business in short term investments;

     (j)   acting  as attorney in fact or agent of the Partnership in disbursing
           and  collecting  moneys  for   the  Partnership,  paying  debts   and
           fulfilling  the  obligations  of  the  Partnership  and  handling and
           settling any claims of the Partnership;

     (k)  retaining the services of lawyers,  experts and any other  consultants
          as  the General Partner considers appropriate and as required to carry
          out its obligations to the  Partnership, including but not limited  to
          market  consultants, leasing agents,  advertising and public relations
          agents;

     (l)   authorizing any Partner  to act for  or to assume  any obligation  or
           responsibility on behalf of the Partnership;

     (m) making  any change  in accounting  principles used  by the Partnership,
         except to the extent required by Canadian generally accepted accounting
         principles;

     (n)  commencing, defending, adjusting and abandoning any actions, suits  or
          legal  proceedings in connection with  the Partnership and, subject to
          the approval of the Limited Partners, consenting to a judgment against
          the Partnership;

     (o)  preparing and  filing  returns  or other  documents  required  by  any
          governmental  or like  authority, including  any tax  elections of the
          Partnership;

     (p)  deciding in its sole discretion when distributions of the  Partnership
          shall be made and the type and amount of such distributions;

     (q)  obtaining  any insurance coverage it considers advisable in connection
          with the affairs of the Partnership; and

     (r)  doing all other acts and executing all other documents or  instruments
          as may be necessary or desirable in the opinion of the General Partner
          to carry out the intent and purposes of this Agreement.

                                       D-74


3.2 DUTIES OF THE GENERAL PARTNER

     The General Partner shall:

     (a)  provide,  or arrange for the provision of, personnel (the "PERSONNEL")
          who are properly  skilled and  trained, supervised  and sufficient  in
          number   to  operate  and  manage   the  Business,  including  without
          limitation:

        (i)   Personnel required to  staff all of  the Partnership's  laboratory
              locations  in Ontario including all  core labs and patient service
              centres;

        (ii)  Personnel required to staff the Partnership's courier service; and

        (iii) medical Personnel required to support the Business;

     (b)  arrange for oversight of  all relevant activities  of the Business  by
          appropriate medical professionals; and

     (c)  ensure  that the Business is operated in accordance with the standards
          required by government  authorities and that  the Partnership has  all
          necessary  permits  and licenses,  including without  limitation those
          required by the Licensing Act.

     The powers, duties and obligations  of the General Partner hereunder  shall
be  fulfilled by the General Partner in its  capacity as a partner and agent for
the Partnership.

3.3 QUALIFICATIONS AND RESPONSIBILITY FOR PERSONNEL

     All Personnel shall have reasonable expertise in the Business having regard
to their employment duties. The General Partner shall ensure that the  Personnel
are  appropriately qualified and devote the  necessary time and attention to the
affairs of the Partnership.

3.4 DELEGATION BY THE GENERAL PARTNER OR PARTNERSHIP

     The General Partner  may contract on  behalf of itself  or the  Partnership
with  any Person to carry out  any of the duties of  the General Partner and may
delegate to  such  Person  any  power  and  authority  of  the  General  Partner
hereunder,  subject to  the overall  supervision of  such Person  by the General
Partner. No such contract or delegation shall relieve the General Partner of any
of its obligations hereunder.  For greater certainty,  subject to Section  3.21,
the  General Partner  may retain  Affiliates of  MDS or  the General  Partner on
behalf of the Partnership to provide goods or services to the Partnership.

3.5 MANAGEMENT AGREEMENT

     Subject to  Section 3.21,  the Partnership  shall enter  into a  management
agreement  with MDS (the "MANAGEMENT AGREEMENT")  on the Effective Date pursuant
to which  MDS  will provide  to  the  Partnership certain  support  services  in
accordance  with the terms thereof. MDS will be entitled to receive fees for the
services it provides and  reimbursement for expenses it  incurs pursuant to  the
Management  Agreement both  of which  shall be  payable from  the assets  of the
Partnership.

3.6 RELIANCE

     The General Partner may rely and act upon any statement, report or  opinion
prepared by, or any advice received from, the Auditor, legal counsel, experts or
other  professional advisors  of the  General Partner  or the  Partnership, and,
provided the  General  Partner  exercised  reasonable  care  in  selecting  such
advisors,  the General Partner shall  not be responsible or  held liable for any
loss or damage resulting from so relying or acting if the advice was within  the
area  of professional competence of the Person from whom it was received and the
General Partner acted in good faith and without negligence in relying thereon.

     The General  Partner shall  in no  way be  responsible for,  nor incur  any
liability  based on,  acting or  failing to  act pursuant  to or  in reliance on
instructions of the  Limited Partners so  long as the  General Partner acted  in
good faith and without negligence in following such instructions.

3.7 AUTHORITY OF THE GENERAL PARTNER

     No  Person dealing  with the  Partnership is  required to  enquire into the
authority of the  General Partner to  take any action,  execute any document  or
make any decision on behalf of, and in the name of, the Partnership.

                                       D-75


3.8 QUALIFICATIONS OF THE GENERAL PARTNER

     The General Partner represents, warrants and covenants that it:

     (a)  is  a body corporate,  duly incorporated under the  laws of Canada and
          that so long as it is the General Partner of the Partnership it  shall
          maintain its corporate existence;

     (b)  has the corporate capacity and authority to act as the General Partner
          and   to  perform  its  obligations   under  this  Agreement  and  its
          obligations herein do not conflict with or constitute a default  under
          its constating documents or any agreements by which it is bound;

     (c)  is  not a "non-resident" of Canada for  the purposes of the Tax Act, a
          "non-Canadian" for the purposes  of the Investment Canada  Act(Canada)
          or  a "financial  institution" for the  purposes of  sections 142.2 to
          142.6 of the Tax Act;

     (d)  has and shall continue to have  all licenses and permits necessary  to
          carry on its business as the General Partner of the Partnership in all
          jurisdictions  where  the activities  of  the General  Partner  or the
          Partnership require such  licensing or other  form of registration  of
          the General Partner.

3.9 DUTY OF CARE

     The  General Partner  shall exercise  its powers  and discharge  its duties
under this Agreement honestly, in  good faith and in  the best interests of  the
Partnership  and will  manage and  operate the  Partnership, its  assets and the
Business in  a  manner that  would  be  considered reasonable  and  prudent  for
managers  of like operations in Ontario. The standard of care that the Personnel
shall observe when  working on behalf  of the Partnership  under this  Agreement
shall  be no less than the degree  of care customarily exercised by personnel in
other clinical laboratories in Ontario generally.

3.10 QUALIFICATION OF THE LIMITED PARTNERS

     Each Limited Partner severally  represents, warrants, covenants and  agrees
with each other Partner that such Limited Partner:

     (a)  is  a  corporation  and is  valid  and subsisting  with  all necessary
          capacity and authority to  execute and deliver  this Agreement and  to
          observe  and perform its  covenants and obligations  hereunder and all
          necessary approvals have  been given  to authorize it  to execute  and
          deliver  this  Agreement and  to  take all  actions  required pursuant
          hereto;

     (b)  is not a "non-resident" of Canada for the purposes of the Tax Act or a
          "non-Canadian" for the purposes of the Investment Canada Act (Canada);

     (c)  is not a "financial institution" for the purposes of sections 142.2 to
          142.6 of the Tax Act";

     (d)  shall maintain the status referred to  in items (b) and (c) above,  at
          all times while a Limited Partner;

     (e)  shall  not knowingly  transfer its  Units in whole  or in  part to any
          Person which cannot represent and warrant  the facts set out in  items
          (a), (b) and (c) above; and

     (f)  has  not financed, and will not finance, its acquisition of Units with
          a borrowing or other indebtedness for  which recourse is or is  deemed
          to  be limited for the  purposes of section 143.2  of the Tax Act and,
          for the purpose of this representation, warranty and covenant, limited
          recourse indebtedness includes:

        (i)   indebtedness in respect  of which bona  fide written  arrangements
              were  not  made at  the time  the  indebtedness was  incurred, for
              repayment of all principal and interest within a reasonable period
              not exceeding 10 years;

        (ii)  indebtedness on which interest is not payable, at least  annually,
              at  a  rate  equal to  or  greater  than the  lesser  of  the rate
              prescribed under the Tax  Act at the  time the indebtedness  arose
              and  the  prescribed rate  that is  applicable  from time  to time
              during the term of the indebtedness; and

        (iii) indebtedness in respect of which such interest is not paid by  the
              debtor within 60 days of the end of the debtor's tax year.

                                       D-76


3.11 LIMITATIONS ON AUTHORITY OF LIMITED PARTNERS

     No  Limited Partner in its capacity as  a Limited Partner shall or shall be
entitled to:

     (a)  take part in the control or management of the Business;

     (b)  execute any document which binds  or purports to bind the  Partnership
          or any other Partner as such;

     (c)  have or purport to have the power or authority to bind the Partnership
          or any other Partner as such;

     (d)  have  or purport to have any  authority to undertake any obligation or
          responsibility on behalf of  the Partnership or  any other Partner  as
          such; or

     (e)  bring  any action for partition or  sale of or otherwise in connection
          with any interest in the Partnership Assets, or register, or permit to
          be filed or registered or remain undischarged, against the Partnership
          Assets any lien or charge in  respect of the interest of such  Partner
          in the Partnership.

3.12 COVENANTS OF LIMITED PARTNERS

     Each  Limited Partner  covenants and agrees  that it  will promptly provide
evidence to the General Partner upon request of its status under the Tax Act  or
any  similar statute  affecting the  status of the  Partnership or  of any other
matter which affects or may  from time to time  affect such status. The  General
Partner  may require those Limited Partners  who are non-residents of Canada for
the purposes of the Tax Act to sell  their Units to residents of Canada. In  the
event  that a Limited Partner  fails to comply with  such a request, the General
Partner shall have the right to sell such Limited Partner's Units or to purchase
the same  on  behalf of  the  Partnership at  fair  value as  determined  by  an
independent  third party  selected by  the General  Partner, whose determination
will be final and binding and not subject to review or appeal.

3.13 POWER OF ATTORNEY

     Each Limited Partner hereby nominates, constitutes and appoints the General
Partner as the Limited  Partner's true and lawful  attorney and agent with  full
power  of substitution and  authority, in the Limited  Partner's name, place and
stead to do the following, namely:

     (a)  make, execute, swear to, acknowledge,  deliver and record or file,  as
          the case may be, any of the following:

        (i)   this Agreement, the Declaration, all amendments to the Declaration
              and  all other  documents and  instruments required  to qualify or
              continue the  qualification  of the  Partnership  as a  valid  and
              subsisting  limited partnership in or otherwise to comply with the
              laws of any jurisdiction in which the Partnership may from time to
              time conduct its business;

        (ii)  all documents, certificates and  instruments necessary to  reflect
              any amendment to this Agreement;

        (iii) all  conveyances,  agreements and  other instruments  necessary or
              desirable to reflect, facilitate and implement the dissolution and
              termination of  the  Partnership  including  cancellation  of  any
              certificates or declarations;

        (iv) all   elections,  determinations,  agreements  or  designations  in
             connection with the  Business permitted or  required under the  Tax
             Act  or  any other  taxation or  other legislation  or law  of like
             import of Canada or of any provinces or jurisdictions in respect of
             a Limited Partner's interest in  the Partnership or the affairs  of
             the Partnership;

        (v)  documents  necessary to give effect to  the sale or assignment of a
             Unit or to give effect to the admission of a transferee of Units to
             the Partnership; and

        (vi) documents necessary to  file the  election referred  to in  Section
             2.5(d) hereof;

     (b)  execute and file with any governmental body or instrumentality thereof
          any   documents  necessary  to   be  filed  in   connection  with  the
          Partnership, the Business and the Partnership Assets; and

     (c)  execute and deliver all such documents or instruments on behalf of and
          in the  name of  the Partnership  and the  Limited Partner  as may  be
          deemed  necessary  by  the  General Partner  to  carry  out  fully the
          provisions of this Agreement in accordance with its terms.

     The power of  attorney granted  herein is  irrevocable and  subject to  the
provisions  of  any relevant  legislation, will  survive the  death, disability,
insolvency, incapacity  to manage  property  or other  legal incapacity  of  the
Limited

                                       D-77


Partner  and may be exercised  by the General Partner  on behalf of each Limited
Partner in  executing any  instrument by  listing all  of the  Limited  Partners
thereon  and executing such  instrument with a single  signature as attorney and
agent for  all  of  them.  Each  Limited Partner  agrees  to  be  bound  by  all
representations or actions made or taken by the General Partner pursuant to this
power  of attorney and hereby waives any and all defences which may be available
to contest, negate or disaffirm the action of the General Partner taken in  good
faith  under this power of attorney. The  power of attorney granted herein shall
continue in respect of the General Partner as long as it is the general  partner
of  the  Partnership and  shall  not revoke  or  terminate thereafter  but shall
continue in respect of a successor general  partner as if the successor was  the
original  attorney. The  power of  attorney granted  herein shall  not revoke or
terminate any general  continuing power  of attorney previously  granted by  the
Limited Partner and shall not be revoked or terminated by any general continuing
power of attorney hereinafter granted by the Limited Partner.

3.14 CONFIDENTIALITY

     Each  of  the  Partners  covenants  and  agrees  to  keep  all  information
pertaining to  or  concerning  the  Partnership,  the  Business  and  the  other
Partners,  including without limitation any and  all patient records, reports or
information produced  as a  result of  the laboratory  testing services  of  the
Partnership (the "PATIENT RECORDS") in the strictest confidence, both while such
Person  is a Partner  and after such Person  ceases to be a  Partner, and not to
disclose at  any  time hereafter,  any  such  information to  any  third  party,
provided  that no Partner shall be obliged  to keep in confidence or shall incur
any liability for disclosure of information which:

     (a)  was  already in  the public  domain or  comes into  the public  domain
without any breach of this Agreement;

     (b)  is required to be disclosed pursuant to applicable laws;

     (c)  is required to be disclosed in any arbitration or legal proceeding; or

     (d)   was disclosed to such Partner by a third party who was not bound by a
confidentiality covenant or obligation.

     Notwithstanding the  foregoing, if  a Partner  receives access  to  Patient
Records  in  connection with  this Agreement,  it shall  be responsible  for the
maintenance of patient confidentiality. Each  Partner shall adopt procedures  to
prevent the disclosure of business records, including without limitation Patient
Records,  to unrelated third  parties and shall comply  in all material respects
with applicable laws relating to the records of the Business.

3.15 PROPRIETARY METHODS

     The Partnership hereby agrees that all of the systems, methods, procedures,
written  materials  and  controls  employed  by  the  General  Partner  in   the
performance  of this  Agreement ("PROPRIETARY  INFORMATION") are  proprietary in
nature and shall  remain the property  of the General  Partner. The  Proprietary
Information  shall not at any time  be distributed, copied or otherwise acquired
by the Partnership, except to the extent such Proprietary Information is in  the
public  domain. The Partnership agrees that the  remedy at law for any breach of
covenants contained in this Section may be inadequate and would be difficult  to
ascertain  and therefore upon an event of  a breach or threatened breach of such
covenants, the General Partner,  in addition to any  other remedies, shall  have
the  right to enjoin the  Partnership from any threatened  or actual activity in
violation hereof. The Partnership hereby consents and agrees that a temporary or
permanent injunction may be granted in  any proceeding without the necessity  of
providing actual damages or posting a bond.

3.16 REMOVAL OF GENERAL PARTNER

     The Limited Partners may, at any time if the General Partner is in material
default  of its obligations under this  Agreement and such default has continued
for more than  60 days  after written  notice of such  default is  given to  the
General Partner, by Special Resolution, remove the General Partner and appoint a
new  general  partner  meeting  the  requirements  of  Section  3.20  who,  upon
acceptance, shall assume  all responsibilities and  obligations imposed upon  or
granted  to the  General Partner under  this Agreement. If  the Limited Partners
fail to appoint a successor general partner within 30 days of the removal of the
General Partner, the Partnership will be wound up in accordance with Article  8.
As  a condition precedent to the removal,  the Partnership shall pay all amounts
payable by the Partnership to the General Partner accrued to the date of removal
including for greater certainty amounts equal to the expenses and costs incurred
by the General Partner  in the performance of  its duties under this  Agreement,
whether or not allocated pursuant to Section 6.1.

                                       D-78


3.17 RESIGNATION OF THE GENERAL PARTNER

     The  General Partner may not assign its interest in the Partnership, except
to MDS or an Affiliate thereof, without  the consent of the Limited Partners  by
Special  Resolution. After the Initial Term has expired, the General Partner may
resign as general partner upon 120 days' notice to the Limited Partners. One  or
more  Limited Partners shall nominate a successor that meets the requirements of
Section 3.20 whose appointment shall be approved by Ordinary Resolution and  who
accepts  such position  in such period.  If prior  to the effective  date of the
General Partner's resignation a successor general partner is not appointed,  the
Partnership  shall wind up  in accordance with Article  8. The Partnership shall
pay all amounts payable by the Partnership to the General Partner accrued to the
date of  resignation  including  for  greater certainty  amounts  equal  to  the
expenses  and costs incurred  by the General  Partner in the  performance of its
duties under this Agreement, whether or not allocated pursuant to Section 6.1.

3.18 BANKRUPTCY OF GENERAL PARTNER

     The General Partner will be deemed to have resigned as General Partner upon
its  bankruptcy,  insolvency,  the  passing   of  a  resolution  requiring   its
dissolution  or winding-up, or in  the event of the  appointment of a trustee or
receiver of its affairs,  such resignation to be  effective upon the earlier  of
the  appointment of  a new General  Partner meeting the  requirements of Section
3.20 by the Limited Partners by  Ordinary Resolution and 180 days following  the
deemed resignation of the General Partner. The General Partner agrees to provide
notice  to the Limited Partners of the occurrence of any of the foregoing events
forthwith after the event's  occurrence. The Partnership  shall pay all  amounts
payable  by  the Partnership  to  the General  Partner  accrued to  the  date of
resignation.

3.19 TRANSFER TO A NEW GENERAL PARTNER

     On the  admission  of a  new  general partner  to  the Partnership  on  the
resignation  or removal of the General Partner, the resigning or removed General
Partner will, at the Partnership's expense, do all things and take all steps  to
transfer  the administration, management, control  and operation of the business
of the Partnership,  the assets of  the Partnership and  the books, records  and
accounts  of the  Partnership to  the new general  partner and  will execute and
deliver all deeds, certificates, declarations  and other documents necessary  or
desirable to effect such transfer in a timely fashion.

3.20 NEW GENERAL PARTNER

     A  new general  partner shall  not be  a "non-resident"  of Canada  for the
purposes of the  Tax Act, a  "non-Canadian" for the  purposes of the  Investment
Canada  Act (Canada),  a "financial  institution" for  the purposes  of sections
142.2 to  142.6 of  the Tax  Act and,  if a  partnership, shall  be a  "Canadian
partnership"  as defined  in the Tax  Act. A  new general partner  will become a
party to this Agreement  by signing a  counterpart hereof and  will agree to  be
bound  by all of the provisions hereof and to assume the obligations, duties and
liabilities of the General  Partner hereunder as from  the date the new  general
partner becomes a party to this Agreement.

3.21 NON-ARM'S LENGTH TRANSACTIONS

     The  General  Partner may  retain  or employ  itself,  an Affiliate  of the
General Partner or any Person who does not deal at arm's length with the General
Partner on  behalf  of the  Partnership  to provide  goods  or services  to  the
Partnership or enter into any other transaction with itself, an Affiliate of the
General  Partner or any other Person who does  not deal at arm's length with the
General Partner  on behalf  of the  Partnership, provided  that such  retention,
employment or other transaction has been entered into in good faith and on terms
no  less favourable to the Partnership than  those that could been obtained in a
comparable transaction by the Partnership on an arm's length basis with a  third
party.

                                   ARTICLE 4
                           LIABILITY AND INDEMNITIES

4.1 UNLIMITED LIABILITY OF GENERAL PARTNER

     The   General  Partner  shall  have  unlimited  liability  for  the  debts,
liabilities and obligations of the Partnership.

4.2 LIMITED LIABILITY OF LIMITED PARTNERS

     Subject to applicable law,  the liability of each  Limited Partner for  the
debts,  liabilities, obligations and losses of the Partnership is limited to the
capital contribution of  that Limited  Partner plus such  Limited Partner's  pro
rata
                                       D-79


share  of  the undistributed  net  income of  the  Partnership. Where  a Limited
Partner has received the return of all or part of its capital contribution, such
Limited Partner  is  nevertheless  liable  to  the  Partnership  or,  where  the
Partnership  is dissolved, to its creditors for any amount, not in excess of the
amount returned with  interest, necessary  to discharge the  liabilities of  the
Partnership to all creditors who extended credit or whose claims otherwise arose
before  the return of the contribution. Subject to the provisions of the Limited
Partnerships Act, a  Limited Partner  shall have  no further  liability for  any
debts,  liabilities, obligations or  losses of the Partnership  and shall not be
liable for any calls or assessments or further contributions to the Partnership.

4.3 LIMITATION OF LIABILITY OF GENERAL PARTNER

     Notwithstanding anything else contained in  this Agreement, but subject  to
compliance  with  Section 3.9,  neither the  General  Partner nor  its officers,
directors, shareholders,  employees or  agents are  liable, responsible  for  or
accountable  in damages or otherwise to the Partnership or a Limited Partner for
any action taken or failure to act on behalf of the Partnership believed by  the
General  Partner, acting  reasonably, to  be within  the scope  of the authority
conferred on the General Partner by this  Agreement or by law unless the act  or
omission  was performed or  omitted fraudulently or in  bad faith or constituted
willful misfeasance or gross negligence of the General Partner.

4.4 INDEMNITY OF LIMITED PARTNERS BY GENERAL PARTNER

     The General Partner shall indemnify and hold harmless each Limited  Partner
from  and  against  any and  all  actions, claims,  costs,  losses, liabilities,
damages or expenses  (including reasonable legal  fees) (collectively  "LOSSES")
suffered  or incurred  by a  Limited Partner  if the  liability of  such Limited
Partner is not limited in the manner provided for in this Agreement by reason of
the acts or omissions of the  General Partner performed or omitted  fraudulently
or  in bad faith or attributable to  the willful misfeasance or gross negligence
of the General Partner, unless the liability  of such Limited Partner is not  so
limited  as a result  of or arising out  of any act or  omission of such Limited
Partner.

4.5 INDEMNITY OF PARTNERSHIP BY GENERAL PARTNER

     The General Partner shall indemnify and hold harmless the Partnership  from
and against any and all Losses suffered or incurred by the Partnership by reason
of   the  acts  or  omissions  of  the  General  Partner  performed  or  omitted
fraudulently or in bad faith or attributable to the gross negligence or  willful
misfeasance of the General Partner.

4.6 INDEMNITY OF GENERAL PARTNER BY PARTNERSHIP

     The Partnership shall indemnify and hold the General Partner (including any
General  Partner that has  resigned or been removed  in accordance with Sections
3.16, 3.17 and 3.18) harmless  from and against any  and all Losses suffered  or
incurred   by  the  General  Partner,  its  officers,  directors,  shareholders,
employees or agents resulting from or arising out of any act or omission of  the
General  Partner on behalf of the Partnership or in furtherance of the Business;
provided, however, the Partnership shall only  be required to indemnify or  hold
the General Partner harmless from and against any act or omission of the General
Partner  which were  believed by the  General Partner, acting  reasonably, to be
within the  scope of  the authority  conferred by  this Agreement  and were  not
performed  or omitted fraudulently or  in bad faith and  are not attributable to
the willful  misfeasance  or  gross  negligence of  the  General  Partner.  Such
indemnification  obligation shall  be made  from the  Partnership Assets  and no
Limited Partner shall  be personally liable  to the General  Partner in  respect
thereof.

                                   ARTICLE 5
                          UNITS AND PARTNERS ACCOUNTS

5.1 THE UNITS

     The  interest of the  Limited Partners in the  Partnership shall be divided
into and represented by  units (the "UNITS"). There  shall be no restriction  on
the  maximum number of Units that a Limited Partner may hold in the Partnership.
No other classes of units  will be issued. Each Unit  shall be identical to  all
other  Units in all respects  and, accordingly, shall entitle  the holder to the
same rights and obligations as  a holder of any  other Unit. No Limited  Partner
will,  in respect of any Unit held by such Limited Partner, have any preference,
priority or right in any circumstance over any other Limited Partner in  respect
of  any Unit  held by  the other  Limited Partner.  No fractional  Units will be
issued.

                                       D-80


5.2 CONTRIBUTION BY GENERAL PARTNER

     On  the  Effective  Date,  the   General  Partner  shall  make  a   capital
contribution of $   --   to the capital of the Partnership and shall be entitled
to  allocations and distributions of Net Income or Net Losses set out in Article
6.

5.3 CONTRIBUTIONS BY THE INITIAL LIMITED PARTNER

     On the Effective Date, the Initial Limited Partner shall contribute  assets
to the Partnership with an aggregate value of $   --   and the Partnership shall
issue    --   Units to the Initial Limited Partner as consideration therefor.

5.4 NO REQUIREMENT TO MAKE ADDITIONAL CAPITAL CONTRIBUTIONS

     No  Partner shall be required  to make any contributions  to the capital of
the Partnership  in excess  of such  Partner's initial  capital contribution  as
provided in Section 5.2 or Section 5.3, as the case may be.

5.5 ADMISSION OF NEW LIMITED PARTNER

     The  General  Partner  shall  be  authorized,  subject  to  the  terms  and
provisions of this Agreement, to admit any Person as a Limited Partner  provided
that (i) the Limited Partners have approved the admission by Special Resolution;
(ii)  such Person confirms the representations, warranties and covenants set out
in Section 3.10 hereof; and  (iii) such Person agrees to  be bound by the  terms
hereof.  The General Partner  shall have the  right to require  a subscriber for
Units to provide evidence reasonably satisfactory to it (including if  requested
by  the  General  Partner, acting  reasonably,  an  opinion of  counsel)  of the
subscriber's eligibility for subscription and  of the truth of such  subscribers
representations and warranties. Subject to compliance with the foregoing, all of
the  Partners  hereby consent  to the  admission  of such  Persons as  a Limited
Partner without any further act of the Limited Partners. Upon acceptance of such
Person, the General Partner  will forthwith cause to  be amended the Record  and
such other documents as may be required by the Limited Partnerships Act.

     Each  new Limited Partner's interest in the Partnership shall be calculated
by issuing to  such new  Limited Partner  a number of  Units equal  to the  fair
market  value of the  Limited Partner's capital  contribution to the Partnership
divided by the  value of a  Unit on the  date that the  capital contribution  is
made.

5.6 RECORD

     The General Partner shall:

     (a)  maintain a principal office for the Partnership;

     (b)  cause  to  be maintained  a  record (the  "RECORD")  of the  names and
          addresses of  the  Partners  and the  particulars  of  each  Partner's
          capital contribution to the Partnership;

     (c)  maintain  such other records as may be  required by law or pursuant to
          this Agreement;

     (d)  make on behalf of the Partnership  all recordings or filings with  any
          government  or  like authority  that are  required to  be made  by the
          Partnership; and

     (e)  keep a copy of  the Declaration and  a copy of  this Agreement at  its
          principal office.

5.7 AMENDMENTS TO RECORD

     The  rights and obligations of a subscriber for or a transferee of Units as
a Limited  Partner or  substituted  Limited Partner,  as applicable  under  this
Agreement  commence  and are  enforceable  by and  upon  the Limited  Partner as
between the Limited Partner and  the other Partners from  the date on which  the
Record  is amended, as required under  the Limited Partnerships Act, adding such
Limited Partner as a Limited Partner of the Partnership.

     No change of a name or address of a Limited Partner, no transfer of a  Unit
and  no admission of a  substituted Limited Partner as  a Limited Partner in the
Partnership shall be  effective for  the purposes  of this  Agreement until  all
reasonable  requirements  as  determined  by the  General  Partner  with respect
thereto have been met and until such change, transfer, substitution or  addition
is  duly reflected  in an  amendment to  the Record  as required  by the Limited
Partnerships Act. The names and addresses  of the Limited Partners as  reflected
from  time to time  in the Record shall  be conclusive as to  such facts for all
purposes of the Partnership.

     The General Partner, on behalf of the Partnership, shall from time to  time
promptly  effect filings, recordings, registrations and amendments to the Record
and the  Declaration  and  to  such  other  documents  and  at  such  places  as
                                       D-81


in  the opinion  of counsel  to the  Partnership are  necessary or  advisable to
reflect changes in  the membership of  the Partnership, transfers  of Units  and
dissolution of the Partnership as herein provided and to constitute a transferee
of Units as a substituted Limited Partner.

     Except  as required by law, the Partnership, General Partner or any Limited
Partner will not be bound or compelled in any way to recognize (even when having
actual notice) any equitable, contingent, future or partial interest in any Unit
or in any fractional part of a Unit  or any other rights in respect of any  Unit
except  an absolute  right to the  entirety of  the Unit of  the Limited Partner
shown on the Record as holder of such Unit.

5.8 INSPECTION OF RECORD

     Any Limited Partner shall have the right to inspect and take extracts  from
the Record and to obtain a copy of the Record during normal business hours.

5.9 INITIAL EXPENSES

     The  Partnership shall pay all  costs, commissions, disbursements, fees and
expenses incurred in connection with the formation of the Partnership.

5.10 NO RIGHT OF WITHDRAWAL

     No Partner shall have any right to withdraw or make a demand for withdrawal
of any amount of capital contributed to the Partnership until the termination of
the Partnership in accordance with Article 8 hereof.

5.11 TRANSFER OF UNITS

     Units are transferable in accordance with the provisions hereof. Subject to
compliance with the provisions  hereof and with  applicable securities laws  and
the  payment  of a  reasonable  administration fee  by  the transferee  to cover
out-of-pocket costs  incurred by  the  General Partner  in connection  with  the
transfer,  Units  may be  transferred by  a  Limited Partner  or its  agent duly
authorized in writing to any Person but such Person shall not be recorded on the
Record as the holder of Units nor, if  such Person is not a Limited Partner,  be
entitled  to become a  Limited Partner unless  such person has  delivered to the
General Partner a transfer form completed and executed in a manner acceptable to
the General Partner (which may require  the transferor to arrange for  guarantee
of  its  endorsement by  a Canadian  chartered  bank, registered  trust company,
member of  the Investment  Dealers Association  of  Canada or  a member  of  the
Toronto  Stock Exchange), acting reasonably and until all filings and recordings
required by the Limited Partnerships  Act, any other applicable legislation  and
this  Agreement  have been  duly made.  Where the  transferee complies  with the
provisions aforesaid and is entitled to become a Limited Partner pursuant to the
provisions hereof,  the  General  Partner  shall  be  authorized  to  admit  the
transferee  to the  Partnership as  a Limited  Partner and  the Limited Partners
hereby consent  to the  admission of,  and  will admit,  the transferee  to  the
Partnership  as a Limited  Partner, without further act  of the Limited Partners
(other than as may be required by law). The General Partner shall also have  the
right  to  deny  the  transfer  of Units  to  Persons  that  cannot  provide the
representations and warranties set out in Section 3.10 hereof.

     If a transferor of Units is a firm or a corporation, or purports to  assign
such  Units in any representative capacity, or if an assignment results from the
death, mental incapacity  or bankruptcy  of a  Limited Partner  or is  otherwise
involuntary,  the transferor  or its legal  representative shall  furnish to the
General Partner such documents, certificates, assurances, court orders and other
instruments as the  General Partner may  reasonably require to  effect the  said
transfer and assignment.

5.12 RIGHTS AND OBLIGATIONS OF SUBSTITUTED LIMITED PARTNER

     Upon  amendment of the Record to reflect the admission of a transferee as a
Limited Partner, the transferee  shall become a Limited  Partner and shall  have
all of the rights and powers and shall be subject to all of the restrictions and
liabilities  of  the transferor  in respect  of the  acquired Units,  except any
liability of which such  substituted Limited Partner did  not have notice of  at
the  time it became  a Limited Partner  and which could  not be ascertained from
this Agreement, the Declaration or  the Record. Unless the transferor  continues
to  hold any Units  following such transfer,  the transferor of  the Units shall
thereupon cease to be a Limited Partner, provided, however, that the  transferor
shall  remain  liable for  all  defaults or  liabilities  which accrued  or were
payable by it while it was a Limited Partner.

                                       D-82


                                   ARTICLE 6
                      PARTICIPATION IN PROFITS AND LOSSES

6.1 ALLOCATION OF NET INCOME AND NET LOSSES

     The Net Income of the Partnership  for each Fiscal Year shall be  allocated
amongst the Partners as follows:

     (a)  first,  100% to the General Partner until it has received an aggregate
          amount  equal  to  the  sum  of  all  reasonable  expenses  and  costs
          (including those relating to personnel salaries and benefits) incurred
          by  the General Partner during the  Fiscal Year in connection with the
          performance of its duties under  this Agreement and such amount  being
          the reimbursement for the same; and

     (b)  thereafter,

        (i)   Limited  Partners whose names  appear on the Record  at the end of
              such Fiscal Year will  be allocated 99.99% of  the Net Income  for
              such  Fiscal Year,  in proportion to  the number of  Units held by
              them; and

        (ii)  the General Partner will be allocated 0.01% of the Net Income  for
              such Fiscal Year.

     The  Net Losses of the Partnership for  each Fiscal Year shall be allocated
among the Partners in the same proportions  as the allocation of Net Income  set
out in subsections 6.1(b)(i) and (ii) above.

     The net income (including taxable capital gains) or losses for tax purposes
of  the Partnership for each  Fiscal Year, the amounts of  which may vary in any
Fiscal Year from  the Net  Income or  Net Loss for  that Fiscal  Year, shall  be
allocated  among the Partners in the same proportions  as set out in (a) and (b)
above.

6.2 RIGHT OF GENERAL PARTNER TO DISTRIBUTE CAPITAL OR NET INCOME OF PARTNERSHIP

     The General  Partner shall  determine the  timing of  distributions of  the
Partnership  in  its  sole discretion.  If,  at  any time,  the  General Partner
decides, in  its sole  discretion,  that it  is in  the  best interests  of  the
Partnership  to distribute all or  some of the capital  and/or Net Income of the
Partnership to the Partners, the General Partner shall distribute the Net Income
or capital to the Partners in accordance with the allocations set out in Section
6.1. Only Partners that are in compliance with the terms of this Agreement  will
be  eligible to participate in distributions  of Net Income. Notwithstanding the
foregoing, the Partnership shall not make a distribution pursuant to  subsection
6.1(b) on or prior to October 31, 2004.

6.3 LOANS BY PARTNERSHIP

     The  Partnership shall lend $16,000,000 to the Limited Partner (the "Loan")
on the Effective Date on commercial terms. The Loan shall be used by the Limited
Partner to fund the redemption of its  Class C preferred shares. The Loan  shall
be  payable on demand after November 1,  2004 and the Partnership may set-off an
amount payable under the  Loan against distributions of  the Partnership to  the
Limited  Partner. Except as provided in  the preceding sentence, the Partnership
shall not lend any funds to the Limited Partner on or prior to October 31, 2004.
The Partnership shall not  lend funds to the  General Partner or the  Affiliates
thereof.

                                   ARTICLE 7
                      ACCOUNTING AND FINANCIAL INFORMATION

7.1 BOOKS AND RECORDS

     The  General  Partner shall  keep and  maintain,  or cause  to be  kept and
maintained, at  its  principal office,  full,  complete and  accurate  books  of
account of the transactions of the Partnership and records of the Business. Each
Limited  Partner  will have  access  to information  concerning  the Partnership
unless, in  the reasonable  opinion  of the  General Partner,  such  information
should be kept confidential in the interests of the Partnership.

7.2 FINANCIAL STATEMENTS

     The  General Partner  shall ensure that  all financial  transactions of the
Partnership are recorded and accounted for in accordance with Canadian generally
accepted accounting principles.

                                       D-83


7.3 APPOINTMENT OF AUDITOR

     The General Partner shall, on behalf of the Partnership, retain the Auditor
to review  and  report  to the  Partners  on  the financial  statements  of  the
Partnership for each Fiscal Year.

7.4 ANNUAL REPORTING

     Within  90 days of the  end of each Fiscal  Year, the General Partner shall
forward to each Limited Partner who is shown on the Record as a Limited  Partner
at  such date, an  annual report containing audited  financial statements of the
Partnership for the  Fiscal Year  just ended  including the  certificate of  the
Auditor  and  comparative  financial statements  for  the  immediately preceding
Fiscal Year.  Such  financial  statements  shall  include  a  balance  sheet,  a
statement of income and a statement of changes in financial position.

7.5 INCOME TAX INFORMATION

     Within  90 days of the  end of each Fiscal  Year, the General Partner shall
forward to each Limited Partner who was shown on the Record as a Limited Partner
during the Fiscal Year  just ended, such information  as is necessary to  enable
such  Limited Partner to  file income tax  returns with respect  to such Limited
Partner's income (or loss) from the Partnership in respect of such Fiscal Year.

7.6 OTHER INFORMATION

     From time to time and upon the request of the Limited Partner, the  General
Partner  shall forward  to the  Limited Partner  such information  regarding the
Partnership as is necessary to enable the Limited Partner in its opinion, acting
reasonably, to comply with  its filing, disclosure  and other obligations  under
applicable laws, regulations, orders and policies.

                                   ARTICLE 8
                 DISSOLUTION AND TERMINATION OF THE PARTNERSHIP

8.1 TERM

     Subject  to Section  8.2, the  term (the  "TERM") of  the Partnership shall
commence  on  the  date  of  filing  of  the  Declaration  and  shall   continue
indefinitely  for a minimum period of 15  years (the "INITIAL TERM") unless this
Agreement is otherwise terminated pursuant to its terms.

8.2 EVENTS OF DISSOLUTION

     The Partnership  shall  be dissolved  and  its affairs  wound-up  upon  the
earliest of:

     (a)  the  removal  or  resignation  or deemed  resignation  of  the General
          Partner unless the General Partner is replaced as provided in  Section
          3.16 or 3.17, as applicable;

     (b)  the  bankruptcy or insolvency  of the Partnership or  the passing of a
          resolution requiring the dissolution or winding-up of the Partnership,
          or the appointment  of a  trustee or receiver  of the  affairs of  the
          Partnership;

     (c)  by the unanimous agreement of the Partners; and

     (d)  after  the  end of  the  Initial Term,  by  Special Resolution  of the
          Limited Partners.

8.3 EVENTS NOT CAUSING DISSOLUTION

     Notwithstanding any rule of law or equity to the contrary, the  Partnership
shall  not be dissolved except in accordance with this Agreement. In particular,
but without  restricting the  generality of  the foregoing  and subject  to  the
express  provisions of this Agreement, the Partnership shall not be dissolved or
terminated by the  removal, actual or  deemed resignation, death,  incompetence,
bankruptcy,   insolvency,   other   disability   or   incapacity,   dissolution,
liquidation,  winding-up  or  receivership,   or  the  admission,   resignation,
withdrawal or termination of the General Partner or any Limited Partner.

8.4 DISTRIBUTION OF PARTNERSHIP ASSETS

     Upon  an event  of dissolution of  the Partnership, the  General Partner or
such other  Person  as may  be  appointed by  the  Limited Partners  by  Special
Resolution  shall pay or provide for the payment of all debts and liabilities of
the

                                       D-84


Partnership and liquidation expenses and  promptly make a final distribution  of
the  remaining Partnership Assets either  in cash or in  kind to the Partners in
accordance with the allocations set out in Section 6.1.

8.5 TERMINATION OF PARTNERSHIP

     The Partnership shall terminate when all  of its assets have been  disposed
of,  the  net proceeds  therefrom (after  payment  of or  due provision  for the
payment of,  all  debts,  liabilities  and obligations  of  the  Partnership  to
creditors) have been distributed as provided in this Article and the Partnership
has  filed a declaration  of dissolution prescribed  by the Limited Partnerships
Act.

                                   ARTICLE 9
                                    GENERAL

9.1 NOTICE

     All notices, requests or other  communications required or permitted to  be
given  under  this  Agreement  shall  be in  writing  and  delivered,  posted by
first-class prepaid mail or sent by  telecopier addressed to the party for  whom
it is intended as follows:

     (a)  if to the General Partner:

          100 International Boulevard
          Toronto, Ontario M9W 6J6

          Facsimile Number:    --
          Attention:    --

     (b)  if  to a Limited Partner,  to the address or  facsimile number of such
          Limited Partner as it appears on the Record.

     Notices delivered shall be deemed  given and received upon delivery,  those
sent by first-class prepaid mail on the 4th day after posting, and those sent by
telecopier,  on the day of transmission; provided that during any period of mail
disruption, notice shall be delivered or sent by telecopier. The General Partner
may, at any time and from time  to time, designate a substitute address for  the
purpose of this Agreement by giving written notice thereof to the other Partners
at least 10 days in advance of the effective date of such designation.

9.2 AMENDMENTS

     (a)  Subject  to subsection 9.2(b), (c), (d) and (e), this Agreement may be
          amended only  in writing  and only  with the  consent of  the  Limited
          Partners by Special Resolution.

     (b)  No  amendment shall  be made  to this  Agreement which  would have the
          effect of altering the ability of  the Limited Partners to remove  the
          General Partner involuntarily, reducing any Partner's share of the Net
          Income,   reducing  the  interest  of  the  Limited  Partners  in  the
          Partnership, changing the liability  of any Limited Partner,  changing
          the  right of a Limited Partner to vote at any meeting or changing the
          Partnership from  a  limited  partnership  to  a  general  partnership
          without the unanimous written consent of the Partners.

     (c)  This  Section 9.2 shall  not be amended  without the unanimous written
          consent of the Partners.

     (d)  No amendment which would  have the effect  of adversely affecting  the
          rights  and obligations of the General Partner may be made without the
          consent of the General Partner, which consent may not be  unreasonably
          withheld.

     (e)  The  General Partner may, without prior  notice to or consent from any
          Limited Partner,  from  time  to  time amend  any  provision  of  this
          Agreement,  if such  amendment is,  in the  opinion of  counsel to the
          Partnership, for the protection or  benefit of Limited Partners or  of
          the  Partnership or to cure any  ambiguity or to correct or supplement
          any provision contained herein  or therein which  may be defective  or
          inconsistent  with  any other  provision  contained herein  or therein
          provided such cure, correction or supplemental provision does not  and
          will  not, in  the opinion  of counsel  to the  Partnership, adversely
          affect the interest of any Limited Partner or of the Partnership.

                                       D-85


     (f)  The General Partner shall  notify the Limited  Partners in writing  of
          the full details of any amendments to this Agreement within 30 days of
          the effective date of the amendment.

9.3 TIME

     Time shall be of the essence of this Agreement.

9.4 GOVERNING LAW

     This  Agreement shall be governed by and interpreted in accordance with the
laws of the Province of Ontario.

9.5 SEVERABILITY

     If any provision  of this Agreement  is wholly or  partially invalid,  this
Agreement  shall be interpreted as if the invalid provision, or portion thereof,
had not been a part hereof so that such invalidity shall not affect the validity
of the remainder which shall be construed as if this Agreement had been executed
without the invalid portion; and  it is hereby declared  to be the intention  of
the  parties that this  Agreement would have been  executed without reference to
any portion which may, for any reason, hereafter be declared or held invalid.

9.6 BINDING AGREEMENT

     Subject to the  restrictions on assignment  and transfer herein  contained,
this  Agreement will  enure to the  benefit of  and be binding  upon the parties
hereto and their  respective heirs,  executors, administrators  and other  legal
representatives, successors and assigns.

9.7 FURTHER ASSURANCES

     The  parties hereto agree to execute and deliver such further documents and
do such  things as  may  be necessary  in  order to  give  full effect  to  this
Agreement.

9.8 COUNTERPARTS

     This  Agreement may be executed in any number of counterparts with the same
effect as if the parties hereto had all signed the same document. This Agreement
may also be adopted in any subscription  form or similar instrument signed by  a
Limited  Partner, with the same effect as if such Limited Partner had executed a
counterpart of  this Agreement.  All  counterparts of  this Agreement  shall  be
construed together and shall constitute one instrument.

9.9 ENTIRE AGREEMENT

     This  Agreement constitutes the  entire agreement between  the parties with
respect to all of the matters herein and its execution has not been induced  by,
nor  do  any parties  rely upon  or  regard as  material, any  representation or
writing not incorporated herein and made a part hereof.

9.10 LIMITED PARTNER NOT A GENERAL PARTNER

     If any provision  of this  Agreement has the  effect of  imposing upon  any
Limited  Partner (other  than, if  applicable, the  General Partner)  any of the
liabilities or obligations of a  general partner under the Limited  Partnerships
Act, such provision shall be of no force and effect.

9.11 SURVIVAL

     The representations, warranties and covenants made pursuant to Sections 3.8
and  3.10  shall  survive  the  execution of  this  Agreement  and  each Partner
covenants and agrees to ensure  that each representation, warranty and  covenant
made  pursuant to Sections 3.8  and 3.10, as applicable,  remain true as long as
such Partner remains  a Partner.  Unless otherwise provided  in this  Agreement,
upon  termination, no party shall have  any further obligations hereunder except
for (a)  obligations arising  prior  to the  date  of termination  which  remain
unsatisfied as of the date of termination and (b) obligations or covenants which
expressly  or necessarily extend beyond the term of this Agreement including the
obligations in Sections 3.14 and 3.15.

                                       D-86


     IN WITNESS OF WHICH the parties have duly executed this Agreement.

                                         MDS LABORATORY SERVICES INC.

                                         By:
                                          --------------------------------------
                                          Name:
                                          Title:

                                         By:
                                          --------------------------------------
                                          Name:
                                          Title:

                                         MDS INC.

                                         By:
                                          --------------------------------------
                                          Name:
                                          Title:

                                         By:
                                          --------------------------------------
                                          Name:
                                          Title:

                                       D-87


                                   EXHIBIT 8
                           LABS MANAGEMENT AGREEMENT

                              MANAGEMENT AGREEMENT

                         MDS LABORATORY SERVICES, L.P.

                                    --   , 2004

                                       D-88


     THIS MANAGEMENT AGREEMENT is made as of the    --   day of    --   , 2004.

     BETWEEN:

     MDS INC., a corporation  continued under the laws  of Canada with its  head
office at 100 International Boulevard, Toronto, Ontario, M9W 6J6 ("MDS")

                                                               OF THE FIRST PART

     - and -

     MDS  LABORATORY SERVICES INC., a corporation incorporated under the laws of
Canada (the  "GENERAL PARTNER"),  as general  partner of  and on  behalf of  MDS
LABORATORY  SERVICES, L.P., an Ontario limited  partnership with its head office
at 100 International Boulevard, Toronto, Ontario, M9W 6J6 (the "PARTNERSHIP")

                                                              OF THE SECOND PART

     WHEREAS the Partnership was formed to operate a clinical laboratory testing
business in Ontario (the "BUSINESS");

     AND WHEREAS MDS and  the Partnership wish to  enter into this Agreement  to
outline  the terms on  which MDS shall  provide certain support  services to the
Partnership;

     THEREFORE in consideration  of the  premises, the  mutual covenants  herein
contained and other good and valuable consideration, the receipt and sufficiency
of which are hereby acknowledged, the parties agree as follows:

                                   ARTICLE 1
                                 INTERPRETATION

1.1 DEFINITIONS

     The following terms shall have the meanings attributed to them as follows:

    "AFFILIATE"  has the meaning  ascribed thereto in  the Business Corporations
    Act (Ontario);

    "AGREEMENT" means this management agreement between the Partnership and MDS,
    as amended, supplemented or restated from time to time;

    "COSTS OR CLAIMS" has the meaning ascribed thereto in Section 7.1 hereof;

    "LIMITED PARTNERSHIP AGREEMENT" means  the limited partnership agreement  of
    the  Partnership dated    --    , 2004, as it may be amended or supplemented
    from time to time;

    "PATIENT RECORDS" has the  meaning ascribed thereto  in Section 6.2  hereof;
    and

    "SUPPORT SERVICES" has the meaning ascribed thereto in Section 2.1 hereof.

1.2 INTERPRETATION

     For  all purposes of this Agreement, except as otherwise expressly provided
or unless the context otherwise requires:

     (a)  the headings preceding  the text, articles  and paragraphs hereof  are
          for  convenience only and do not form a part of this Agreement and are
          not intended to interpret, define or limit the scope, extent or intent
          of this Agreement or any provisions hereof;

     (b)  all accounting terms  not otherwise defined  herein have the  meanings
          assigned  to  them  in  accordance  with  Canadian  generally accepted
          accounting principles;

     (c)  all references  to currency  herein  are deemed  to mean  currency  of
          Canada;

     (d)  any  reference to a statute shall include  and shall be deemed to be a
          reference to  such  statute  and  to  the  regulations  made  pursuant
          thereto,  with all amendments  made thereto and in  force from time to
          time, and to any  statute or regulation that  may be passed which  has
          the  effect of supplementing or superseding the statute so referred to
          or the regulations made pursuant thereto;

     (e)  any  reference  to  an   entity  (including,  without  limitation,   a
          partnership)  shall include and  shall be deemed to  be a reference to
          any entity that is a successor of such entity; and

                                       D-89


     (f)  words importing the  masculine gender include  the feminine or  neuter
          gender and words in the singular include the plural and vice versa.

                                   ARTICLE 2
                                    SERVICES

2.1 ENGAGEMENT

     The Partnership hereby engages and retains MDS, and MDS hereby accepts such
engagement  and retainer, to provide the  Partnership with support services that
are required to operate the Business (the "SUPPORT SERVICES") including, without
limitation, the following:

     (a)  information technology services;

     (b)  financial services;

     (c)  purchasing and/or procurement services;

     (d)  human resources services;

     (e)  communications services;

     (f)  real estate services;

     (g)  regulatory compliance services; and

     (h)  government relations services.

     The Partnership  acknowledges  and  agrees that  this  Agreement  does  not
entitle  the Partnership  to have  Support Services  provided by  any particular
employee at  MDS and  that MDS  shall  determine, in  its sole  discretion,  the
allocation of responsibility among employees at MDS.

2.2 STANDARD OF CARE

     MDS shall exercise its powers and discharge its duties and responsibilities
hereunder  diligently, honestly  and in good  faith and  in connection therewith
shall exercise the degree of care, diligence and skill of a third party  service
provider in comparable circumstances.

2.3 SCOPE OF OPERATIONS

     The Partnership confirms and acknowledges that the Partnership's operations
shall  be  limited to  Ontario  and be  confined  to servicing  clients  who are
situated in Ontario. MDS shall not  be required to provide the Partnership  with
any Support Services outside of Ontario.

2.4 OFFICERS AND PERSONNEL

     MDS  shall ensure  that personnel  assigned by  MDS to  perform the Support
Services are appropriately qualified and devote  such time and attention to  the
performance  of the Support  Services as may be  necessary to properly discharge
MDS' responsibilities under this Agreement.

2.5 CONTRACTING WITH AFFILIATES

     The Partnership  acknowledges  that,  in  the  performance  of  its  duties
hereunder,  MDS may  contract with,  retain or delegate  to one  or more agents,
advisors or other persons,  including without limitation  Affiliates of MDS,  to
provide the Support Services or to assist MDS in providing the Support Services,
provided  that MDS retains full responsibility to the Partnership for the proper
performance thereof.

2.6 INDEPENDENT CONTRACTOR

     The parties acknowledge and  agree that MDS  is at all  times acting as  an
independent  contractor in the performance of  its work, duties, and obligations
arising under this  Agreement, and  nothing in  this Agreement  is intended  nor
shall  be construed  to create  between MDS and  the Partnership  either a joint
venture, landlord/tenant,  partnership or  any other  similar relationship.  The
Partnership shall not have or exercise any control or direction over the methods
by  which MDS shall provide the  Support Services under this Agreement, although
MDS shall  provide  the  Support  Services  in  a  manner  consistent  with  the
reasonable needs of the Partnership and the Business.

                                       D-90


2.7 REPORTS AND RECORDS

     When  reasonably  required  and  requested by  the  Partnership,  MDS shall
prepare and provide  or arrange  for the  preparation and  provision of  written
reports  in  connection  with the  Support  Services provided  pursuant  to this
Agreement.

2.8 RELIANCE

     MDS shall  be  entitled  to  rely on  any  notice  or  other  communication
reasonably  believed by it in  good faith to be genuine  and correct and to have
been sent to it by or on behalf of the Partnership or the General Partner.

                                   ARTICLE 3
                               FEES AND EXPENSES

3.1 ANNUAL FEE

     The Partnership shall pay to MDS an annual management fee, payable  monthly
in advance, equal to MDS' cost of providing Support Services in each fiscal year
of  the Partnership (each  a "Fiscal Year")  which cost shall  be reasonable and
documented. MDS and the Partnership shall agree on an estimate of the annual fee
payable for each Fiscal  Year (other than  the year ended  October 31, 2004)  by
November 30th of each year. The parties agree that the annual fee payable to MDS
in  the Fiscal  Year ending October  31, 2004  shall be $     --    , subject to
adjustment.

     At the end of each  Fiscal Year, an accounting of  the cost of the  Support
Services  provided over the year will be conducted by MDS and an adjustment will
be made to the extent  that the estimated annual fee  does not equal the  actual
cost  to MDS of  providing the Support  Services. If the  estimated fee is lower
than the actual fee, the Partnership shall pay to MDS the difference within   --
days  of the  determination of the  actual fee.  If the estimated  annual fee is
higher than the  actual fee,  MDS shall pay  the difference  to the  Partnership
within  -- days of the determination of the actual fee.

3.2 EXPENSES

     The  Partnership  shall  be responsible  for  the payment  of  all expenses
relating to  its operations,  including without  limitation the  management  fee
described  in Section 3.1 and expenses  related to legal, audit, tax, regulatory
matters, insurance, taxes, the preparation  of financial and other reports,  tax
returns  and communications to  partners of the  Partnership, and shall promptly
reimburse MDS  for all  reasonable  out-of-pocket expenses  incurred by  MDS  in
providing  the Support Services. MDS and the Partnership agree that MDS shall be
entitled to  pay  certain  of  the  Partnership's  expenses  as  agent  for  the
Partnership and MDS will be entitled to reimbursement therefor.

3.3 TAXES

     Unless  otherwise provided in this  Agreement, all amounts expressed herein
to be payable to MDS pursuant to  this Agreement are exclusive of any goods  and
services  tax ("GST") or  retail sales tax  ("RST") required to  be paid thereon
pursuant to the Excise Tax Act (Canada), or applicable sales tax legislation  or
otherwise  and  it is  agreed  that MDS  shall be  paid  by the  Partnership, in
addition to all amounts otherwise payable  to MDS hereunder, all amounts of  GST
or  RST collectible by MDS with respect  to all amounts otherwise payable to MDS
hereunder and such GST and RST, as applicable, shall be included by MDS in  each
invoice rendered by it.

     If  any portion of the  fee payable for the  Support Services is subject to
provincial sales taxes, MDS shall (i) in its invoice to the Partnership  specify
the amount of the fee that relates to taxable Support Services and the amount of
the  fee that relates to non-taxable Support Services and (ii) maintain a record
of the charges for  the taxable Support  Services for a period  of no less  than
five years.

                                       D-91


                                   ARTICLE 4

                         REPRESENTATIONS AND WARRANTIES

4.1 REPRESENTATIONS, WARRANTIES AND COVENANTS OF MDS

     MDS represents, warrants and covenants that it:

     (a)  is  a corporation  continued under the  laws of Canada  and is validly
          subsisting under such laws;

     (b)  has the corporate  capacity and authority  to perform its  obligations
          under this Agreement and such obligations do not and will not conflict
          with  or  breach  or result  in  a  breach of  any  of  its constating
          documents;

     (c)  has duly  executed and  delivered this  Agreement and  this  Agreement
          constitutes  a legal, valid, binding and enforceable obligation of it;
          and

     (d)  shall obtain and maintain in full force and effect during the term  of
          this Agreement all licenses, permits, and certificates required by law
          which  are required for the performance of its obligations pursuant to
          this Agreement.

4.2 REPRESENTATIONS, WARRANTIES AND COVENANTS OF THE PARTNERSHIP

     The Partnership represents, warrants and covenants that it:

     (a)  has the capacity and authority  to perform its obligations under  this
          Agreement  and such obligations  do not and will  not conflict with or
          breach or result in a breach of the Limited Partnership Agreement;

     (b)  has duly  executed and  delivered this  Agreement and  this  Agreement
          constitutes  a legal, valid, binding and enforceable obligation of the
          Partnership; and

     (c)  shall obtain and maintain in full force and effect during the term  of
          this Agreement all licenses, permits, and certificates required by law
          which  are required for the performance of its obligations pursuant to
          this Agreement.

                                   ARTICLE 5
                              TERM AND TERMINATION

5.1 TERM

     Unless terminated as provided herein, this Agreement shall continue in full
force and effect  until the earlier  of (i) the  dissolution of the  Partnership
pursuant  to  the  Limited Partnership  Agreement;  and (ii)  the  bankruptcy or
insolvency of MDS or  the passing of a  resolution requiring the dissolution  or
winding-up  of MDS or the appointment of  a trustee or receiver over the affairs
of MDS.

5.2 TERMINATION BY MDS

     Notwithstanding Section 5.1, this Agreement  may be terminated by MDS:  (i)
upon 120 days prior written notice to the Partnership or (ii) immediately in the
event  of the removal or resignation of  MDS Laboratory Services Inc. as general
partner of the Partnership.

5.3 EFFECT OF TERMINATION; SURVIVAL

     Unless otherwise provided  in this  Agreement, upon  termination, no  party
shall have any further obligations hereunder, except for (i) obligations arising
prior  to the  date of termination  which remain  unsatisfied as of  the date of
termination, and (ii)  obligations or covenants  which expressly or  necessarily
extend beyond the term of this Agreement, including the obligations in Article 6
and  the obligations for the payment of  the annual fee and the reimbursement of
expenses through to the date of termination in the manners described in Sections
3.1 and 3.2 above.

                                       D-92


                                   ARTICLE 6
                             RECORDS; TRADE SECRETS

6.1 ACCESS TO INFORMATION

     Each of the parties shall at all  reasonable times during the term of  this
Agreement  and thereafter permit the other  parties to have reasonable access to
its documents, books,  and records relating  to this Agreement  and any and  all
access  shall  be  subject  to  the  requirements  of  all  applicable  laws and
regulations and requirements for certification, licensing and accreditation.

6.2 OWNERSHIP OF RECORDS

     All business records and information  relating exclusively to the  business
and activities of any party shall be the property of that party, irrespective of
the  identity of the party responsible for producing or maintaining such records
and information. Any and all patient records, reports or information produced as
a result of the performance  of laboratory testing services  by or on behalf  of
the  Partnership  (collectively, the  "PATIENT RECORDS")  shall, as  between the
parties hereto, be and remain  the property of the  Partnership. If MDS for  any
reason receives access to the Patient Records in connection with this Agreement,
it  shall be solely responsible, as  between the parties hereto, for maintenance
of business and patient  confidentiality with respect to  any information it  or
its agents shall obtain hereunder.

6.3 CONFIDENTIALITY OF RECORDS

     MDS  shall adopt  policies, procedures  and practices  which shall  seek to
assure that  the  records of  the  Business, including  without  limitation  the
Patient  Records, shall  not be disclosed  to unrelated third  parties and shall
comply in  all material  respects with  all applicable  federal, provincial  and
local  laws and  regulations relating  to the records  of the  Business. In this
connection,  information  from  medical  records  of  patients  and  information
received  from physicians pursuant to the physician-patient relationship may not
be disclosed  without the  consent of  a patient  except for  use reasonably  in
connection  with the administration of a patient's agreement or when required or
permitted by applicable law.

6.4 PROPRIETARY METHODS

     The Partnership hereby agrees that all of the systems, methods, procedures,
written materials  and controls  employed  by MDS  in  the performance  of  this
Agreement ("PROPRIETARY INFORMATION") are proprietary in nature and shall remain
the  property  of MDS.  The Proprietary  Information  shall not  at any  time be
utilized, distributed, copied or otherwise acquired or used by the  Partnership,
except  to the extent such Proprietary Information  is in the public domain. The
Partnership agrees that the remedy at law for any breach of covenants  contained
in  this  Section may  be inadequate  and  would be  difficult to  ascertain and
therefore upon an event of a breach or threatened breach of such covenants, MDS,
in addition  to  any  other  remedies,  shall  have  the  right  to  enjoin  the
Partnership  from any  threatened or  actual activity  in violation  hereof. The
Partnership hereby consents and agrees that a temporary or permanent  injunction
may  be  granted in  any proceeding  without the  necessity of  providing actual
damages or posting a bond.

                                   ARTICLE 7
                            INDEMNITY AND INSURANCE

7.1 PARTNERSHIP INDEMNITY

     The Partnership shall  indemnify and  hold harmless MDS  and its  officers,
directors, shareholders, employees, agents and independent contractors (the "MDS
INDEMNITEES")  from  and  against  any  and  all  third  party  claims,  losses,
liabilities, damages, awards, judgments, assessments, costs and expenses of  any
kind  or  nature,  including  reasonable  attorneys  fees  ("COSTS  OR CLAIMS"),
resulting from: (i)  MDS' performance  of its  obligations hereunder  consistent
with  the standard of care set forth in Section 2.2, and (ii) acts or omissions,
in good  faith, by  MDS  at the  direction of  the  Partnership or  the  General
Partner.

     Notwithstanding  the foregoing, the Partnership shall have no obligation to
indemnify or  hold harmless  the MDS  Indemnitees to  the extent  that Costs  or
Claims  arise in whole or in part from  acts or omissions of the kinds for which
MDS is required to indemnify the Partnership as provided in Section 7.2.

                                       D-93


7.2 MDS INDEMNITY

     MDS shall indemnify and hold harmless the Partnership from and against  any
and  all Costs and Claims resulting from acts or omissions in the performance of
this Agreement by MDS, its officers, directors, employees or authorized  agents,
provided  that MDS shall have no  obligation to indemnify the Partnership unless
MDS' conduct (i) falls below the standard  of care set forth in Section 2.2,  or
(ii) is fraudulent, criminal or intentionally wrongful.

     Notwithstanding  the foregoing, MDS  shall not be  required to indemnify or
hold harmless the Partnership  from Costs or  Claims that arise  in whole or  in
part  from acts  or omissions,  in good faith,  by MDS  at the  direction of the
Partnership or the General Partner.

                                   ARTICLE 8
                                    GENERAL

8.1 NOTICE

     All notices, requests or other  communications required or permitted to  be
given  under  this  Agreement  shall  be in  writing  and  delivered,  posted by
first-class prepaid mail or sent by  telecopier addressed to the party for  whom
it is intended as follows:

     (a)  If to MDS:

        100 International Boulevard
        Toronto, Ontario
        M9W 6J6

        Facsimile Number: --

          Attention: --

     (b)  if to the Partnership:

        c/o MDS Laboratory Services Inc.
        100 International Boulevard
        Toronto, Ontario
        M9W 6J6

        Facsimile Number: --

          Attention: --

     Notices  delivered shall be deemed given  and received upon delivery, those
sent by first-class prepaid mail on the 4th day after posting, and those sent by
telecopier, on the day of transmission; provided that during any period of  mail
disruption, notice shall be delivered or sent by telecopier.

8.2 TIME

     Time shall be of the essence of this Agreement.

8.3 GOVERNING LAW

     This  Agreement shall be governed by and interpreted in accordance with the
laws of the Province of Ontario.

8.4 SEVERABILITY

     If any provision  of this Agreement  is wholly or  partially invalid,  this
Agreement  shall be interpreted as if the invalid provision, or portion thereof,
had not been a part hereof so that such invalidity shall not affect the validity
of the remainder which shall be construed as if this Agreement had been executed
without the invalid portion; and  it is hereby declared  to be the intention  of
the  parties that this  Agreement would have been  executed without reference to
any portion which may, for any reason, hereafter be declared or held invalid.

8.5 FURTHER ASSURANCES

     The parties hereto agree to execute and deliver such further documents  and
do  such  things as  may  be necessary  in  order to  give  full effect  to this
Agreement.

                                       D-94


8.6 COUNTERPARTS

     This Agreement may be executed in any number of counterparts with the  same
effect  as  if  the  parties  hereto  had  all  signed  the  same  document. All
counterparts of this Agreement shall be construed together and shall  constitute
one instrument.

8.7 ASSIGNMENT

     This  Agreement may be assigned  by MDS to an  Affiliate of MDS. Subject to
the foregoing, this Agreement may not be assigned by any party without the prior
written consent of the other party.

8.8 SUCCESSORS AND ASSIGNS

     This Agreement  shall enure  to the  benefit  of and  be binding  upon  the
parties hereto and their respective successors and permitted assigns.

8.9 ENTIRE AGREEMENT

     This  Agreement constitutes the  entire agreement between  the parties with
respect to all of the matters herein and its execution has not been induced  by,
nor  do  any parties  rely upon  or  regard as  material, any  representation or
writing not incorporated herein and made a part hereof.

     IN WITNESS WHEREOF the parties have duly executed this Agreement.

                                         MDS LABORATORY SERVICES, L.P.
                                         by its general partner,
                                         MDS Laboratory Services Inc.

                                         Per:
                                         ---------------------------------------
                                          Authorized Signatory

                                         Per:
                                         ---------------------------------------
                                          Authorized Signatory

                                         MDS INC.

                                         Per:
                                         ---------------------------------------
                                          Authorized Signatory

                                         Per:
                                         ---------------------------------------
                                          Authorized Signatory

                                       D-95


                                   EXHIBIT 9
                          NEW HEMOSOL SHARE CONDITIONS

                                SHARE CONDITIONS

                                 HEMOSOL CORP.
                              (THE "CORPORATION")

1.   AUTHORIZED CAPITAL

     The Corporation is authorized to issue an unlimited number of common shares
(the "Common Shares") and  an unlimited number of  special shares (the  "Special
Shares").

     The  Common Shares  and the  Special Shares  of the  Corporation shall have
attached thereto the respective rights, privileges, restrictions and  conditions
hereinafter set forth.

2.   PROVISIONS ATTACHING TO THE COMMON SHARES

     The  Common  Shares  shall  have  attached  thereto  the  following rights,
privileges, restrictions and conditions:

2.1 DIVIDENDS

     The holders of the Common Shares shall be entitled to receive dividends if,
as and when declared  by the board  of directors of the  Corporation out of  the
assets  of the  Corporation properly applicable  to the payment  of dividends in
such amounts and payable in such manner as the board of directors may from  time
to  time determine. Subject to  the rights of the holders  of any other class of
shares of  the Corporation  entitled  to receive  dividends  in priority  to  or
rateably  with the holders of  the Common Shares, the  board of directors may in
their sole discretion declare dividends on the Common Shares to the exclusion of
any other class of shares of the Corporation.

2.2 PARTICIPATION ON LIQUIDATION

     In  the  event  of  the  dissolution,  liquidation  or  winding-up  of  the
Corporation  or other distribution of its  assets among its shareholders for the
purposes of winding  up its  affairs, the holders  of the  Common Shares  shall,
subject  to  the rights  of the  holders of  any  other class  of shares  of the
Corporation entitled  to receive  the  assets of  the  Corporation upon  such  a
distribution  in priority to or rateably with  the holders of the Common Shares,
be entitled  to  participate rateably  in  any  distribution of  assets  of  the
Corporation.

2.3 VOTING RIGHTS

     The holders of the Common Shares shall be entitled to receive notice of and
to   attend  all  annual  and  special  meetings  of  the  shareholders  of  the
Corporation, other than  separate meetings of  the holders of  another class  or
series  of shares, and to one vote in  respect of each Common Share held at such
meetings.

3.   PROVISIONS ATTACHING TO THE SPECIAL SHARES

     The Special  Shares  shall  have attached  thereto  the  following  rights,
privileges, restrictions and conditions:

3.1 DIRECTORS' AUTHORITY TO ISSUE ONE OR MORE SERIES

     The  board of directors of the Corporation  may issue the Special Shares at
any time and from time to time in one or more series. Before the first shares of
a particular series are  issued, the board of  directors of the Corporation  may
fix  the number  of shares in  such series  and shall determine,  subject to the
limitations set out in the articles of the Corporation, the designation, rights,
privileges, restrictions and conditions attaching to the shares of such  series,
including,   without  limitation,  (i)  the  rate(s),  amount  or  method(s)  of
calculation of dividends and whether  they are cumulative, partly cumulative  or
non-cumulative,  and whether  such rate(s),  amount or  method(s) of calculation
shall be subject to change  or adjustment in the  future; (ii) the date,  manner
and  currency of payments  of dividends and  the date from  which they accrue or
become payable; (iii) if redeemable  or purchasable, the redemption or  purchase
price  and  terms and  conditions  of redemption  or  purchase, with  or without
provision for purchase or similar funds; (iv) the voting rights, if any; (v) any
conversion, exchange or reclassification  rights; and (vi)  any other terms  not
inconsistent  with these provisions. Before  the issue of the  first shares of a
series, the board of directors of the Corporation shall send to the Director (as
defined in the Business Corporations Act (Ontario)) articles of amendment in the
prescribed  form  containing  a  description   of  such  series  including   the
designation,
                                       D-96


rights,  privileges,  restrictions and  conditions  determined by  the  board of
directors of the Corporation and  the issue of such  shares shall be subject  to
the issue by the Director of a certificate of amendment with respect thereto.

3.2 RANKING OF SPECIAL SHARES

     (a)  The  Special Shares of each series  shall, with respect to the payment
          of dividends  and the  distribution  of assets  in  the event  of  the
          dissolution,  liquidation or  winding-up of  the Corporation  or other
          distribution of its assets among its shareholders for the purposes  of
          winding  up its affairs, rank  on a parity with  the Special Shares of
          every other series.

     (b)  If any amount  of cumulative  dividends (whether or  not declared)  or
          declared  non-cumulative dividends or  any amount payable  on any such
          distribution of assets constituting a return of capital in respect  of
          the  Special Shares  of any  series is not  paid in  full, the Special
          Shares of  such series  shall participate  rateably with  the  Special
          Shares  of  every  other series  in  respect of  all  such accumulated
          cumulative dividends (whether or not  declared) and all such  declared
          non-cumulative  dividends  or all  such  amounts payable  on  any such
          distribution constituting a return of capital.

                                       D-97


                                   EXHIBIT 10
                CONSENTS, AUTHORIZATIONS ETC. OF THE CORPORATION

A.  CONSENTS WHICH ARE CONDITIONS

1.   TSX.

2.   NASDAQ.

3.   the Court.

4.   Commissioner of Competition under the Competition Act (Canada), as amended.

5.   Minister of National Defence ("DND") under the Amended and Restated Licence
     Agreement dated March 1, 1999 between the Corporation and DND.

6.   The Bank  under the  Commitment  Letter between  the  Bank as  lender,  the
     Corporation  as borrower  and MDS as  guarantor dated October  25, 2002, as
     amended, and all  documents and  agreements entered  in connection  thereto
     (including  security agreements),  as set  out in  the list  of Corporation
     Material Agreements in the Corporation Disclosure Letter.

B.  OTHER CONSENTS

1.   The holders of Options.

2.   Baxter Biotech  Technology S.a.r.l.  ("Baxter")  under the  Asset  Purchase
     Agreement dated October 18, 2000 between the Corporation and Baxter.

3.   SNC  Lavalin Inc. ("SNC  Lavalin") under the  Construction Contract between
     the Corporation and SNC Lavalin dated August 8, 2000, as amended.

                                       D-98


                                   EXHIBIT 11
                      CONSENTS, AUTHORIZATIONS ETC. OF MDS

REGULATORY

1.   Consent of the  Ministry of  Health (Ontario)  to the  cancellation of  the
     licences  currently issued under the Licensing Act to MDS in respect of the
     Labs Leased  Locations and  issuance  to the  Labs Limited  Partnership  of
     replacement licenses in respect of Labs Leased Locations transferred.

2.   Register  change  of name  with the  Ministry  of Environment  (Ontario) in
     connection with the  disposal of  biomedical waste  and hazardous  material
     waste by Labs Limited Partnership.

3.   Obtain Ontario Lab Accreditation for Labs Limited Partnership.

4.   Advance Ruling Certificate under the Competition Act (Canada).

MATERIAL AGREEMENTS

Nil.

                                       D-99


                                   EXHIBIT 12
                        CORPORATION INDEMNITY AGREEMENT

             THIS  AGREEMENT is made as of the   --  day of   --  ,
             2004

BETWEEN:

             HEMOSOL INC., a corporation governed under the laws of Ontario

             (THE "CORPORATION")

                                                               OF THE FIRST PART

                                           - and -

             HEMOSOL CORP., (the "GENERAL PARTNER") as general partner of and on
             behalf of Hemosol LP, a  limited partnership formed under the  laws
             of Ontario

             (the "BLOOD PRODUCTS LP")

                                                              OF THE SECOND PART

             WHEREAS  in connection with an arrangement agreement dated February
11, 2004 (the "ARRANGEMENT AGREEMENT") between the Corporation and MDS Inc., the
Corporation agreed to sell all  of its assets to the  Blood Products LP and  the
Blood  Products LP agreed to purchase  such assets and in consideration therefor
the Blood Products LP agreed to  issue partnership units to the Corporation  and
agreed  to  assume all  of  the liabilities  of  the Corporation  pursuant  to a
contribution agreement dated  the date  hereof between the  Corporation and  the
Blood Products LP (the "BLOOD PRODUCTS CONTRIBUTION AGREEMENT");

             AND   WHEREAS  as  a  condition   of  completing  the  transactions
contemplated by the Arrangement Agreement, the  Blood Products LP has agreed  to
indemnify  the  Corporation against  certain losses  it may  incur or  suffer in
accordance with the terms and conditions hereof;

             IN  CONSIDERATION  of  the  premises  and  the  covenants  in  this
Agreement,  and  for  other  good and  valuable  consideration  the  receipt and
sufficiency of which are acknowledged, the Corporation and the Blood Products LP
agree as follows:

1.   INTERPRETATION

1.1 DEFINITIONS

    In this Agreement,

    "AGREEMENT" means this indemnity agreement as it may be amended from time to
    time;

    "BLOOD PRODUCTS  ASSETS" means  all of  the assets  owned or  leased by  the
    Corporation immediately prior to the Effective Time;

    "BLOOD  PRODUCTS CONTRACTS" means all contracts  and agreements to which the
    Corporation was  a  party  or  otherwise  bound  immediately  prior  to  the
    Effective Time;

    "BLOOD   PRODUCTS  LIABILITIES"   means  all   liabilities  (contingent  and
    otherwise) and all other obligations of the Corporation immediately prior to
    the Effective Time;

    "BUSINESS" means the business and  operations carried on by the  Corporation
    and its Subsidiaries prior to the Effective Time;

    "BUSINESS  DAY" means any day  of the week other  than a Saturday, Sunday or
    statutory or civic holiday observed in Toronto, Ontario;

    "DIRECT CLAIM" means any demand, action, suit, proceeding or claim  asserted
    by  the Corporation or its Representatives for indemnity pursuant to Section
    2.1 which does not result from a Third Party Claim;

    "EFFECTIVE TIME" means 12:01 a.m. (Toronto time) on the date hereof;

                                      D-100


    "INCLUDING" and "INCLUDES" shall be deemed  to be followed by the  statement
    "without  limitation" and neither of such  terms shall be construed to limit
    any word or statement which it follows  to the specific or similar items  or
    matters immediately following it;

    "INDEMNITY  PAYMENT" means  any amount  of Loss required  to be  paid to the
    Corporation pursuant to this Agreement;

    "LOSS" means any  and all  loss, liability, damage,  cost, expense,  charge,
    fine, penalty or assessment, including the costs and expenses of any action,
    suit,  proceeding,  demand, assessment,  judgment, settlement  or compromise
    relating thereto and all interest, punitive damages, fines and penalties and
    reasonable legal  fees and  expenses incurred  in connection  therewith  but
    excluding loss of profits;

    "PARTY" means the Corporation or the Blood Products LP;

    "PERSON"  means any individual, partnership, limited partnership, syndicate,
    sole proprietorship, company or corporation, with or without share  capital,
    unincorporated  association,  trust,  trustee,  executor,  administrator, or
    other legal personal representative,  regulatory body or agency,  government
    or   governmental  agency,  authority  or   entity,  however  designated  or
    constituted;

    "PRIME RATE" for any day means the rate of interest expressed as a rate  per
    annum that Canadian Imperial Bank of Commerce establishes at its head office
    in Toronto, Ontario as the reference rate of interest that it will charge on
    that  day for Canadian  dollar demand loans  to its customers  in Canada and
    which it at present refers to as its prime rate;

    "REPRESENTATIVE" means each director,  officer, employee, agent,  solicitor,
    accountant,   professional   advisor   and  other   representative   of  the
    Corporation;

    "SUBSIDIARY" means  749235  Ontario  Limited, Hemosol  (USA)  Inc.,  Hemosol
    Research  Corporation and any other  corporation of which outstanding voting
    securities carrying at least 50% of the votes for the election of  directors
    are, or any general or limited partnership, joint venture or other entity at
    least  50% of whose total equity  interest is, directly or indirectly, owned
    or controlled by, the Corporation, prior to the Effective Time;

    "TAX" or "TAXES" means all federal, state, provincial, territorial,  county,
    municipal,  local or  foreign taxes,  duties, imposts,  levies, assessments,
    tariffs and other charges imposed,  assessed or collected by a  governmental
    authority  including, but not limited to,  (i) any gross income, net income,
    gross  receipts,  business,  royalty,  capital,  capital  gains,  goods  and
    services,  value  added, severance,  stamp, franchise,  occupation, premium,
    capital stock, sales and use, real property, personal property, ad  valorem,
    transfer,   license,  profits,  windfall  profits,  environmental,  payroll,
    employment,  employer  health,  pension  plan,  anti-dumping,   countervail,
    excise,  severance, stamp, occupation, or premium tax, (ii) all withholdings
    on amounts paid to or by a Person, (iii) all employment insurance  premiums,
    Canada,  Quebec and any  other pension plan  contributions or premiums, (iv)
    any fine,  penalty, interest,  or  addition to  tax,  (v) any  tax  imposed,
    assessed,  or collected or payable pursuant  to any tax-sharing agreement or
    any other contract relating to the sharing or payment of any such tax, levy,
    assessment, tariff, duty, deficiency, or fee, and (vi) any liability for any
    of the foregoing as a transferee, successor, guarantor, or by contract or by
    operation of law; and

    "THIRD PARTY  CLAIM"  means any  demand,  action, suit,  proceeding,  claim,
    assessment  or  judgment,  whether judicial,  administrative,  regulatory or
    otherwise, or settlement  or compromise relating  thereto, asserted  against
    the  Corporation or its Representatives by any  Person who is not a Party or
    an affiliate of  such a Party  in respect  of which the  Corporation or  its
    Representatives would be indemnified pursuant to Section 2.1.

1.2 INTERPRETATION NOT AFFECTED BY HEADINGS, ETC.

     The  division of this Agreement into  articles, sections and other portions
and the insertion of  headings are for convenience  of reference only and  shall
not affect the construction or interpretation of this Agreement.

1.3 NUMBER, ETC.

     Unless the subject matter or context requires the contrary, words importing
the  singular number  only shall  include the  plural and  vice versa  and words
importing the use of any gender shall include all genders.

                                      D-101


2.   INDEMNITY

2.1 INDEMNITY

     Subject to Section 5.1 hereof, the  Blood Products LP agrees to  indemnify,
defend  and save the  Corporation and each of  its Representatives harmless from
and  against  any  Loss  suffered  or   incurred  by  the  Corporation  or   its
Representatives   from  time  to  time  relating   to  any  matters,  events  or
circumstances preceding the Effective Time or as a direct or indirect result of,
or arising in connection with the following:

     (a) an act or omission of the  Corporation or its Representatives prior  to
         the  Effective Time, including  any act or  omission in connection with
         any clinical, pre-clinical and other studies and tests conducted by  or
         on  behalf of or sponsored  by the Corporation or  any Subsidiary or in
         which the  Corporation,  any  Subsidiary or  its  products  or  product
         candidates have participated;

     (b) the operation of the Business and the care and maintenance of the Blood
         Products  Assets after the Effective Time, including any failure by the
         Blood Products LP to pay, satisfy, discharge, perform or fulfil any  of
         the  Blood Products Liabilities after the  Effective Time or to perform
         its obligations under any of the Blood Products Contracts; and

     (c) any Loss resulting from section  -- of the Blood Products  Contribution
         Agreement.

2.2 AGENCY FOR REPRESENTATIVES

     The  Corporation agrees that it accepts each indemnity in favour of each of
its Representatives as agent and trustee of each such Representative. The  Blood
Products  LP agrees that the  Corporation may enforce an  indemnity in favour of
any Representative on behalf of that Representative.

3.   PROCEDURE REGARDING INDEMNITY

3.1 NOTICE OF THIRD PARTY CLAIMS

     If the Corporation receives notice of the commencement or assertion of  any
Third  Party Claim, the Corporation shall  give the Blood Products LP reasonably
prompt notice thereof, but in any event  no later than 30 days after receipt  of
such  notice  of  such Third  Party  Claim  (provided that  any  failure  by the
Corporation to so notify the  Blood Products LP of  any Third Party Claim  shall
not  relieve  the  Blood Products  LP  from any  liability  it may  have  to the
Corporation and any such failure will  affect the Blood Products LP's  liability
only  to the  extent that  it is  materially prejudiced  by such  failure). Such
notice to  the  Blood  Products LP  shall  describe  the Third  Party  Claim  in
reasonable  detail and shall indicate,  if reasonably practicable, the estimated
amount of the Loss that has been or may be sustained by the Corporation.

3.2 DEFENCE OF THIRD PARTY CLAIMS

     The Blood Products LP may participate in or assume the defence of any Third
Party Claim by giving notice to that effect to the Corporation not later than 15
days after receiving notice of that Third Party Claim (the "NOTICE PERIOD"). The
Blood Products LP's right to do so shall be subject to the rights of any insurer
or other party who has potential liability in respect of that Third Party Claim.
The Blood Products LP agrees to pay all of its own expenses of participating  in
or  assuming such defence. The Corporation shall co-operate in good faith in the
defence of each Third Party Claim, even  if the defence has been assumed by  the
Blood Products LP and may participate in such defence assisted by counsel of its
own  choice at its own  expense. The Blood Products LP  shall not enter into any
compromise or settlement of any Third Party  Claim which does not provide for  a
full  and final release of  the Corporation (with no  admission of liability) in
respect of such Third  Party Claim. If the  Corporation has not received  notice
within  the Notice Period that  the Blood Products LP  has elected to assume the
defence of such Third Party Claim, the Corporation may, at its option, elect  to
settle  or compromise the Third Party Claim  or assume such defence, assisted by
counsel of its own choosing  and the Blood Products LP  shall be liable for  all
reasonable  costs and expenses paid or  incurred in connection therewith and any
Loss suffered or incurred  by the Corporation with  respect to such Third  Party
Claim,  provided however that the Blood Products  LP shall not be liable for any
such Loss where the Corporation has settled or compromised the Third Party Claim
without the prior written consent of the Blood Products LP, such consent not  to
be unreasonably withheld.

                                      D-102


3.3 ASSISTANCE FOR THIRD PARTY CLAIMS

     The  Blood Products LP and the  Corporation will use all reasonable efforts
to make available to the Party which is undertaking and controlling the  defence
of any Third Party Claim (the "DEFENDING PARTY"),

     (a)  those  employees whose assistance, testimony  or presence is necessary
          to assist the Defending Party in evaluating and in defending any Third
          Party Claim; and

     (b)  all documents, records and other  materials in the possession of  such
          Party  reasonably  required  by the  Defending  Party for  its  use in
          defending any Third Party Claim,

and shall otherwise cooperate  with the Defending Party.  The Blood Products  LP
shall  be responsible  for all reasonable  expenses associated  with making such
documents, records and materials  available and for  all reasonable expenses  of
any  employees  made  available by  the  Corporation  to the  Blood  Products LP
hereunder, which expense  shall not exceed  the actual cost  to the  Corporation
associated with such employees.

3.4 SETTLEMENT OF THIRD PARTY CLAIMS

     If  the Blood Products LP  elects to assume the  defence of any Third Party
Claim as provided in Section 3.2, the Blood Products LP shall not be liable  for
any  legal expenses subsequently incurred by  the Corporation in connection with
the defence of such Third Party Claim.  However, if the Blood Products LP  fails
to  take reasonable steps necessary to  defend diligently such Third Party Claim
within 15 days after receiving notice from the Corporation that the  Corporation
bona  fide believes on reasonable grounds that  the Blood Products LP has failed
to take such  steps, the Corporation  may, at  its option, elect  to assume  the
defence of and to compromise or settle the Third Party Claim assisted by counsel
of its own choosing and the Blood Products LP shall be liable for all reasonable
costs  and  expenses  paid or  incurred  in  connection therewith  and  any Loss
suffered or incurred by the Corporation with respect to such Third Party  Claim,
provided  however that the  Blood Products LP  shall not be  liable for any such
Loss where the  Corporation has  settled or  compromised the  Third Party  Claim
without  the prior written consent of the Blood Products LP, such consent not to
be unreasonably withheld.

3.5 DIRECT CLAIMS

     Any Direct  Claim  shall  be  asserted by  giving  the  Blood  Products  LP
reasonably  prompt written notice  thereof, but in  any event not  later than 60
days after  the  Corporation becomes  aware  of  such Direct  Claim.  The  Blood
Products  LP shall  then have  a period of  30 days  within which  to respond in
writing to such  Direct Claim.  If the  Blood Products  LP does  not so  respond
within  such  30 day  period,  the Blood  Products LP  shall  be deemed  to have
rejected such Direct Claim, and in such  event the Corporation shall be free  to
pursue such remedies as may be available to the Corporation.

4.   PAYMENT

4.1 PAYMENT

     All  Losses shall bear interest at a rate per annum equal to the Prime Rate
plus 2% calculated  and payable monthly,  both before and  after judgment,  with
interest  on  overdue  interest  at  the  same  rate,  from  the  date  that the
Corporation or its Representatives disbursed funds in respect of a Loss, to  the
date   of  payment  by  the  Blood  Products   LP  to  the  Corporation  or  its
Representatives, as applicable.

4.2 TAX AND INSURANCE ADJUSTMENTS

     In connection with the amount of any  Losses paid by the Blood Products  LP
to  the  Corporation or  its Representatives,  as  applicable, pursuant  to this
Agreement, the Parties agree that such Losses shall be (i) reduced by the amount
of any insurance proceeds received by the Corporation or its Representatives, as
applicable, net of any Tax cost or benefit in respect of the receipt thereof, in
connection with such Losses, and if  such proceeds arise after payment has  been
made by the Blood Products LP hereunder, appropriate refunds will be made by the
Corporation  or  its  Representatives,  as  applicable  and  (ii)  increased  or
decreased to take into account any net  Tax cost or benefit incurred or  enjoyed
by  the  Corporation or  its Representatives,  as  applicable, arising  from the
incurring of such Losses and receipt of payment of the Losses (including any net
Tax cost resulting from such increase).

                                      D-103


5.   CLAIM AMOUNTS

5.1 AMOUNT OF CLAIMS

     The Corporation shall not be entitled  to make any claim against the  Blood
Products LP hereunder unless and until the aggregate amount of all Loss incurred
by  the Corporation and  its Representatives exceeds $50,000  in which event the
amount of all such Loss  including such $50,000 amount  may be recovered by  the
Corporation.

5.2 NO LIMITATION OF LIABILITY

     For  greater certainty, there shall be no limitation on the amount that may
be claimed by  the Corporation for  indemnity hereunder nor  shall there be  any
limitation  on the  amount of Losses  for which  the Blood Products  LP shall be
required to indemnify the Corporation.

6.   REPRESENTATIONS AND WARRANTIES

6.1 BLOOD PRODUCTS LP

     The Blood Products LP represents and warrants to the Corporation that:

     (a)  the Blood Products  LP has been  duly formed and  is validly  existing
          under  the laws of the Province of Ontario and the General Partner has
          the  power  and  authority  as  general  partner  under  the   limited
          partnership  agreement  governing the  Blood  Products LP  to  own the
          properties and  conduct  the business  of  the Blood  Products  LP  as
          presently  owned and  conducted and  to act for  and on  behalf of the
          Blood Products LP, including  the execution, delivery and  performance
          of this Agreement on behalf of the Blood Products LP;

     (b)  the  General Partner has been duly  incorporated under the laws of the
          Province of Ontario, is validly  existing and has the corporate  power
          and  authority  to  own its  properties  and conduct  its  business as
          presently owned and conducted;

     (c)  the execution and delivery of this Agreement and the compliance by the
          Blood Products  LP  with  its  terms and  provisions  have  been  duly
          authorized  by the  board of directors  of the General  Partner of the
          Blood Products LP;

     (d)  no other corporate proceedings on the part of the Blood Products LP or
          the General Partner thereof are necessary to authorize this  Agreement
          or  the  compliance  by  the  Blood Products  LP  with  its  terms and
          provisions;

     (e)  this Agreement constitutes a valid, binding and enforceable obligation
          of  the  Blood   Products  LP,  subject   to  applicable   bankruptcy,
          reorganization,   insolvency,  moratorium  and  other  laws  affecting
          creditors' rights generally  from time to  time in effect  and, as  to
          enforceability, general equitable principles;

     (f)  no  authorization,  consent,  or  approval  of,  or  filing  with, any
          domestic or  foreign public  body  or authority  not already  made  or
          obtained is necessary for the consummation by the Blood Products LP of
          the transactions contemplated by this Agreement or for the fulfillment
          of the terms hereof; and

     (g)  neither   the  execution  and  delivery  of  this  Agreement  nor  the
          compliance by the Blood Products LP with its terms and provisions will
          violate any  provision of  the limited  partnership agreement  of  the
          Blood  Products  LP or  any mortgage,  lien, lease,  judgment, decree,
          indenture, agreement, law, statute, regulation or other restriction to
          which the Blood Products LP is bound.

7.   GENERAL

7.1 SURVIVAL

     The indemnities provided for in this Agreement shall survive the  Effective
Date.

7.2 APPLICABLE LAW AND SUBMISSION TO JURISDICTION

     This  Agreement  shall  be governed  by,  and interpreted  and  enforced in
accordance with, the  laws in force  in the Province  of Ontario (excluding  any
conflict  of laws rule or  principle which might refer  such construction to the
laws  of  another   jurisdiction).  Each  Party   irrevocably  submits  to   the
non-exclusive  jurisdiction of the courts of  Ontario with respect to any matter
related hereto.

                                      D-104


7.3 RIGHTS IN ADDITION

     The rights of  indemnity set forth  in this Agreement  are in addition  and
supplemental  to any other rights, actions, claims or causes of action which may
arise in respect  of the Arrangement  Agreement and the  transactions and  other
agreements contemplated thereby.

7.4 NOTICE

     All  notices and  other communications  hereunder shall  be in  writing and
shall be delivered to the Parties at the following addresses or sent by telecopy
at the following  telecopier numbers or  at such other  addresses or  telecopier
numbers as shall be specified by the Parties by like notice:

    to the Blood Products LP at:

     2585 Meadowpine Blvd.
     Mississauga, Ontario
     L5N 8H9
     Attention: Chief Executive Officer
     Facsimile No.: 905 286 6300

     to the Corporation at:

     100 International Boulevard
     Toronto, Ontario
     M9W 6J6
     Attention:         --
     Facsimile No.:    --

     The  date of receipt of any  such notice shall be deemed  to be the date of
delivery thereof  or, in  the  case of  notice sent  by  telecopy, the  date  of
successful  transmission thereof  (unless transmission is  received after normal
business hours, in which case the date of receipt shall be deemed to be the next
Business Day).  Addresses  for  notice  may  be  changed  by  giving  notice  in
accordance with this section.

7.5 SUCCESSORS AND ASSIGNS

     This  Agreement  shall enure  to the  benefit  of and  be binding  upon the
Parties and their respective successors. This  Agreement may not be assigned  by
the  Corporation. This Agreement  may not be  assigned by the  Blood Products LP
without the prior written consent of the Corporation.

                                      D-105


     IN WITNESS WHEREOF the Parties hereto have duly executed this Agreement  as
of the date first above written.

                                         HEMOSOL INC.

                                         By:
                                          --------------------------------------
                                          Name:
                                          Title:

                                         By:
                                          --------------------------------------
                                          Name:
                                          Title:

                                         HEMOSOL CORP., as general
                                         partner of and on behalf
                                         of Hemosol LP

                                         By:
                                          --------------------------------------
                                          Name:
                                          Title:

                                         By:
                                          --------------------------------------
                                          Name:
                                          Title:

                                      D-106


                                   EXHIBIT 13
                            MDS INDEMNITY AGREEMENT

                              INDEMNITY AGREEMENT

             THIS  AGREEMENT is made as of the   --  day of   --  ,
             2004

BETWEEN:

             MDS INC., a corporation governed under the laws of Canada

             (the "INDEMNIFIED PARTY")

                                                               OF THE FIRST PART

                                           - and -

             HEMOSOL CORP., a corporation governed under the laws of Ontario

             (the "INDEMNIFYING PARTY")

                                                              OF THE SECOND PART

                                           - and -

             HEMOSOL INC., a corporation governed under the laws of Ontario (the
             "CORPORATION")

                                                               OF THE THIRD PART

             WHEREAS in connection with an arrangement agreement dated  February
11,   2004  (the  "ARRANGEMENT  AGREEMENT")  between  the  Corporation  and  the
Indemnified Party, (a)  the Indemnified  Party has  agreed to  sell its  limited
partnership interest in MDS Laboratory Services, L.P. to the Corporation and the
Corporation  has agreed  to purchase such  limited partnership  interest and has
agreed to issue  Class A  common shares  and Class  B non-voting  shares in  the
capital  of the Corporation  as consideration therefor,  and (b) the Corporation
has agreed to sell all  of its assets to Hemosol  LP, of which the  Indemnifying
Party  is the general partner, and Hemosol LP has agreed to purchase such assets
and in consideration therefor Hemosol LP  has agreed to issue partnership  units
to  the  Corporation and  has agreed  to assume  all of  the liabilities  of the
Corporation pursuant to a contribution  agreement dated the date hereof  between
the Corporation and Hemosol LP;

             AND   WHEREAS  as  a  condition   of  completing  the  transactions
contemplated by the Arrangement Agreement, the Indemnifying Party has agreed  to
indemnify the Indemnified Party against certain losses it may incur or suffer in
accordance with the terms and conditions hereof;

             IN  CONSIDERATION  of  the  premises  and  the  covenants  in  this
Agreement, and  for  other  good  and valuable  consideration  the  receipt  and
sufficiency of which are acknowledged, the Parties agree as follows:

1.   INTERPRETATION

1.1 DEFINITIONS

    IN THIS AGREEMENT,

    "AGREEMENT" means this indemnity agreement as it may be amended from time to
    time;

    "BUSINESS  DAY" means any day  of the week other  than a Saturday, Sunday or
    statutory or civic holiday observed in Toronto, Ontario;

    "CCRA" means Canada Customs and Revenue Agency or its successor;

    "DEFENCE COSTS"  means all  reasonable costs  and expenses  incurred by  the
    Corporation in connection with the defence of a Third Party Claim;

                                      D-107


    "DIRECT  CLAIM" means any demand, action, suit, proceeding or claim asserted
    by the Indemnified Party for indemnity pursuant to Section 2 which does  not
    result from a Third Party Claim;

    "EFFECTIVE TIME" means 12:01 a.m. (Toronto time) on the date hereof;

    "FEDERAL  INVESTMENT TAX CREDITS" means the  amount determined in respect of
    the Corporation  under  subsection 127(9)  of  the  Federal Tax  Act  as  at
    December 31, 2003;

    "FEDERAL  NON-CAPITAL LOSSES" means the  amounts determined under subsection
    111(8) of the Federal Tax Act in  respect of the Corporation for its  period
    ending  December 31, 2003 and for its six (6) taxation years ending prior to
    December 31, 2003;

    "FEDERAL SCIENTIFIC RESEARCH AND EXPERIMENTAL DEVELOPMENT DEDUCTIONS"  means
    the maximum amount deductible by the Corporation in computing its income for
    the  taxation year ending December 31,  2003 pursuant to subsection 37(1) of
    the Federal Tax Act;

    "FEDERAL TAX ACT" means the Income Tax Act (Canada), as amended;

    "FINANCING COSTS" means amounts incurred on or before December 31, 2003  and
    which  are deductible  in computing  income of  the Corporation  pursuant to
    paragraph 20(1)(e) of the Federal Tax  Act in periods ending after  December
    31, 2003;

    "HEMOSOL  LP" means Hemosol LP, a  limited partnership formed under the laws
    of Ontario;

    "INCLUDING" and "INCLUDES" shall be deemed  to be followed by the  statement
    "without  limitation" and neither of such  terms shall be construed to limit
    any word or statement which it follows  to the specific or similar items  or
    matters immediately following it;

    "INDEMNIFIABLE EVENT" has the meaning provided in Section 2;

    "LIABILITY CAP" means $16,000,000;

    "LOSS" means:

    (a)  in the case of Indemnifiable Events specified in Subsections 2.1(a) and
         (b), Loss as calculated in accordance with Sections 6.1 and 6.2;

    (b)  in  the case of the Indemnifiable Event specified in Subsection 2.1(c),
         Taxes which the  Corporation is  required to pay  as a  result of  such
         Indemnifiable Event; and

    (c)  in  the case of the Indemnifiable Event specified in Subsection 2.1(d),
         Loss as calculated in  accordance with Sections 6.1  and 6.2 and  Taxes
         which  the  Corporation  is  required  to  pay  as  a  result  of  such
         Indemnifiable Event, as applicable;

    "ONTARIO FINANCING COSTS" means amounts  incurred on or before December  31,
    2003  and which  are deductible in  computing income of  the Corporation for
    purposes of the Ontario Tax Act,  by reference to paragraph 20(1)(e) of  the
    Federal Tax Act, in periods ending after December 31, 2003;

    "ONTARIO  SCIENTIFIC RESEARCH AND EXPERIMENTAL DEVELOPMENT DEDUCTIONS" means
    the maximum amount deductible by the Corporation in computing its income for
    the taxation year ending December 31,  2003 for purposes of the Ontario  Tax
    Act, by reference to subsection 37(1) of the Federal Tax Act;

    "ONTARIO  NON-CAPITAL LOSSES" means  the amounts determined  for purposes of
    the Ontario Tax Act,  by reference to subsection  111(8) of the Federal  Tax
    Act,  in respect of the Corporation for  its period ending December 31, 2003
    and for its six (6) taxation years ending prior to December 31, 2003;

    "ONTARIO TAX ACT" means the Corporations Tax Act (Ontario), as amended;

    "ONTARIO TERMINAL LOSS" means the terminal loss that will be realized by the
    Corporation, determined  for  the  purposes  of  the  Ontario  Tax  Act,  by
    reference to subsection 20(16) of the Federal Tax Act, on the disposition of
    the  building  located at  2585 Meadowpine  Blvd., Mississauga,  Ontario and
    certain other  depreciable  property  in  connection  with  the  Arrangement
    Agreement;

    "PARTY"   means  the  Indemnified  Party,  the  Indemnifying  Party  or  the
    Corporation;
                                      D-108


    "PERSON" means any individual, partnership, limited partnership,  syndicate,
    sole  proprietorship, company or corporation, with or without share capital,
    unincorporated association,  trust,  trustee,  executor,  administrator,  or
    other  legal personal representative, regulatory  body or agency, government
    or  governmental  agency,  authority   or  entity,  however  designated   or
    constituted;

    "PRIME  RATE" for any day means the rate of interest expressed as a rate per
    annum that Canadian Imperial Bank of Commerce establishes at its head office
    in Toronto, Ontario as the reference rate of interest that it will charge on
    that day for  Canadian dollar demand  loans to its  customers in Canada  and
    which it at present refers to as its prime rate;

    "SUBSIDIARY"  means  749235  Ontario Limited,  Hemosol  (USA)  Inc., Hemosol
    Research Corporation and any other  corporation of which outstanding  voting
    securities  carrying at least 50% of the votes for the election of directors
    are, or any general or limited partnership, joint venture or other entity at
    least 50% of whose total equity  interest is, directly or indirectly,  owned
    or controlled by, the Corporation, prior to the Effective Time;

    "TAX"  or "TAXES" means all federal, state, provincial, territorial, county,
    municipal, local  or foreign  taxes, duties,  imposts, levies,  assessments,
    tariffs  and other charges imposed, assessed  or collected by a governmental
    authority including, but not limited to,  (i) any gross income, net  income,
    gross  receipts,  business,  royalty,  capital,  capital  gains,  goods  and
    services, value  added, severance,  stamp, franchise,  occupation,  premium,
    capital  stock, sales and use, real property, personal property, ad valorem,
    transfer,  license,  profits,  windfall  profits,  environmental,   payroll,
    employment,   employer  health,  pension  plan,  anti-dumping,  countervail,
    excise, severance, stamp, occupation, or premium tax, (ii) all  withholdings
    on  amounts paid to or by a Person, (iii) all employment insurance premiums,
    Canada, Quebec and any  other pension plan  contributions or premiums,  (iv)
    any  fine,  penalty, interest,  or  addition to  tax,  (v) any  tax imposed,
    assessed, or collected or payable  pursuant to any tax-sharing agreement  or
    any other contract relating to the sharing or payment of any such tax, levy,
    assessment, tariff, duty, deficiency, or fee, and (vi) any liability for any
    of the foregoing as a transferee, successor, guarantor, or by contract or by
    operation of law;

    "TERMINAL  LOSS" means  the loss that  will be realized  by the Corporation,
    determined under subsection 20(16) of the Federal Tax Act on the disposition
    of the building located at  2585 Meadowpine Blvd., Mississauga, Ontario  and
    certain  other  depreciable  property  in  connection  with  the Arrangement
    Agreement; and

    "THIRD PARTY  CLAIM"  means any  demand,  action, suit,  proceeding,  claim,
    assessment  or  judgment,  whether judicial,  administrative,  regulatory or
    otherwise, or settlement  or compromise relating  thereto, asserted  against
    the  Corporation by an  applicable taxing authority in  respect of which the
    Indemnified Party would be indemnified pursuant to Section 2.

1.2 INTERPRETATION NOT AFFECTED BY HEADINGS, ETC.

     The division of this Agreement  into articles, sections and other  portions
and  the insertion of headings  are for convenience of  reference only and shall
not affect the construction or interpretation of this Agreement.

1.3 NUMBER, ETC.

     Unless the subject matter or context requires the contrary, words importing
the singular  number only  shall include  the plural  and vice  versa and  words
importing the use of any gender shall include all genders.

2. INDEMNITY

     Subject  to Section 5  hereof, the Indemnifying  Party agrees to indemnify,
defend and  save  the Indemnified  Party  harmless  from and  against  any  Loss
suffered or incurred by the Indemnified Party, directly or indirectly, from time
to  time  relating to  or  arising in  connection  with the  following  (each an
"INDEMNIFIABLE EVENT"):

     (a)  there having been an acquisition  of control of the Corporation  prior
          to the date hereof for purposes of the Federal Tax Act.

                                      D-109


     (b)  any  one or more of the amounts determined, in the manner specified in
          Section 6.2, in respect of the  Corporation under column A being  less
          than the amounts set out beside it in column B:

<Table>
<Caption>
                             A                                     B
                             -                                ------------
                                                           
The excess of the aggregate of the Federal Non-Capital
Losses, the Federal Scientific Research and Experimental
Development Deductions, the Financing Costs, and the amount
of the Terminal Loss over the income inclusion arising from
the disposition of eligible capital property to Hemosol LP
pursuant to the Arrangement Agreement.......................  $268,133,712
The excess of the aggregate of the Ontario Non-Capital
Losses, the Ontario Scientific Research and Experimental
Development Deductions, the Ontario Financing Costs, and the
amount of the Ontario Terminal Loss over the income
inclusion arising for the purposes of the Ontario Tax Act
from the disposition of eligible capital property to Hemosol
LP pursuant to the Arrangement Agreement....................  $284,659,490
Federal Investment Tax Credits..............................  $ 32,923,254
</Table>

     (c)  a  deemed dividend arising on the redemption of the Class C Shares (as
          defined in the Arrangement Agreement)  of the Corporation as a  result
          of  the paid up capital (within the meaning of the Federal Tax Act) of
          the Common Shares (as defined in the Arrangement Agreement) being less
          than $200,000,000 as at the date hereof.

     (d)  any of the factual statements in respect of the Corporation in any  of
          the  submissions made by  the Indemnified Party to  CCRA in respect of
          the application  for the  Tax Ruling  (as defined  in the  Arrangement
          Agreement), the Tax Ruling or the Supplemental Submissions (as defined
          in  the Arrangement Agreement) or any factual statements in respect of
          the Corporation or its Subsidiaries in  the Tax Ruling not being  true
          and  correct in all  material respects or there  being any omission to
          state a material fact that is required to make a statement therein  in
          respect of the Corporation or its Subsidiaries not misleading.

3. PROCEDURE REGARDING INDEMNITY

3.1 NOTICE OF THIRD PARTY CLAIMS

     If  the Corporation receives notice of the commencement or assertion of any
Third Party Claim, the Corporation  shall give reasonably prompt notice  thereof
(a  "THIRD  PARTY CLAIM  NOTICE")  to each  of  the Indemnifying  Party  and the
Indemnified Party, but in any event no later than 15 days after receipt of  such
notice  of such Third Party Claim (provided  that any failure by the Corporation
to so notify the Indemnifying Party of  any Third Party Claim shall not  relieve
the Indemnifying Party from any liability it may have to the Indemnified Party).
Such  notice shall describe the Third Party Claim in reasonable detail and shall
indicate, if reasonably practicable, the estimated  amount of the Loss that  has
been or may be sustained by the Indemnifying Party.

3.2 DEFENCE AND SETTLEMENT OF THIRD PARTY CLAIMS

     Upon  receipt of a  Third Party Claim Notice,  the Indemnifying Party shall
have 15 days to elect to either (a) pay to the Indemnified Party the full amount
of the  Loss determined  as if  the Third  Party Claim  were successful  in  its
entirety,  in which  case the  Indemnifying Party shall  pay such  amount to the
Indemnified  Party  promptly  after  making  such  election,  or  (b)  fund  the
Corporation for one-sixth of the Defence Costs, to a maximum amount equal to the
Loss  in respect of the Third Party Claim (the "INDEMNIFYING PARTY PORTION"). On
or before the expiry of such 15-day period, the Indemnifying Party shall  notify
each  of  the  other Parties  in  writing  of its  election,  failing  which the
Indemnifying Party shall be deemed to have elected option (b).

     If the Indemnifying Party elects, or is deemed to have elected, option (b),
the Indemnified Party  shall have  15 days  from the  date of  such election  or
deemed  election to elect  to either (c) determine  that it is  not in favour of
having the Third  Party Claim defended  in which  case it shall  be entitled  to
payment from the Indemnifying Party of the full amount of the Loss determined as
if  the  Third Party  Claim  were successful  in its  entirety  or (d)  fund the
Corporation for the  Defence Costs less  the Indemnifying Party  Portion. On  or
before the expiry of such 15-day

                                      D-110


period,  the Indemnified Party shall notify each of the other Parties in writing
of its election,  failing which the  Indemnified Party shall  be deemed to  have
elected option (d).

     If  the Indemnifying Party elects, or is deemed to have elected, option (b)
and the Indemnified  Party elects,  or is deemed  to have  elected, option  (d),
then:  (i)  unless  otherwise  agreed between  the  Indemnifying  Party  and the
Indemnified Party  in  writing,  such  Parties  shall  continue  to  fund  their
respective  portion of  the Defence Costs  until such  time as there  has been a
final determination of the Third Party Claim by the applicable taxing  authority
or  a court  of competent  jurisdiction from which  no appeal  may be  made or a
settlement has been reached  between the Corporation  and the applicable  taxing
authority  with respect  to such  Third Party  Claim, which  settlement has been
entered into at the sole  discretion of the Corporation;  and (ii) if the  Third
Party Claim is not successfully defended in whole or in part and the Indemnified
Party suffers a Loss, the Loss payable hereunder by the Indemnifying Party shall
be  reduced by the amount of the Indemnifying Party Portion of the Defence Costs
incurred by the Indemnifying Party in respect of that Third Party Claim.

     If the Indemnifying Party elects option (a), then (i) the Indemnified Party
and the Corporation may, but shall  not be obligated to, make such  arrangements
as  they may agree with respect to the defence of such Third Party Claim and the
funding of the  reasonable costs  and expenses  incurred by  the Corporation  in
connection  with such defence and (ii) should the Third Party Claim subsequently
be successfully defended, in whole or in part, the Indemnified Party shall  have
no obligation to account to the Indemnifying Party for any benefit received as a
result  of  such  successful  defence  or  to  refund  the  amount  paid  by the
Indemnifying Party on its electing option (a).

3.3 ASSISTANCE FOR THIRD PARTY CLAIMS

     The Indemnifying Party will use all reasonable efforts to make available to
the Corporation and the Indemnified Party, at the Indemnifying Party's cost:

     (a)  those employees whose assistance,  testimony or presence is  necessary
          to  assist the  Corporation in evaluating  and in  defending any Third
          Party Claim; and

     (a)  (b) all documents, records  and other materials  in the possession  of
          such  Party  reasonably required  by the  Corporation  for its  use in
          defending any Third Party Claim,

and shall otherwise co-operate with the Corporation and the Indemnified Party in
the defence of any Third Party Claim.

3.4 DIRECT CLAIMS

     Any Direct Claim  shall be  asserted by  the Indemnified  Party giving  the
Indemnifying  Party reasonably prompt  written notice thereof,  but in any event
not later than 60 days after the later of the date that the Corporation  becomes
aware  of or  suffers or  incurs a  Loss in  respect of  such Direct  Claim. The
Indemnifying Party shall then have a period  of 30 days within which to  respond
in  writing to such Direct Claim. If  the Indemnifying Party does not so respond
within such  30 day  period, the  Indemnifying  Party shall  be deemed  to  have
rejected  such Direct Claim,  and in such  event the Indemnified  Party shall be
free to pursue such remedies as may be available to the Indemnified Party.

4.   PAYMENT

4.1 PAYMENT

     All Losses shall bear interest at a rate per annum equal to the Prime  Rate
plus  2% calculated  and payable monthly  from the  date a Third  Party Claim or
Direct Claim,  as the  case  may be,  is made  to  the date  of payment  by  the
Indemnifying Party to the Indemnified Party.

4.2 TAX ADJUSTMENTS

     In  connection with the amount of any Losses paid by the Indemnifying Party
to the Indemnified Party pursuant to this Agreement, the Parties agree that such
Losses shall be increased or decreased to take into account any net Tax cost  or
benefit  incurred or enjoyed by the Indemnified Party arising from the incurring
of such Losses and receipt of payment of the Losses (including any net Tax  cost
resulting from such increase).

                                      D-111


5.   LIMIT ON INDEMNITY

5.1 AMOUNT OF CLAIMS

     The  Indemnified Party shall not be entitled  to make any claim against the
Indemnifying Party hereunder unless and until the aggregate amount of all Losses
incurred by the Indemnified Party exceeds,

     (a)  $3,000,000 in the case of all Losses determined under Section 6.2; or

     (b)  $50,000 in the case of all Losses not determined under Section 6.2;

     in which event the amount of  all such Losses including such $3,000,000  or
$50,000 amount, as the case may be, will be payable to the Indemnified Party.

5.2 LIMITS OF LIABILITY

     The   maximum  aggregate  liability  of   the  Indemnifying  Party  to  the
Indemnified Party for all Losses under this Agreement and all Defence Costs paid
by the Indemnifying Party  under Section 3.2 hereof  shall not in the  aggregate
exceed the Liability Cap.

6.   CALCULATION OF CERTAIN LOSSES

6.1 INABILITY OF CORPORATION TO USE TAX LOSSES

     Subject  to Section 5.2, in the case of an Indemnifiable Event described in
Subsections 2(a) or  (d) of  this Agreement,  the result  of which  is that  the
ability of the Corporation to utilize:

     (a)  all  of its  Federal Non-Capital  Losses, Ontario  Non-Capital Losses,
          Federal Scientific Research  and Experimental Development  Deductions,
          Ontario Scientific Research and Experimental Development Deductions or
          Federal  Investment Tax  Credits is restricted,  the Indemnified Party
          shall be deemed  to have suffered  a Loss  in an amount  equal to  the
          Liability Cap; and

     (b)  some   but  not  all  of   its  Federal  Non-Capital  Losses,  Ontario
          Non-Capital  Losses,  Federal  Scientific  Research  and  Experimental
          Development  Deductions, Ontario Scientific  Research and Experimental
          Development Deductions,  Federal  Investment  Tax  Credits,  Financing
          Costs, or Ontario Financing Costs is restricted, the Indemnified Party
          shall  be deemed to have suffered a Loss calculated in accordance with
          the provisions of Section 6.2, treating the amount(s) so restricted as
          a reduction of the applicable amount specified in paragraphs (a),  (b)
          and/or (c) of Section 6.2.

6.2 REDUCTION OF TAX LOSS BALANCES

     Subject to Section 5.2:

     (a)  if  the amount set  out in row one  of column B  in Subsection 2(b) of
          this Agreement  is  greater than  the  amount finally  determined  for
          column  A by or by agreement  with the applicable taxing authority, or
          by a  judgment of  a court  of competent  jurisdiction from  which  no
          appeal  may be  made, or  by agreement  between the  parties, the Loss
          shall be deemed  to be  an amount equal  to the  excess multiplied  by
          $0.029;

     (b)  if  the amount set  out in row two  of column B  in Subsection 2(b) of
          this Agreement  is  greater than  the  amount finally  determined  for
          column  A by or by agreement  with the applicable taxing authority, or
          by a  judgment of  a court  of competent  jurisdiction from  which  no
          appeal  may be  made, or  by agreement  between the  parties, the Loss
          shall be deemed  to be  an amount equal  to the  excess multiplied  by
          $0.018; and

     (c)  if  the amount set out in row three  of column B in Subsection 2(b) of
          this Agreement  is  greater than  the  amount finally  determined  for
          column  A by or by agreement  with the applicable taxing authority, or
          by a  judgment of  a court  of competent  jurisdiction from  which  no
          appeal  may be  made, or  by agreement  between the  parties, the Loss
          shall be deemed  to be  an amount equal  to the  excess multiplied  by
          $0.088.

                                      D-112


7.   REPRESENTATIONS AND WARRANTIES

7.1 INDEMNIFYING PARTY

     The  Indemnifying Party  represents and  warrants to  the Indemnified Party
that:

     (a)  the Indemnifying Party has  been duly incorporated  under the laws  of
          the  Province of  Ontario, is validly  existing and  has the corporate
          power and authority to own its properties and conduct its business  as
          presently owned and conducted;

     (b)  the execution and delivery of this Agreement and the compliance by the
          Indemnifying  Party  with  its  terms and  provisions  have  been duly
          authorized by the  board of directors  of the General  Partner of  the
          Indemnifying Party;

     (c)  no  other corporate proceedings on the  part of the Indemnifying Party
          or the  General  Partner  thereof  are  necessary  to  authorize  this
          Agreement  or the compliance by the  Indemnifying Party with its terms
          and provisions;

     (d)  this Agreement constitutes a valid, binding and enforceable obligation
          of  the  Indemnifying   Party,  subject   to  applicable   bankruptcy,
          reorganization,   insolvency,  moratorium  and  other  laws  affecting
          creditors' rights generally  from time to  time in effect  and, as  to
          enforceability, general equitable principles;

     (e)  no  authorization,  consent,  or  approval  of,  or  filing  with, any
          domestic or  foreign public  body  or authority  not already  made  or
          obtained  is necessary for the  consummation by the Indemnifying Party
          of  the  transactions  contemplated  by  this  Agreement  or  for  the
          fulfillment of the terms hereof; and

     (f)  neither   the  execution  and  delivery  of  this  Agreement  nor  the
          compliance by the  Indemnifying Party  with its  terms and  provisions
          will  violate  any  provision  of  the  articles  and  by-laws  of the
          Indemnifying Party  or any  mortgage, lien,  lease, judgment,  decree,
          indenture, agreement, law, statute, regulation or other restriction to
          which the Indemnifying Party is bound.

8.   GENERAL

8.1 SURVIVAL

     The  indemnities provided for in this Agreement shall survive the Effective
Date, provided that the Indemnifying Party shall have no obligation to indemnify
the Indemnified Party hereunder  in respect of any  Direct Claim or Third  Party
Claim  made by the Indemnified  Party after the seventh  anniversary of the date
hereof.

8.2 APPLICABLE LAW AND SUBMISSION TO JURISDICTION

     This Agreement  shall  be governed  by,  and interpreted  and  enforced  in
accordance  with, the laws  in force in  the Province of  Ontario (excluding any
conflict of laws rule  or principle which might  refer such construction to  the
laws   of  another  jurisdiction).   Each  Party  irrevocably   submits  to  the
non-exclusive jurisdiction of the courts of  Ontario with respect to any  matter
related hereto.

8.3 RIGHTS IN ADDITION

     The  rights of indemnity  set forth in  this Agreement are  in addition and
supplemental to any other rights, actions, claims or causes of action which  may
arise  in respect  of the Arrangement  Agreement and the  transactions and other
agreements contemplated thereby.

8.4 NOTICE

     All notices  and other  communications hereunder  shall be  in writing  and
shall be delivered to the Parties at the following addresses or sent by telecopy
at  the following  telecopier numbers or  at such other  addresses or telecopier
numbers as shall be specified by the Parties by like notice:

    to the Indemnifying Party at:

     2585 Meadowpine Blvd.
     Mississauga, Ontario
     L5N 8H9
     Attention: Chief Executive Officer
     Facsimile No.: 905 286 6300

                                      D-113


    to the Indemnified Party at:

    100 International Boulevard
     Toronto, Ontario
     M9W 6J6
     Attention:         --
     Facsimile No.:    --

     to the Corporation at:
     100 International Boulevard
     Toronto, Ontario
     M9W 6J6
     Attention:         --
     Facsimile No.:    --

     The date of receipt of  any such notice shall be  deemed to be the date  of
delivery  thereof  or, in  the  case of  notice sent  by  telecopy, the  date of
successful transmission thereof  (unless transmission is  received after  normal
business hours, in which case the date of receipt shall be deemed to be the next
Business  Day).  Addresses  for  notice  may  be  changed  by  giving  notice in
accordance with this section.

8.5 SUCCESSORS AND ASSIGNS

     This Agreement  shall enure  to the  benefit  of and  be binding  upon  the
Parties  and their respective successors. This  Agreement may not be assigned by
the Corporation or by the Indemnified Party. This Agreement may not be  assigned
by  the Indemnifying Party without the  prior written consent of the Indemnified
Party.

                                      D-114


     IN WITNESS WHEREOF the Parties hereto have duly executed this Agreement  as
of the date first above written.

                                         MDS INC.

                                         By:
                                          --------------------------------------
                                          Name:
                                          Title:

                                         By:
                                          --------------------------------------
                                          Name:
                                          Title:

                                         HEMOSOL CORP.

                                         By:
                                          --------------------------------------
                                          Name:
                                          Title:

                                         By:
                                          --------------------------------------
                                          Name:
                                          Title:

                                         HEMOSOL INC.

                                         By:
                                          --------------------------------------
                                          Name:
                                          Title:

                                         By:
                                          --------------------------------------
                                          Name:
                                          Title:
                                      D-115


                        ANNEX E -- KPMG FAIRNESS OPINION

LOGO

The Independent Committee
and the Board of Directors
Hemosol Inc.
2585 Meadowpine Blvd.
Mississauga, Ontario
L5N 8H9

February 11, 2004

TO THE INDEPENDENT COMMITTEE AND THE BOARD OF DIRECTORS

     KPMG   Corporate  Finance  Inc.  ("KPMG")  understands  that  Hemosol  Inc.
("Hemosol") proposes  to implement  a plan  of arrangement  (the  "Arrangement")
under   the  Business   Corporations  Act   (Ontario)  involving   Hemosol,  its
securityholders and MDS Inc. ("MDS") the purpose of which is to allow  Hemosol's
business  to exchange, in  effect, its existing  accumulated tax losses, certain
undeducted capital expenditures and  tax credits (the "Tax  Losses") for a  cash
infusion  indirectly  funded  by  MDS  and  certain  other  consideration.  KPMG
understands that the  Arrangement is to  be carried out  in accordance with  the
arrangement  agreement  dated February  11, 2004  between  Hemosol and  MDS (the
"Arrangement Agreement").

     KPMG has  been  engaged  by  the Independent  Committee  of  the  Board  of
Directors  of Hemosol (the  "Independent Committee") to review  the terms of the
Arrangement and  to provide  the Board  of Directors  of Hemosol  (the  "Hemosol
Board")  with an opinion as to the fairness of the Arrangement, from a financial
point of view, to the shareholders, warrantholders and holders of broker options
of Hemosol  (collectively,  the  "Securityholders"),  other  than  MDS  and  its
affiliates (the "Fairness Opinion"). KPMG was not engaged to prepare and did not
prepare a formal valuation in connection with this Fairness Opinion.

     KPMG   understands  that  this  Fairness  Opinion   will  be  sent  to  the
Securityholders as a part  of a management  information circular describing  the
Arrangement (the "Circular").

ENGAGEMENT OF KPMG

     KPMG  was formally  engaged by  the Independent  Committee by  letter dated
November 24, 2003 (the "Engagement Agreement") to provide this Fairness Opinion.
The terms of the Engagement  Agreement provide that KPMG is  to be paid a  fixed
fee  for this Fairness  Opinion. In addition,  KPMG is to  be reimbursed for its
reasonable out-of-pocket expenses and  be indemnified by  Hemosol in respect  of
certain  liabilities  which  may be  incurred  by  KPMG in  connection  with the
provision of  its  services.  No part  of  KPMG's  fee is  contingent  upon  the
conclusions  reached in this Fairness Opinion or on the successful completion of
the Arrangement.

CREDENTIALS OF KPMG

     KPMG is  one of  the world's  largest professional  services  organization,
offering  a  broad  range  of services.  KPMG's  professionals  have significant
experience in  advising  a  broad  range  of  companies  for  various  purposes,
including   securities   law   compliance,   fairness   opinions,   mergers  and
acquisitions, corporate income tax and litigation matters, amongst other things.

                                       E-1


INDEPENDENCE OF KPMG

     KPMG is not an insider, associate  or affiliate (as such terms are  defined
in  the Securities Act (Ontario)) of Hemosol or MDS. Neither KPMG nor any of its
affiliates is an advisor to MDS in respect of the Arrangement. KPMG has not been
engaged within the last  two years to perform  financial advisory, tax or  other
services for, or been involved in a prior valuation, appraisal or review of, the
financial status of Hemosol or MDS, other than pursuant to this engagement.

SCOPE OF REVIEW

     In  connection with preparing and rendering this Fairness Opinion, KPMG has
reviewed, and where it considered appropriate, relied upon, or undertaken, among
other things, the following:

     1.    the Arrangement  Agreement  and  the agreements  or  other  documents
           attached  as Exhibits thereto, including the Plan of Arrangement, the
           Blood Products Partnership Agreement, the Labs Partnership  Agreement
           and the Labs Management Agreement;

     2.    the   financial   statements  of   Hemosol,  including   the  audited
           consolidated balance sheets, statements of loss and deficit and  cash
           flow  statements as  at and for  the fiscal years  ended December 31,
           2001 and 2002, the unaudited consolidated balance sheet, statement of
           loss and deficit and cash flow statement as at and for the nine-month
           period ended September 30, 2003;

     3.    other publicly  available information  concerning Hemosol,  including
           the  Annual  Information Form  dated May  27,  2003, the  2002 Annual
           Report to  Shareholders, the  Management Information  Circular  dated
           December  22, 2003  and the  Short-Form Prospectus  dated January 13,
           2004;

     4.    income tax returns of Hemosol and schedules prepared by management of
           Hemosol summarizing the nature and estimated amount of tax attributes
           of Hemosol as at December 31, 2003;

     5.    Hemosol's  management's  financial  projections  of  EBITDA,  capital
           expenditures  and licence payments for  the years ending December 31,
           2004 through 2010;

     6.    reported prices and trading activity for the shares of Hemosol;

     7.    discussions with representatives of senior management of Hemosol with
           respect to  the  current  operations  and  future  prospects  of  its
           business (the "Blood Products Business");

     8.    expressions of interest which Hemosol received regarding transactions
           designed  to  allow Hemosol  to  benefit from  the  value of  the Tax
           Losses;

     9.    publicly available information concerning  MDS, including the  Annual
           Information Form dated January 31, 2003 and the 2002 Annual Report to
           MDS's shareholders;

     10.   unaudited  summary financial  information for  MDS's Ontario clinical
           laboratory services business (the  "Labs Business") provided by  MDS,
           including  a  balance  sheet as  at  October 31,  2003  and operating
           results for the years ending October  31, 1999 to 2003 and  projected
           operating results for the year ending October 31, 2004;

     11.   certain  public stock market  and financial data  for publicly traded
           companies with operations comparable to the Labs Business;

     12.   discussions with  representatives of  senior management  of MDS  with
           respect  to the current  operations and future  prospects of the Labs
           Business;

     13.   discussions with the legal and tax advisors to Hemosol in respect  of
           the  financial and tax impacts  of the Arrangement to Securityholders
           other than MDS and its affiliates;

     14.   review of  transactions  involving tax  attributes,  including  those
           publicly  announced and  other nonpublic  transactions in  which KPMG
           advised; and,

     15.   general industry and economic information obtained from other sources
           considered reliable and necessary by KPMG in the circumstances.

     KPMG's  review  consisted  primarily  of  inquiry,  review,  analysis   and
discussion of this information. KPMG has not, to the best of its knowledge, been
denied access by Hemosol or MDS to any information requested by KPMG.

                                       E-2


RESTRICTIONS AND QUALIFICATIONS

     This  Fairness Opinion has been prepared  for the Independent Committee and
the Hemosol Board, and except as explicitly permitted herein, is not to be  used
or  relied  upon by  any person,  other  than the  Independent Committee  or the
Hemosol Board,  for any  purpose other  than  as stated  herein, and  except  as
provided  in the last  sentence of this  paragraph, is not  intended for general
circulation, nor is it  to be published  or made available  to other parties  in
whole  or in part without KPMG's prior written consent. KPMG expressly disclaims
any liability by reason of the use of this Fairness Opinion by any person  other
than  the Independent  Committee or  the Hemosol Board  and does  not assume any
responsibility for losses  resulting from  the unauthorized or  improper use  of
this  Fairness Opinion. Subject  to the terms of  the Engagement Agreement, KPMG
consents to the inclusion of this Fairness Opinion, along with a summary of  the
basis  for this Fairness Opinion, in a  form acceptable to KPMG in the Circular,
and to  the  filing  thereof,  as necessary,  by  Hemosol  with  the  applicable
securities  commissions  or similar  regulatory  authorities in  Canada  and the
United States.

     The financial statements and other information provided by Hemosol, MDS  or
their  representatives  have  been accepted,  without  further  verification, as
correctly reflecting the relevant business conditions and operating results  for
the respective periods.

     KPMG  is not  commenting on,  nor is it  in a  position to  comment on, the
likely trading price  or marketability  of the  common shares  of Hemosol  Corp.
("New Hemosol") or the Class A common shares of Labco (as defined below).

     KPMG  has not independently  verified the accuracy  and completeness of the
information supplied to KPMG with respect  to Hemosol, MDS and their  affiliates
and subsidiaries and does not assume any responsibility with respect to it. KPMG
has  relied upon and assumed the completeness, accuracy and fair presentation of
all financial and other information, data, advice, opinions, representations and
other material obtained  by it  from public  sources or  provided to  it by,  on
behalf  of or at the  request of the Independent  Committee, Hemosol or MDS, and
this Fairness Opinion is conditional  upon such completeness, accuracy and  fair
presentation. KPMG has assumed that the projections provided to it by management
of  Hemosol and/or MDS represent the best  estimate of the most probable results
for the Blood Products Business or  the Labs Business for the periods  presented
therein. In preparing the Fairness Opinion, KPMG has made certain assumptions in
addition  to  those  noted  herein  which it  considered  to  be  reasonable and
appropriate in the circumstances.

     This Fairness Opinion is rendered as of February 11, 2004, on the basis  of
securities  markets and economic  and general business  and financial conditions
currently prevailing and the condition  and prospects, financial and  otherwise,
of  Hemosol and of the Labs Business as  it was reflected in the information and
documents reviewed by KPMG and as it was represented to KPMG in discussions with
the management of Hemosol and MDS.

No opinion, counsel, or interpretation is intended in matters that require legal
or other  appropriate professional  advice. It  is assumed  that such  opinions,
counsel  or interpretations have  been or will be  obtained from the appropriate
professional sources.

     KPMG disclaims any undertaking  or obligation to advise  any person of  any
change  in any fact or matter affecting  this Fairness Opinion which may come or
be brought to KPMG's attention after the date hereof.

APPROACH

     The assessment  of  fairness  from  a  financial  point  of  view  must  be
determined  in the context  of each particular transaction.  KPMG has based this
Fairness Opinion on methods and  techniques that KPMG considered appropriate  in
the  circumstances and considered  a number of  factors in KPMG's  review of the
Arrangement. The preparation of a fairness  opinion is a complex process and  it
is  not necessarily  susceptible to partial  analysis or  a summary description.
Accordingly, KPMG's analyses must be considered as a whole and the selection  of
portions of KPMG's analyses or the factors considered by us, without considering
all  factors  and  analyses together,  could  create  a misleading  view  of the
approaches underlying this Fairness Opinion. This Fairness Opinion is not to  be
construed  as a  recommendation to  any holder of  Hemosol shares  to support or
reject the Arrangement.

     In summary  form,  KPMG  understands  that  the  Arrangement  involves  the
following:

     -  Shareholders of Hemosol will receive one common share of New Hemosol and
        one  Class A common share of Labco for each common share of Hemosol that
        they held immediately prior to the effective time of the Arrangement.
                                       E-3


     -  Each convertible security  of Hemosol, other  than stock options  issued
        under  its stock option plan, will  become a security to purchase common
        shares of New Hemosol with terms identical to such convertible  security
        of Hemosol, other than a reduction of the exercise price by $0.04.

     -  Certain stock options of Hemosol issued under its stock option plan will
        be  replaced with options to purchase  common shares of New Hemosol with
        terms identical to such stock options of Hemosol, other than a reduction
        of the exercise price by $0.04.

     -  Hemosol  will  transfer  the  Blood  Products  Business  to  a   limited
        partnership  (the "Blood  Products Partnership") and  the Blood Products
        Partnership will assume all of the obligations of Hemosol. Following the
        transfer by Hemosol of the Blood Products Business to the Blood Products
        Partnership, Hemosol is  referred to  as "Labco". On  completion of  the
        Arrangement, approximately 93% of the Blood Products Partnership will be
        owned  by New Hemosol, which will control the Blood Products Partnership
        as its  general  partner and  approximately  7% of  the  Blood  Products
        Partnership will be owned by Labco as a limited partner.

     -  MDS  will transfer the Labs Business to a limited partnership (the "Labs
        Partnership"). On  completion of  the Arrangement,  99.99% of  the  Labs
        Partnership will be owned by Labco as a limited partner and 0.01% of the
        Labs  Partnership will  be owned  by a  wholly-owned subsidiary  of MDS,
        which will control the Labs Partnership as its general partner.

     -  New Hemosol will receive  cash redemption proceeds  of $16 million  from
        Labco  (which will be  funded by a  loan from the  Labs Partnership). $1
        million of such proceeds will be  held in escrow to satisfy  liabilities
        relating to the Blood Products Business remaining with Labco, if any, of
        which Labco becomes aware within a one-year period.

     -  MDS will surrender an aggregate of 2,500,000 warrants to purchase common
        shares  of Hemosol at an exercise price of $1 that it currently holds or
        has the right to receive in certain circumstances.

     -  The share  ownership  of  New  Hemosol, which  will  be  in  effect  the
        successor  to the Blood  Products Business, will  mirror Hemosol's share
        ownership immediately prior  to the  Arrangement. It is  a condition  of
        closing  that the common shares of New  Hemosol be listed on the Toronto
        Stock Exchange and  quoted on The  Nasdaq National Market.  The Class  A
        common  shares of Labco will not be  listed or posted for trading on any
        stock exchange or market.

     -  The share ownership of Labco, which  will be in effect the successor  to
        the  Labs Business, will  be such that  Hemosol shareholders (other than
        MDS and its subsidiaries) will  hold 0.44% of Labco's equity  securities
        (through  their ownership of not less than 52.5% of the voting shares of
        Labco) and  MDS  will  hold  the  remaining  99.56%  of  Labco's  equity
        securities  (through its ownership of not  more than 47.5% of the voting
        shares and 100% of the non-voting shares of Labco).

     -  Labco will utilize the Tax Losses  against income that it receives  from
        the Labs Partnership and the Blood Products Partnership.

     In  order to assess the fairness of  the Arrangement from a financial point
of view to the Securityholders, other than MDS and its affiliates, KPMG reviewed
and  considered  the  estimated  value  of  each  constituent  component  to  be
transferred  and/or conveyed as part of the overall Arrangement using procedures
and  approaches  which   it  considered  appropriate   and  acceptable  in   the
circumstances  based on the  financial and other information  as available or as
provided by either Hemosol or MDS. In particular, KPMG assessed the value of the
following constituent  components of  the Arrangement:  (i) the  Class A  common
shares  of Labco  to be distributed  to Hemosol shareholders;  (ii) the warrants
surrendered by  MDS; (iii)  the 7%  limited partnership  interest in  the  Blood
Products  Business to  be held  by Labco, in  which MDS  will own  99.56% of the
equity; and (iv)  the Tax Losses.  Based on  such values together  with the  $16
million  cash  infusion  to  the  Blood  Products  Business,  KPMG  assessed the
effective or implied transfer  value of the Tax  Losses and concluded that  such
implied  value  fell within  an  acceptable range  of  values observed  in other
transactions involving the  transfer or  conveyance of tax  attributes based  on
publicly-available  information  or  transactions  in  which  KPMG  advised.  In
assessing the reasonableness of the implied  value of the Tax Losses, KPMG  also
considered  other factors such as the nature of the consideration to be received
and KPMG's  observation  that  in  certain  other  comparable  transactions  the
relevant   cash  payment  has  been  paid  over   time  or  may  be  subject  to
contingencies,  alternative  transactions  may  involve  the  discontinuance  or
significant  restructuring of existing operations, the  large quantum of the Tax
Losses and the limited number of companies and
                                       E-4


businesses capable  of  taking advantage  of  such  quantum of  Tax  Losses  and
alternative  opportunities that might  be available to  Hemosol based on certain
expressions of  interest  received  and  the  degree  of  risk  associated  with
concluding  such alternatives as compared to  the Arrangement. In addition, KPMG
also considered certain additional factors  that might influence the  assessment
of  fairness from a financial point of  view, including the potential tax impact
to Hemosol shareholders  resident in  the United  States. In  this regard,  KPMG
understands  and has  assumed that  any adverse  impact to  Hemosol shareholders
resident in the US would be minimal.

CONCLUSION

     Based upon  and  subject to  the  foregoing  and such  other  matters  KPMG
considered  to be relevant, KPMG  is of the opinion that  as of the date hereof,
the Arrangement is fair from a  financial point of view to the  Securityholders,
other than MDS and its affiliates.

Yours very truly,

KPMG Corporate Finance Inc.

KPMG CORPORATE FINANCE INC.

                                       E-5


                    ANNEX F -- NEW HEMOSOL STOCK OPTION PLAN

                                 HEMOSOL CORP.

                               STOCK OPTION PLAN

                                (AS OF --, 2004)

                                   ARTICLE 1
                                PURPOSE OF PLAN

1.1     The purpose of the Plan is to assist directors, officers, members of any
        scientific  advisory  board  (a  "Scientific  Advisory  Board")  and key
        employees of and Consultants to the Corporation and its Subsidiaries  to
        participate  in the  growth and development  of the  Corporation and its
        Subsidiaries by  providing such  persons with  the opportunity,  through
        share  options,  to acquire  an  increased proprietary  interest  in the
        Corporation.

                                   ARTICLE 2
                                 DEFINED TERMS

2.1     Where used herein the following terms shall have the following meanings,
        respectively:

      (a)  "Arrangement" means the arrangement of Hemosol Inc. under section 182
           of the Business Corporations Act  (Ontario) pursuant to the  articles
           of arrangement of Hemosol Inc. dated   --  , 2004;

      (b)  "Board"  means  the  board of  directors  of the  Corporation  or, if
           established and duly  authorized to act,  the executive committee  of
           the Board;

      (c)  "Business  Day" means any day, other than  a Saturday or a Sunday, on
           which The Toronto Stock Exchange is open for trading;

      (d)  "Compensation  Committee"  has  the  meaning  attributed  thereto  in
           Article 3 hereof;

      (e)  "Consultant"  means any person or  company engaged to provide ongoing
           consulting services to the Corporation or any of its Subsidiaries who
           is not also  an insider  (as defined in  section 627  of the  Toronto
           Stock  Exchange  Company Manual)  of the  Corporation  or any  of its
           Subsidiaries;

      (f)  "Corporation" means Hemosol Corp. and includes any division  thereof,
           any  successor  corporation  thereto  and any  division  of  any such
           successor;

      (g)  "Eligible Person" means any director, officer, member of a Scientific
           Advisory  Board  or  full-time  employee  of  or  Consultant  to  the
           Corporation  or any of its Subsidiaries, or any person designated, or
           who belongs to a class of persons designated, as an "Eligible Person"
           by the Board;

      (h)  "Market Price" at any date in respect of Shares shall be the  closing
           price  of  such Shares  on The  Toronto Stock  Exchange (or,  if such
           Shares are not  then listed  and posted  for trading  on The  Toronto
           Stock Exchange, on such stock exchange in Canada on which such Shares
           are listed and posted for trading as may be selected for such purpose
           by the Compensation Committee) on the last Business Day preceding the
           date  on which the Option  is granted or, in  the event the Option is
           granted after the  close of trading  on a Business  Day, the  closing
           price  on the applicable stock exchange  on such Business Day. In the
           event that such Shares did not trade on the Business Day, the  Market
           Price  shall be the average  of the bid and  ask prices in respect of
           such Shares at the close of trading  on such date. In the event  that
           such  Shares  are not  listed  and posted  for  trading on  any stock
           exchange, the  Market Price  in  respect thereof  shall be  the  fair
           market  value  of  such  Shares  as  determined  by  the Compensation
           Committee in its sole discretion;

      (i)   "Option" means an option to purchase Shares granted under the Plan;

      (j)   "Option Price" means  the price  per Share  at which  Shares may  be
            purchased under the Option, as the same may be adjusted from time to
            time in accordance with Article 8 hereof;

                                       F-1


      (k)  "Optionee" means a person to whom an Option has been granted;

      (l)   "Outstanding  Issue"  means the  number of  Shares outstanding  on a
            non-diluted basis;

      (m) "Plan" means the Hemosol Corp. Stock Option Plan, as embodied  herein,
          as the same may be amended, varied or restated from time to time;

      (n)  "Replaced  Options"  means  certain  of  the  outstanding  options to
           purchase common shares of Hemosol Inc. granted pursuant to the  stock
           option  plan of Hemosol Inc. as amended and restated as of   --  2004
           that were cancelled in exchange  for Replacement Options pursuant  to
           the Arrangement;

      (o)  "Replacement   Option"  means  an  Option   issued  pursuant  to  the
           Arrangement;

      (p)  "Scientific Advisory Board"  means any scientific  advisory board  of
           the Corporation or any Subsidiary;

      (q)  "Shares" means the common shares of the Corporation, or, in the event
           of  an adjustment contemplated by Article 8 hereof, such other shares
           or securities to which an Optionee may be entitled upon the  exercise
           of an Option as a result of such adjustment; and

      (r)  "Subsidiary"  means any  corporation which  is a  subsidiary (as such
           term is defined in  the Business Corporations  Act (Ontario)) of  the
           Corporation,  including  any division  thereof,  or any  other entity
           controlled by  the  Corporation, including,  for  greater  certainty,
           Hemosol LP.

                                   ARTICLE 3
                           ADMINISTRATION OF THE PLAN

3.1     The  Plan  shall  be  administered by  the  compensation  committee (the
        "Compensation Committee") appointed by the  Board and consisting of  not
        less  than three members  of the Board. The  members of the Compensation
        Committee shall  serve  at  the  pleasure of  the  Board  and  vacancies
        occurring in the Compensation Committee shall be filled by the Board.

3.2     The  Compensation  Committee  shall select  one  of its  members  as its
        Chairman and shall hold its meetings at such time and place as it  shall
        deem  advisable. A majority of the members of the Compensation Committee
        shall constitute a quorum and all actions of the Compensation  Committee
        shall  be taken by a majority of the members present at any meeting. Any
        action of the Compensation  Committee may be taken  by an instrument  or
        instruments  in writing  signed by all  the members  of the Compensation
        Committee entitled to vote on the action, and any action so taken  shall
        be as effective as if it had been passed by a majority of the votes cast
        by  the members  of the Compensation  Committee present at  a meeting of
        such members duly called and held.

3.3     The Compensation Committee shall have  the power, where consistent  with
        the  general purpose and intent of the  Plan and subject to the specific
        provisions of the Plan:

      (a)  to establish policies and to adopt rules and regulations for carrying
         out the purposes, provisions and administration of the Plan;

      (b)  to  interpret and construe  the Plan and  to determine all  questions
         arising  out of the Plan  and any Option granted  pursuant to the Plan,
         and any such interpretation, construction or determination made by  the
         Compensation  Committee shall be final,  binding and conclusive for all
         purposes;

      (c)  to determine to which Eligible Persons Options will be granted and to
         make recommendations  to the  Board  with respect  to the  granting  of
         Options;

      (d)  to determine the number of Shares covered by each Option;

      (e)   to  determine the  time or  times when  Options will  be granted and
         exercisable;

      (f)  to determine  if the Shares  which are subject to  an Option will  be
         subject to any restrictions upon the exercise of such Option; and

      (g)   to  prescribe the  form of  the instruments  relating to  the grant,
         exercise and other terms of Options.

3.4     No member of the  Compensation Committee shall,  during the currency  of
        his or her membership on the Compensation Committee, be entitled to vote
        on any resolution to approve his or her participation in the Plan.

                                       F-2


                                   ARTICLE 4
                             SHARES SUBJECT TO PLAN

4.1     Options  may be  granted in  respect of  authorized and  unissued Shares
        provided that the maximum number of  Shares that may be issued upon  the
        exercise of Options granted pursuant to the Plan shall be 5,500,000. The
        Shares  in respect of which Options are not exercised shall be available
        for subsequent  Options under  the  Plan. No  fractional Shares  may  be
        purchased or issued under the Plan.

                                   ARTICLE 5
                    ELIGIBILITY, GRANT AND TERMS OF OPTIONS

5.1     Options may be granted to any Eligible Person from time to time.

5.2     Options may be granted by the Corporation pursuant to recommendations of
        the  Compensation  Committee  provided  and  to  the  extent  that  such
        recommendations are approved by the Board.

5.3     Except as otherwise specifically provided in this Article 5, the  number
        of  Shares subject to  each Option, the expiration  date of each Option,
        the extent to which each Option is exercisable from time to time  during
        the  term of the Option and other  terms and conditions relating to each
        such Option shall be determined by the Compensation Committee; provided,
        however, that if no specific  determination is made by the  Compensation
        Committee  with respect  to any  of the  following matters,  each Option
        shall, subject to any other specific provisions of the Plan, contain the
        following terms and conditions:

      (a)  the period during which an Option shall be exercisable shall be  five
         years from the date the Option is granted to the Optionee; and

      (b)   the Optionee may  take up and pay  for not more than  33 1/3% of the
         Shares covered by the Option during each 12 month period following  the
         first  anniversary of  the date of  the grant of  the Option; provided,
         however, that if the number of Shares taken up under the Option  during
         any  such 12 month period is less than 33 1/3% of the Shares covered by
         the Option, the Optionee shall have the right, at any time or from time
         to time during  the remainder of  the term of  the Option, to  purchase
         such number of Shares subject to the Option which were purchasable, but
         not purchased by him or her, during such 12 month period.

5.4     The  Option Price on Shares which are the subject of any Option shall be
        determined by the Board at the time of the grant of the Options provided
        that in no circumstances shall the Option Price be lower than the Market
        Price of the Shares.

5.5     In no event may the term of an Option exceed ten years from the date  of
        the grant of the Option.

5.6     The  Board  confirms the  grant of  Replacement  Options under  the Plan
        pursuant to the Arrangement. Notwithstanding any other provision hereof,
        the number of  Shares subject  to a Replacement  Option, the  expiration
        date  of such Replacement  Option, the extent  to which such Replacement
        Option is  exercisable  from  time  to time  during  the  term  of  such
        Replacement  Option, the vesting schedule and other terms and conditions
        relating to such Replacement Option shall be the same as those terms  of
        the Replaced Option in respect of which such Replacement Option has been
        issued  except that the Option Price shall be the exercise price of such
        Replaced Option less $0.04.

5.7     The total number  of Shares to  be optioned to  any Optionee under  this
        Plan  together with any  Shares reserved for  issuance under options for
        services and employee share  purchase plans or any  other plans to  such
        Optionee shall not exceed 5% of the issued and outstanding Shares at the
        date of the grant of the Option.

5.8     Each Option is personal to the Optionee and is non-assignable.

                                   ARTICLE 6
                        TERMINATION OF EMPLOYMENT; DEATH

6.1     Subject  to Article 6.2  hereof and to any  express resolution passed by
        the Compensation Committee with respect to an Option, an Option and  all
        rights  to purchase Shares  pursuant thereto shall  expire and terminate
        immediately upon the Optionee ceasing to be an Eligible Person.

                                       F-3


6.2     If, before the expiry of an Option in accordance with the terms thereof,
        the employment of the Optionee by  the Corporation or by any  Subsidiary
        of  the Corporation shall terminate for any reason whatsoever other than
        termination by the Corporation for  cause, but including termination  by
        reason  of the death  of the Optionee,  such Option may,  subject to the
        terms thereof and  any other  terms of the  Plan, be  exercised, if  the
        Optionee  is deceased,  by the  legal personal  representative(s) of the
        estate of the Optionee during the  first six months following the  death
        of  the Optionee, or if he is alive, by the Optionee, at any time within
        six months of the date of termination of the employment of the  Optionee
        (but in either case prior to the expiry of the Option in accordance with
        the  terms  thereof),  but only  to  the  extent that  the  Optionee was
        entitled to exercise such Option at  the date of the termination of  his
        or her employment.

6.3     Options  shall  not  be affected  by  any  change of  employment  of the
        Optionee or by the Optionee ceasing to be an Eligible Person.

                                   ARTICLE 7
                              EXERCISE OF OPTIONS

7.1     Subject to the provisions of the  Plan, an Option may be exercised  from
        time  to time by delivery to the Corporation at its registered office of
        a  written  notice  of  exercise  addressed  to  the  Secretary  of  the
        Corporation  specifying the number  of Shares with  respect to which the
        Option is being  exercised and  accompanied by  payment in  full of  the
        Option Price of the Shares to be purchased. Certificates for such Shares
        shall  be issued and delivered to  the Optionee within a reasonable time
        following the receipt of such notice and payment.

7.2     Notwithstanding any of the  provisions contained in the  Plan or in  any
        Option,  the  Corporation's obligation  to issue  Shares to  an Optionee
        pursuant to the exercise of an Option shall be subject to:

      (a)  completion of such registration or other qualification of such Shares
           or  obtaining  approval  of   such  governmental  authority  as   the
           Corporation   shall  determine  to  be   necessary  or  advisable  in
           connection with the authorization, issuance or sale thereof;

      (b)  the admission of  such Shares  to listing  on any  stock exchange  on
           which the Shares may then be listed; and

      (c)  the receipt from the Optionee of such representations, agreements and
           undertakings,  including as to future dealings in such Shares, as the
           Corporation or its counsel determines to be necessary or advisable in
           order to safeguard against  the violation of  the securities laws  of
           any jurisdiction.

        In this connection, the Corporation shall, to the extent necessary, take
        all  reasonable  steps  to  obtain  such  approvals,  registrations  and
        qualifications as may be  necessary for the issuance  of such Shares  in
        compliance  with applicable securities laws and  for the listing of such
        Shares on any stock exchange on which the Shares are then listed.

                                   ARTICLE 8
                              CERTAIN ADJUSTMENTS

8.1     Appropriate adjustments in the number of Shares subject to the Plan, and
        as regards Options  granted or to  be granted, in  the number of  Shares
        optioned  and in the  Option Price, shall  be made by  the Board to give
        effect to  adjustments  in  the  number of  Shares  of  the  Corporation
        resulting  from subdivisions, consolidations or reclassifications of the
        Shares of  the  Corporation,  the  payment of  share  dividends  by  the
        Corporation  (other  than dividends  in  the ordinary  course)  or other
        relevant changes in the  capital stock of  the Corporation. The  Board's
        determination of such adjustments shall be final, binding and conclusive
        for all purposes.

                                   ARTICLE 9
                      AMENDMENT OR DISCONTINUANCE OF PLAN

 9.1     Subject  to obtaining any required  regulatory approvals, the Board may
         amend or discontinue the Plan at  any time; provided, however, that  no
         such  amendment  may, without  the consent  of  the Optionee,  alter or
         impair any Option previously granted to an Optionee under the Plan.

                                       F-4


                                   ARTICLE 10
                            MISCELLANEOUS PROVISIONS

10.1     The holder of an Option shall not  have any rights as a shareholder  of
         the  Corporation  with respect  to any  of the  Shares covered  by such
         Option until such holder has  exercised such Option in accordance  with
         the  terms  of the  Plan (including  tendering payment  in full  of the
         Option Price of  the Shares  in respect of  which the  Option is  being
         exercised)  and the  Corporation shall have  issued such  Shares to the
         Optionee  in  accordance  with   the  terms  of   the  Plan  in   those
         circumstances.

10.2     Nothing  in the Plan or  any Option shall confer  upon any Optionee any
         right to continue in the employ of the Corporation or any Subsidiary of
         the Corporation or affect  in any way the  right of the Corporation  or
         any such Subsidiary to terminate his or her employment at any time; nor
         shall  anything in  the Plan  or any Option  be deemed  or construed to
         constitute an agreement, or an expression of intent, on the part of the
         Corporation or  any such  Subsidiary to  extend the  employment of  any
         Optionee beyond the time which he would normally be retired pursuant to
         the  provisions  of  any  present  or  future  retirement  plan  of the
         Corporation or  any  Subsidiary or  any  present or  future  retirement
         policy  of the  Corporation or  any Subsidiary,  or beyond  the time at
         which he would otherwise be retired  pursuant to the provisions of  any
         contract of employment with the Corporation or any Subsidiary.

10.3     (a)  In the event the Corporation proposes to amalgamate (other than an
         amalgamation with a  subsidiary), merge or  consolidate with any  other
         corporation or to liquidate, dissolve or wind-up, the Corporation shall
         give  written notice thereof to each  Optionee and permit each Optionee
         to exercise his or her Options within the 45-day period next  following
         the  giving of such  notice, failing which, all  rights of the Optionee
         with respect  to his  or her  Options  or to  exercise the  same  shall
         terminate and cease to have any further force or effect whatsoever.

       (b)  If, at any particular time, an Option is otherwise exercisable as to
       part only of the Shares to which the Option relates or is not exercisable
       at all because of a vesting period  and in the event that a Public  Take-
       over  Bid (as hereinafter defined) is made,  the holder of the Option may
       at any time thereafter exercise the Option with respect to all the Shares
       to which the Option relates. For purposes of this Section 10.3(b)(i)  and
       (ii), "Public Take-over Bid" means any of the following:

       (i)   a  take-over  bid, as  that  term is  defined  in Section  6-101 of
             Appendix F to The Toronto  Stock Exchange Company Manual, made  for
             the Shares of the Corporation through the facilities of The Toronto
             Stock Exchange or a take-over bid for the Shares of the Corporation
             made  through the facilities of any  other stock exchange in Canada
             under the governing rules and  regulations of such stock  exchange;
             and

       (ii)  a  bid for  the Shares  of the  Corporation in  respect of  which a
             take-over bid circular is prepared and delivered to shareholders of
             the Corporation  pursuant  to  the  provisions  of  the  securities
             legislation of any Province of Canada.

10.4     Any  dispute or disagreement which shall arise under or as a result of,
         or  in  any  way  related  to,  the  interpretation,  construction   on
         application  of this  Plan shall be  determined by the  Board. Any such
         determination shall be final, binding and conclusive for all purposes.

10.5     Upon the exercise of  an Option, the  Optionee shall make  arrangements
         satisfactory  to  the  Corporation regarding  payment  of  any federal,
         provincial or local taxes  of any kind required  by law to be  withheld
         with   respect  to  the  exercise  of  the  Option.  In  addition,  the
         Corporation shall, to the  extent permitted by law,  have the right  to
         deduct  from any payment of  any kind due to  the Optionee any federal,
         provincial or local taxes  of any kind required  by law to be  withheld
         with respect to the exercise of the Option.

10.6     Grammatical  variations  of  any  terms  defined  herein  have  similar
         meanings. Words importing the singular number shall include the  plural
         and  vice versa and words importing the use of any gender shall include
         all genders.  The division  of  this Plan  into separate  Articles  and
         Sections,  and  the  insertion  of  headings  are  for  convenience  of
         reference only and shall not affect the construction or  interpretation
         of this Plan.

                                       F-5


                                   ARTICLE 11
                      SHAREHOLDER AND REGULATORY APPROVAL

11.1     The  Plan and the exercise of the  Options granted under the Plan shall
         be subject to the condition that  if at any time the Corporation  shall
         determine  in its sole discretion that  it is necessary or desirable to
         comply with any  legal requirements  or the requirements  of any  stock
         exchange  or other  regulatory authority or  to obtain  any approval or
         consent from any such stock exchange or other regulatory authority as a
         condition of, or  in connection with  the Plan or  the exercise of  the
         Options  granted under  the Plan  or the  issue of  Shares as  a result
         thereof, then in  any such  event, any  Options granted  prior to  such
         approval  and  acceptance  shall be  conditional  upon  such compliance
         having been effected or such approval or consent having been given  and
         no  such Options may  be exercised unless and  until such compliance is
         effected or  until such  approval  or consent  is given  on  conditions
         satisfactory to the Corporation in its sole discretion.

     IN  WITNESS WHEREOF, Hemosol  Corp. has executed  this amended and restated
Plan as of the   --  day of   --  , 2004.

                                         HEMOSOL CORP.

                                         by
                                          --------------------------------------

                                          --------------------------------------

                                       F-6


        ANNEX G -- SUMMARY HISTORICAL FINANCIAL INFORMATION FOR HEMOSOL

SUMMARY CONSOLIDATED FINANCIAL DATA

     The summary consolidated financial data in the tables below for each of the
years ended December 31, 2001, 2002 and 2003 has been derived from the following
Hemosol audited consolidated financial statements:

     -  consolidated balance sheet as at December 31, 2001, 2002 and 2003; and

     -  consolidated statement of loss and deficit for the years ended  December
        31, 2001, 2002 and 2003.

     All  information  contained in  these following  tables  should be  read in
conjunction  with  Hemosol's  Audited   Financial  Statements  incorporated   by
reference in this Circular.

     The  summary financial information contained  in these following tables and
Hemosol's consolidated  financial statements  have been  prepared in  accordance
with  Canadian GAAP.  A reconciliation of  the summary  financial information to
U.S. GAAP and summary  financial information of  Hemosol prepared in  accordance
with  U.S. GAAP are also provided. For a discussion of the principal differences
between  Canadian  GAAP  and  U.S.  GAAP,  see  note  19  to  Hemosol's  audited
consolidated   financial  statements  for  the  year  ended  December  31,  2003
incorporated by reference in this Circular.

<Table>
<Caption>
                                                                YEAR ENDED DECEMBER 31,
                                                              ---------------------------
                                                               2001      2002      2003
                                                              -------   -------   -------
                                                                 $         $         $
                                                                    (In thousands,
                                                                except per share data)
                                                                         
CONSOLIDATED STATEMENT OF LOSS AND DEFICIT
Revenues....................................................       --        --        --
                                                              -------   -------   -------
Operating expenses..........................................   41,479    47,425    32,113
                                                              -------   -------   -------
Operating loss..............................................  (41,479)  (47,425)  (32,113)
Amortization of deferred charges............................     (360)   (1,587)   (5,009)
Write-off of deferred charges...............................       --    (6,453)       --
Interest expense............................................       --        --      (688)
Interest income.............................................    3,488       842       153
Miscellaneous income........................................       --        --     2,871
                                                              -------   -------   -------
Loss before income taxes....................................  (38,351)  (54,623)  (34,786)
Provision for income taxes..................................     (226)     (211)     (156)
                                                              -------   -------   -------
Net loss....................................................  (38,577)  (54,834)  (34,942)
                                                              =======   =======   =======
Basic and diluted net loss per common share.................    (0.98)    (1.23)    (0.75)
                                                              =======   =======   =======
Weighted average number of common shares used in computing
  basic and diluted net loss per common share (rounded to
  nearest thousand).........................................   39,215    44,514    46,837
</Table>

<Table>
<Caption>
                                                                    AS AT DECEMBER 31,
                                                              ------------------------------
                                                                2001       2002       2003
                                                              --------   --------   --------
                                                                 $          $          $
                                                                      (In thousands)
                                                                           
CONSOLIDATED BALANCE SHEET DATA
Total current assets........................................    74,724     26,533     10,582
Total non-current assets....................................    69,693     97,779     89,795
Total assets................................................   144,417    124,312    100,377
Total current liabilities...................................    13,605     20,249     23,394
Total non-current liabilities...............................        --         --         --
Common shares...............................................   282,644    303,463    305,953
Non-employee warrants and options...........................     3,034     10,300     15,642
Deficit.....................................................  (163,401)  (218,235)  (253,177)
Net assets..................................................   130,812    104,063     76,983
</Table>

                                       G-1

SUMMARY CONSOLIDATED FINANCIAL DATA (CONTINUED)

     Operating results that would differ under U.S. GAAP are as follows:

<Table>
<Caption>
                                                                YEAR ENDED DECEMBER 31,
                                                              ---------------------------
                                                               2001      2002      2003
                                                              -------   -------   -------
                                                                 $         $         $
                                                                    (In thousands,
                                                                except per share data)
                                                                         
CONSOLIDATED STATEMENT OF LOSS AND DEFICIT (U.S. GAAP)
Revenues....................................................       --        --        --
Operating expenses..........................................   42,423    47,637    33,825
Net loss and comprehensive loss.............................  (39,521)  (55,046)  (36,654)
Net loss per share..........................................    (1.01)    (1.24)    (0.78)
Weighted average number of common shares outstanding,
  (rounded to the nearest thousand share)...................   39,168    44,514    46,837
</Table>

<Table>
<Caption>
                                                                    AS AT DECEMBER 31,
                                                              ------------------------------
                                                                2001       2002       2003
                                                              --------   --------   --------
                                                                 $          $          $
                                                                      (In thousands)
                                                                           
CONSOLIDATED BALANCE SHEET DATA (U.S. GAAP)
Total current assets........................................    74,342     26,533     10,582
Total non-current assets....................................    67,729     95,603     85,907
Total assets................................................   142,071    122,136     96,489
Total current liabilities...................................    13,605     20,249     23,394
Total non-current liabilities...............................        --         --         --
Common shares...............................................   282,262    303,463    305,953
Non-employee warrants and options...........................     3,034     10,300     15,642
Deficit.....................................................  (165,365)  (220,411)  (257,065)
Net assets..................................................   128,466    101,887     73,095
</Table>

     Hemosol prepares its consolidated  financial statements in accordance  with
Canadian GAAP, which differ in certain material respects from U.S. GAAP.

     The material differences as they apply to the summary financial information
above are as follows:

     (a) Balance sheet adjustments:

<Table>
<Caption>
                                                                2001       2002       2003
                                                              --------   --------   --------
                                                                 $          $          $
                                                                           
AMOUNTS RECEIVABLE AND PREPAIDS
Balance under Canadian GAAP.................................     3,156      1,077        735
Adjustment for employee stock purchase loans(1).............      (382)        --         --
                                                              --------   --------   --------
BALANCE UNDER U.S. GAAP.....................................     2,774      1,077        735
                                                              ========   ========   ========
PATENTS AND TRADEMARKS
Balance under Canadian GAAP.................................     1,964      2,176      1,368
Adjustment for patents and trademarks(2)....................    (1,964)    (2,176)    (1,368)
                                                              --------   --------   --------
BALANCE UNDER U.S. GAAP.....................................        --         --         --
                                                              ========   ========   ========
LICENSE TECHNOLOGY
Balance under Canadian GAAP.................................        --         --      2,520
Adjustment for license technology(3)........................        --         --     (2,520)
                                                              --------   --------   --------
BALANCE UNDER U.S. GAAP.....................................        --         --         --
                                                              ========   ========   ========
</Table>

                                       G-2

SUMMARY CONSOLIDATED FINANCIAL DATA (CONTINUED)

<Table>
<Caption>
                                                                2001       2002       2003
                                                              --------   --------   --------
                                                                 $          $          $
                                                                           
COMMON SHARES
Balance under Canadian GAAP.................................   282,644    303,463    305,983
Adjustment for employee stock purchase loans(1).............      (382)        --         --
                                                              --------   --------   --------
BALANCE UNDER U.S. GAAP.....................................   282,262    303,463    305,983
                                                              ========   ========   ========
DEFICIT
Balance under Canadian GAAP.................................  (163,401)  (218,235)  (253,177)
Adjustment for patents and trademarks(2)....................    (1,964)    (2,176)    (1,368)
Adjustment for license technology(3)........................        --         --     (2,520)
                                                              --------   --------   --------
BALANCE UNDER U.S. GAAP.....................................  (165,365)  (220,411)  (257,065)
                                                              ========   ========   ========
BOOK VALUE PER SHARE........................................      3.19       2.26       1.39
                                                              ========   ========   ========
</Table>

(1) EMPLOYEE STOCK PURCHASE PLAN

    Under  Canadian GAAP, loans provided to employees for the purchase of shares
    may be either recorded as amounts receivable or deducted from share capital,
    depending on certain criteria. Under U.S. GAAP, such loans must be  deducted
    from share capital.

(2) PATENTS AND TRADEMARKS

    Under  Canadian GAAP,  patent and trademark  costs are carried  at cost less
    accumulated amortization and  are amortized  on a  straight-line basis  over
    their  estimated economic life.  Under U.S. GAAP,  these costs are generally
    expensed as incurred.

(3) LICENSE TECHNOLOGY

    Under U.S. GAAP,  acquired research  and development  having no  alternative
    future  use must be  written-off at the time  of acquisition. The adjustment
    represents the value  of the license  technology capitalized under  Canadian
    GAAP.

(4) JOINTLY CONTROLLED ENTERPRISE

    For  the 2002 consolidated  financial statements, the  investment in 1555195
    Ontario Inc.  is  proportionately  consolidated under  Canadian  GAAP.  This
    investment  is accounted  for using the  equity method under  U.S. GAAP. The
    Company relies on an accommodation available under certain conditions  which
    permits  the Company to omit disclosure of the differences in classification
    that arise. The  joint venture in  1555195 Ontario Inc.  qualifies for  this
    accommodation  on the basis that it  is an operating entity, the significant
    financial and operating policies of  which are, by contractual  arrangement,
    jointly controlled by all parties having an equity interest in the entity.

     (b)  The components of stockholders' equity under U.S. GAAP are as follows:

<Table>
<Caption>
                                                                2001       2002       2003
                                                              --------   --------   --------
                                                                 $          $          $
                                                                           
Common shares...............................................   282,262    303,463    305,983
Non-employee warrants and options...........................     3,034     10,300     15,642
Contributed surplus.........................................     8,535      8,535      8,535
Deficit accumulated during the development stage............  (165,365)  (220,411)  (257,065)
                                                              --------   --------   --------
                                                               128,466    101,887     73,095
                                                              ========   ========   ========
</Table>

                                       G-3

SUMMARY CONSOLIDATED FINANCIAL DATA (CONTINUED)

     (c)  Reconciliation of net loss under Canadian and U.S. GAAP:

<Table>
<Caption>
                                                               2001      2002      2003
                                                              -------   -------   -------
                                                                 $         $         $
                                                                         
Net loss for the year, under Canadian GAAP..................  (38,577)  (54,834)  (34,942)
Adjustment for patents and trademarks.......................     (944)     (212)      808
Adjustment for license technology...........................       --        --    (2,520)
                                                              -------   -------   -------
NET LOSS AND COMPREHENSIVE LOSS, UNDER U.S. GAAP............  (39,521)  (55,046)  (36,654)
                                                              =======   =======   =======
NET LOSS PER SHARE, UNDER U.S. GAAP.........................    (1.01)    (1.24)    (0.78)
                                                              =======   =======   =======
WEIGHTED AVERAGE NUMBER OF COMMON SHARES OUTSTANDING, UNDER
  U.S. GAAP [ROUNDED TO THE NEAREST THOUSAND SHARE].........   39,168    44,514    46,837
                                                              =======   =======   =======
</Table>

                                       G-4


                    ANNEX H -- BALANCE SHEET OF NEW HEMOSOL

                                AUDITOR'S REPORT

To the Directors of
HEMOSOL CORP.

     We have audited the balance sheet of HEMOSOL CORP. as at February 24, 2004.
The  balance  sheet  is  the responsibility  of  the  Company's  management. Our
responsibility is to express an opinion on the balance sheet based on our audit.

     We conducted  our  audit in  accordance  with Canadian  generally  accepted
auditing standards. Those standards require that we plan and perform an audit to
obtain  reasonable  assurance  whether the  balance  sheet is  free  of material
misstatement. An audit includes examining, on a test basis, evidence  supporting
the  amounts  and  disclosures in  the  balance  sheet. An  audit  also includes
assessing the  accounting  principals used  and  significant estimates  made  by
management, as well as evaluating the overall balance sheet presentation.

     In  our  opinion,  the  balance  sheet  presents  fairly,  in  all material
respects, the  financial position  of the  Company as  at February  24, 2004  in
accordance with Canadian generally accepted accounting principles.

<Table>
                                                           
Toronto, Canada                                               (Signed) ERNST & YOUNG LLP
March 10, 2004                                                Chartered Accountants
</Table>

                                       H-1


                                 HEMOSOL CORP.

                                 BALANCE SHEET
                            AS AT FEBRUARY 24, 2004

<Table>
                                                           
ASSETS
Cash........................................................  $ 1
                                                              ===
SHAREHOLDER'S EQUITY
Shareholder's capital.......................................  $ 1
                                                              ===
</Table>

See accompanying notes.

On behalf of the Board of Directors:

<Table>
                                              
             (Signed) LEE HARTWELL
</Table>

                                       H-2


                                 HEMOSOL CORP.

                             NOTES TO BALANCE SHEET
                               FEBRUARY 24, 2004

1.   Nature of Operations

    Hemosol  Corp.  was incorporated  on February  24,  2004 under  the Business
    Corporations Act (Ontario) and is a wholly-owned subsidiary of Hemosol  Inc.
    Hemosol Corp. has not carried on any active business since incorporation.

2.   Basis of Presentation

    This  balance sheet has been prepared  in accordance with Canadian generally
    accepted accounting principles (GAAP), which are the same in all  applicable
    material respects as United States GAAP.

    As  of February 24,  2004, Hemosol Corp.  has no revenues,  expenses or cash
    flows, except for $1.00  of share capital,  and consequently, statements  of
    earnings and cash flows have not been presented.

3.   Share Capital

     Authorized:  unlimited  number of  common  shares and  unlimited  number of
special shares issuable in series.

4.   Subsequent Event

    On February 12,  2004, Hemosol Inc.  announced that it  has entered into  an
    agreement  with  MDS Inc.  ("MDS"), a  related  party, regarding  a proposed
    reorganization of Hemosol Inc.'s business  that will allow the Hemosol  Inc.
    business  to  benefit  from  a  significant  portion  of  its  existing  and
    unutilized income tax losses and other tax assets through a transaction that
    will result in the Hemosol Inc. business receiving $16 million of cash.

    The transaction will be effected under a statutory Plan of Arrangement  (the
    "Arrangement")  that will  be subject to  approval by the  Superior Court of
    Justice of Ontario and the shareholders and warrantholders of Hemosol  Inc.,
    as  well  as certain  regulatory approvals.  It is  expected that  a special
    meeting of Hemosol  Inc.'s shareholders and  warrantholders to consider  and
    vote  on the Arrangement will be held as  soon as possible and no later than
    April 30, 2004. The Arrangement must be approved by two-thirds of the  votes
    cast  by the shareholders  and warrantholders of Hemosol  Inc. voting at the
    shareholders' meeting and by the majority of the votes cast by  shareholders
    and warrantholders of Hemosol Inc., excluding MDS, voting at the meeting.

    As  part of the transaction, shareholders of Hemosol Inc. will exchange each
    common share of Hemosol  Inc. for one common  share of Hemosol Corp.,  which
    will  be  the  successor  to substantially  all  of  Hemosol  Inc.'s current
    business, and one Class A common share  of Hemosol Inc. [to be renamed  LPBP
    Inc.  ("Labco")] which  will acquire  an indirect  interest in  the clinical
    laboratory services  business currently  carried on  by MDS.  Following  the
    transaction,  Hemosol Corp. will be held by existing shareholders of Hemosol
    Inc. on  the same  pro rata  basis as  Hemosol Inc.  was held  prior to  the
    transaction.  MDS  currently holds  approximately  11.7% of  the outstanding
    shares of Hemosol Inc. Hemosol Corp. will own a 93% equity interest in a new
    partnership that will carry on  Hemosol Inc.'s current and future  business,
    with  the remaining  7% being owned  by Labco.  MDS will hold  99.56% of the
    equity of  Labco  and  existing  Hemosol Inc.  shareholders  will  hold  the
    remaining 0.44% through the Class A common shares to be issued [representing
    not less than 52.5% of the voting securities of Labco]. It is a condition of
    closing that Hemosol Corp. be listed on the TSX and NASDAQ.

    Also as part of the transaction, Hemosol Inc. will decrease the total number
    of  warrants  issued, or  to  be issued,  to  MDS as  consideration  for the
    previously disclosed guarantee by MDS  of Hemosol Inc.'s $20 million  credit
    facility,  from an aggregate of 10,000,000  warrants to a total of 7,500,000
    warrants which will become Hemosol Corp. warrants.

                                       H-3


           ANNEX I -- PRO FORMA FINANCIAL STATEMENTS FOR NEW HEMOSOL

       COMPILATION REPORT ON PRO FORMA CONSOLIDATED FINANCIAL STATEMENTS

To the Directors of Hemosol Corp.:

     We have  read the  accompanying unaudited  pro forma  consolidated  balance
sheet  of Hemosol Corp. ("Hemosol" or the "Company") as at December 31, 2003 and
the unaudited pro forma consolidated statement of loss for the year then  ended,
and have performed the following procedures.

1.   Compared the figures in the columns captioned "Hemosol Inc." to the audited
     consolidated  financial statements of Hemosol Inc.  as at December 31, 2003
     and for  the  year  then ended,  respectively,  and  found them  to  be  in
     agreement.

2. Compared  the figures in the columns captioned "Hemosol Corp." to the audited
   balance sheet of the Company as at February 24, 2004 and found them to be  in
   agreement.

3. Made  enquiries of certain  officials of the  Company who have responsibility
   for financial and accounting matters about:

     (a)  the basis for determination of the pro forma adjustments; and

     (b)  whether the pro forma consolidated  financial statements comply as  to
          form  in  all material  respects with  the applicable  requirements of
          National Instrument 44-101.

    The officials:

     (a)  described  to  us  the  basis  for  determination  of  the  pro  forma
          adjustments, and

     (b)  stated that the pro forma consolidated statements comply as to form in
          all  material respects  with the  applicable requirements  of National
          Instrument 44-101.

4. Read the notes to the pro forma consolidated financial statements, and  found
   them to be consistent with the basis described to us for determination of the
   pro forma adjustments.

5. Recalculated the application of the pro forma adjustments to the aggregate of
   the  amounts in the columns captioned "Hemosol Corp." as at February 24, 2004
   and "Hemosol Inc." as at  December 31, 2003 and for  the year then ended  and
   found  the amounts  in the  column captioned  "Pro Forma  Consolidated" to be
   arithmetically correct.

     A pro  forma financial  statement is  based on  management assumptions  and
adjustments  which  are  inherently  subjective.  The  foregoing  procedures are
substantially less than either an audit or  a review, the objective of which  is
the  expression of assurance  with respect to  management's assumptions, the pro
forma adjustments,  and the  application of  the adjustments  to the  historical
financial  information. Accordingly, we express no such assurance. The foregoing
procedures would not necessarily reveal matters of significance to the pro forma
consolidated financial statements, and we therefore make no representation about
the sufficiency  of  the  procedures  for  the purposes  of  a  reader  of  such
statements.

Toronto, Canada                                       (Signed) ERNST & YOUNG LLP
March 10, 2004                                             Chartered Accountants

                COMMENTS FOR UNITED STATES READERS ON DIFFERENCE
             BETWEEN CANADIAN AND UNITED STATES REPORTING STANDARDS

     The  above report,  provided solely  pursuant to  Canadian requirements, is
expressed in accordance with standards of reporting generally accepted in Canada
which contemplates the expression of an opinion with respect to the  compilation
of  pro forma financial  statements. United States standards  do not provide for
the expression  of  an  opinion  on  the  compilation  of  pro  forma  financial
statements.  To  report  in  conformity  with  United  States  standards  on the
reasonableness of the  pro forma adjustments  and their application  to the  pro
forma  financial statements  requires an  examination or  review which  would be
substantially greater in scope  than the review as  to compilation only that  we
have  conducted. Consequently, under United States  standards we would be unable
to express  an opinion  with  respect to  the  compilation of  the  accompanying
unaudited  pro  forma consolidated  balance sheet  and  the unaudited  pro forma
consolidated statement of loss.

Toronto, Canada                                       (Signed) ERNST & YOUNG LLP
March 10, 2004                                             Chartered Accountants
                                       I-1


                                 HEMOSOL CORP.

                 UNAUDITED PRO FORMA CONSOLIDATED BALANCE SHEET
                            AS AT DECEMBER 31, 2003
                           (in thousands of dollars)

<Table>
<Caption>
                                                           HEMOSOL INC. AS AT
                                     HEMOSOL CORP. AS AT      DECEMBER 31,       PRO FORMA                 PRO FORMA
                                      FEBRUARY 24, 2004           2003          ADJUSTMENTS     NOTES     CONSOLIDATED
                                     -------------------   ------------------   -----------   ---------   ------------
                                                                                           
ASSETS
CURRENT
Cash and cash equivalents..........       --                       8,125          13,100            2.1       21,225
Cash held in escrow................       --                         448           1,000            2.1        1,448
Amounts receivable and prepaids....       --                         735                                         735
Inventory..........................       --                       1,274                                       1,274
                                          --------              --------                                    --------
TOTAL CURRENT ASSETS...............       --                      10,582                                      24,682
                                          --------              --------                                    --------
OTHER
Property, plant and equipment,
  net..............................       --                      83,881                                      83,881
Patents and trademarks, net........       --                       1,368                                       1,368
License technology.................       --                       2,520                                       2,520
Deferred charges, net..............       --                       2,026                                       2,026
                                          --------              --------                                    --------
TOTAL OTHER ASSETS.................       --                      89,795                                      89,795
                                          --------              --------                                    --------
                                                                 100,377                                     114,477
                                          ========              ========                                    ========
LIABILITIES AND SHAREHOLDERS' EQUITY
CURRENT
Accounts payable and accrued
  liabilities......................       --                       3,394                                       3,394
Short-term debt....................       --                      20,000                                      20,000
                                          --------              --------                                    --------
TOTAL CURRENT LIABILITIES..........       --                      23,394                                      23,394
                                          --------              --------                                    --------
LONG TERM LIABILITIES..............       --
Minority interest..................       --                          --           6,376       2.2, 2.4        6,376
Future tax liability...............       --                          --           5,500            2.5        5,500
                                          --------              --------                                    --------
TOTAL LONG TERM LIABILITIES........       --                          --                                      11,876
                                          --------              --------                                    --------
                                                                  23,394                                      35,270
                                          ========              ========                                    ========
SHAREHOLDERS' EQUITY
Common shares......................       --                     305,983                                     305,983
Non-employee warrants and
  options..........................       --                      15,642            (590)           2.3       15,052
Contributed surplus................       --                       8,535             590            2.3        9,125
Deficit............................       --                    (253,177)          2,224      2.1, 2.2,     (250,953)
                                          --------              --------                                    --------
                                                                                               2.4, 2.5
TOTAL SHAREHOLDERS' EQUITY.........       --                      76,983                                      79,207
                                          --------              --------                                    --------
                                                                 100,377                                     114,477
                                          ========              ========                                    ========
</Table>

                                       I-2


                                 HEMOSOL CORP.

               UNAUDITED PRO FORMA CONSOLIDATED STATEMENT OF LOSS
                      FOR THE YEAR ENDED DECEMBER 31, 2003
                (in thousands of dollars, except per share data)

<Table>
<Caption>
                                                         HEMOSOL INC.
                                                      FOR THE YEAR ENDED
                                                         DECEMBER 31,       PRO FORMA             PRO FORMA
                                                             2003          ADJUSTMENTS   NOTES   CONSOLIDATED
                                                      ------------------   -----------   -----   ------------
                                                                                     
EXPENSES
Research and development
  Scientific and process............................        10,773            2,537       3.2       13,310
  Regulatory and clinical...........................         5,817               58       3.2        5,875
Administration......................................         6,586            2,285       3.2        8,871
Marketing and business development..................         1,760                                   1,760
Support services....................................         1,297               39       3.2        1,336
Write-off of property, plant and equipment..........         4,654                                   4,654
Write-off of patents and trademarks.................           846                                     846
Foreign currency translation........................           380                                     380
                                                            ------                                  ------
Loss from operations................................        32,113                                  37,032
Amortization of deferred charges....................         5,009                                   5,009
Interest income.....................................          (153)                                   (153)
Interest expense....................................           688                                     688
Miscellaneous income................................        (2,871)                                 (2,871)
                                                            ------                                  ------
Loss before income taxes............................        34,786                                  39,705
Provision for income taxes..........................           156                                     156
                                                            ------                                  ------
Net loss before minority interest...................        34,942                                  39,861
Minority interests' share of net loss...............            --           (2,446)      3.1       (2,446)
                                                            ------                                  ------
Net loss for the year...............................        34,942                        3.3       37,415
                                                            ======                                  ======
Net loss per share..................................          0.75                                    0.80
                                                            ======                                  ======
Weighted average number of common shares
  outstanding.......................................        46,837                                  46,837
                                                            ======                                  ======
</Table>

                                       I-3


                                 HEMOSOL CORP.

              NOTES TO PRO FORMA CONSOLIDATED FINANCIAL STATEMENTS
                               FEBRUARY 24, 2004
               (ALL DOLLAR AMOUNTS IN THOUSANDS, EXCEPT AS NOTED)

1.  BASIS OF PRESENTATION

   The accompanying  unaudited pro  forma consolidated  financial statements  of
   Hemosol  Corp. ("New Hemosol") have been prepared  to reflect the impact of a
   Plan of  Arrangement contemplated  by an  Arrangement Agreement  dated as  of
   February  11, 2004  involving Hemosol Inc.  ("Hemosol"), its securityholders,
   and MDS Inc. that will allow Hemosol's business to benefit from a significant
   portion of its existing and unutilized income tax losses and other tax assets
   through a transaction that will result in the Hemosol Inc. business receiving
   $16 million of cash.

   The accompanying  unaudited  pro  forma  consolidated  balance  sheet  as  at
   December  31, 2003 and the unaudited pro forma consolidated statement of loss
   for the year ended December 31, 2003 have been prepared by management of  New
   Hemosol using the accounting policies disclosed in the consolidated financial
   statements  of  Hemosol. In  the opinion  of management  of New  Hemosol, the
   unaudited pro forma consolidated  balance sheet and  the unaudited pro  forma
   consolidated statement of loss include all adjustments necessary for the fair
   presentation   of  the  proposed  transaction  in  accordance  with  Canadian
   generally accepted accounting principles. The impact of material  differences
   between Canadian and U.S. generally accepted accounting principles is set out
   in note 4.

   The  unaudited pro forma  consolidated balance sheet  and unaudited pro forma
   consolidated  statement  of  loss  have   been  prepared  from  the   audited
   consolidated  financial statements  of Hemosol as  at and for  the year ended
   December 31,  2003,  and the  audited  balance sheet  of  New Hemosol  as  at
   February  24, 2004.  The unaudited pro  forma consolidated  balance sheet has
   been prepared as if the reorganization occurred on December 31, 2003, and the
   unaudited consolidated statement of loss for the year ended December 31, 2003
   has been prepared as if the reorganization had occurred on January 1, 2003.

   The unaudited pro forma consolidated financial statements are not intended to
   present or  be indicative  of  the consolidated  financial position  and  the
   consolidated   results  of  operations  that   would  have  occurred  if  the
   transactions had  been in  effect on  the dates  indicated or  the  financial
   position  or  operating  results  that  may be  obtained  in  the  future. In
   preparing these unaudited pro forma consolidated financial statements, except
   as otherwise noted,  no adjustments  have been made  to reflect  transactions
   which have occurred since the dates indicated.

2.  UNAUDITED PRO FORMA CONSOLIDATED BALANCE SHEET

   The  following assumptions and adjustments have been made to the consolidated
   balance sheet  of New  Hemosol as  at February  24, 2004  and Hemosol  as  at
   December  31, 2003 to reflect  the transaction described in  note 1 as if the
   transaction had occurred on December 31, 2003:

    2.1  Benefit of the Arrangement

       To record cash  receipt of  $14.1 million, net  of estimated  transaction
       expenses  of approximately  $1.9 million,  arising from  the arrangement,
       including $1 million to be held in escrow.

    2.2  Minority Interest

       To reflect the 7% minority interest in the business that is controlled by
       New Hemosol.

    2.3  Reduction of 500,000 warrants

       To record a $590 increase in  contributed surplus and reduction in  share
       capital  resulting from  the surrender  of 500,000  warrants by  MDS Inc.
       previously issued and recorded in  connection with Hemosol's $20  million
       loan with The Bank of Nova Scotia.

    2.4  Distribution of 0.44% of Hemosol

       To  reflect  the  accounting  whereby the  shareholders  of  New Hemosol,
       excluding MDS Inc., will  receive a 0.44% interest  in Hemosol after  the
       Plan of Arrangement.

    2.5  Future tax liability

       To  reflect  the future  tax liability  that  arises from  the difference
       between the tax basis  and accounting basis for  the property, plant  and
       equipment.  This future tax liability may  be offset by future tax assets
       which may include future non-capital operating losses of New Hemosol.  No
       such  future non-capital  losses have been  reflected in  these pro forma
       consolidated financial statements.

3.  UNAUDITED PRO FORMA CONSOLIDATED STATEMENTS OF OPERATIONS

    3.1  Minority Interest

       To reflect the 7% minority interests' share of losses.

    3.2  Stock Option Expense

       In October 2003, Hemosol's  board of directors approved  the grant of  an
       aggregate  of 2,766,225 options  to certain executives  of Hemosol, which
       options (a) may  be exercised to  purchase common shares  at an  exercise
       price of $0.90 per share, (b) will fully vest on October 29, 2004 subject
       to Hemosol attaining certain prescribed targets and (c) will otherwise be
       subject  to the terms  and conditions of Hemosol's  stock option plan. In
       addition, in December  2003, Hemosol's  board of  directors approved  the
       grant of an aggregate of up to 775,000 options to Hemosol's directors and
       non-executive  employees,  which  options may  be  exercised  to purchase
       common shares

                                       I-4

                                 HEMOSOL CORP.

              NOTES TO PRO FORMA CONSOLIDATED FINANCIAL STATEMENTS
                               FEBRUARY 24, 2004
               (ALL DOLLAR AMOUNTS IN THOUSANDS, EXCEPT AS NOTED)

       at an exercise price of $1.60 per share and will be subject to the  terms
       and conditions (including vesting) of Hemosol's stock option plan. All of
       these   options  were  granted  subject  to  shareholder  and  regulatory
       approval. These options have been expensed and recorded as an addition to
       share capital in the pro forma  financial statements as if they had  been
       issued on January 1, 2003.

       The fair value of all options granted during the year was estimated using
       the  Black-Scholes  option  pricing  model  with  the  following weighted
       average assumptions:

<Table>
<Caption>
                                                              2003
                                                              -----
                                                           
Expected option life [years]................................   2.7
Volatility..................................................   0.96
Risk-free interest rate.....................................   2.5%
Dividend yield..............................................   0.0%
</Table>

       The Black-Scholes model, used by  Hemosol to calculate option values,  as
       well  as  other  accepted  option  valuation  models,  were  developed to
       estimate fair  value  of  freely  tradable,  fully  transferable  options
       without  vesting restrictions, which  significantly differ from Hemosol's
       stock option awards.  These models  also require  four highly  subjective
       assumptions,  including future  stock price volatility  and expected time
       until exercise, which greatly affect the calculated values.

    3.3  Net loss for the year

       The estimated net gain  on this transaction amounting  to $4,921 has  not
       been  recognized in  the pro  forma consolidated  statement of  loss. The
       estimated net gain comprises  cash of $16,000 and  the fair value of  the
       0.44%  interest in Hemosol after the  Plan of Arrangement of $2,900, less
       the 7%  minority interest  in  the business  that  is controlled  by  New
       Hemosol  of  $6,579,  future  tax  liabilities  of  $5,500  and estimated
       transaction costs of $1,900.

4.  RECONCILIATION OF PRO FORMA RESULTS REPORTED UNDER CANADIAN GAAP WITH U.S.
    GAAP

   Hemosol prepares  its consolidated  financial statements  in accordance  with
   Canadian  generally accepted  principles ("Canadian  GAAP"), which  differ in
   certain material respects from those  applicable in the United States  ("U.S.
   GAAP").

   The  material  differences  as  they  apply  to  the  pro  forma consolidated
   financial statements are as follows:

<Table>
<Caption>
                                                                     YEAR ENDED
    PRO FORMA NET LOSS RECONCILIATION                             DECEMBER 31, 2003
    ---------------------------------                             -----------------
                                                                          $
                                                               
    Pro forma net loss for the year, under Canadian GAAP........       37,415
    Adjustments:
    Adjustment for patents and trademarks(1)....................         (808)
    Adjustment for license technology(2)........................        2,520
    Minority interest's share of net losses(3)..................         (120)
                                                                       ------
    Pro forma net loss and comprehensive loss for the year,
      under U.S. GAAP...........................................       39,007
                                                                       ======
    Pro forma net loss per share, under U.S. GAAP...............         0.83
                                                                       ======
</Table>

                                       I-5

                                 HEMOSOL CORP.

              NOTES TO PRO FORMA CONSOLIDATED FINANCIAL STATEMENTS
                               FEBRUARY 24, 2004
               (ALL DOLLAR AMOUNTS IN THOUSANDS, EXCEPT AS NOTED)

<Table>
<Caption>
                                                                        AS AT
    PRO FORMA BALANCE SHEET RECONCILIATION                        DECEMBER 31, 2003
    --------------------------------------                        -----------------
                                                                          $
                                                               
    PATENTS AND TRADEMARKS
      Balance under Canadian GAAP...............................          1,368
      Adjustment for patents and trademarks(1)..................         (1,368)
                                                                      ---------
      Balance under U.S. GAAP...................................             --
                                                                      =========
    LICENSE TECHNOLOGY
      Balance under Canadian GAAP...............................          2,520
      Adjustment for license technology(2)......................         (2,520)
                                                                      ---------
      Balance under U.S. GAAP...................................             --
                                                                      =========
    MINORITY INTEREST
      Balance under Canadian GAAP...............................          6,376
      Adjustment to minority interest for U.S. GAAP
        adjustments(3)..........................................           (272)
                                                                      ---------
      Balance under U.S. GAAP...................................          6,104
                                                                      =========
    DEFICIT
      Balance under Canadian GAAP...............................       (250,953)
      Adjustment for patents and trademarks(1)..................         (1,368)
      Adjustment for licence technology(2)......................         (2,520)
      Adjustment to minority interest for U.S. GAAP
        adjustments(3)..........................................            272
                                                                      ---------
      Balance under U.S. GAAP...................................       (254,569)
                                                                      =========
    PRO FORMA BOOK VALUE PER SHARE..............................           1.37
                                                                      =========
</Table>

    (1) Patents and trademarks

       Under Canadian GAAP, patent and trademark costs are carried at cost  less
       accumulated  amortization and are amortized on a straight line basis over
       their estimated economic life. Under U.S. GAAP, these costs are generally
       expensed as incurred.

    (2) License technology

       Under U.S. GAAP, acquired research and development having no  alternative
       future use must be written off at the time of acquisition. The adjustment
       represents the value of the license technology capitalized under Canadian
       GAAP.

    (3)Minority interest

       Minority  interest and  its related  share of  net losses  is adjusted to
       reflect adjustments to U.S. GAAP.

                                       I-6


              ANNEX J -- PRO FORMA FINANCIAL STATEMENTS FOR LABCO

                                     LABCO

                            PRO FORMA BALANCE SHEET
                            AS AT DECEMBER 31, 2003
                           (in thousands of dollars)

<Table>
<Caption>
                                             HEMOSOL INC.
                                                 AS AT          PRO FORMA                         PRO FORMA
                                           DECEMBER 31, 2003   ADJUSTMENTS         NOTES          COMBINED
                                           -----------------   -----------   ------------------   ---------
                                                                                      
ASSETS
CURRENT
Cash and cash equivalents................         8,573           (8,573)               4(a)(i)         --
Amounts receivable and prepaids..........           735             (735)               4(a)(i)         --
Inventory................................         1,274           (1,274)               4(a)(i)         --
                                                -------                                            -------
TOTAL CURRENT ASSETS.....................        10,582                                                 --
                                                -------                                            -------
OTHER
Investment in Blood Products
  Partnership............................            --            5,389                4(a)(i)      5,389
Investment in Labs Partnership...........            --           33,521               4(a)(ii)     33,521
Future tax asset.........................            --          120,000              4(a)(iii)    120,000
Property, plant and equipment, net.......        83,881          (83,881)               4(a)(i)         --
Patents and trademarks, net..............         1,368           (1,368)               4(a)(i)         --
Licence technology.......................         2,520           (2,520)               4(a)(i)         --
Deferred charges, net....................         2,026           (2,026)               4(a)(i)         --
                                                -------                                            -------
TOTAL OTHER ASSETS.......................        89,795                                            158,910
                                                -------                                            -------
                                                100,377                                            158,910
                                                =======                                            =======
LIABILITIES AND SHAREHOLDERS' EQUITY
CURRENT
Accounts payable and accrued
  liabilities............................         3,394           (3,394)               4(a)(i)         --
Short-term debt..........................        20,000          (20,000)               4(a)(i)         --
Due to Labs Partnership..................                         16,000               4(a)(iv)     16,000
                                                -------                                            -------
TOTAL CURRENT LIABILITIES................        23,394                                             16,000
                                                -------                                            -------
LONG TERM
Unrealized benefit on acquisition of tax
  losses.................................                        104,000              4(a)(iii)    104,000
SHAREHOLDERS' EQUITY.....................        76,983          (38,073)     4(a)(i), 4(a)(ii)     38,910
                                                -------                                            -------
                                                100,377                                            158,910
                                                =======                                            =======
BOOK VALUE PER SHARE.....................       $  1.64                                            $ 0.003
                                                =======                                            =======
</Table>

                                       J-1


                                     LABCO

                       PRO FORMA STATEMENT OF OPERATIONS
                      FOR THE YEAR ENDED DECEMBER 31, 2003
             (in thousands of dollars except for share information)

<Table>
<Caption>
                                                 HEMOSOL INC.
                                              FOR THE YEAR ENDED
                                                 DECEMBER 31,       PRO FORMA                   PRO FORMA
                                                     2003          ADJUSTMENTS     NOTES        COMBINED
                                              ------------------   -----------   ---------   ---------------
                                                                                 
EXPENSES
Research and development
  Scientific and processes..................         (10,773)         10,773     4(b)(iii)                --
  Regulatory and clinical...................          (5,817)          5,817     4(b)(iii)                --
                                                  ----------                                 ---------------
Total Research and development..............         (16,590)                                             --
                                                  ----------                                 ---------------
Administration..............................          (6,586)          6,586     4(b)(iii)                --
Marketing and business development..........          (1,760)          1,760     4(b)(iii)                --
Support services............................          (1,297)          1,297     4(b)(iii)                --
Write-off of property, plant and equipment
  and patents and trademarks................          (5,500)          5,500     4(b)(iii)                --
Foreign currency translation loss...........            (380)            380     4(b)(iii)                --
                                                  ----------                                 ---------------
Loss from operations........................         (32,113)                                             --
                                                  ----------                                 ---------------
Equity earnings from Labs Partnership.......              --          47,618       4(b)(i)            47,618
Reversal of unrealized tax loss benefit.....                          14,900      4(b)(ii)            14,900
Amortization of deferred charges............          (5,009)          5,009     4(b)(iii)                --
Interest income.............................             153            (153)    4(b)(iii)                --
Interest expense............................            (688)            688     4(b)(iii)                --
Miscellaneous income........................           2,871          (2,871)    4(b)(iii)                --
                                                  ----------                                 ---------------
Income (loss) before income taxes...........         (34,786)                                         62,518
                                                  ----------                                 ---------------
PROVISION FOR INCOME TAXES
  Current...................................            (156)            156     4(b)(iii)                --
  Future....................................               0         (17,200)     4(b)(ii)           (17,200)
                                                  ----------                                 ---------------
Net Income (loss) for the period............         (34,942)                                         45,318
                                                  ==========                                 ===============
Net Income (loss) per share.................      $    (0.75)                                $         0.004
Weighted average number of common shares
  outstanding...............................      46,837,000                                  11,229,116,600
</Table>

                                       J-2


                                     LABCO

                    NOTES TO PRO FORMA FINANCIAL STATEMENTS
             (all amounts in thousands of dollars, except as noted)

1.  DESCRIPTION OF THE PLAN OF ARRANGEMENT

   The  proposed Plan of Arrangement consists of a series of steps that have the
   effect of re-organizing Hemosol Inc. ("Hemosol") and the Labs Business of MDS
   Inc. ("MDS") in order  to allow the reorganized  company to benefit from  the
   value  of  certain  Hemosol  tax  losses  and  undeducted  expenditures.  The
   reorganized company is called Labco (the "Company") herein.

2.  BASIS OF PRESENTATION

   The accompanying  unaudited  pro forma  financial  statements of  Labco  (the
   Company)  have been  prepared to  reflect the  impact of  a proposed  Plan of
   Arrangement involving the Company, Hemosol Inc., and MDS Inc.

   The accompanying unaudited pro  forma balance sheet as  at December 31,  2003
   and  the  unaudited pro  forma  statement of  operations  for the  year ended
   December 31,  have been  prepared  by management  of  the Company  using  the
   accounting  policies below. In the opinion  of management of the Company, the
   unaudited pro forma balance  sheet and the unaudited  pro forma statement  of
   operations include all adjustments necessary for the fair presentation of the
   proposed   transaction  in   accordance  with   Canadian  generally  accepted
   accounting principles. The  impact of material  differences between  Canadian
   and U.S. generally accepted accounting principles is set out in note 5.

   The  unaudited pro forma  balance sheet and unaudited  pro forma statement of
   operations have  been prepared  from  the historical  consolidated  financial
   statements  of Hemosol  Inc. as  at December 31,  2003, and  from the summary
   financial information  of the  Labs  Business as  at  October 31,  2003.  The
   unaudited pro forma balance sheet has been prepared as if the re-organization
   occurred  on December 31, 2003, and the unaudited statement of operations for
   the year ended December  31, 2003 as if  the re-organization had occurred  on
   January 1, 2003.

   By  their nature, the unaudited pro forma financial statements do not purport
   to be indicative of the financial  position and the results of operations  of
   the Company that would have occurred if the transaction had been in effect on
   the  dates indicated or the financial  position or operating results that may
   be obtained in the future. In  preparing these unaudited pro forma  financial
   statements,  except  as otherwise  noted, no  adjustments  have been  made to
   reflect transactions which have occurred since the dates indicated.

3.  ACCOUNTING POLICIES

   Accounting policies  used in  the preparation  of these  unaudited pro  forma
   financial  statements  are  in accordance  with  Canadian  generally accepted
   accounting principles. The  impact of material  differences between  Canadian
   and U.S. generally accepted accounting principles is set out in note 5.

   Entities  which are not controlled  and over which the  Company does not have
   the ability to  exercise significant  influence are accounted  for using  the
   cost  method. Entities  which are not  controlled but where  the Company does
   have the ability to  exercise significant influence  are accounted for  using
   the equity method.

   The  Company follows  the liability  method of  accounting for  income taxes.
   Under this method, future  income tax assets  and liabilities are  determined
   based  on differences between financial reporting and tax bases of assets and
   liabilities, measured using  substantively enacted tax  rates and laws  which
   are expected to be in effect when the differences are expected to reverse.

4.  PRO FORMA ASSUMPTIONS AND ADJUSTMENTS

   The following assumptions and adjustments have been made to the balance sheet
   of  the Company  as of  as at  December 31,  2003 to  reflect the transaction
   described in note 1:

    (a)  Pro Forma Balance Sheet

       (i)  All assets and liabilities of  the Blood Products Business  transfer
            to  the  Blood  Products  Partnership as  a  pro  rata  reduction in
            shareholders' equity equal  to 93% of  the value of  the net  assets
            transferred  and recognition of a  7% limited partnership investment
            in the Blood Products Partnership.

       (ii) Investment in Labs Business acquired at 99.99% of the book value  of
            $34 million in exchange for share capital of Labco.

       (iii) Estimated  value of Hemosol loss carryforward amounts and unclaimed
             tax credits of  $120 million has  been recorded as  a deferred  tax
             asset,  together with an  unrealized benefit on  acquisition of tax
             losses of $104 million.

       (iv) To record $16 million loan from the Labs Business to fund redemption
of preferred shares.

    (b) Pro Forma Income Statement

       (i)  To reflect  99.99%  equity  interest in  the  Labs  Partnership  net
            income.

       (ii) Provision  for deferred income taxes at  36% of Labs Business income
            for the year and  reversal of a portion  of the unrealized tax  loss
            benefit.

       (iii) To  eliminate Hemosol operation revenues and expenses now accounted
             for at cost.

       (iv) Pro forma  earnings per  share have  been calculated  assuming  that
            11,229,116,600 Labco shares are issued under the Plan of Arrangement
            at the beginning of the respective periods.

                                       J-3


5.  UNITED STATES GENERALLY ACCEPTED ACCOUNTING PRINCIPLES

   The Company prepares its consolidated financial statements in accordance with
   Canadian generally accepted  accounting principles, which  differ in  certain
   material respects from those applicable in the United States.

   Under  Canadian generally  accepted accounting principles,  since the Company
   does not have the  ability to exercise significant  influence over the  Blood
   Products Business, the Company accounts for the Blood Products Business using
   the  cost  method. Under  US  generally accepted  accounting  principles, all
   limited partnerships  are accounted  for  using the  equity method  when  the
   limited  partnership interest  represents 3-5%.  Since the  Company has  a 7%
   interest in  the  Blood Products  Partnership,  under US  generally  accepted
   accounting  principles, the  Blood Products  Business would  be accounted for
   using the equity method. The impact on the pro forma statement of  operations
   would have been to reduce net income for the period by $2.6 million.

                                       J-4


                  ANNEX K -- DIRECTORS AND OFFICERS OF HEMOSOL

     Set  forth below are the names and business addresses of each person who is
a director and executive officer of Hemosol and the present principal occupation
or employment of each such person  and the name, principal business and  address
of  the corporation or other organization in which such occupation or employment
of each such person  is conducted. All of  the directors and executive  officers
have  held their present positions or  other executive positions with Hemosol or
one or more subsidiaries or associated companies, or with the same or associated
firms or organizations,  for the  last five years,  unless otherwise  indicated.
Each  person listed below is a citizen of Canada, unless otherwise indicated. No
person listed below has been  convicted in a criminal  proceeding or has been  a
party  to any judicial  or administrative proceeding during  the past five years
resulting in a judgement, decree or final order enjoining the person from future
violations of,  or prohibiting  activities  subject to,  U.S. federal  or  state
securities  laws,  or  a finding  of  any  violation of  U.S.  federal  or state
securities laws.

DIRECTORS AND OFFICERS OF HEMOSOL

<Table>
<Caption>
NAME, POSITION WITH HEMOSOL AND CURRENT        PRESENT PRINCIPAL OCCUPATION OR EMPLOYMENT:
BUSINESS ADDRESS                               MATERIAL POSITIONS HELD DURING THE PAST FIVE YEARS
- ---------------------------------------        --------------------------------------------------
                                            
Edward K. Rygiel.............................  Executive Chairman, MDS Capital Corp.
Chairman of the Board and Director             (since May 2003) and Executive Vice President, MDS
100 International Blvd.                        President and Chief Executive Officer, MDS Capital
Etobicoke, Ontario                             Corp. (December 1994 to April 2003)
M9W 6J7
George W. Masters............................  Chairman, Biocatalyst Yorkton Inc.
Vice-Chairman of the Board and Director
160 Eglinton Ave East
Suite 600
Toronto, Ontario
M4P 3B5
Mitchell J. Kostuch..........................  President, Kostuch Publications
Director
Suite 101
23 Lesmill Road
Toronto, Ontario
M3B 3P6
R. Ian Lennox................................  Group President & CEO
Director                                       Pharmaceutical & Biotech Markets, MDS (after
                                               September 2002)
100 International Blvd.
Etobicoke, Ontario                             President and Chief Executive Officer, MDS Drug
M9W 6J7                                        Discovery & Development, MDS
                                               (April 2000 to September 2002)
                                               President & Chief Executive Officer
                                               Phoenix Life Sciences Inc.
                                               (August 1999 to April 2000)
                                               President and Chief Executive Officer, Drug
                                               Royalty
                                               Corporation Inc. (March 1997 to August 1999)
</Table>

                                       K-1


<Table>
<Caption>
NAME, POSITION WITH HEMOSOL AND CURRENT        PRESENT PRINCIPAL OCCUPATION OR EMPLOYMENT:
BUSINESS ADDRESS                               MATERIAL POSITIONS HELD DURING THE PAST FIVE YEARS
- ---------------------------------------        --------------------------------------------------
                                            
Wilfred G. Lewitt............................  Chairman, MDS (since April 1996)
Director
100 International Blvd.
Etobicoke, Ontario
M9W 6J7
Edward E. McCormack..........................  Business Advisor and Independent Director
Director                                       (since June 2003)
30 Golfdale Road                               President of Almad Investments and Beaver Power
Toronto, Ontario                               Inc.
M4N 2B6                                        (January 2000 to June 2003)
                                               CFO of Novopharm Inc. (October 1987 to December
                                               1999)
Robert H. Painter............................  Professor Emeritus: Biochemistry and Immunology,
Director                                       Faculty of Medicine, University of Toronto
                                               (retired)
Residence address:
41 Gatcombe Circle
Richmond Hill, Ontario
L4C 9P5
C. Robert Valeri.............................  Director of the Naval Blood Research Laboratory,
Director                                       Professor of Medicine and Research, Professor of
                                               Surgery, Boston University School of Medicine
Citizen of the USA
61 Albany Street
Boston, Massachusetts
02118, USA
Nelson M. Sims...............................  President & CEO, Novavax Inc. (since August 2003)
Director
                                               Director of MDS (since March 2001)
Citizen of the USA
                                               Executive with Eli Lilly and Company, including
8320 Guilford Road                             President of Eli Lilly Canada Inc. (1973 to 2001)
Suite C
Columbia, Maryland
21046 USA
Lee D. Hartwell..............................  President, Chief Executive Officer and Chief
Director, President, Chief Executive Officer   Financial Officer, Hemosol
and Chief Financial Officer
                                               Prior thereto, Vice President/Chief Financial
2585 Meadowpine Blvd.,                         Officer, Bracknell Corp.
Mississauga, Ontario
L5N 8H9
</Table>

                                       K-2


<Table>
<Caption>
NAME, POSITION WITH HEMOSOL AND CURRENT        PRESENT PRINCIPAL OCCUPATION OR EMPLOYMENT:
BUSINESS ADDRESS                               MATERIAL POSITIONS HELD DURING THE PAST FIVE YEARS
- ---------------------------------------        --------------------------------------------------
                                            
Dirk Alkema..................................  Vice President, Operations, Hemosol
2585 Meadowpine Blvd.,                         Prior thereto, Director of Manufacturing, Langford
Mississauga, Ontario                           Laboratories Ltd. (biological products)
L5N 8H9
David Bell...................................  Vice President, Drug Discovery, Hemosol
Vice President, Drug Discovery
                                               Prior thereto, Director, Stem Cell Research
2585 Meadowpine Blvd.,
Mississauga, Ontario                           Prior thereto, Group Leader, Cancer Biology,
L5N 8H9                                        BioChem Therapeutics Inc. (a healthcare company)
Michael Mathews..............................  Vice President, U.S. Operations, Hemosol
Vice President, U.S. Operation
                                               Prior thereto, President of the Blood Bank
8 Wood Hollow Road                             Division, Haemonetics Corporation
Suite 301
Parsippany, New Jersey                         Prior thereto, executive positions within the
07054 USA                                      merged Baxter Healthcare and American Hospital
                                               Supply corporations
</Table>

                                       K-3


             ANNEX L -- DIRECTORS AND OFFICERS OF MDS AND MDS SUBCO

DIRECTORS AND OFFICERS OF MDS

     Set forth below are the names, business addresses and telephone numbers  of
each  person who  is a  director and  executive officer  of MDS  and the present
principal occupation or employment of each  such person and the name,  principal
business  and address  of any  other corporation  or organization  in which such
person has held  a material occupation,  position, office or  employment in  the
past  five years. All  of the directors  and executive officers  have held their
present positions  or  other  executive  positions  with  MDS  or  one  or  more
subsidiaries  or associated companies,  or with the same  or associated firms or
organizations, for the last five years, unless otherwise indicated. Each  person
listed below is a citizen of Canada, unless otherwise indicated. Neither MDS nor
any  person listed below has been convicted in a criminal proceeding or has been
a party to any judicial or administrative proceeding during the past five  years
resulting in a judgement, decree or final order enjoining the person from future
violations  of,  or prohibiting  activities subject  to,  U.S. federal  or state
securities laws,  or  a  finding of  any  violation  of U.S.  federal  or  state
securities laws.

<Table>
<Caption>
                                               PRESENT PRINCIPAL OCCUPATION OR EMPLOYMENT:
NAME AND CURRENT BUSINESS ADDRESS              MATERIAL POSITIONS HELD DURING THE PAST FIVE YEARS
- ---------------------------------              --------------------------------------------------
                                            
Paul S. Anderson.............................  Director, MDS and Director, Albany Molecular
                                               Research, Inc. (drug discovery and development
100 International Blvd.                        company) (2003 to 2004); prior thereto, Vice
Toronto, ON                                    President Research, Bristol-Myers Squibb Company
(416) 675-6777                                 (pharmaceutical company) (2001 to 2002), Vice
Citizen of the United States                   President Research, Dupont Pharmaceuticals Company
                                               (pharmaceutical company) (1998 to 2001)
Clarence J. Chandran.........................  Director, MDS Inc. and President, Business Process
100 International Blvd.                        Services, CGI Group Inc. (since November 2003) and
Toronto, ON                                    Chairman of the board, India, CGI Group Inc.
(416) 675-6777                                 (since February 2004); prior thereto, Chief
                                               Operating Officer of Nortel Networks Corp.
                                               (communications technology and infrastructure
                                               company) (May 2000 to May 2001)
Wendy K. Dobson..............................  Director, MDS, Director, TransCanada Pipelines
                                               Limited (energy company) (since 1992), Director,
105 St. George Street                          The Toronto-Dominion Bank (Canadian chartered
Toronto, ON                                    bank) (since 1991) and Professor, University of
(416) 978-7792                                 Toronto (since 1991)
William A. Etherington.......................  Director, MDS and Director, IBM Corporation (since
                                               October 2001); prior thereto, Senior Vice
199 Bay Street, Suite 4460                     President, Sales, IBM Corporation (June 1998 to
Toronto, ON                                    August 2001)
(416) 980-3300
John R. Evans................................  Director, MDS and Chairman of the board for
                                               Torstar Corporation (newspaper and book publishing
One Yonge Street, 6th Floor                    company) (since 1995)
Toronto, ON
(416) 869-4015
Wilfred G. Lewitt............................  Chairman, MDS (since April 1996)
100 International Blvd.
Toronto, ON
(416) 675-6777
Robert W. Luba...............................  Director, MDS and President, Luba Financial Inc.
                                               (mid-market merchant banker) (since 1994)
77 King Street West, Suite 4545
Toronto, ON
(416) 214-0568
</Table>

                                       L-1


<Table>
<Caption>
                                               PRESENT PRINCIPAL OCCUPATION OR EMPLOYMENT:
NAME AND CURRENT BUSINESS ADDRESS              MATERIAL POSITIONS HELD DURING THE PAST FIVE YEARS
- ---------------------------------              --------------------------------------------------
                                            
John T. Mayberry.............................  Director, MDS; prior thereto, Chairman and Chief
                                               Executive Officer, Dofasco Inc. (steel
100 International Blvd.                        manufacturer) (May 2002 to May 2003), President
Toronto, ON                                    and Chief Executive Officer, Dofasco Inc. (January
(416) 675-6777                                 1991 to May 2002)
Mary Mogford.................................  Director, MDS, Director, Empire Company Limited
                                               (grocery, real estate, theatres, investments)
100 International Blvd.                        (since September 2002), Director, Falconbridge
Toronto, ON                                    Limited (metal producer) (since December 1995),
(416) 675-6777                                 Director, Potash Corporation of Saskatchewan Inc.
                                               (potash producer) (since May 2001), Director,
                                               Sears Canada Inc. (since April 1999), Director,
                                               Sears Canada Bank (subsidiary of Sears Canada
                                               Inc.) (since January 2004)
John A. Rogers...............................  Director, President and Chief Executive Officer,
                                               MDS (since March 1996)
100 International Blvd.
Toronto, ON
(416) 675-6777
Nelson M. Sims...............................  Director, MDS and President and Chief Executive
                                               Officer, Novavax, Inc. (biopharmaceutical company)
8320 Guilford Road, Suite C                    (since August 2003); prior thereto, executive of
Columbia, MD                                   Eli Lilly and Company (pharmaceutical company)
(301) 854-3900                                 (April 1973 to June 2001)
Citizen of the United States and Canada
Robert W. Breckon............................  Executive Vice President, Strategy and Corporate
                                               Development, MDS (since March 1999)
100 International Blvd.
Toronto, ON
Peter Brent..................................  Senior Vice President, General Counsel and
                                               Corporate Secretary, MDS (since 2002); prior
100 International Blvd.                        thereto, Vice President, General Counsel and
Toronto, ON                                    Corporate Secretary, MDS (1998 to 2002)
(416) 675-6777
Mary E. Federau..............................  Senior Vice President, Talent, MDS (since April
                                               2000); prior thereto, Executive Vice President of
100 International Blvd.                        the Hospital for Sick Children
Toronto, ON
(416) 675-6777
James A.H. Garner............................  Executive Vice President and Chief Financial
                                               Officer, MDS (since July 2003); prior thereto,
100 International Blvd.                        Senior Vice President, Finance and Chief Financial
Toronto, ON                                    Officer, Draxis Health Inc. (radiopharmaceutical
(416) 675-6777                                 company) (September 1996 to June 2003)
John D. Gleason..............................  Senior Vice-President, Business Development, MDS
                                               (since 1999)
100 International Blvd.
Toronto, ON
(416) 675-6777
</Table>

                                       L-2


<Table>
<Caption>
                                               PRESENT PRINCIPAL OCCUPATION OR EMPLOYMENT:
NAME AND CURRENT BUSINESS ADDRESS              MATERIAL POSITIONS HELD DURING THE PAST FIVE YEARS
- ---------------------------------              --------------------------------------------------
                                            
R. Ian Lennox................................  Group President and Chief Executive Officer
                                               Pharmaceutical and Biotech Markets, MDS (since
100 International Blvd.                        September 2002); prior thereto, President and
Toronto, ON                                    Chief Executive Officer, Drug Discovery and
(416) 675-6777                                 Development, MDS (April 2000 to September 2002),
                                               President and Chief Executive Officer, Phoenix
                                               International Life Sciences Inc. (a clinical
                                               research organization) (October 1999 to April
                                               2000), President and Chief Executive Officer, Drug
                                               Royalty Corporation Inc. (a pharmaceutical royalty
                                               interest acquisition company) (March 1997 to
                                               October 1999)
Sharon M. Mathers............................  Vice President, Investor Relations, MDS (since
                                               January 2001); prior thereto, Director, Investor
100 International Blvd.                        Relations, MDS Inc. (February 1998 to January
Toronto, ON                                    2001)
(416) 675-6777
John A. Morrison.............................  Group President and Chief Executive Officer,
                                               Healthcare Provider Markets, MDS (since September
100 International Blvd.                        2002); prior thereto, President and Chief
Toronto, ON                                    Executive Officer, MDS Nordion (radioisotopes and
(416) 675-6777                                 radiation technology division of MDS) (March 1992
                                               to September 2002)
Michael W.E. Nethercott......................  Vice President, Business Development, MDS; prior
                                               thereto, Global Marketing Director, Deloitte
100 International Blvd.                        Consulting (Belgium and Canada) (June 1996 to May
Toronto, ON                                    2003)
(416) 675-6777
James M. Reid................................  Executive Vice President, Organization Dynamics,
                                               MDS (since 1997)
100 International Blvd.
Toronto, ON
(416) 675-6777
David F. Poirier.............................  President, Enterprise Services and Chief
                                               Information Officer, MDS (since December 2003);
100 International Blvd.                        prior thereto, Executive Vice President and Chief
Toronto, ON                                    Information Officer, Hudson's Bay Company (retail
(416) 675-6777                                 company) (1998 to 2003)
Edward Rygiel................................  Executive Vice-President, MDS (since 1999); prior
                                               thereto, Executive Chairman, MDS Capital Corp. (a
100 International Blvd.                        health related venture capital firm) (2003 to
Toronto, ON                                    2004), Chairman and Chief Executive Officer, MDS
(416) 675-6777                                 Capital Corp. (1999 to 2003)
Alan D. Torrie...............................  Executive Vice President Global Markets and
                                               Technology, MDS (since 1987)
100 International Blvd.
Toronto, ON
(416) 675-6777
Peter D. Winkley.............................  Vice President, Finance, MDS (since January 1999);
                                               prior thereto, Corporate Controller, MDS (January
100 International Blvd.                        1997 to December 1998)
Toronto, ON
(416) 675-6777
</Table>

                                       L-3


<Table>
<Caption>
                                               PRESENT PRINCIPAL OCCUPATION OR EMPLOYMENT:
NAME AND CURRENT BUSINESS ADDRESS              MATERIAL POSITIONS HELD DURING THE PAST FIVE YEARS
- ---------------------------------              --------------------------------------------------
                                            
Ron Yamada...................................  Executive Vice-President, MDS Inc.
100 International Blvd.
Toronto, ON
(416) 675-6777
</Table>

DIRECTORS AND OFFICERS OF MDS SUBCO

     Set  forth  below  are the  names  of each  person  who is  a  director and
executive  officer  of  MDS  Subco  and  the  present  principal  occupation  or
employment  of each such person and the  name, principal business and address of
any other corporation or organization in which such a person has held a material
occupation, position, officer or employment in  the past five years. All of  the
directors  and executive  officers have  held their  present positions  or other
executive positions with  MDS Subco or  one or more  subsidiaries or  associated
companies,  or with the same or associated  firms or organizations, for the last
five years,  unless  otherwise  indicated.  The  current  business  address  and
telephone number for each of the directors and executive officer listed below is
that  of  MDS Subco:  100 International  Blvd,  Toronto, Ontario,  Canada, (416)
675-6777. MDS  Subco  was  incorporated  under  the laws  of  Canada  and  is  a
laboratory  services company. Each  person listed below is  a citizen of Canada,
unless otherwise indicated. Neither  MDS Subco nor any  person listed below  has
been  convicted in a criminal proceeding or has  been a party to any judicial or
administrative proceeding during the past  five years resulting in a  judgement,
decree  or  final  order enjoining  the  person  from future  violations  of, or
prohibiting activities subject to, U.S. federal  or state securities laws, or  a
finding of any violation of U.S. federal or state securities laws.

<Table>
<Caption>
                                               PRESENT PRINCIPAL OCCUPATION OR EMPLOYMENT:
NAME AND CURRENT BUSINESS ADDRESS              MATERIAL POSITIONS HELD DURING THE PAST FIVE YEARS
- ---------------------------------              --------------------------------------------------
                                            
Brian L. Sheridan............................  Director,  MDS  Subco and  Senior  Vice President,
                                               Medical Affairs, MDS (since September 2003); prior
                                               thereto,  Vice  President,  Medical  Affairs,  MDS
                                               Diagnostic   Services,  MDS   (September  2000  to
                                               September 2003),  Senior Medical  Consultant,  MDS
                                               Diagnostic  Services, MDS (June  1999 to September
                                               2000)   and   Medical   Director,   MDS    Ontario
                                               Laboratories, MDS (July 1997 to June 1999)
Bradley G. Legge.............................  Director,  MDS Subco  and Vice  President Finance,
                                               MDS (since June 2002); prior thereto, Director  of
                                               Finance,  Canadian Diagnostics,  MDS (May  2001 to
                                               June   2002),   Director   of   Finance,   Ontario
                                               Diagnostics, MDS (October 1997 to May 2001)
Hans Thunem..................................  Director,  MDS  Subco and  Senior  Vice President,
                                               Operations,  MDS  (since  November  2003);   prior
                                               thereto,  Vice President, Supply Chain, MDS (March
                                               2002 to  November  2003)  and  Vice  President  NA
                                               Operations,  Nortel Networks Corp. (communications
                                               technology and infrastructure  company) (May  1995
                                               to January 2001)
Anne Louis Aboud.............................  Vice  President and General Manager, MDS Subco and
                                               Vice  President  and   General  Manager,   Eastern
                                               Canada,  MDS  (since  November  11,  2003);  prior
                                               thereto Senior  Vice President,  TD Waterhouse  (a
                                               discount broker) (May 1999 to February 2002)
</Table>

                                       L-4


                 ANNEX M -- AMENDED AND RESTATED LABCO BY-LAWS

                                BY-LAW NUMBER 1
                A BY-LAW RELATING TO THE BUSINESS AND AFFAIRS OF
                                   LPBP INC.

                                   ARTICLE 1
                                 INTERPRETATION

1.1 DEFINITIONS

     In this by-law:

     "ACT"  means the  Business Corporations  Act (Ontario)  and the regulations
     enacted pursuant  to  it  and  any statute  and  regulations  that  may  be
     substituted for them, as amended from time to time;

     "ARTICLES"  means the articles, as that term  is defined in the Act, of the
     Corporation;

     "AUDITOR" means the auditor of the Corporation;

     "BOARD" means the board of directors of the Corporation;

     "BY-LAW" means a by-law of the Corporation;

     "CORPORATION" means the corporation incorporated on July 11, 1985 under the
     name "Hemosol Inc." and subsequently renamed "LPBP Inc.";

     "DIRECTOR" means a director of the Corporation;

     "OFFICER" means  an  officer  of  the Corporation,  and  reference  to  any
     specific   officer  is  to  the  individual  holding  that  office  of  the
     Corporation;

     "PERSON" means an individual,  body corporate, partnership, joint  venture,
     trust, unincorporated organization, association, the Crown or any agency or
     instrumentality thereof, or any entity recognized by law;

     "PROXYHOLDER" means an individual holding a valid proxy for a shareholder;

     "RESIDENT CANADIAN" has the meaning ascribed to that phrase in the Act;

     "SHAREHOLDER" means a shareholder of the Corporation;

     "TELEPHONIC  OR  ELECTRONIC  MEANS"  means  telephone  calls  or  messages,
     facsimile messages, electronic  mail, transmission of  data or  information
     through  automated touch-tone  telephone systems,  transmission of  data or
     information through computer networks, any other similar means or any other
     means prescribed by the Act; and

     "VOTING PERSON"  means,  in  respect  of  a  meeting  of  shareholders,  an
     individual  who is either a shareholder entitled to vote at that meeting, a
     duly authorized representative  of a  shareholder entitled to  vote at  the
     meeting or a proxyholder entitled to vote at that meeting.

1.2 NUMBER, GENDER AND HEADINGS

     In this by-law, words in the singular include the plural and vice-versa and
words  in one  gender include  all genders.  The insertion  of headings  in this
by-law and its division into articles,  sections and other subdivisions are  for
convenience  of reference only, and shall  not affect the interpretation of this
by-law.

1.3 BY-LAW SUBORDINATE TO OTHER DOCUMENTS

     This by-law is subordinate to, and should be read in conjunction with,  the
Act and the articles of the Corporation.

                                       M-1


1.4 COMPUTATION OF TIME

     The  computation of  time and  any period  of days  shall be  determined in
accordance with the Act.

                                   ARTICLE 2
                                   DIRECTORS

2.1 NOTICE OF MEETING

     Any director or the  president may call  a meeting of  the board by  giving
notice  stating the date, time and place of the meeting to each of the directors
other than  the director  giving that  notice. Notices  sent by  delivery or  by
telephonic  or electronic means shall  be sent no less  than 48 hours before the
time of the meeting. Notices sent by mail  shall be sent no less than five  days
before the day of the meeting.

     The  board may appoint, by resolution,  dates, time and places for meetings
of the board.  A copy  of any  such resolution shall  be sent  to each  director
forthwith  after being  passed, but  no other  notice is  required for  any such
meeting.

2.2 MEETINGS WITHOUT NOTICE

     A meeting of the board may be held without notice immediately following the
first or any annual meeting of Place of Meeting

2.3 PLACE OF MEETING

     A meeting of the board may be held at any place within or outside  Ontario,
and no such meeting need be held at a place within Canada.

2.4 NO NOTICE TO NEWLY APPOINTED DIRECTOR

     An  individual  need not  be  given notice  of  the meeting  at  which that
individual is appointed by the other directors  to fill a vacancy on the  board,
if that individual is present at that meeting.

2.5 QUORUM FOR BOARD MEETINGS

     If there are one or two directors, all of the directors constitute a quorum
at a meeting of the board. If there are more than 2 directors, 40% of the number
of  directors  shall constitute  a quorum  at a  meeting of  the board.  In this
section, the "number of directors" is either:

     (a)  the number of directors specified in the articles; or

     (b)  if a minimum and  maximum number of directors  is provided for in  the
          articles,   the  number  determined  from  time  to  time  by  special
          resolution or, if  the special  resolution empowers  the directors  to
          determine  the number, by  resolution of the directors,  or if no such
          resolution has  been passed,  the  number of  directors named  in  the
          articles.

2.6 CHAIRMAN OF BOARD MEETINGS

     The  chairman of a meeting  of the board must be  a director present at the
meeting who consents to preside as chairman. The first-mentioned of the chairman
of the board or the president who so qualifies shall preside as chairman of  the
meeting.  If none of them is so  qualified, the directors present at the meeting
shall choose a director to preside as chairman of the meeting.

2.7 VOTES AT BOARD MEETINGS

     Each director present at a meeting of the board shall have one vote on each
motion arising. Motions arising at meetings of  the board shall be decided by  a
majority  vote. The chairman of  the meeting shall not  have a second or casting
vote.

2.8 OFFICERS

     Each officer  shall hold  office  during the  pleasure  of the  board.  Any
officer may, however, resign at any time by giving notice to the Corporation.

                                       M-2


                                   ARTICLE 3
                            MEETINGS OF SHAREHOLDERS

3.1 NOTICE OF SHAREHOLDERS' MEETINGS

     The board may call a meeting of shareholders by causing notice of the date,
time and place of the meeting to be sent to each shareholder entitled to vote at
the  meeting, each director and  the auditor. Such notice  shall be sent no less
than 21 days and no more than 50 days before the meeting, if the Corporation  is
an  offering corporation (as defined in the Act), or no less than 10 days and no
more than 50  days before  the meeting  if the  Corporation is  not an  offering
corporation.

3.2 QUORUM AT MEETINGS OF SHAREHOLDERS

     If  the Corporation has only one shareholder  entitled to vote at a meeting
of shareholders,  that  shareholder constitutes  a  quorum. Otherwise,  any  two
voting persons present shall constitute a quorum, but only to appoint a chairman
and  adjourn the meeting. For all other  purposes, a quorum consists of at least
two voting persons present and authorized to cast in the aggregate not less than
20% of the total number of votes  attaching to all shares carrying the right  to
vote at that meeting.

3.3 CHAIRMAN'S VOTE

     The  chairman of  any meeting  of shareholders shall  not have  a second or
casting vote.

3.4 VOTING

     Unless the chairman  of a meeting  of shareholders directs  a ballot, or  a
voting  person demands one, each motion shall be  voted upon by a show of hands.
Each voting person has  one vote in  a vote by  show of hands.  A ballot may  be
directed or demanded either before or after a vote by show of hands. If a ballot
is taken, a prior vote by show of hands has no effect.

3.5 SCRUTINEERS

     The  chairman of a meeting of shareholders may appoint for that meeting one
or more scrutineers, who need not be voting persons.

3.6 WHO MAY ATTEND SHAREHOLDERS' MEETING

     The only persons entitled  to attend a meeting  of shareholders are  voting
persons,  the directors,  the auditor  and, if  any, the  chairman, the managing
director and the President, as well as  others permitted by the chairman of  the
meeting.

3.7 MEETING BY TELEPHONIC OR ELECTRONIC MEANS

     A meeting of the shareholders may be held by telephonic or electronic means
and  a shareholder who, through those means, votes at the meeting or establishes
a communications link to the meeting shall be deemed for the purposes of the Act
to be present at the meeting.

                                   ARTICLE 4
                        SECURITY CERTIFICATES, PAYMENTS

4.1 CERTIFICATES

     Security certificates shall be in such form as the board may approve or the
Corporation adopt. The president or the board may order the cancellation of  any
security  certificate that has become defaced  and the issuance of a replacement
certificate for it when the defaced certificate is delivered to the  Corporation
or to a transfer agent or branch transfer agent of the Corporation.

4.2 CHEQUES AND OTHER FORMS OF PAYMENT

     Any  amount payable in cash to shareholders (including dividends payable in
cash) may be paid by (i) cheque drawn on any of the Corporation's bankers to the
order of each registered holder of shares  of the class or series in respect  of
which  such amount is to be paid, or (ii) in such other manner as is required by
the Corporation's bankers or as required by law. Cheques may be sent by delivery
or  first   class   mail   to   such  registered   holder   at   that   holder's
                                       M-3


address  appearing on the register of shareholders, unless that holder otherwise
directs in writing. By sending a cheque or making payment in such other  manner,
in  each case as provided in this by-law, in the amount of the dividend less any
tax that the Corporation is required to withhold, the Corporation discharges its
liability to pay the amount of that dividend, unless, in the case of payment  by
cheque, the cheque is not paid on due presentation.

4.3 CHEQUES TO JOINT SHAREHOLDERS

     Cheques payable to joint shareholders shall be made payable to the order of
all  such joint  shareholders unless  such joint  shareholders direct otherwise.
Such cheques may be sent to the  joint shareholders at the address appearing  on
the  register of  shareholders in  respect of that  joint holding,  to the first
address so appearing  if there is  more than one,  or to such  other address  as
those joint shareholders direct in writing.

4.4 NON-RECEIPT OF CHEQUES

     The  Corporation shall issue a replacement cheque in the same amount to any
person who does not receive  a cheque sent as provided  in this by-law, if  that
person has satisfied the conditions regarding indemnity, evidence of non-receipt
and  title set  by the  board from time  to time,  either generally  or for that
particular case.

4.5 CURRENCY OF DIVIDENDS

     Dividends or  other distributions  payable  in cash  may  be paid  to  some
shareholders  in  Canadian  currency  and to  other  shareholders  in equivalent
amounts of a currency or currencies other than Canadian currency. The board  may
declare  dividends  or other  distributions in  any  currency or  in alternative
currencies and make  such provisions as  it deems advisable  for the payment  of
such dividends or other distributions.

                                   ARTICLE 5
                            SIGNATORIES, INFORMATION

5.1 SIGNATORIES

     Except  for  documents executed  in the  usual and  ordinary course  of the
Corporation's business, which may  be signed by any  officer or employee of  the
Corporation  acting within the scope of his  or her authority, the following are
the only persons authorized to sign any document on behalf of the Corporation:

     (a)  any individual  appointed  by resolution  of  the board  to  sign  the
          specific  document, that  type of  document or  documents generally on
          behalf of the Corporation; or

     (b)  any two individuals, one of whom shall be the President and the  other
          of  whom shall be any  director or any officer  appointed to office by
          the board.

     Any document so signed may,  but need not, have  the corporate seal of  the
Corporation applied, if there is one.

5.2 FACSIMILE SIGNATURES

     The  signature  of  any individual  authorized  to  sign on  behalf  of the
Corporation may,  if specifically  authorized  by resolution  of the  board,  be
written,  printed,  stamped,  engraved, lithographed  or  otherwise mechanically
reproduced. Anything  so signed  shall be  as valid  as if  it had  been  signed
manually,  even if that  individual has ceased  to hold office  when anything so
signed is issued or delivered, until revoked by resolution of the board.

5.3 RESTRICTION ON INFORMATION DISCLOSED

     Except as required by the Act or authorized by the board, no shareholder is
entitled by virtue  of being  a shareholder  to disclosure  of any  information,
document or records respecting the Corporation or its business.

                                   ARTICLE 6
                            PROTECTION AND INDEMNITY

6.1 TRANSACTIONS WITH THE CORPORATION

     No  director  or  officer  shall  be disqualified,  by  virtue  of  being a
director, or by  holding any  other office  of, or  place of  profit under,  the
Corporation  or any body corporate in which  the Corporation is a shareholder or
is otherwise  interested,  from  entering  into,  or  from  being  concerned  or
interested  in any manner in, any  contract, transaction or arrangement made, or
proposed to be made,  with the Corporation  or any body  corporate in which  the
                                       M-4


Corporation is interested and no such contract, transaction or arrangement shall
be  void or voidable for any such reason. No director or officer shall be liable
to account to the  Corporation for any  profit arising from  any such office  or
place  of profit  or realized  in respect of  any such  contract, transaction or
arrangement. Except as required by the Act, no director or officer must make any
declaration or disclosure  of interest or,  in the case  of a director,  refrain
from voting in respect of any such contract, transaction or arrangement.

6.2 LIMITATION OF LIABILITY

     Subject to the Act, no director or officer shall be liable for:

     (a)  the acts, receipts, neglects or defaults of any other person;

     (b)  joining in any receipt or act for conformity;

     (c)  any  loss,  damage  or expense  to  the Corporation  arising  from the
          insufficiency or deficiency of title to any property acquired by or on
          behalf of the Corporation;

     (d)  the insufficiency or deficiency of any  security in or upon which  any
          moneys of the Corporation are invested;

     (e)  any  loss, damage or expense  arising from the bankruptcy, insolvency,
          act or omission  of any  person with  whom any  monies, securities  or
          other property of the Corporation are lodged or deposited;

     (f)  any  loss, damage  or expense occasioned  by any error  of judgment or
          oversight; or

     (g)  any other  loss,  damage or  expense  related to  the  performance  or
          non-performance of the duties of that individual's office.

6.3 CONTRACTS ON BEHALF OF THE CORPORATION

     Subject  to the Act, any contract entered into, or action taken or omitted,
by or on behalf of  the Corporation shall, if duly  approved by a resolution  of
the shareholders, be deemed for all purposes to have had the prior authorization
of the shareholders.

6.4 INDEMNITY OF DIRECTORS AND OFFICERS

     As  required or permitted by the  Act, the Corporation shall indemnify each
Indemnified Person (as defined in this  section) against all costs, charges  and
expenses,  including an amount paid  to settle an action  or satisfy a judgment,
which that  Indemnified  Person  reasonably  incurs in  respect  of  any  civil,
criminal or administrative action or proceeding to which that Indemnified Person
is  made a party by reason of being or  having been a director or officer of the
Corporation or  of  a body  corporate  of which  the  Corporation is  or  was  a
shareholder or creditor if:

     (a)  the Indemnified Person acted honestly and in good faith with a view to
          the best interests of the Corporation; and

     (b)  in  the case of a criminal or administrative action or proceeding that
          is  enforced  by  a  monetary  penalty,  the  Indemnified  Person  had
          reasonable grounds for believing that the conduct was lawful.

           "INDEMNIFIED PERSON" means

        (i)   each director and former director of the Corporation;

        (ii)  each officer and former officer of the Corporation;

        (iii) each  individual who acts or acted at the Corporation's request as
              a director or officer of a body corporate of which the Corporation
              is or was a shareholder or creditor; and

        (iv) the respective  heirs  and legal  representatives  of each  of  the
             persons designated in the preceding paragraphs (a) through (c).

6.5 INDEMNITIES NOT LIMITING

     The  provisions  of this  Article  6 shall  be in  addition  to and  not in
substitution for any rights, immunities and protections to which an  Indemnified
Person is otherwise entitled.

                                       M-5


                                   ARTICLE 7
                                    NOTICES

7.1 PROCEDURE FOR SENDING NOTICES

     Notice shall be deemed to have been sufficiently sent if sent in writing to
the  address of the addressee  on the books of  the Corporation and delivered in
person, sent by prepaid first class mail or sent by any telephonic or electronic
means of  sending messages,  including telex  or facsimile  transmission,  which
produces  a paper  record. Notice  shall not  be sent  by mail  if there  is any
general interruption of postal services in the municipality in which or to which
it is mailed. Each notice so sent shall  be deemed to have been received on  the
day  it was delivered or sent by telephonic  or electronic means or on the fifth
day after it was mailed.

7.2 NOTICES TO SUCCESSORS IN TITLE

     Notice to a shareholder is sufficient notice to each successor in title  to
that  shareholder until the name and address of that successor have been entered
on the Corporation's share register.

7.3 NOTICE TO JOINT SHAREHOLDERS

     Notice to one joint shareholder is  sufficient notice to all of them.  Such
notice shall be addressed to all such joint shareholders and sent to the address
for  them on the  Corporation's register of  shareholders, or to  the first such
address if there is more than one.

7.4 FACSIMILE SIGNATURES ON NOTICES

     The signature on any notice or  other communication or document to be  sent
by  the Corporation may be written,  printed, stamped, engraved, lithographed or
otherwise mechanically reproduced.

7.5 OMISSION OF NOTICE DOES NOT INVALIDATE ACTIONS

     All actions taken at a meeting in  respect of which a notice has been  sent
shall be valid even if:

     (a)  by accident, notice was not sent to any person;

     (b)  notice was not received by any person; or

     (c)  there  was an error in  a notice that did  not affect the substance of
          that notice.

7.6 WAIVER OF NOTICE

     Any person entitled to  notice under the Act,  the articles or the  by-laws
may  waive that notice. Waiver, either before  or after the event referred to in
the notice, shall cure any default in sending that notice.

                                       M-6


                                   ARTICLE 8
                            REPEAL OF FORMER BY-LAWS

8.1 FORMER BY-LAWS MAY BE REPEALED

     The board may repeal one or more by-laws by passing a by-law that  contains
provisions to that effect.

8.2 REPEAL OF BY-LAWS

     By-law(s) 1 and 2 of the Corporation are repealed.

8.3 EFFECT OF REPEAL OF BY-LAWS

     The  repeal of any by-law in whole or  part shall not in any way affect the
validity of any act done or  right, privilege, obligation or liability  acquired
or  incurred thereunder prior to such  repeal. All directors, officers and other
persons acting under any by-law repealed in whole or part shall continue to  act
as if elected or appointed under the provisions of this by-law.

     MADE by the board on the  -- day of    --   , 2004.

<Table>
                                                     
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President                                               Secretary
</Table>

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