Offer of Purchase and Sale


                                                                     EXHIBIT 2.1







                           OFFER OF PURCHASE AND SALE

                                  by and among

                              STOCKER & YALE, INC.
                                    as Buyer

                                  LASIRIS, INC.
                                   the Company

                                       and

                         The Stockholders of the Company

                     and certain other parties named herein



                                 March 14, 1998






Offer of Purchase and Sale


                           OFFER OF PURCHASE AND SALE

                                      INDEX
                                      -----
                                                                         Page
                                                                         ----

 SECTION 1.   SALE OF SHARES AND PURCHASE PRICE.............................1
         1.1  Offer of Purchase and Sale of Company Stock...................1
         1.2  Offer of Purchase and Sale of SPEQ Stock......................1
         1.3  Purchase Price and Payment....................................2
         1.4  Time and Place of Closing.....................................2
         1.5  SPEQ Stockholders' Representative.............................2
         1.6  Employees.....................................................4
         1.7  Further Assurances............................................4
         1.8  Transfer Taxes................................................4

 SECTION 2.   REPRESENTATIONS AND WARRANTIES OF THE COMPANY 
                AND STOCKHOLDERS............................................4
         2.1  Making of Representations and Warranties......................4
         2.2  Organization and Qualifications of the Company................4
         2.3  Capital Stock of the Company; Beneficial Ownership............5
         2.4  Subsidiaries..................................................6
         2.5  Authority of the Company and the Stockholders.................6
         2.6  No Conflicts..................................................6
         2.7  Real and Personal Property....................................7
         2.8  Financial Statements..........................................9
         2.9  Taxes.........................................................9
         2.10 Collectibility of Accounts Receivable........................10
         2.11 Inventories..................................................11
         2.12 Absence of Certain Changes...................................11
         2.13 Ordinary Course..............................................13
         2.14 Approvals; Consents..........................................13
         2.15 Banking Relations............................................13
         2.16 Intellectual Property........................................13
         2.17 Contracts....................................................15
         2.18 Litigation...................................................17
         2.19 Compliance with Laws.........................................17
         2.20 Insurance....................................................17
         2.21 Powers of Attorney...........................................18
         2.22 Finder's Fee.................................................18
         2.23 Permits; Burdensome Agreements...............................18
         2.24 Corporate Records; Copies of Documents.......................18
         2.25 Transactions with Interested Persons.........................18
         2.26 Employee Benefit Programs....................................18
         2.27 Environmental Matters........................................20
         2.28 List of Directors and Officers...............................21
         2.29 Backlog......................................................21





Offer of Purchase and Sale

                                                                           Page
                                                                           ----

         2.30 Employees; Labor Matters.......................................22
         2.31 Customers, Distributors and Suppliers..........................23
         2.32 Transfer of Shares.............................................23
         2.33 Stock Repurchase...............................................23
         2.34 Hart -Scott Rodino.............................................23

 SECTION 3.   COVENANTS OF THE COMPANY AND THE PRINCIPAL
                 STOCKHOLDERS................................................24
         3.1  Making of Covenants and Agreements.............................24
         3.2  Cooperation....................................................24
         3.3  Consents.......................................................24
         3.4  Notice of Default..............................................24
         3.5  Conduct of Business............................................24
         3.6  Acquisition Proposals..........................................26
         3.7  Transfers of Shares; Voting....................................26
         3.8  Confidentiality................................................27
         3.9  Tax Returns....................................................27
         3.10 Options and Other Rights.......................................27
         3.11 Consummation of Agreement......................................27

 SECTION 4.   REPRESENTATIONS AND WARRANTIES OF BUYER........................27
         4.1  Making of Representations and Warranties.......................27
         4.2  Organization of Buyer..........................................28
         4.3  Authority of Buyer.............................................28
         4.4  Litigation.....................................................28
         4.5  Finder's Fee...................................................28

 SECTION 5.   COVENANTS OF BUYER.............................................29
         5.1  Making of Covenants and Agreements.............................29
         5.2  Formation of Canco.............................................29
         5.3  Execution of Contracts.........................................29
         5.4  Consents.......................................................29
         5.5  Confidentiality................................................30
         5.6  Conduct of Business............................................30

 SECTION 6.   CONDITIONS.....................................................30
         6.1  Conditions to the Obligations of Buyer.........................30
         6.2  Conditions to Obligations of the Company and the Stockholders..33

 SECTION 7.   TERMINATION OF AGREEMENT; RIGHTS TO PROCEED....................35
         7.1  Termination....................................................35
         7.2  Effect of Termination..........................................35

 SECTION 8.   RIGHTS AND OBLIGATIONS SUBSEQUENT TO CLOSING...................36
         8.1  Survival of Warranties.........................................36






Offer of Purchase and Sale

                                                                           Page
                                                                           ----

 SECTION 9.    INDEMNIFICATION...............................................36
         9.1   Indemnification by the Stockholders...........................36
         9.2   Limitations on Indemnification by the Stockholders............37
         9.3   Indemnification by Buyer......................................37
         9.4   Limitation on Indemnification by Buyer........................38
         9.5   Insurance Proceeds............................................38
         9.6   Notice; Defense of Claims.....................................38
         9.7   Satisfaction of Stockholder Indemnification Obligations.......39

 SECTION 10.   MISCELLANEOUS.................................................39
         10.1  Fees and Expenses.............................................39
         10.2  Governing Law.................................................40
         10.3  Notices.......................................................40
         10.4  Entire Agreement..............................................40
         10.5  Assignability; Binding Effect.................................41
         10.6  Captions and Gender...........................................41
         10.7  Execution in Counterparts.....................................41
         10.8  Amendments....................................................41
         10.9  Publicity and Disclosures.....................................41
         10.10 Consent to Jurisdiction.......................................41
         10.11 Specific Performance..........................................41
         10.12 Attorneys' Fees...............................................42
         10.13 No Third-Party Beneficiaries..................................42
         10.14 Further Assurances............................................42
         10.15 Currency......................................................42
         10.16 Preparation of Exhibits.......................................42
         10.17 Language......................................................42






Offer of Purchase and Sale


                         List of Exhibits and Schedules
                         ------------------------------

Exhibit A: List of Stockholders, Stockholdings and Consideration to be Paid

        B:   Lasiris Corporate Reorganization

        C:   Form of Escrow Agreement

        D:   Confidentiality Agreement

        E-1: Form of Canco's Articles of Incorporation

        E-2: Form of Canco's Bylaws

        F:   Form of Opinion of Counsel for the Company and the Stockholders

        G:   Form of Employment Agreements

        H-1: Form of General Release to be executed by each of the Stockholders

        H-2: Form of General Release to be executed by each of the SPEQ 
             Stockholders

        I:   Stockholders' Agreement

        J:   Support Agreement

        K:   Opinion of Counsel for Buyer

Schedule 2.3(a)    Company Voting Agreements, etc.
         2.3(b)    SPEQ Voting Agreements, etc.
         2.6       Conflicts of Company, SPEQ and the Stockholders
         2.7(a)    Real Property
         2.7(b)    Personal Property
         2.8       Financial Statements
         2.9       Tax Disclosures
         2.10      Accounts Receivable
         2.11      Inventories
         2.12      Absence of Changes
         2.14      Consents
         2.15      Banking Arrangements
         2.16      Intellectual Property
         2.17      Contracts, etc.
         2.18      Litigation
         2.19      Compliance with Laws
         2.20      Insurance
         2.23      Permits, Burdensome Agreements
         2.25      Transactions with Interested Persons
         2.26      Employee Benefit Programs
         2.27      Environmental Matters
         2.28(a)   Officers and Directors
         2.29      Backlog
         2.30      Labor Matters





Offer of Purchase and Sale


         2.31      Customers, Distributors and Suppliers
         3.3       Consents
         3.12      Modifications to Employment Terms
         4.4       Litigation of Buyer
         4.7       Conflicts of Buyer
         6.1(n)    Directors and Officers






Offer of Purchase and Sale


                           OFFER OF PURCHASE AND SALE

     THIS OFFER OF PURCHASE AND SALE (the "Agreement") is made and entered into
as of March 14, 1998 by and among Stocker & Yale, Inc. (the "Buyer"), a
Massachusetts corporation; Lasiris, Inc., a Canadian corporation (together with
its subsidiaries, if any, the "Company"); Mr. Alain Beauregard ("Beauregard"),
Mr. Luc Many ("Many") (Beauregard and Many are referred to herein, collectively
as the "Principal Stockholders" and individually as a "Principal Stockholder");
and the holders of the capital stock of 2620-1483 Quebec Inc. ("SPEQ") listed on
Exhibit A attached hereto (the "SPEQ Stockholders") (the Principal Stockholders
and the SPEQ Stockholders are referred to herein, collectively, as the
"Stockholders" and individually as a "Stockholder").

                               W I T N E S S E T H
                               -------------------

     WHEREAS, Buyer desires to purchase all of the issued and outstanding shares
of the capital stock of the Company;

     WHEREAS, Beauregard, Many and SPEQ own all of the issued and outstanding
shares of the capital stock of the Company as set forth on Exhibit A attached
hereto;

     WHEREAS, the parties agree to fully implement, prior to the Closing Date,
the corporate reorganization of the Company substantially as proposed by
Gaignard & Associes, and described in Exhibit B attached hereto (the "Lasiris
Corporate Reorganization");

     WHEREAS, following the execution and delivery of this offer, Buyer shall
form a wholly-owned Canadian subsidiary ("Canco") and Buyer shall cause Canco to
purchase the shares of the Company and the shares of SPEQ in accordance with the
terms of the present offer and the Lasiris Corporate Reorganization.

     NOW, THEREFORE, in consideration of the mutual covenants, promises,
representations and warranties herein contained, the parties hereto agree as
follows:

SECTION 1. SALE OF SHARES AND PURCHASE PRICE.
- ---------------------------------------------

     1.1 Offer of Purchase and Sale of Company Stock. Upon the terms and subject
to the conditions set forth below, Buyer hereby offers to purchase from
Beauregard and Many, and each of Beauregard and Many agrees to sell, assign and
transfer to Buyer, on the Closing Date, all of the shares of the capital stock
of the Company (the "Company Stock") owned by them or in any holding corporation
newly formed by them to own shares in the Company, all in accordance with the
terms of this Agreement and the Lasiris Corporate Reorganization, free and clear
of any and all liens, encumbrances or adverse interests of any kind.

     1.2 Offer of Purchase and Sale of SPEQ Stock. Upon the terms and subject to
the conditions set forth below, Buyer hereby offers to purchase from the SPEQ
Stockholders all of the issued and outstanding shares of the capital stock of
SPEQ (the "SPEQ Stock") and each SPEQ Stockholder hereby agrees to sell, assign
and transfer to Buyer, at the Closing Date, all





Offer of Purchase and Sale


of the shares of SPEQ Stock, in accordance with the terms of this Agreement and
the Lasiris Corporate Reorganization, free and clear of any and all liens,
encumbrances or adverse interests of any kind.

     1.3 Purchase Price and Payment. The aggregate purchase price payable to the
Principal Stockholders and the SPEQ Stockholders as consideration for the
Company Stock and the SPEQ Stock will be comprised of the following:

     (a)  $4,620,000.00 (CDN) in cash at the Closing; and

     (b)  shares of the capital stock of Canco which shall be exchangeable (the
          "Exchangeable Shares") for an equal number of shares of Buyer's common
          stock, par value $0.001 per share (the "Buyer Stock"), having an
          aggregate fair market value of $3,080,000 (CDN) on the Closing Date
          (as defined below), based upon a per share fair market value of $4.875
          (U.S.).

     (c)  The consideration payable to each Principal Stockholder and each SPEQ
          Stockholder is set forth on Exhibit A attached hereto.

     (d)  Notwithstanding the foregoing, in order to secure the obligations of
          each Principal Stockholder and each of the SPEQ Stockholders pursuant
          to Section 9 hereof, that number of Exchangeable Shares exchangeable
          for Buyer Stock having a value of $250,000(CDN) (based upon a price
          per share for Buyer Stock of $4.875 (U.S.)) otherwise to be delivered
          to the Principal Stockholders or the SPEQ Stockholders hereunder shall
          be delivered to the escrow agent (the "Escrow Agent") pursuant to that
          certain Escrow Agreement by and among each of the Stockholders, Buyer,
          Canco and the Escrow Agent, substantially in the form of Exhibit C
          attached hereto.

     1.4 Time and Place of Closing. The closing of the purchase and sale
provided for in this Agreement (herein called the "Closing") shall be held at
the offices of Goodwin, Procter & Hoar LLP at Exchange Place, 53 State Street,
Boston, Massachusetts on March 31, 1998 or at such other place or other date or
time as may be mutually agreed upon by the parties; provided that, each party
shall have the right by the delivery of written notice to the other parties to
postpone the Closing for a period of not more than sixty (60) days after the
delivery of such written notice; provided, however, that the Closing shall not
be postponed to a date later than May 29, 1998 without the written consent of
Buyer and the holders of a majority-in-interest of the Company Stock. The date
on which the Closing occurs is sometimes referred to herein as the "Closing
Date."

     1.5 SPEQ Stockholders' Representative.

          (a) In order to administer efficiently (i) the implementation of the
Agreement by the SPEQ Stockholders, (ii) the waiver of any condition to the
obligations of the SPEQ Stockholders to consummate the transactions contemplated
hereby, and (iii) the settlement of



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Offer of Purchase and Sale


any dispute with respect to the Agreement, the SPEQ Stockholders hereby
designate Vincent Gauthier and Paul-Benoit Tremblay, and each of them acting
individually, as their representative (each a "SPEQ Stockholders'
Representative").

          (b) The SPEQ Stockholders hereby authorize each SPEQ Stockholders'
Representative (i) to take all action necessary in connection with the
implementation of the Agreement on behalf of the SPEQ Stockholders, the waiver
of any condition to the obligations of the SPEQ Stockholders to consummate the
transactions contemplated hereby, or the settlement of any dispute, (ii) to give
and receive all notices required to be given under the Agreement and (iii) to
take any and all additional action as is contemplated to be taken by or on
behalf of the SPEQ Stockholders by the terms of this Agreement, including
without limitation, the execution and delivery of documents to transfer the SPEQ
Stock to Buyer.

          (c) In the event that either SPEQ Stockholders' Representative dies,
becomes legally incapacitated or resigns from such position, Denis St. Hilaire
shall fill such vacancy and shall be deemed to be a SPEQ Stockholders'
Representative for all purposes of this Agreement; however, no change in any
SPEQ Stockholders' Representative shall be effective until Buyer is given notice
of it by the Stockholders.

          (d) All decisions and actions by any SPEQ Stockholders' Representative
shall be binding upon all of the SPEQ Stockholders, and no SPEQ Stockholder
shall have the right to object, dissent, protest or otherwise contest the same.

          (e) By their execution of this Agreement, the SPEQ Stockholders agree
that:

               (i) Buyer shall be able to rely conclusively on the instructions
          and decisions of any SPEQ Stockholders' Representative as to any
          actions required or permitted to be taken by the SPEQ Stockholders or
          any SPEQ Stockholders' Representative hereunder, and no party
          hereunder shall have any cause of action against Buyer for any action
          taken by Buyer in reliance upon the instructions or decisions of any
          SPEQ Stockholders' Representative;

               (ii) all actions, decisions and instructions of any SPEQ
          Stockholders' Representative shall be conclusive and binding upon all
          of the SPEQ Stockholders and no SPEQ Stockholder shall have any cause
          of action against any SPEQ Stockholders' Representative for any action
          taken, decision made or instruction given by any SPEQ Stockholders'
          Representative under this Agreement, except for fraud or willful
          breach of this Agreement by any SPEQ Stockholders' Representative;

               (iii) remedies available at law for any breach of the provisions
          of this Section 1.5 are inadequate; therefore, Buyer shall be entitled
          to temporary and permanent injunctive relief without the necessity of
          proving damages if Buyer brings an action to enforce the provisions of
          this Section 1.5; and



                                       3



Offer of Purchase and Sale


               (iv) the provisions of this Section 1.5 are independent and
          severable, shall constitute an irrevocable power of attorney, coupled
          with an interest and surviving death, granted by the SPEQ Stockholders
          to each SPEQ Stockholders' Representative and shall be binding upon
          the executors, heirs, legal representatives and successors of each
          SPEQ Stockholder.

          (f) All fees and expenses incurred by any SPEQ Stockholders
Representative shall be paid by the SPEQ Stockholders.

     1.6 Employees. On the Closing Date Buyer will continue to employ all
employees employed by the Company as of the date hereof except for any such
employee whose employment by Lasiris is terminated prior to the Closing Date.

     1.7 Further Assurances. The Stockholders from time to time after the
Closing at the request of Buyer and without further consideration shall execute
and deliver further instruments of transfer and assignment and take such other
action as Buyer may reasonably require to more effectively transfer and assign
to, and vest in, Buyer the Company Stock and all rights thereto, and to fully
implement the provisions of this Agreement.

     1.8 Transfer Taxes. All transfer taxes, fees and duties under applicable
Canadian law incurred in connection with the sale and transfer of the Company
Stock under this Agreement will be borne and paid by the Stockholders, and the
Stockholders shall promptly reimburse the Company and Buyer for any such tax,
fee or duty which any of them is required to pay under applicable Canadian law.

SECTION 2. REPRESENTATIONS AND WARRANTIES OF THE COMPANY AND STOCKHOLDERS.
- --------------------------------------------------------------------------

     2.1 Making of Representations and Warranties. As a material inducement to
Buyer to enter into this Agreement and consummate the transactions contemplated
hereby, the Company and each of the Stockholders, jointly but not solidary,
hereby make to Buyer the representations and warranties relating or with respect
to the Company contained in this Section 2. Each of the SPEQ Stockholders,
jointly but not solidary, hereby make to Buyer the representations and
warranties relating or with respect to SPEQ contained in this Section 2 and each
Stockholder, jointly but not solidary, hereby makes to Buyer the representations
and warranties set forth in Section 2.3(c) and 2.5. For the purposes of this
Agreement, the disclosure of any fact or matter on any Schedule referred to
herein shall be deemed a disclosure on each and every Schedule referred to
herein to the extent that such disclosure properly could have been made therein
but was not so made.

     2.2 Organization and Qualifications of the Company.

          (a) The Company is a corporation duly organized, validly existing and
in good standing under the Canada Business Corporations Act ("CBCA") and the
laws of the Province of Quebec applicable to the Company relating to its
organization and has full


                                       4



Offer of Purchase and Sale


corporate power and authority to own or lease its properties and to conduct its
business in the manner and in the places where such properties are owned or
leased or such business is currently conducted. The copies of the Company's
Certificate and Articles of Incorporation as amended to date, certified by the
Director under the CBCA, and of the Company's by-laws, as amended to date,
certified by the Company's Secretary, and heretofore delivered to Buyer's
counsel, are complete and correct, and no amendments thereto are pending. The
Company is not in violation of any term of its Certificate and Articles of
Incorporation or By-laws. The Company is qualified to do business as a foreign
corporation in all jurisdictions in which the nature of the business conducted
by the Company or the characters of the assets owned or leased by it make such
qualification necessary except for those jurisdictions wherein a failure to be
so qualified would not have a material adverse effect on the condition
(financial or otherwise), properties, assets, liabilities, business, operations
or prospects (a "Material Adverse Effect") of the Company.

          (b) SPEQ is a corporation duly organized, validly existing and in good
standing under Part 1A of the Quebec Corporations Act and has full corporate
power and authority to own or lease its properties and to conduct its business
in the manner and in the places where such properties are owned or leased or
such business is currently conducted. The copies of SPEQ's Certificate and
Articles of Incorporation as amended to date, certified by the Director under
Part 1A of the Quebec Corporations Act, and of SPEQ's by-laws, as amended to
date, certified by the SPEQ's Secretary, and heretofore delivered to Buyer's
counsel, are complete and correct, and no amendments thereto are pending. SPEQ
is not in violation of any term of its Certificate and Articles of Incorporation
or By-laws. SPEQ does not currently conduct business in any foreign
jurisdiction.

     2.3 Capital Stock of the Company; Beneficial Ownership.

          (a) The authorized capital stock of the Company consists of (i) an
unlimited number of Class A Common Shares of which 161,670 shares are duly and
validly issued, outstanding, fully paid and non-assessable, (ii) an unlimited
number of Class B Preferred Shares of which no shares are issued or outstanding
and (iii) an unlimited number of Class C Preferred Shares of which no shares are
issued or outstanding. Except as set forth on Schedule 2.3(a), there are no
outstanding options, warrants, rights, commitments, preemptive rights or
agreements of any kind for the issuance or sale of, or outstanding securities
convertible into, exchangeable for or carrying the right to acquire, any
additional shares of capital stock of any class of the Company or which may
otherwise implicate any rights of any present or former Company Stockholder or
holder of any other security convertible into or exercisable or exchangeable for
or conveying the right to acquire Company Stock. None of the Company's capital
stock has been issued in violation of any applicable law. Except as set forth in
Schedule 2.3(a), there are no voting trusts, voting agreements, proxies or other
agreements, instruments or undertakings with respect to the voting of the
Company Stock to which the Company or any of the Stockholders is a party.

          (b) The authorized capital stock of SPEQ consists of (i) an unlimited
number of Common Shares, of which 180,937 shares are duly and validly issued,
outstanding, fully paid

                                       5



Offer of Purchase and Sale


and non-assessable. There are no outstanding options, warrants, rights,
commitments, preemptive rights or agreements of any kind for the issuance or
sale of, or outstanding securities convertible into, exchangeable for or
carrying the right to acquire, any additional shares of capital stock of any
class of SPEQ or which may otherwise implicate any rights of any present or
former SPEQ Stockholder or holder of any other security convertible into or
exercisable or exchangeable for or conveying the right to acquire SPEQ Stock.
None of SPEQ's capital stock has been issued in violation of any applicable law.
Except as set forth in the Schedule 2.3(b), there are no voting trusts, voting
agreements, proxies or other agreements, instruments or undertakings with
respect to the voting of the SPEQ Stock to which SPEQ or any of the SPEQ
Stockholders is a party.

          (c) Each of the Stockholders owns beneficially and of record the
Company Stock and/or the SPEQ Stock set forth opposite such Stockholder's name
on Exhibit A attached hereto free and clear of any liens, hypothecation,
security interests, restrictions or encumbrances of any kind or nature
(collectively, "Liens").

     2.4 Subsidiaries.

          (a) Neither the Company nor SPEQ has any subsidiaries or investments
in any other corporation, limited liability company, partnership or business
organization.

          (b) Neither the Company nor SPEQ has any rights or options (the
"Acquisition Rights") to purchase or acquire the capital stock or all or
substantially all of the assets of any other corporation or business
organization (an "Acquisition").


     2.5 Authority of the Company and the Stockholders.

          (a) The Company has full right, authority and corporate power, and
each Principal Stockholder has full right, power, authority and capacity, to
enter into this Agreement and each agreement, document and instrument to be
executed and delivered by the Company or any Principal Stockholder pursuant to
this Agreement and to carry out the transactions contemplated hereby and
thereby. The execution, delivery and performance by the Company and each
Principal Stockholder of this Agreement and each such other agreement, document
and instrument have been duly authorized by all necessary action of the Company
and the Stockholders and no other action on the part of the Company or any
Stockholder is required in connection therewith.

          (b) SPEQ has full right, authority and corporate power, and each SPEQ
Stockholder has full right, power, authority and capacity, to enter into this
Agreement and each agreement, document and instrument to be executed and
delivered by SPEQ or any SPEQ Stockholder pursuant to this Agreement and to
carry out the transactions contemplated hereby and thereby. The execution,
delivery and performance by SPEQ and each SPEQ Stockholder of this Agreement and
each such other agreement, document and instrument have been duly


                                       6



Offer of Purchase and Sale


authorized by all necessary action of SPEQ and/or such SPEQ Stockholder and no
other action on the part of SPEQ or any SPEQ Stockholder is required in
connection therewith.

     2.6 No Conflicts. This Agreement and each agreement, document and
instrument executed and delivered by the Company, SPEQ and/or any Stockholder
pursuant to this Agreement constitutes, or when executed and delivered will
constitute, valid and binding obligations of the Company, SPEQ and/or such
Stockholder enforceable in accordance with their terms. The execution, delivery
and performance by the Company or SPEQ of this Agreement and each other
agreement, document or instrument to be executed, delivered or performed in
accordance with the terms of this Agreement (the "Transaction Documents") by the
Company, SPEQ or any Stockholder with or without the giving of notice or the
lapse of time or both, (i) does not and will not violate any provision of the
Certificate and Articles of Incorporation or Bylaws of the Company or SPEQ; (ii)
to the knowledge of the Company or SPEQ does not and will not violate any laws
of Canada, or any territory, province or other jurisdiction applicable to the
Company, SPEQ or any Stockholder or require the Company, SPEQ or any Stockholder
to obtain any approval, consent or waiver of, or make any filing with, any
person or entity (governmental or otherwise) that has not been obtained or made;
and (iii) does not and will not result in a breach of, constitute a default
under, accelerate any obligation under, or give rise to a right of termination
of any indenture or loan or credit agreement or any other agreement, contract,
instrument, mortgage, lien, lease, permit, authorization, order, writ, judgment,
injunction, decree, determination or arbitration award to which the Company,
SPEQ or any Stockholder is a party or by which the property of the Company, SPEQ
or any Stockholder is bound or affected, or result in the creation or imposition
of any mortgage, hypothecation, pledge, lien, security interest or other charge
or encumbrance on any of the Company's assets, the Company Stock, SPEQ's assets
or the SPEQ Stock which, individually or in the aggregate, could have a Material
Adverse Effect on either the Company or SPEQ, except as specifically identified
on Schedule 2.6.

     2.7 Real and Personal Property.

          (a) Real Property. The Company does not own any real property. All of
the real property leased by the Company is identified on Schedule 2.7(a) (herein
referred to as the "Leased Real Property").

               (i) Status of Leases. All leases of Leased Real Property are
          identified on Schedule 2.7(a), and true and complete copies thereof
          have been delivered to Buyer. Each of said leases has been duly
          authorized and executed by the Company and to the knowledge of the
          Company, by the other party to such lease, and each such lease is in
          full force and effect. The Company is not in default under any of said
          leases, nor has any event occurred which, with notice or the passage
          of time, or both, would give rise to such a default. To the Company's
          knowledge, the other party to each of said leases is not in default
          under any of said leases and there is no event which, with notice or
          the passage of time, or both, would give rise to such a default.



                                       7



Offer of Purchase and Sale


               (ii) Consents. Except as set forth in Schedule 2.7(a), no consent
          or approval is required with respect to the transactions contemplated
          by this Agreement from the other parties to any lease of Leased Real
          Property, or from any regulatory authority, no filing with any
          regulatory authority is required in connection therewith, and to the
          extent that any such consents, approvals or filings are required, the
          Company or the Stockholders will obtain or complete them before the
          Closing.

               (iii) Condition of Real Property. Except as set forth in Schedule
          2.7(a), the Company has not received any written or verbal notice that
          there are any defects in the physical condition of any land, buildings
          or improvements constituting part of the Leased Real Property,
          including without limitation, structural elements, mechanical systems,
          parking and loading areas which, individually or in the aggregate,
          could have a Material Adverse Effect, or that the Leased Real Property
          is not free from infestation by rodents or insects. To the knowledge
          of the Company, access to the Leased Real Property and, all water,
          sewer, gas, electric, telephone, drainage and other utilities required
          by law or necessary for the current or planned operation of the
          Company at the Leased Real Property are sufficient to service the
          anticipated needs of the Company.

               (iv) Compliance with the Law. Except as set forth on Schedule
          2.7(a), the Company has not received any written notice from any
          governmental authority of any violation of any law, ordinance,
          regulation, license, permit or authorization issued with respect to
          any Leased Real Property that has not been heretofore corrected and to
          the knowledge of the Company no such violation exists at the Leased
          Real Property which, individually or in the aggregate, could have a
          Material Adverse Effect. No approval or consent to the transactions
          contemplated by this Agreement is required of any governmental
          authority with jurisdiction over any aspect of the Leased Real
          Property or its use or operations. The Company has not received any
          written notice of any real estate tax deficiency or assessment with
          respect to any of the Leased Real Property, or any pending or
          threatened condemnation thereof.

          (b) Personal Property. A complete list of each item of machinery or
equipment of the Company which individually has a value in excess of $2,000
(CDN) is contained in Schedule 2.7(b). Except as specifically disclosed in said
Schedule or in the Base Balance Sheet (as hereinafter defined), the Company has
good and marketable title to all of its personal property. None of such personal
property or assets is subject to any mortgage, hypothecation, pledge, lien,
conditional sale agreement, security title, encumbrance or other charge except
as specifically disclosed in said Schedule or in the Base Balance Sheet. The
Base Balance Sheet reflects all personal property of the Company. Except as
otherwise specified in Schedule 2.7(b), all leasehold improvements, furnishings,
machinery and equipment of the Company are in good repair (ordinary wear and
tear excepted), have been well maintained, and substantially comply with all
applicable laws, ordinances and regulations, and such machinery and equipment is
in good working order. Neither the Company nor any of the Stockholders knows of
any pending or threatened change of any such law, ordinance or regulation which
could have a Material Adverse Effect.


                                       8



Offer of Purchase and Sale


          (c) Except as set forth in Schedule 2.7(c), SPEQ does not own and has
never owned any property (whether real property or personal property) except for
the shares of Company Stock identified on Exhibit A attached hereto. SPEQ does
not lease any real property or personal property.

     2.8 Financial Statements.

          (a) The Company has delivered to Buyer audited balance sheets of the
Company and for its fiscal years ended January 31, 1995, January 31, 1996 and
January 31, 1997 and statements of income, retained earnings and cash flows for
the three years then ended, of which the statements are certified by Coopers &
Lybrand, independent chartered accountants (such financial statements, the
"Audited Financial Statements"). The Company's audited balance sheet as of
January 31, 1997 is sometimes referred to herein as the "Base Balance Sheet"),
copies of which are attached hereto as Schedule 2.8. Said Audited Financial
Statements have been prepared in accordance with generally accepted accounting
principles (as in effect in Canada) applied consistently during the periods
covered thereby, are complete and correct in all material respects and present
fairly in all material respects the financial condition of the Company at the
dates of said statements and the results of its operations for the periods
covered thereby.

          (b) Except as set forth on Schedule 2.8(b), as of the date hereof and
as of the Closing, the Company has not had and will not have any liabilities of
any nature, whether accrued, absolute, contingent or otherwise, asserted or
unasserted, known or unknown (including without limitation, liabilities as
guarantor or otherwise with respect to obligations of others, or liabilities for
taxes due or then accrued or to become due or contingent or potential
liabilities relating to activities of the Company or the conduct of its business
prior to the date hereof or the Closing regardless of whether claims in respect
thereof had been asserted as of such date), except liabilities (i) stated or
adequately reserved against on the Base Balance Sheet or in the notes thereto,
(ii) reflected in Schedules furnished to Buyer hereunder on the date hereof, or
(iii) incurred after the date hereof in the ordinary course of business of the
Company consistent with the terms of this Agreement.

          (c) As of the date hereof and as of the Closing, SPEQ does not have
and will not have any liabilities any liabilities of any nature, whether
accrued, absolute, contingent or otherwise, asserted or unasserted, known or
unknown (including without limitation, liabilities as guarantor or otherwise
with respect to obligations of others, or liabilities for taxes due or then
accrued or to become due or contingent or potential liabilities relating to
activities of SPEQ or the conduct of its business prior to the date hereof or
the Closing regardless of whether claims in respect thereof had been asserted as
of such date).

     2.9 Taxes.

          (a) Each of the Company and SPEQ has paid or caused to be paid all
federal, territorial, provincial, state, local, foreign, and other taxes,
including without limitation, income taxes, estimated taxes, alternative minimum
taxes, excise taxes, sales taxes,



                                       9


Offer of Purchase and Sale


use taxes, goods and services taxes including value-added taxes, gross receipts
taxes, franchise taxes, capital stock taxes, employment and payroll-related
taxes, withholding taxes, stamp taxes, transfer taxes, windfall profit taxes,
environmental taxes, municipal taxes, school taxes and property taxes, whether
or not measured in whole or in part by net income, and all deficiencies, or
other additions to tax, interest, fines and penalties owed by it (collectively,
"Taxes"), required to be paid by it through the date hereof whether disputed or
not.

          (b) Each of the Company and SPEQ has in accordance with applicable law
filed all federal, territorial, provincial, state, local and foreign tax returns
required to be filed by them through the date hereof, and all such returns
correctly and accurately set forth the amount of any Taxes relating to the
applicable period. A list of all federal, territorial, provincial, state, local
and foreign income tax returns filed with respect to the Company and SPEQ for
taxable periods ended on or after December 31, 1992 is set forth in Schedule
2.9, and said Schedule indicates those returns that have been audited or
currently are the subject of an audit. For each taxable period of the Company
ended on or after December 31, 1990, each of the Company and SPEQ has delivered
to Buyer correct and complete copies of all federal, territorial, provincial,
state, local and foreign income tax returns, examination reports and statements
of deficiencies assessed against or agreed to by the Company and SPEQ.

          (c) No Canadian governmental authority is now asserting or, to the
knowledge of the Company, SPEQ or any Stockholder, threatening to assert against
the Company or SPEQ any deficiency or claim for additional Taxes. No claim has
ever been made by an authority in a jurisdiction where the Company and SPEQ do
not file reports and returns that the Company and SPEQ are or may be subject to
taxation by that jurisdiction. There are no security interests on any of the
assets of the Company or SPEQ that arose in connection with any failure (or
alleged failure) to pay any Taxes.

          (d) Except as set forth in Schedule 2.9, there has not been any audit
of any tax return filed by the Company or SPEQ, no such audit is in progress,
and neither the Company nor SPEQ has been notified by any tax authority that any
such audit is contemplated or pending. Except as set forth in Schedule 2.9, no
extension of time with respect to any date on which a tax return was or is to be
filed by the Company or SPEQ is in force, and no waiver or agreement by the
Company or SPEQ is in force for the extension of time for the assessment or
payment of any Taxes.

          (e) Except as set forth in Schedule 2.9, neither the Company nor SPEQ
has ever filed, nor has ever been required to file, a consolidated, combined or
unitary tax return with any other entity. Except as set forth in Schedule 2.9,
neither the Company nor SPEQ owns and has never owned a direct or indirect
interest in any trust, partnership, corporation or other entity. Except as set
forth in Schedule 2.9, neither the Company nor SPEQ is a party to any tax
sharing agreement.



                                       10



Offer of Purchase and Sale


     2.10 Collectibility of Accounts Receivable.

          (a) All of the accounts receivable of the Company existing as of
February 28, 1998 are shown on Schedule 2.10 and the accounts receivable of the
Company as of the last day of the month immediately prior to the month in which
the closing occurs as reflected on a statement of accounts receivable to Buyer
not less than three (3) days prior to Closing and all such accounts receivable
(less the reserve for bad debts set forth on the Audited Financial Statements or
as disclosed on Schedule 2.10) are or will be at the Closing valid and
enforceable claims, fully collectible and subject to no setoff or counterclaim.
The Company does not have accounts or loans receivable from any person, firm or
corporation which is affiliated with the Company or from any director, officer
or employee of the Company, except as disclosed on Schedule 2.10, and all
accounts and loans receivable from any such person, firm or corporation shall be
paid in cash prior to the Closing.

          (b) SPEQ does not have and has never had any accounts receivable.

     2.11 Inventories.

          (a) Except as disclosed in Schedule 2.11, all items in the inventories
of the Company shown on the Base Balance Sheet or existing at the date hereof
are of a quality and quantity saleable in the ordinary course of business of the
Company at profit margins consistent with their experience during the fiscal
year ended January 31, 1997. Except as disclosed in Schedule 2.11, said
inventories reflect write-downs to realizable values in the case of items which
are below standard quality or have become obsolete or unsaleable (except at
prices less than cost) through regular distribution channels in the ordinary
course of the business of the Company. No such write-downs since January 1, 1994
have had a Material Adverse Effect on the financial condition or results of
operations of the Company. The values of the inventories stated in the Base
Balance Sheet and any subsequent financial statements of the Company reflect the
normal inventory valuation policies of the Company were determined at the lower
of cost or market in accordance with generally accepted accounting principles
(as in effect in Canada), practices and methods consistently applied. Purchase
commitments for raw materials and parts are not in excess of normal requirements
and none are at prices materially in excess of current market prices. Except as
disclosed on Schedule 2.11, all inventory items are located on the Leased Real
Property. Since the date of the Base Balance Sheet, no inventory items have been
sold or disposed of except through sales in the ordinary course of business at
profit margins consistent with the experience of the Company during the fiscal
year ended January 31, 1997 and all sales commitments for the products of the
Company are at prices not less than inventory values plus selling expenses and
said profit margins.

          (b) SPEQ does not have and has never had any items in inventory.

     2.12 Absence of Certain Changes.

          (a) Except as disclosed in Schedule 2.12, since January 31, 1997 there
has not been:


                                       11



Offer of Purchase and Sale


               (i) Any change in the condition (financial or otherwise),
          properties, assets, liabilities, business, operations or prospects of
          the Company, which change by itself or in conjunction with all other
          such changes, whether or not arising in the ordinary course of
          business, could have a Material Adverse Effect;

               (ii) Any amendment or termination, or to the knowledge of the
          Company, proposed or threatened amendment or termination, whether
          written or oral, of any Contract (as defined in Section 2.17) or
          material lease;

               (iii) Any contingent liability incurred by the Company as
          guarantor or otherwise with respect to the obligations of others or
          any cancellation of any material debt or claim owing to, or waiver of
          any material right of, the Company;

               (iv) Any mortgage, encumbrance, hypothecation or lien placed on
          any of the properties of the Company which remains in existence on the
          date hereof or will remain on the Closing Date;

               (v) Any cancellation of any material debt or claim owing to, or
          waiver of a material right of, the Company;

               (vi) Any obligation or liability of any nature, whether accrued,
          absolute, contingent or otherwise, asserted or unasserted, known or
          unknown (including without limitation liabilities for Taxes due or to
          become due or contingent or potential liabilities relating to products
          or services provided by the Company or the conduct of the business of
          the Company since the date of the Base Balance Sheet regardless of
          whether claims in respect thereof have been asserted), incurred by the
          Company other than obligations and liabilities incurred in the
          ordinary course of business consistent with the terms of this
          Agreement (it being understood that product or service liability
          claims shall not be deemed to be incurred in the ordinary course of
          business);

               (vii) Any purchase, sale or other disposition, or any agreement
          or other arrangement for the purchase, sale or other disposition, of
          any of the properties or assets of the Company other than in the
          ordinary course of business;

               (viii) Any damage, destruction or loss, whether or not covered by
          insurance, materially and adversely affecting the properties, assets
          or business of the Company;

               (ix) Any declaration, setting aside or payment of any dividend by
          the Company, or the making of any other distribution in respect of the
          capital stock of the Company, or any direct or indirect redemption,
          purchase or other acquisition by the Company of its own capital stock;



                                       12



Offer of Purchase and Sale


               (x) Any labor trouble or claim of unfair labor practices
          involving the Company; any change in the compensation payable or to
          become payable by the Company to any of its officers, employees,
          agents or independent contractors other than normal merit increases in
          accordance with its usual practices; or any bonus payment or
          arrangement made to or with any of such officers, employees, agents or
          independent contractors;

               (xi) Any change with respect to the officers or management of the
          Company;

               (xii) Any payment or discharge of a material lien or liability of
          the Company which was not shown on the Base Balance Sheet or incurred
          in the ordinary course of business thereafter;

               (xiii) Any obligation or liability incurred by the Company to any
          of its officers, directors, stockholders or employees, or any loans or
          advances made by the Company to any of its officers, directors,
          stockholders or employees, except normal compensation and expense
          allowances payable to officers or employees;

               (xiv) Any change in accounting methods or practices, credit
          practices or collection policies used by the Company;

               (xv) Any other transaction entered into by the Company other than
          transactions in the ordinary course of business; or

               (xvi) Any agreement or understanding whether in writing or
          otherwise, for the Company to take any of the actions specified in
          paragraphs (i) through (xv) above.

          (b) As of the Closing, SPEQ will not conduct any operations or
business of any type or nature and will not have any liability or obligation of
any type or nature.

     2.13 Ordinary Course. Since January 31, 1997, each of the Company and SPEQ
has conducted its business only in the ordinary course and consistently with its
prior practices.

     2.14 Approvals; Consents. Except as set forth on Schedule 2.14, no
approval, consent, authorization or exemption from or filing with any person or
entity not a party to this Agreement is required to be obtained or made by
either the Company or SPEQ in connection with the execution and delivery of this
Agreement and the Transaction Documents or the consummation of the transactions
contemplated hereby and thereby.

     2.15 Banking Relations. All of the arrangements which each of the Company
and SPEQ has with any banking institution are completely and accurately
described in Schedule 2.15, indicating with respect to each of such arrangements
the type of arrangement maintained



                                       13


Offer of Purchase and Sale


(such as checking account, borrowing arrangements, safe deposit box, etc.) and
the person or persons authorized in respect thereof.

     2.16 Intellectual Property.

          (a) Except as described in Schedule 2.16, the Company has exclusive
ownership of, or exclusive license to use, all patent, copyright, trade secret,
trademark, or other proprietary rights (collectively, "Intellectual Property")
used or to be used in the business of the Company as presently conducted or
contemplated. Except as described in Schedule 2.16, all of the rights of the
Company in such Intellectual Property are freely transferable. Except as
described in Schedule 2.16, there are no claims or demands of any other person
pertaining to any of such Intellectual Property and no proceedings have been
instituted, or are pending or threatened, which challenge the rights of the
Company in respect thereof. The Company has the right to use, free and clear of
claims or rights of other persons, all such Intellectual Property including,
without limitation, customer lists, designs, manufacturing or other processes,
computer software, systems, data compilations, research results and other
information required for or incident to its products or its business as
presently conducted or contemplated.

          (b) All patents, patent applications, trademarks, trademark
applications and registrations and copyrights, registered copyrights or
applications for registered copyrights which are owned by or licensed to the
Company or used or to be used by the Company in its business as presently
conducted or contemplated, and all other items of Intellectual Property which
are material to the business or operations of the Company, are listed in
Schedule 2.16. Except as disclosed on Schedule 2.16, to the knowledge of the
Company, all of such patents, patent applications, trademark registrations,
trademark applications and registered copyrights have been duly registered in,
filed in or issued by the United States Patent and Trademark Office, the United
States Register of Copyrights, or the corresponding offices of other
jurisdictions including Canada as identified on said Schedule, and have been
properly maintained and renewed in accordance with all applicable provisions of
law and administrative regulations of the United States and each such
jurisdiction.

          (c) All licenses or other agreements under which the Company is
granted rights in Intellectual Property are listed in Schedule 2.16. All said
licenses or other agreements are in full force and effect, there is no material
default by any party thereto, and, except as set forth on Schedule 2.16, all of
the rights of the Company thereunder are freely assignable. The Company has not
received any written notice or, to the knowledge of the Company, any verbal
notice to the effect that the licensors under said licenses and other agreements
did not have or do not have all requisite power and authority to grant the
rights purported to be conferred thereby. True and complete copies of all such
licenses or other agreements, and any amendments thereto, have been provided to
Buyer.

          (d) All licenses or other agreements under which the Company has
granted rights to others in Intellectual Property owned or licensed by the
Company are listed in Schedule 2.16. All of said licenses or other agreements
are in full force and effect, there is no


                                       14



Offer of Purchase and Sale


material default by any party thereto, and, except as set forth on Schedule
2.16, all of the rights of Company thereunder are freely assignable. True and
complete copies of all such licenses or other agreements, and any amendments
thereto, have been provided to Buyer.

          (e) The Company has taken all steps required in accordance with sound
business practice to establish and preserve its ownership of all Intellectual
Property rights with respect to its products, services and technology. The
Company has required all professional and technical employees and other
employees having access to valuable non-public information of Company to execute
agreements under which such employees are required to maintain the
confidentiality of all such information of the Company. The Company has not made
any such information available to any person other than employees of the Company
except pursuant to written agreements requiring the recipients to maintain the
confidentiality of such information and appropriately restricting the use
thereof. Except as disclosed on Schedule 2.16, the Company does not have any
knowledge of any infringement by others of any Intellectual Property rights of
the Company.

          (f) Except as disclosed on Schedule 2.16, no proceeding charging the
Company with infringement of any adversely held Intellectual Property has been
filed or to the knowledge of the Company is threatened to be filed. Except as
disclosed on Schedule 2.16, to the knowledge of the Company there exists no
unexpired patent or patent application which includes claims that would be
infringed by or otherwise adversely affect the products, activities or business
of the Company. To the Company's knowledge, the Company is not making
unauthorized use of any confidential information or trade secrets of any person.
Except as set forth in Schedule 2.16 the Company does not have any agreements or
arrangements with any person or entity related to confidential information or
trade secrets of such person or entity or restricting the Company's ability to
engage in business activities of any nature. Except as set forth on Schedule
2.16, to the Company's knowledge (based solely upon a review of the Company's
personnel files and related written records), none of the Company's employees
has any agreement or arrangement with any person or entity (other than the
Company) related to confidential information or trade secrets of such person or
entity or restricting such employee's ability to engage in business activities
of any nature. The activities of their employees on behalf of the Company do not
violate any such agreements or arrangements known to the Company.

          (g) SPEQ does not, and never has, owned or licensed any Intellectual
Property. There are no patents, trademarks, trademark applications or
registrations, registered copyrights or any other Intellectual Property used by
or useful to SPEQ. SPEQ is not a party to any license or other similar
agreement. No proceeding charging SPEQ with the infringement of any Intellectual
Property has been filed or is threatened. To the knowledge of the Company or the
Stockholders, no facts or circumstances exist which could give rise to any claim
or proceeding adverse to SPEQ relating to any such infringement claim.



                                       15



Offer of Purchase and Sale


     2.17 Contracts.

          (a) Except for contracts, commitments, plans, agreements and licenses
described in Schedule 2.17 or in any other Schedule attached hereto (true and
complete copies of which have been delivered to Buyer), the Company is not a
party to or subject to:

               (i) any agreement for the sale or other disposition of leases or
          other assets, creating or providing for any recourse obligation of the
          Company;

               (ii) any plan or contract providing for bonuses, pensions,
          options, stock purchases, deferred compensation, retirement payments,
          profit sharing, collective bargaining or the like, or any contract or
          agreement with any labor union;

               (iii) any employment contract or contract for services which
          requires the payment of more than $50,000 (CDN) annually or which is
          not terminable within 30 days by the Company without liability for any
          penalty or severance payment;

               (iv) any contract or agreement for the purchase of any commodity,
          material or equipment except purchase orders in the ordinary course
          for less than $50,000 (CDN) each, such orders not exceeding $125,000
          (CDN) in the aggregate;

               (v) any other contracts or agreements creating any obligations of
          the Company of $40,000 (CDN) or more on an individual basis or $80,000
          (CDN) or more on an aggregate basis, with respect to any such contract
          or agreement not specifically disclosed elsewhere under this
          Agreement;

               (vi) any contract or agreement providing for the purchase of all
          or substantially all of its requirements of a particular product from
          a supplier;

               (vii) any contract or agreement which by its terms does not
          terminate or is not terminable without penalty by the Company or its
          successors within one year after the date hereof;

               (viii) any contract or agreement for the sale or lease of its
          products not made in the ordinary course of business;

               (ix) any contract or arrangement with any sales agent or
          distributor of products of the Company;

               (x) any contract containing covenants limiting the freedom of the
          Company or any Principal Stockholders to compete in any line of
          business or with any person or entity;



                                       16



Offer of Purchase and Sale


               (xi) any contract or agreement for the purchase of any fixed
          asset for a price in excess of $25,000 (CDN) whether or not such
          purchase is in the ordinary course of business;

               (xii) any license agreement (as licensor or licensee);

               (xiii) any indenture, mortgage, promissory note, loan agreement,
          guaranty or other agreement or commitment for the borrowing of money;
          or

               (xiv) any contract or agreement with any officer, employee,
          director or stockholder of the Company or with any persons or
          organizations controlled by or affiliated with any of them.

     Except as disclosed on Schedule 2.17 or in any other Schedule attached
hereto, the Company is not in default under any such contracts, commitments,
plans, agreements or licenses described in said Schedule (individually a
"Contract" and collectively the "Contracts") and the Company has no knowledge of
conditions or facts which with notice or passage of time, or both, would
constitute a default, except where such a default could not reasonably be
expected to, individually or in the aggregate, have a Material Adverse Effect.
To the knowledge of the Company, each of the Contracts is valid and in full
force and effect, and will be enforceable by the Company against the other party
thereto in accordance with its terms, except for any non-competition provision
or agreement limiting the freedom of any party thereto to compete in any line of
business or with any person or entity, the benefits of which run to the Company,
the enforceability of which may be limited by the principles governing the
availability of equitable remedies.

          (b) As of the date hereof and as of the Closing Date SPEQ is not, and
will not be, a party to any contract, commitment, agreement or arrangement of
any type or nature.

     2.18 Litigation. Except as set forth on Exhibit 2.18, there is no pending
or, to the knowledge of the Company or any Stockholder, threatened litigation,
governmental or administrative proceeding or investigation to which the Company
is or reasonably may be made a party.

          (b) There is no pending or to the knowledge of any SPEQ Stockholder,
threatened litigation, governmental or administrative proceeding or
investigation to which SPEQ is or reasonably may be made a party.

     2.19 Compliance with Laws. Except as set forth in Schedule 2.19, to the
knowledge of the Company and SPEQ, each of the Company and SPEQ is in compliance
in all material respects with all applicable statutes, ordinances, orders,
judgments, decrees, rules and regulations promulgated by any federal,
provincial, state, municipal entity, agency, court or other governmental
authority which apply to the Company or SPEQ or to the conduct of their
businesses, and neither the Company nor SPEQ has received notice of a violation
or alleged violation of any such statute, ordinance, order, rule or regulation.


                                       17



Offer of Purchase and Sale


     2.20 Insurance. The physical properties and assets of the Company and SPEQ
are insured to the extent disclosed in Schedule 2.20 and all such insurance
policies and arrangements are disclosed in said Schedule. Said insurance
policies and arrangements are in full force and effect, all premiums with
respect thereto are currently paid, and each of the Company and SPEQ is in
compliance in all material respects with the terms thereof. Said insurance is
adequate and customary for the business engaged in by each of the Company and
SPEQ and is sufficient for compliance by each of the Company and SPEQ with all
requirements of law and all agreements and leases to which either the Company or
SPEQ is a party.

     2.21 Powers of Attorney. None of the Company, SPEQ or any Stockholder has
any outstanding power of attorney except for the power of attorney set forth in
Section 1.5 hereof.

     2.22 Finder's Fee. None of the Company, SPEQ or any Stockholder has
incurred or become liable for any broker's commission or finder's fee relating
to or in connection with the transactions contemplated by this Agreement.

     2.23 Permits; Burdensome Agreements. Schedule 2.23 lists all permits,
registrations, licenses, franchises, certifications and other approvals
(collectively, the "Approvals") required from federal, state, provincial, or
territorial, municipal or local authorities in order for the Company and SPEQ to
conduct their business. Each of the Company and SPEQ has obtained all such
Approvals, which are valid and in full force and effect, and is operating in
compliance therewith. Such Approvals include, but are not limited to, those
required under federal, state, provincial, territorial or local statutes,
ordinances, orders, requirements, rules, regulations, or laws pertaining to
environmental protection, public health and safety, worker health and safety,
buildings, highways or zoning. Except as disclosed in Schedule 2.23 or in any
other Schedule hereto, neither the Company nor SPEQ is subject to or bound by
any agreement, judgment, decree or order which may materially and adversely
affect its business or prospects, its condition, financial or otherwise, or any
of its assets or properties.

     2.24 Corporate Records; Copies of Documents. The corporate record books of
each of the Company and SPEQ accurately record all material corporate action
taken by their respective stockholders and boards of directors and committees.
The copies of the corporate records of each of the Company and SPEQ, as made
available to Buyer for review, are true and complete copies of the originals of
such documents. Each of the Company and SPEQ have made available for inspection
and copying by Buyer and its counsel true and correct copies of all documents
referred to in this Section or in the Schedules delivered to Buyer pursuant to
this Agreement.

     2.25 Transactions with Interested Persons. Except as set forth in Schedule
2.25, none of the Company, SPEQ, any Stockholder, officer, supervisory employee
or director of the Company and, to the knowledge of the Company, none of their
respective spouses, parents, children, siblings, mothers or fathers-in-law, sons
or daughters-in-law or brothers or sisters-in- law, owns directly or indirectly
on an individual or joint basis any material interest in, or


                                       18



Offer of Purchase and Sale


serves as an officer or director or in another similar capacity of, any
competitor or supplier of the Company, or any organization which has a material
contract or arrangement with the Company.

     2.26 Employee Benefit Programs.

          (a) Schedule 2.26 identifies all retirement, pension, supplemental
pension benefit, bonus, stock purchase, profit sharing, stock option, deferred
compensation, severance or termination pay, insurance, medical hospital, dental,
vision care, drug, sick leave, short term or long term disability, salary
continuation, unemployment benefits, vacation, incentive, compensation or any
other employee benefit plan or program in existence within the Company or that
is contributed to, or required to be contributed to, by or on behalf of the
Company, for the benefit of its current and former employees (the "Benefit
Plans");

          (b) Each Benefit Plan has been maintained in material compliance with
its terms and with the requirements prescribed by all applicable laws and the
Company does not know and has no reason to know of any failure of any party to
comply with any laws applicable to the Benefit Plans;

          (c) No promises or commitments have been made by the Company to its
employees or former employees to amend any of the Benefit Plans, to provide
increased benefits thereunder or to establish any new benefit plan, except as
required by applicable laws or as disclosed in Schedule 2.26;

          (d) All contributions or premiums required to be paid, deducted or
remitted and all obligations required to be performed by the Company pursuant to
the terms of any Benefit Plan or by applicable laws, have been paid, deducted,
remitted or performed in a timely fashion and there are no outstanding defaults
or violations with regard to same;

          (e) All withdrawals, applications or transfers of funds or assets from
any of the Benefit Plans have been in compliance with the terms of such plans
and with approval of the appropriate regulatory authorities;

          (f) The transactions contemplated in this Agreement will not, alone or
upon the occurrence of any additional or subsequent event, result in any
payment, acceleration, vesting or increase in benefits under any Benefit Plans
with respect to any employee;

          (g) With respect to each Benefit Plan of the Company, complete and
correct copies of the following documents (if applicable to such Benefit Plan)
have previously been delivered to Buyer: (i) all documents embodying or
governing such Benefit Plan, and any funding medium for the Benefit Plan
(including, without limitation, trust agreements) as they may have been amended;
(ii) the summary plan description for such Benefit Plan (or other descriptions
of such employee program provided to employees) and all modifications thereto;
(iii) any insurance policy (including any fiduciary liability insurance policy)
related to such Benefit Plan; (iv) any documents evidencing any loan to Benefit
Plan that is a leveraged


                                       19


Offer of Purchase and Sale


employee stock ownership plan; and (v) all other materials reasonably necessary
for Buyer to perform any of its responsibilities with respect to any Benefit
Plans subsequent to the Closing date (including, without limitation, health care
continuation requirements).

          (h) The Company does not maintain, and has never maintained, any
pension plan for the benefit of its current and former employees (a "Pension
Plan") and no Pension Plan is, or has ever been, maintained by a third party on
behalf of the Company; and

          (i) SPEQ does not presently maintain and has never maintained any
Benefit Plan or Pension Plan.

     2.27 Environmental Matters.

          (a) Except as set forth in Schedule 2.27, (i) neither the Company nor
SPEQ has ever generated, handled, transported, used, stored, treated, disposed
of, or managed any Hazardous Waste (as defined below); (ii) no Hazardous
Material (as defined below) has ever been or is threatened to be spilled,
emitted, deposited, released, discharged or disposed of nor has either the
Company or SPEQ permitted any Hazardous Material to be spilled, emitted,
deposited, released, discharged or disposed of at any site presently or formerly
owned, operated, leased, or used by either the Company or SPEQ, or, to the
knowledge of the Company, has ever been located in the soil or groundwater at
any such site; (iii) no Hazardous Material has ever been transported from any
site presently or formerly owned, operated, leased, or used by the Company or
SPEQ for treatment, storage, or disposal at any other place; (iv) neither the
Company nor SPEQ presently owns, operates, leases, or uses, nor has it
previously owned, operated, leased, or used any site on which underground
storage tanks are or were located; and (v) no lien has ever been imposed by any
governmental agency on any property, facility, machinery, or equipment owned,
operated, leased, or used by the Company or SPEQ in connection with the presence
of any Hazardous Material.

          (b) Except as set forth in Schedule 2.27, (i) neither the Company nor
SPEQ has incurred any liability under, nor has it ever violated, any
Environmental Law or Environmental Permit (as defined below); (ii) each of the
Company and SPEQ, any property owned, operated, leased, or used by either of
them, and any facilities and operations thereon, is presently in compliance with
all applicable Environmental Laws and neither the Company nor SPEQ has incurred
any notice of non-compliance with any Environmental Laws or Environmental
Permits and there are no proceedings in progress, pending or threatened which
may result in the cancellation, revocation, suspension, rescission or amendment
of any Environmental Permit; (iii) neither the Company nor SPEQ has ever entered
into or been subject to any judgment, conviction, sentence, fine, compliance, or
administrative order with respect to any environmental or health and safety
matter or received any request for information, notice, demand letter,
administrative inquiry, or formal or informal complaint or claim with respect to
any environmental or health and safety matter or the enforcement of any
Environmental Law except for routine health and safety inspections and none of
such inspections have resulted in any adverse findings or any liability to the
Company; and (iv)


                                       20



Offer of Purchase and Sale


neither the Company nor SPEQ has any reason to believe that any of the items
enumerated in clause (iii) of this subsection will be forthcoming.

          (c) Except as set forth in Schedule 2.27, the Company has not received
any written or, to the knowledge of the Company, verbal notice that any site
owned, operated, leased, or used by the Company or SPEQ contains any asbestos or
asbestos-containing material, any polychlorinated biphenyls (PCBs) or equipment
containing PCBs, or any urea formaldehyde foam insulation.

          (d) Each of the Company and SPEQ has provided to Buyer copies of all
documents, records, and information available to the Company or SPEQ concerning
any environmental or health and safety matter relevant to the Company or SPEQ,
whether generated by the Company or SPEQ including without limitation,
environmental audits, environmental risk assessments, site assessments,
documentation regarding off-site disposal of Hazardous Materials, spill control
plans, and reports, correspondence, permits, licenses, approvals, consents, and
other authorizations related to environmental or health and safety matters
issued by any governmental agency.

          (e) For purposes of this Section 2.27, (i) "Hazardous Material" shall
mean and include any hazardous waste, hazardous material, hazardous substance,
residual hazardous material, petroleum product, oil, toxic substance, pollutant,
contaminant, or other substance which is explosive, gaseous, flammable,
poisonous, radioactive, corrosive, oxidizing or leachable or which may pose a
threat to the environment or to human health or safety, as defined or regulated
under any Environmental Law; (ii) "Hazardous Waste" shall mean and include any
hazardous waste or residual hazardous material, as defined or regulated under
any Environmental Law; (iii) "Environmental Law" shall mean any environmental or
health and safety-related law, regulation, rule, ordinance, or by-law at the
foreign, federal, state, provincial or local level, whether existing as of the
date hereof, previously enforced, or subsequently enacted and applicable to the
business or operations of the Company or SPEQ; (iv) "Environmental Permit" shall
mean all permits, certificates, approvals, consents, authorizations,
attestations, registrations and licenses issued by any governmental or
regulatory authority pursuant to any Environmental Laws in connection with the
Company, operations, facilities, property, processes, undertakings or business;
(v) "Company" shall mean and include the Company, each of its Subsidiaries and
all other entities for whose conduct the Company and all entities is or may be
held responsible under any Environmental Law; and (vi) "SPEQ" shall mean and
include SPEQ and all entities for whose conduct SPEQ is or may be held
responsible under any Environmental Law.

     2.28 List of Directors and Officers. Schedule 2.28 contains a true and
complete list of all current directors and officers of the Company and SPEQ. In
addition, Schedule 2.28 contains a list of all managers, employees and
consultants of the Company and SPEQ who, individually, have received or are
scheduled to receive compensation from the Company or SPEQ for the fiscal year
ending 1998 in excess of $50,000 (CDN) in each case such Schedule includes the
current job title and aggregate annual compensation of each such individual.



                                       21



Offer of Purchase and Sale


     2.29 Backlog.

          (a) As of December 31, 1997, the Company had a backlog of firm orders
for the sale or lease of products or services, for which revenues have not been
recognized by the Company, as set forth in Schedule 2.29.

          (b) SPEQ does not have and never has had a backlog of orders for the
sale or lease of products or services.

     2.30 Employees; Labor Matters.

          (a) The Company employs a total of approximately forty-five (45)
full-time employees and three (3) part-time employees and generally enjoys good
employer-employee relationships.

          (b) There is no union certification, pending or threatened, with
regard to any employees of the Company. There are no collective agreements in
effect, currently being negotiated or scheduled to be negotiated within the next
twelve months by the Company.

          (c) There are no labour disturbances, lock-outs, strikes or any other
concerted interference, with normal operations involving the Company's employees
existing or pending.

          (d) The Company is not in default in any material respect of any term
or condition of any employment agreement (oral or written) with any employee
and, to the best of the Company's knowledge, there are no material grievances or
legal proceedings, existing or threatened, in any way related to any of its
employees, except as described in Schedule 2.30. Except as disclosed on Schedule
2.30, there is no contract or agreement under which Buyer may become liable to
provide any benefits to any employee or ex-employee of the Company. There are no
grievances, claims, complaints, charges or investigations, of any nature, that
have been filed against the Company and there are no arbitration or proceedings
which are pending or threatened.

          (e) Except as disclosed in Schedule 2.30, the Company has complied in
all material respects with all applicable laws (including tax laws), rules,
regulations and orders relating to employment, including those relating to
wages, hours, collective bargaining, occupational health and safety, employment
standards, employment injury and workers' compensation.

          (f) Except as disclosed in Schedule 2.30, there are no orders,
charges, complaints, prosecutions or investigations, pending or threatened,
against the Company relating to occupational health and safety, workers'
compensation, employment injury, employment standards legislation, unfair labour
practices or human rights legislation or under any other legislation relating to
employees.



                                       22



Offer of Purchase and Sale


          (g) The Company has paid in full any and all amounts owing under
provincial workers' compensation legislation and any outstanding workers'
compensation claims would not result in penalties, fines, or the payment of
additional assessments under such legislation.

          (h) The Company has no policy, practice, plan or program pertaining to
notices of termination and/or severance payments, and there is no agreement or
promise which has been made to any employee of the Company in that regard,
except as disclosed in Schedule 2.30.

          (i) SPEQ does not and has never employed any person or entity.

     2.31 Customers, Distributors and Suppliers.

          (a) Schedule 2.31 sets forth any customer, sales representative or
distributor (whether pursuant to a commission, royalty or other arrangement)
which accounts for more than $250,000 (CDN) in revenue of the Company for the
eleven months ended December 31, 1997 (collectively, the "Customers and
Distributors"). Schedule 2.31 lists all of the suppliers of the Company to whom
during the eleven month period ended December 31, 1997, the Company made
payments aggregating $125,000 (CDN) or more showing, with respect to each, the
name, address and dollar volume involved (the "Suppliers"). The relationships of
the Company with its Customers, Distributors and Suppliers are good commercial
working relationships. Except as disclosed in Schedule 2.31, no Customer,
Distributor or Supplier has canceled, materially modified, or otherwise
terminated its relationship with the Company, or has during the twelve months
ending on the date hereof decreased materially its services, supplies or
materials to the Company or its usage or purchase of the services or products of
the Company, nor to the knowledge of Company, does any Customer, Distributor or
Supplier have any plan or intention to do any of the foregoing.

          (b) SPEQ does not have and has never had any relationships with any
customers, sales representatives or distributors.

     2.32 Transfer of Shares. No holder of stock of either the Company or SPEQ
has at any time transferred any of such stock to any employee of the Company or
SPEQ, which transfer constituted or could be viewed as compensation for services
rendered to the Company or SPEQ by said employee.

     2.33 Stock Repurchase. Except as disclosed in Schedule 2.33, since January
31, 1997, neither the Company nor SPEQ has redeemed or repurchased any of its
capital stock.

     2.34 Hart -Scott Rodino. The Company neither (i) owns assets located in the
United States with a value of $15,000,000 (U.S.) or more nor (ii) has revenues
reflected on its most recent regularly prepared balance sheet of $25,000,000
(U.S.) or more.



                                       23



Offer of Purchase and Sale


     2.35 Disclosure. The representations, warranties and statements contained
in this Agreement and in the certificates, exhibits and schedules delivered by
the Company and SPEQ pursuant to this Agreement to Buyer do not contain any
untrue statement of a material fact, and, when taken together, do not omit to
state a material fact required to be stated therein or necessary in order to
make such representations, warranties or statements not misleading in light of
the circumstances under which they were made.


SECTION 3. COVENANTS OF THE COMPANY AND THE PRINCIPAL STOCKHOLDERS.
- -------------------------------------------------------------------

     3.1 Making of Covenants and Agreements. The Company and each of the
Stockholders jointly but not solidary, hereby make the covenants and agreements
set forth in this Section 3 to the extent that such covenants and agreements
relate to, or constitute obligations of, the Company and each of the SPEQ
Stockholders, jointly but not solidary, hereby make the covenants and agreements
set forth in this Section 3 to the extent that such covenants and agreements
relate to, or constitute obligations of, SPEQ. The Stockholders agree to cause
the Company and the SPEQ Stockholders agree to cause SPEQ to comply with such
agreements and covenants.

     3.2 Cooperation. The Company, SPEQ and the Stockholders shall cooperate
with all reasonable requests of Buyer or any of its representatives and agents
to more effectively consummate the transactions contemplated hereby and the
transactions referred to herein.

     3.3 Consents. The Company and SPEQ shall obtain or cooperate with Buyer in
obtaining all consents, authorizations and approvals of third parties including,
without limitation, all consents identified in Schedule 3.3 and any requisite
consent of any governmental authorities, regulatory agencies and other entities
necessary in connection with the consummation of the transactions contemplated
hereby or referred to herein.

     3.4 Notice of Default. Promptly upon the occurrence of, or promptly upon
any one of the Company, SPEQ or any Stockholder becoming aware of the impending
or threatened occurrence of, any event which would cause or constitute a breach
or default, or would have caused or constituted a breach or default had such
event occurred or been known to the Company, SPEQ or any Stockholder prior to
the date hereof, of any of the representations, warranties or covenants of the
Company, SPEQ or any Stockholder contained in or referred to in this Agreement
or in any Schedule or Exhibit referred to in this Agreement, the Company, SPEQ
or any Stockholder shall give detailed written notice thereof to Buyer and the
Company, SPEQ or any Principal Stockholder shall use its or his reasonable best
efforts to prevent or promptly remedy the same.

     3.5 Conduct of Business. Except as contemplated by this Agreement
including, without limitation, the implementation of Lasiris Corporate
Reorganization and for the purpose of changing the Company's fiscal year end or
as is necessary to effectuate the transactions


                                       24



Offer of Purchase and Sale


contemplated hereby, between the date of this Agreement and the Closing Date,
the Company shall and the Stockholders shall cause the Company to:

          (a) Conduct its business in the ordinary course and refrain from
changing or introducing any method of management or operations except in the
ordinary course of business consistent with prior practices;

          (b) Refrain from making any change or incurring any obligation to make
a change in its Articles of Incorporation, By-laws or authorized or issued
capital stock;

          (c) Refrain from declaring, setting aside or paying any dividend,
making any other distribution in respect of its capital stock or making any
direct or indirect redemption, purchase or other acquisition of its stock;

          (d) Refrain from making any purchase, sale or disposition of any asset
or property costing more than $40,000 (CDN) other than in the ordinary course of
business, from purchasing any capital asset for use in the business costing more
than $80,000 (CDN) and from mortgaging, pledging, subjecting to a lien or
otherwise encumbering any of the assets of the Company other than in the
ordinary course of business.

          (e) Refrain from incurring or assuming any liability, obligation or
indebtedness for borrowed money in an aggregate amount in excess of $25,000
(CDN) other than any such liability relating to amounts not to exceed $250,000
(CDN) borrowed under the Company's existing line of credit with the Toronto
Dominion Bank which amounts are borrowed in the ordinary course of business
consistent with the Company's past practice or incurring or assuming any
contingent liability as a guarantor or otherwise with respect to the obligations
of others, and from incurring any other contingent or fixed obligations or
liabilities except in the ordinary course of business;

          (f) Refrain from canceling any material indebtedness owed to the
Company or waiving any claims or rights of substantial value, other than in the
ordinary course of business consistent with past practice;

          (g) Refrain from making any change in the compensation payable or to
become payable to any of its officers, employees, agents or independent
contractors except in connection with promotions made, or bonuses paid, in the
ordinary course of business consistent with past practices, provided that
payment of a bonus to each Principal Stockholder in accordance with the
provisions set forth on Schedule 3.5(g) attached hereto shall be deemed to be in
the ordinary course of business consistent with the past practices;

          (h) Refrain from adopting or amending any Employee Benefit Plan or
collective bargaining agreement, except as may be required by law;

          (i) Refrain from prepaying loans (if any) from its shareholders,
officers or directors or making any change in such borrowing arrangements;


                                       25



Offer of Purchase and Sale


          (j) Refrain from making any change in any method of accounting or
accounting practice or policy except in connection with the capitalization of
costs of equipment used in connection with the Company's research and
development activities and other than those required by generally accepted
accounting principles;

          (k) Use its best efforts consistent with its prior business practices
to prevent any change with respect to its management and supervisory personnel
and banking arrangements;

          (l) Use its best efforts consistent with its past practices to keep
intact its business organizations, to keep available its present employees and
to preserve the goodwill of all suppliers, customers and others having business
relations with it in connection with the Company; and

          (m) Have in effect and maintain at all times all insurance of the kind
described in Section 2.20 above or equivalent insurance with any substitute
insurers.

          (n) Except as contemplated by the Agreement or as is necessary to
effectuate the transactions contemplated hereby, between the date of this
Agreement and the Closing Date, SPEQ and the SPEQ Stockholders shall cause SPEQ
to refrain from taking any action other than (i) to continue to hold the shares
of the Company Stock held by SPEQ as of the date hereof and (ii) to issue not
more than 19 shares of SPEQ Stock to the SPEQ Stockholders in repayment of
certain obligations of SPEQ to its stockholders.

     3.6 Acquisition Proposals. Except in connection with the transactions
contemplated hereby unless and until this Agreement shall have been terminated
in accordance with its terms, neither the Company, SPEQ, nor the Stockholders
shall cause the Company or SPEQ to (a) take any action to solicit, initiate
submission of or encourage any Acquisition Proposal (as defined below), (b)
participate in any substantive discussions or negotiations regarding an
Acquisition Proposal with any person other than Buyer and their representatives
or (c) furnish any information with respect to or afford access to the
properties, books or records of the Company or SPEQ to any person who is known
by the Company, SPEQ or any Stockholder to be considered making or has made an
offer with respect to an Acquisition Proposal other than Buyer or (d) otherwise
cooperate in any way with, or assist or participate in, facilitate or encourage,
any effort or attempt by any person other than by Buyer and its representatives
to do or seek any of the foregoing. Each of the Company, SPEQ and any
Stockholder shall promptly notify Buyer upon receipt of any offer or notice that
any person is considering making an offer with respect to an Acquisition
Proposal and shall not accept any such offer for so long as this Agreement
remains in effect. For purposes hereof, an "Acquisition Proposal" shall include
any offer or other proposal to acquire or purchase all or a portion of the
capital stock or any assets of, or any equity interest in, the Company or SPEQ,
any merger or business combination with the Company or SPEQ, any public or
private offering of shares of the capital stock of the Company, SPEQ, or any
other acquisition or financing involving the Company or SPEQ.



                                       26



Offer of Purchase and Sale


     3.7 Transfers of Shares; Voting. Except for the implementation of the
Lasiris Corporate Reorganization, unless and until this Agreement shall have
been terminated, no Stockholder shall directly or indirectly exchange, deliver,
assign, pledge, encumber or otherwise transfer or dispose of any of the Company
Stock or SPEQ Stock which he holds of, nor shall any Stockholder directly or
indirectly grant any right of any kind to acquire, dispose of, vote or otherwise
control in any manner any Company Stock or SPEQ Stock.

     3.8 Confidentiality. The Company and the Principal Stockholders shall abide
by the terms of that certain Confidentiality Agreement dated August 14, 1997
(the "Confidentiality Agreement"), a copy of which is attached hereto as Exhibit
D. By the execution of this Offer, each SPEQ Stockholder agrees to abide by the
terms of such Confidentiality Agreement, except as may be required to comply
with the requirements of applicable law.

     3.9 Tax Returns. The Company, SPEQ and each Stockholder shall use its or
his best efforts to cause the Company and SPEQ, in accordance with applicable
law, (i) to promptly prepare and file on or before the due date or any extension
thereof all federal, territorial, provincial, state and local tax returns
required to be filed by them with respect to taxable periods of the Company that
include any period ending on or before the Closing and (ii) to pay all Taxes of
the Company and SPEQ shown on such returns attributable to periods ending on or
before the Closing.

     3.10 Options and Other Rights. Each of the Company, SPEQ, and the Principal
Stockholders shall use its or his best efforts to cause each person or entity
which holds options, warrants or other rights or securities exercisable for or
convertible into shares of any class of equity security of the Company or SPEQ
to agree to the termination or cancellation of such rights or securities
pursuant to a written agreement in form and substance satisfactory to Buyer and
its counsel.

     3.11 Consummation of Agreement. Each of the Company, SPEQ and the
Stockholders shall use its or his reasonable best efforts to perform and fulfill
all conditions and obligations on his part to be performed and fulfilled under
this Agreement to the end that the transactions contemplated by this Agreement
be fully carried out.

     3.12 Employees. From the date hereof until the Closing Date, the Company
will not, without the prior consent of Buyer (which consent shall not be
reasonably withheld) modify the terms of employment including salary, wages,
fringe benefits on Benefit Plans applicable to any of its employees except that
the Company may, in consultation with Buyer, grant scheduled salary increases at
such time and in such amounts as are in the ordinary course of business with the
Company's past practices, nor except as disclosed on Schedule 3.12, shall it
engage the services of any new employee except in the ordinary and normal course
of business.

SECTION 4. REPRESENTATIONS AND WARRANTIES OF BUYER.
- ---------------------------------------------------

     4.1 Making of Representations and Warranties. As a material inducement to
the Company and the Stockholders to enter into this Agreement and consummate the
transactions


                                       27



Offer of Purchase and Sale


contemplated hereby, Buyer hereby makes the representations and warranties to
the Company and the Stockholders contained in this Section 4.

     4.2 Organization of Buyer. Buyer is a corporation duly organized, validly
existing and in good standing under the laws of Massachusetts with full
corporate power to own or lease its properties and to conduct its business in
the manner and in the places where such properties are owned or leased or such
business is conducted by it. The copies of Buyer's Articles of Incorporation as
amended to date, certified by the Secretary of the State of Massachusetts, and
of Buyer's By-laws, as amended to date, certified by Buyer's Secretary, and
heretofore delivered to the Company's counsel, are complete and correct, and no
amendments thereto are pending. Buyer is not in violation of any term of its
Articles of Incorporation or By-laws. Buyer is qualified to do business as a
foreign corporation in all jurisdictions in which the nature of the business
conducted by Buyer or the characters of the assets owned or leased by it make
such qualification necessary or prudent except for those jurisdictions wherein a
failure to be so qualified would not have a Material Adverse Effect on Buyer.

     4.3 Authority of Buyer. Buyer has full right, authority and power to enter
into this Agreement and each agreement, document and instrument to be executed
and delivered by Buyer pursuant to this Agreement and to carry out the
transactions contemplated hereby including, without limitation, the formation of
Canco. The execution, delivery and performance by Buyer of this Agreement, and
each other agreement, document and instrument have been duly authorized by all
necessary corporate action of Buyer and no other action on the part of Buyer is
required in connection therewith. This Agreement and each other agreement,
document and instrument executed and delivered by Buyer pursuant to this
Agreement constitute, or when executed and delivered will constitute, valid and
binding obligations of Buyer enforceable in accordance with their terms.

     4.4 Litigation. Except as disclosed in Schedule 4.4, there is no pending
or, to the knowledge of Buyer, threatened litigation, governmental or
administrative proceeding or investigation, to which Buyer is or reasonably may
be made a party.

     4.5 Finder's Fee. Buyer has not incurred or become liable for any broker's
commission or finder's fee relating to or in connection with the transactions
contemplated by this Agreement.

     4.6 Securities and Exchange Commission Filings. Buyer has filed all
required annual and quarterly reports with the Securities and Exchange
Commission (the "SEC") since January 1, 1996 (each, an "SEC Report" and
collectively, the "SEC Reports"), all of which were prepared in accordance with
the applicable requirements of the Securities Exchange Act of 1934, as amended,
in all material respects. A copy of each SEC Report has been delivered to the
Company by Buyer. Except to the extent, if any, as may have been appropriately
disclosed in an SEC Report filed subsequent thereto and prior to the date
hereof, as of their respective dates, the SEC Reports did not contain any untrue
statement of a material fact or omit to state a material fact required to be
stated therein or necessary to make the statements


                                       28


Offer of Purchase and Sale


therein, in light of the circumstances under which they were made, not
misleading. The SEC Reports and the disclosures made by the Buyer in the
Schedules attached hereto, taken as a whole, do not omit to state any material
fact with respect to which there is a substantial likelihood that, if such fact
had been disclosed in connection herewith, such fact would have been viewed by a
reasonable investor as having significantly altered the total mix of information
made available by the Buyer.

     4.7 No Conflicts. This Agreement and each agreement, document and
instrument executed and delivered by Buyer pursuant to this Agreement
constitutes, or when executed and delivered will constitute, valid and binding
obligations of Buyer enforceable in accordance with their terms. The execution,
delivery and performance by Buyer of this Agreement and each other Transaction
Document to be executed, delivered or performed by Buyer with or without the
giving of notice or the lapse of time or both, (i) does not and will not violate
any provision of the Articles of Incorporation or By-laws of Buyer; (ii) does
not and will not violate any laws of the United States, Massachusetts or other
jurisdiction applicable to Buyer or require Buyer to obtain any approval,
consent or waiver of, or make any filing with, any person or entity
(governmental or otherwise) that has not been obtained or made; and (iii) does
not and will not result in a breach of, constitute a default under, accelerate
any obligation under, or give rise to a right of termination of any indenture or
loan or credit agreement or any other agreement, contract, instrument, mortgage,
lien, lease, permit, authorization, order, writ, judgment, injunction, decree,
determination or arbitration award to which Buyer is a party or by which the
property of Buyer is bound or affected, or result in the creation or imposition
of any mortgage, hypothecation, pledge, lien, security interest or other charge
or encumbrance on any of Buyer's assets or Buyer Stock, which, individually or
in the aggregate, could have a Material Adverse Effect on Buyer, except as
specifically identified on Schedule 4.7.


SECTION 5. COVENANTS OF BUYER.
- ------------------------------

     5.1 Making of Covenants and Agreements. Buyer hereby makes to the Company
and the Principal Stockholder the covenants and agreements set forth in this
Section 5, and agrees to use reasonable efforts to comply with and perform all
covenants and agreements contained in this Section 5.

     5.2 Formation of Canco. Buyer shall duly organize Canco under the laws of
Canada or a province thereof pursuant to a (i) Certificate and Articles of
Incorporation, substantially in the form of Exhibit E-1 attached hereto and (ii)
Bylaws, substantially in the form of Exhibit E-2 attached hereto all as may be
satisfactory to the Principal Stockholders following negotiation in good faith.

     5.3 Execution of Contracts. Buyer shall cause Canco to join this Agreement
as a party and at the Closing to execute and deliver any other Transaction
Documents contemplated by this Agreement; it being understood that Buyer will
remain jointly and solidary liable with Canco with respect to all of Buyer's
obligations, covenants and agreements contained in this Agreement or
contemplated hereby.


                                       29



Offer of Purchase and Sale


     5.4 Consents. Buyer and Canco shall obtain all consents, authorizations and
approvals of third parties including, without limitation, any requisite consent
of the SEC or any governmental authorities, regulatory agencies and other
entities necessary in connection with the consummation of the transactions
contemplated hereby or referred to herein including, without limitation, the
issuance of the Exchangeable Shares and the exercise by the Stockholders of
their rights arising as holders of such Exchangeable Shares.

     5.5 Confidentiality. From and after the date hereof until the Closing,
Buyer shall abide by the terms of the Confidentiality Agreement, except as may
be required to comply with the requirements of applicable law. In the event the
transactions contemplated by this Agreement fail to close, Buyer shall continue
to be bound by the terms of the Confidentiality Agreement.

     5.6 Conduct of Business. Except as contemplated by this Agreement or in
connection with the financing of the transactions contemplated hereby, from and
after the date hereof and until the Closing, Buyer shall conduct its business in
the ordinary course consistent with its past practice and shall refrain from
making any changes to its Amended and Restated Articles of Organization or
by-laws.


SECTION 6. CONDITIONS.
- ----------------------

     6.1 Conditions to the Obligations of Buyer. The obligation of Buyer to
consummate this Agreement and the transactions contemplated hereby are subject
to the fulfillment, prior to or at the Closing, of the following conditions
precedent:

          (a) Representations; Warranties; Covenants. Each of the
representations and warranties of the Company, SPEQ and the Stockholders
contained in Section 2 shall be true and correct in all material respects as of
the date of this Agreement and as of the Closing Date as though made on and as
of the Closing; and the Company, SPEQ and each of the Stockholders shall, on or
before the Closing, have performed all of their obligations hereunder which by
the terms hereof are to be performed on or before the Closing provided, however,
that for the purpose of determining satisfaction of this condition, no effect
shall be given to any exception in such representations and warranties relating
to materiality or knowledge of the Company or SPEQ; each of the conditions
specified in this Section 6.1 shall have been satisfied or waived in writing by
Buyer; and on the Closing Date a certificate to such effect executed on behalf
of each the Company, SPEQ and the Stockholders, as appropriate, shall be
delivered to Buyer.

          (b) Authorization. The Board of Directors of each of the Company and
SPEQ shall have duly adopted resolutions in form reasonably satisfactory to
Buyer and shall have taken all action necessary for the purpose of authorizing
each of the Company and SPEQ to consummate the transactions contemplated by this
Agreement in accordance with the terms hereof.



                                       30



Offer of Purchase and Sale


          (c) No Material Adverse Change. There shall have been no material
adverse change in the financial condition, prospects, properties, assets,
liabilities, business or operations of the Company or SPEQ since the date
hereof, whether or not in the ordinary course of business.

          (d) Certificate from Officers. The Company shall have delivered to
Buyer (i) a certificate of the Company's President and Chief Financial Officer
dated as of the Closing to the effect that the statements set forth in
paragraphs (a) and (b) above in this Section 6.1 are true and correct and (ii) a
certificate from an authorized representative of SPEQ dated as of the Closing to
the effect that the statements set forth in paragraphs (a) and (b) above this
Section 6.1 are true and correct.

          (e) Approval of Buyer's Counsel. All actions, proceedings, instruments
and documents required to carry out this Agreement and the transactions
contemplated hereby and all related legal matters contemplated by this Agreement
shall have been approved by Goodwin, Procter & Hoar LLP as counsel for Buyer,
and such counsel shall have received on behalf of Buyer such other certificates,
opinions, and documents in form satisfactory to such counsel, as Buyer may
reasonably require from the Company, SPEQ and the Stockholders to evidence
compliance with the terms and conditions hereof as of the Closing and the
correctness as of the Closing of the representations and warranties of the
Stockholders, the Company and SPEQ and the fulfillment of their respective
covenants.

          (f) Escrow Agreement. Each of Canco, Buyer, Stockholders and the
Escrow Agent shall have executed and delivered the Escrow Agreement establishing
the Escrow Account (as defined therein) which shall secure the obligations of
the Stockholders under Section 9 hereof.

          (g) Opinion of Counsel. On the Closing Date, Buyer shall have received
from McCarthy Tetrault, counsel for the Company, SPEQ and the Principal
Stockholders, an opinion as of said date, in form of Exhibit F attached hereto.

          (h) No Litigation. There shall have been no determination by Buyer,
acting in good faith, that the consummation of the transactions contemplated by
this Agreement has become inadvisable or impracticable by reason of the
institution or threat by any person or any federal, state, territorial,
provincial or other governmental authority of litigation, proceedings or other
action against Buyer, the Company, SPEQ or any Stockholder which, individually
or in the aggregate, could have a Material Adverse Effect on the Company. The
transactions contemplated hereby shall not be in violation of any law or
regulation and shall not be subject to any injunction, stay or restraining
order.

          (i) Consents. The Company, SPEQ and the Stockholders shall have made
all filings with and notifications of governmental authorities, regulatory
agencies and other entities required to be made by the Company, SPEQ or the
Stockholders in connection with the execution and delivery of this Agreement,
the performance of the transactions contemplated hereby and the continued
operation of the business of the Company and SPEQ by Buyer


                                       31



Offer of Purchase and Sale


subsequent to the Closing; and the Company, SPEQ, the Stockholders and Buyer
shall have received all authorizations, waivers, consents and permits, in form
and substance reasonably satisfactory to Buyer, from all third parties,
including, without limitation, those consent referenced in Schedule 3.3 and all
applicable governmental authorities, regulatory agencies, lessors, lenders and
contract parties, required to permit the continuation of the business of the
Company and SPEQ and the consummation of the transactions contemplated by this
Agreement, and to avoid a breach, default, termination, acceleration or
modification of any indenture, loan or credit agreement or any other agreement,
contract, instrument, mortgage, lien, lease, permit, authorization, order, writ,
judgment, injunction, decree, determination or arbitration award as a result of,
or in connection with, the execution and performance of this Agreement.

          (j) Employment Agreements. Each of Alain Beauregard and Luc Many shall
have executed and delivered to Buyer or Canco an Employment and Non-Competition
Agreement in substantially the form of Exhibit G attached hereto.

          (k) Financing. Buyer shall have received debt financing on terms and
conditions satisfactory to Buyer, in its sole discretion, and in such amount as
Buyer may deem necessary to finance the transactions contemplated hereby plus
adequate working capital for the acquired businesses.

          (l) Business Relations. Buyer shall be reasonably satisfied based on
personal interviews to be conducted, to the extent reasonably practical, jointly
by representatives of Buyer and the Company with the Customers, Distributors and
Suppliers identified on Schedule 6.1(l) that such Customers, Distributors and
Suppliers intend to continue their current level of business with the Company
after the closing.

          (m) Employee Programs. The Company shall have taken all steps
necessary under the relevant documents and applicable law to maintain the
qualification of each Benefit Plan and Pension Plan identified on Schedule 2.26
notwithstanding the purchase of the Company Stock and SPEQ Stock by Buyer.

          (n) Resignations. Each of the Company and SPEQ shall have delivered to
Buyer the resignations of each of the Directors of the Company and SPEQ
identified on Schedule 6.1(n) , such resignations to be effective at the
Closing.

          (o) Releases. The Company shall have delivered to Buyer general
releases signed by each of the Stockholders of all claims which any of them have
against the Company and SPEQ in the form of Exhibit H attached hereto.

          (p) Due Diligence and Disclosure Schedules. Buyer, in its sole
discretion, shall be satisfied, with the results of its legal, accounting,
business and other due diligence review of the Company and SPEQ. Buyer, in its
sole discretion, shall, be satisfied with the form and substance of the
Disclosure Schedules to this Agreement which shall have been delivered to Buyer
by the Sellers on or prior to the date hereof.


                                       32



Offer of Purchase and Sale


          (q) Net Worth. Prior to giving effect to the transactions contemplated
by this Agreement, excluding the effect of the payment of all fees and expenses
of the Company incurred or to be incurred in connection with the transactions
contemplated hereby (including, without limitation, legal, accounting and
investment banking fees), the Company's net worth shall not be less than
$740,000 (CDN).

          (r) Stockholders' Agreement. Each Stockholder receiving Exchangeable
Shares shall have executed and delivered a Stockholders' Agreement substantially
in the form of Exhibit I attached hereto.

          (s) Good Standing. At or prior to the Closing, Buyer shall have
received from the Company and SPEQ certificates of good standing from the
Director under the CBCA, or an equivalent government agency, of the jurisdiction
of incorporation of each such entity and each other jurisdiction in which the
Company is qualified to do business.

          (t) SPEQ Stockholders. At or prior to the Closing, Buyer shall have
received counterpart signature pages to this Agreement executed by each of the
SPEQ Stockholders.

     6.2 Conditions to Obligations of the Company and the Stockholders. The
obligation of the Company, SPEQ and the Stockholders to consummate this
Agreement and the transactions contemplated hereby is subject to the
fulfillment, prior to or at the Closing, of the following conditions precedent:

          (a) Representations; Warranties; Covenants. Each of the
representations and warranties of Buyer contained in Section 4 shall be true and
correct in all material respects as of the date of this Agreement and as of the
Closing Date as though made on and as of the Closing; and Buyer shall, on or
before the Closing, have performed all of its obligations hereunder which by the
terms hereof are to be performed on or before the Closing provided, however,
that for the purpose of determining satisfaction of this condition, no effect
shall be given to any exception in such representations and warranties relating
to materiality or knowledge of Buyer; each of the conditions specified in this
Section 6.2 shall have been satisfied or waived in writing by the Company, SPEQ,
or the Stockholders, as applicable; and on the Closing Date a certificate to
such effect executed on behalf of Buyer shall be delivered to the Company and
the Stockholders.

          (b) Authorization. The Board of Directors of Buyer shall have duly
adopted resolutions in a form reasonably satisfactory to the Company and shall
have taken all action necessary for the purpose of authorizing Buyer to
consummate the transactions contemplated by this Agreement in accordance with
the terms thereof.

          (c) No Material Adverse Change. There shall have been no material
adverse change in the financial condition, prospects, properties, assets,
liabilities, business or operations of Buyer since the date hereof, whether or
not in the ordinary course of business.


                                       33



Offer of Purchase and Sale



          (d) Approval of the Company's Counsel. All actions, proceedings,
instruments and documents required to carry out this Agreement and the
transactions contemplated hereby and all related legal matters contemplated by
this agreement shall have been approved by McCarthy Tetrault as counsel for the
Company, SPEQ and the Stockholders, and such counsel shall have received on
behalf of the Company, SPEQ and the Stockholders such other certificates,
opinions and documents in form satisfactory to such counsel as the Company may
reasonably require from Buyer to evidence compliance with the terms and
conditions hereof as of the Closing and the correctness as of the Closing of the
representations and warranties of Buyer and the fulfillment of its covenants.

          (e) No Litigation. There shall have been no determination by the
Company or SPEQ acting in good faith, that the consummation of the transactions
contemplated by this Agreement has become inadvisable or impracticable by reason
of the institution or threat by any person or any federal, state or other
governmental authority of material litigation, proceedings or other action
against Buyer, the Company, SPEQ or any Stockholder. The transactions
contemplated hereby shall not be in violation of any law or regulation, and
shall not be subject to any injunction, stay or restraining order.

          (f) Tax Ruling. The Principal Stockholders shall have received
favorable ruling of Revenue Canada responding to that certain ruling request
dated December 18, 1997, filed on behalf of the Principal Stockholders with
Revenue Canada.

          (g) Support Agreement. On the Closing Date, Buyer and Canco shall have
executed and delivered a Support Agreement substantially in the form of Exhibit
J attached hereto.

          (h) Opinion of Counsel. On the Closing Date, the Company shall have
received from counsel for Buyer, an opinion as of said date, substantially in
the form of Exhibit K attached hereto.

          (i) Formation of Canco. On the Closing Date, Buyer shall have formed
under Part 1A of the Quebec Corporations Act a Canadian subsidiary wholly owned
by Buyer in accordance with the terms of the Lasiris Corporate Reorganization.

          (j) Employment Agreements. Buyer shall have caused the Company to
execute and deliver to Alain Beauregard and Luc Many, respectively, an
Employment and Non-Competition Agreement in substantially the form of Exhibit G
attached hereto.

          (k) Certificate from Officers. Buyer shall have delivered to the
Company (i) a certificate of Buyer's President and Chief Financial Officer dated
as of the Closing to the effect that the statements set forth in paragraphs (a)
and (b) above in this Section 6.2 are true and correct.



                                       34



Offer of Purchase and Sale


          (l) Consents. Buyer and/or Canco, as may be appropriate, shall have
made all filings with and notifications to the Quebec Securities Commission
necessary to issue Exchangeable Shares as contemplated by this Agreement and the
Lasiris Corporate Reorganization.

          (m) Release of Personal Guaranties. The personal guaranties issued by
each of the Principal Stockholders and SPEQ to Toronto Dominion Bank on behalf
of the Company shall have been terminated.


SECTION 7. TERMINATION OF AGREEMENT; RIGHTS TO PROCEED.
- -------------------------------------------------------

     7.1 Termination. At any time prior to the Closing, this Agreement may be
terminated as follows:

               (i) by mutual written consent of all of the parties to this
          Agreement;

               (ii) by Buyer, pursuant to written notice by Buyer to Company, if
          any of the conditions set forth in Section 6.1 of this Agreement have
          not been satisfied at or prior to the Closing, or if it has become
          reasonably and objectively certain that any of such conditions, other
          than a condition within the control of Company, will not be satisfied
          at or prior to the Closing, such written notice to set forth such
          conditions which have not been or will not be so satisfied;

               (iii) by the Principal Stockholders, pursuant to written notice
          by the Principal Stockholders to Buyer, if any of the conditions set
          forth in Section 6.2 of this Agreement have not been satisfied at or
          prior to the Closing, or if it has become reasonably and objectively
          certain that any of such conditions, other than a condition within the
          control of Buyer, will not be satisfied at or prior to the Closing,
          such written notice to set forth such conditions which have not been
          or will not be so satisfied.

               (iv) by Buyer or the Principal Stockholders, if the Closing has
          not occurred on or prior to May 29, 1998.

     7.2 Effect of Termination. All obligations of the parties hereunder shall
cease upon any termination pursuant to Section 7.1 and no party shall have any
recourse against any other party hereunder as a result of such termination,
provided, however, that (i) the provisions of this Section 7, Section 10.1 and
Section 10.9 hereof and (ii) the terms and provisions of the Confidentiality
Agreement by and between Buyer and the Company shall survive any termination of
this Agreement.




                                       35



Offer of Purchase and Sale


SECTION 8. RIGHTS AND OBLIGATIONS SUBSEQUENT TO CLOSING.
- --------------------------------------------------------

     8.1 Survival of Warranties. Each of the representations, warranties,
agreements, covenants and obligations herein or in any schedule, exhibit,
certificate or financial statement (other than the financial projections
prepared by the Company and delivered to the Buyer with respect to which (i) the
Company makes no representations or warranties and (ii) the Buyer shall not be
entitled to any indemnification) delivered by any party to the other party
incident to the transactions contemplated hereby are material, shall be deemed
to have been relied upon by the other party and shall survive the Closing
regardless of any investigation and shall not merge in the performance of any
obligation by either party hereto.

     8.2 Access to Shareholder Communications. Subsequent to the Closing, Buyer
shall provide holders of Exchangeable Shares with copies of its Forms 10-KSB,
10-QSB, proxy statements, annual reports, and such other documents that it may
be required to provide to its shareholders from time to time in accordance with
applicable Securities and Exchange Commission rules and regulations.

SECTION 9. INDEMNIFICATION.
- ---------------------------

     9.1 Indemnification by the Stockholders. Subject to the limitations set
forth in Section 9.2 hereof, the Principal Stockholders, jointly but not
solidary, and the SPEQ Stockholders, jointly but not solidary, and all such
parties on behalf of their respective successors, executors, administrators,
estate, heirs and assigns, agree to indemnify and hold Buyer and Canco and
affiliates and persons serving as officers, directors, partners or employees
thereof (individually a "Buyer Indemnified Party" and collectively the "Buyer
Indemnified Parties") harmless from and against any damages, liabilities,
losses, obligations, deficiencies, assessments, taxes, fines, penalties,
actions, suits, proceedings, demands, orders, judgments, costs, and expenses
(including, without limitation, reasonable fees of counsel, accountants and
consultants) of any kind or nature whatsoever (whether or not arising out of
third-party claims and including all amounts paid in investigation, defense or
settlement of the foregoing) (a "Loss" or "Losses") which may be sustained,
suffered or incurred by or made against any of them arising out of or based upon
any of the following matters:

          (a) Fraud, intentional misrepresentation or a deliberate or wilful
breach by the Company, SPEQ or any Stockholder of any of their representations,
warranties or covenants under this Agreement, any other Transaction Document or
in any certificate, schedule or exhibit delivered pursuant hereto;

          (b) Any other breach of any representation, warranty of the Company,
SPEQ or any Stockholder under this Agreement, any other Transaction Document or
in any certificate, schedule or exhibit delivered pursuant hereto; and

          (c) Any other breach of any covenant or agreement of the Company, SPEQ
or any Stockholder under this Agreement, any other Transaction Document or in
any certificate, schedule or exhibit delivered pursuant hereto.


                                       36


Offer of Purchase and Sale



     Claims under clauses (a) through (c) of this Section 9.1 are hereinafter
collectively referred to as "Buyer Indemnifiable Claims."

     9.2 Limitations on Indemnification by the Stockholders. Notwithstanding the
foregoing, the right of Buyer Indemnified Parties to indemnification under
Section 9.1 shall be subject to the following provisions:

          (a) No indemnification shall be payable pursuant to Section 9.1 above
(other than any representation, warranty, covenant or agreement relating to
title, Taxes or undisclosed liabilities or the covenants set forth in Section
3.6 and 3.8 hereof) to any Buyer Indemnified Party, unless the total of all
claims for indemnification pursuant to Section 9.1 shall exceed $100,000 (CDN)
in the aggregate, whereupon all amounts of claim or claims in excess thereof
shall be recoverable in accordance with the terms hereof;

          (b) The indemnification obligations of the Stockholders hereunder with
respect to claims asserted by a Buyer Indemnified Party pursuant to Subsection
9.1(b) shall be limited to an aggregate amount of $2,500,000 (CDN) and all
indemnification obligations of the Stockholders hereunder with respect to claims
asserted by a Buyer Indemnified Party pursuant to Section 9.1 shall be limited
to an aggregate amount of $4,000,000 (CDC);

          (c) No indemnification shall be payable to a Buyer Indemnified Party
with respect to claims asserted pursuant to Subsection 9.1(b) or (c) (other than
any representation, warranty covenant or agreement relating to title, or Taxes
after the date which is eighteen (18) months after the Closing Date of the date
of this Agreement (the "Indemnification Cut-Off Date"); provided, however, that
if on or prior to the Indemnification Cut-Off Date a specific state of facts
shall have become known which may give rise to a claim for indemnification under
Subsection 9.1 and a Buyer Indemnified Party shall have given written notice to
any SPEQ Stockholder Representative of such facts known by such Buyer
Indemnified Party at such time, then the right to indemnification with respect
to such claim shall remain in effect without regard to when such matter shall be
finally determined and disposed of;

          (d) No indemnification shall be payable to a Buyer Indemnified Party
with respect to a claim asserted with respect to any breach of any
representation, warranty, covenant or agreement relating to Taxes after the
expiration of the statute of limitations (if any) applicable to such claim and
the relevant governmental authorities, whether foreign, federal, state,
municipal or local, are no longer able to assess and enforce liability with
respect to such claim against any of Buyer Indemnified Parties;

          (e) The Stockholders shall not have, and shall hereby waive, any right
any such Stockholder otherwise has, or may have, to make one or more claim for
contribution against Buyer, Canco, the Company or SPEQ with respect to any Buyer
Indemnifiable Claims.

     9.3 Indemnification by Buyer. Buyer agrees to indemnify and hold the
Stockholders (individually a "Stockholder Indemnified Party" and collectively
the "Stockholder Indemnified


                                       37



Offer of Purchase and Sale


Parties") harmless from and against any Loss or Losses which may be sustained or
suffered by any of them arising out of or based upon (i) any breach of any
representation, warranty, covenant or agreement made by Buyer in this Agreement
or in any Transaction Document delivered by Buyer hereunder, or by reason of any
claim, action or proceeding asserted or instituted growing out of any matter or
thing constituting such a breach; and (ii) any fraud, intentional
misrepresentation or a deliberate or wilful breach by Buyer of any of their
representations, warranties or covenants under this Agreement, any other
Transaction Document or in any certificate, schedule or exhibit delivered
pursuant hereto.

     9.4 Limitation on Indemnification by Buyer. Notwithstanding the foregoing,
no indemnification shall be payable to the Stockholders with respect to claims
asserted pursuant to Section 9.3 above after the Indemnification Cut-Off Date.
The limitation contained in this Section 9.4 shall not apply to the
indemnification obligations arising under clause (ii) of Section 9.3.

     9.5 Insurance Proceeds. If any claim for which indemnification is sought
hereunder is submitted to and covered by an insurance carrier, the indemnifying
party's or parties' responsibility with respect to such claim shall be net of
any amounts actually paid by such insurance carrier with respect to such insured
claim; provided, however, that such limitation shall only be to the extent that
such amounts are paid without recourse to the indemnified party by way of
deductibles, re-insurance, retro-payments or other risk or loss sharing
arrangement.

     9.6 Notice; Defense of Claims. An indemnified party may make claims for
indemnification hereunder by giving written notice thereof to the indemnifying
party within the period in which indemnification claims can be made hereunder.
If indemnification is sought for a claim or liability asserted by a third party,
the indemnified party shall also give written notice thereof to the indemnifying
party promptly after it receives notice of the claim or liability being
asserted, but the failure to do so shall not relieve the indemnifying party from
any liability except to the extent that it is prejudiced by the failure or delay
in giving such notice. Such notice shall summarize in reasonable detail the
bases for the claim for indemnification, the amount of such claim for
indemnification and, if applicable, any claim or liability being asserted by a
third party. Within 20 days after receiving such notice the indemnifying party
shall give written notice to the indemnified party stating whether it disputes
the claim for indemnification and whether it will defend against any third party
claim or liability at its own cost and expense. If the indemnifying party fails
to give notice that it disputes an indemnification claim within 20 days after
receipt of notice thereof, it shall be deemed to have accepted and agreed to the
claim, which shall become immediately due and payable. The indemnifying party
shall be entitled to direct the defense against a third party claim or liability
with counsel selected by it (subject to the consent of the indemnified party,
which consent shall not be unreasonably withheld) as long as the indemnifying
party is conducting a good faith and diligent defense. The indemnified party
shall at all times have the right to fully participate in the defense of a third
party claim or liability at its own expense directly or through counsel;
provided, however, that if the named parties to the action or proceeding include
both the indemnifying party and the indemnified party and the indemnified party
is advised that representation of both parties by the same counsel would be
inappropriate


                                       38


Offer of Purchase and Sale


under applicable standards of professional conduct, the indemnified party may
engage separate counsel at the expense of the indemnifying party. If no such
notice of intent to dispute and defend a third party claim or liability is given
by the indemnifying party, or if such good faith and diligent defense is not
being or ceases to be conducted by the indemnifying party, the indemnified party
shall have the right, at the expense of the indemnifying party, to undertake the
defense of such claim or liability (with counsel selected by the indemnified
party), and to compromise or settle it, exercising reasonable business judgment.
If the third party claim or liability is one that by its nature cannot be
defended solely by the indemnifying party, then the indemnified party shall make
available such information and assistance as the indemnifying party may
reasonably request and shall cooperate with the indemnifying party in such
defense, at the expense of the indemnifying party.

     9.7 Satisfaction of Stockholder Indemnification Obligations. In furtherance
of, and without limiting, any right to indemnification with respect to any Buyer
Indemnifiable Claim which Buyer or Canco may have against any Stockholder
hereunder, Buyer or Canco shall be obligated to collect amounts payable to such
party pursuant to this Article 9 (i) first, by the assignment and transfer by
Escrow Agent in accordance with the Escrow Agreement of that number of
Exchangeable Shares exchangeable for shares of Buyer Stock having an aggregate
value (based upon a per share value of $4.875 (U.S.)) equal to such amount
payable, (ii) second, by the assignment and transfer of Exchangeable Shares or
shares of Buyer Stock held by one or more Stockholders having an aggregate value
(based upon a per share value of $4.875 (U.S.)) equal to such amount payable and
(iii) third, by the delivery of cash in an amount equal to such amount payable.
The provisions of this Section 9.7 shall not be deemed to limit in any way
Buyer's or Canco's right to collect any amount due under this Section 9 directly
from any one or more Stockholder.

SECTION 10. MISCELLANEOUS.
- --------------------------

     10.1 Fees and Expenses.

          (a) Buyer shall pay its expenses in connection with the transactions
contemplated by this Agreement. Upon the Closing, Buyer shall pay $100,000 (CDN)
of the fees, expenses and disbursements of counsel and one tax adviser incurred
by the Company and/or the Stockholders solely in connection with the transaction
contemplated by this Agreement and the Lasiris Corporate Reorganization;
provided however that if the Closing does not occur on or prior to May 29, 1998
unless the Closing has been postponed in accordance with the terms hereof, each
of the Company, SPEQ, the Stockholders and Buyer shall bear its or their own
expenses and costs in connection with the preparation and negotiation of this
Agreement and the consummation of the transactions contemplated hereby.

          (b) Except as specifically contemplated by Section 10.1(a) above, the
Stockholders will pay all costs incurred by or on behalf of the Stockholders
whether at or subsequent to the Closing, in connection with the transactions
contemplated by this Agreement and the Lasiris Corporate Reorganization,
including without limitation, all transfer taxes and


                                       39



Offer of Purchase and Sale


charges applicable to such transfer, and all costs of obtaining permits,
waivers, registrations or consents with respect to any assets, rights or
contracts of the Company or SPEQ.

     10.2 Governing Law. This Agreement shall be construed under and governed by
the internal laws of the Provinces of Quebec, Canada and the federal laws of
Canada applicable therein without regard to its conflict of laws provisions.

     10.3 Notices. Any notice, request, demand or other communication required
or permitted hereunder shall be in writing and shall be deemed to have been
given if delivered or sent by facsimile transmission, upon receipt, or if sent
by registered or certified mail, upon the sooner of the date on which receipt is
acknowledged or the expiration of three days after deposit in United States or
Canadian, as the case may be, post office facilities properly addressed with
postage prepaid. All notices to a party will be sent to the addresses set forth
below or to such other address or person as such party may designate by notice
to each other party hereunder:

TO BUYER:                         Stocker & Yale, Inc.       
- ---------                         32 Hampshire Road          
                                  Salem, NH  03079           
                                  Attn: Mr. Mark W. Blodgett 

With a copy to:                   Goodwin, Procter & Hoar  LLP
                                  Exchange Place
                                  Boston, MA 02109
                                  Attn: Stuart M. Cable, Esq.

TO COMPANY:                       Lasiris, Inc.
- -----------                       3549, Ashby, Saint-Laurent
                                  Quebec, Canada H4R 2K3
                                  Attn: Alain Beauregard

With a copy to:                   McCarthy Tetrault
                                  Le Complexe St. Amable
                                  1150, Rue Claire Fontaine
                                  7E Etage
                                  Attn: Mario LaCombe, Esq.

TO ANY STOCKHOLDER:               To the address of any SPEQ Stockholder
- -------------------               Representative as set forth on the signature
                                  pages hereto.

Any notice given hereunder may be given on behalf of any party by his counsel or
other authorized representatives.



                                       40



Offer of Purchase and Sale


     10.4 Entire Agreement. This Agreement, including the Schedules and Exhibits
referred to herein and the other writings specifically identified herein or
contemplated hereby, is complete, reflects the entire agreement of the parties
with respect to its subject matter, and supersedes all previous written or oral
negotiations, commitments and writings. No promises, representations,
understandings, warranties and agreements have been made by any of the parties
hereto except as referred to herein or in such Schedules and Exhibits or in such
other writings; and all inducements to the making of this Agreement relied upon
by either party hereto have been expressed herein or in such Schedules or
Exhibits or in such other writings.

     10.5 Assignability; Binding Effect. This Agreement shall only be assignable
by Buyer to a corporation or partnership controlling, controlled by or under
common control with Buyer upon written notice to the Company, SPEQ and the
Stockholders; provided however that such assignment shall not release Buyer with
respect to its obligations to the Stockholders, (i) to provide shares of Buyer
Stock in exchange for Exchangeable Shares as contemplated hereby, (ii) under the
Support Agreement (iii) under Section 9 hereof or (iv) pursuant to the
Confidentiality Agreement. This Agreement may not be assigned by the
Stockholders, SPEQ or the Company without the prior written consent of Buyer.
This Agreement shall be binding upon and enforceable by, and shall inure to the
benefit of, the parties hereto and their respective successors and permitted
assigns.

     10.6 Captions and Gender. The captions in this Agreement are for
convenience only and shall not affect the construction or interpretation of any
term or provision hereof. The use in this Agreement of the masculine pronoun in
reference to a party hereto shall be deemed to include the feminine or neuter,
as the context may require.

     10.7 Execution in Counterparts. For the convenience of the parties and to
facilitate execution, this Agreement may be executed in two or more
counterparts, each of which shall be deemed an original, but all of which shall
constitute one and the same document.

     10.8 Amendments. This Agreement may not be amended or modified, nor may
compliance with any condition or covenant set forth herein be waived, except by
a writing duly and validly executed by each party hereto, or in the case of a
waiver, the party waiving compliance.

     10.9 Publicity and Disclosures. No press releases or public disclosure,
either written or oral, of the transactions contemplated by this Agreement,
shall be made by a party to this Agreement without the prior knowledge and
written consent of Buyer and the Company.

     10.10 Consent to Jurisdiction. Each of the parties hereby consents to
personal jurisdiction, service of process and venue in the courts of the
province of Quebec, Canada for any claim, suit or proceeding arising under this
Agreement, or in the case of a third party claim subject to indemnification
hereunder, in the court where such claim is brought.

     10.11 Specific Performance. The parties agree that it would be difficult to
measure damages which might result from a breach of this Agreement by the
Company, SPEQ or the


                                       41



Offer of Purchase and Sale


Stockholders and that money damages would be an inadequate remedy for such a
breach. Accordingly, if there is a breach or proposed breach of any provision of
this Agreement by the Company, SPEQ or the Stockholders, Buyer shall be
entitled, in addition to any other remedies which it may have, to an injunction
or other appropriate equitable relief to restrain such breach.

     10.12 Attorneys' Fees. In the event of any dispute hereunder between the
parties hereto, the prevailing party in any litigation or arbitration instituted
hereunder shall be entitled to recover from the other its costs and expenses
thereof, including, specifically, its reasonable attorneys' fees.

     10.13 No Third-Party Beneficiaries. This Agreement is intended solely for
the benefit of the parties hereto. Neither this Agreement nor any of the
transactions contemplated hereby shall be deemed to create or enlarge any rights
in any person or entity not a party hereto.

     10.14 Further Assurances. Each of the parties hereto hereby agrees to take
or cause to be taken such further actions, to execute, deliver and file or cause
to be executed delivered and filed, such further documents and instruments, and
to obtain such consents, as may be reasonably requested in order to fully
effectuate the purposes, terms and conditions of this Agreement, whether before,
at or after the Closing.

     10.15 Currency. The parties agree that all references to currency in this
Agreement shall be to Canadian Dollars unless otherwise specified.

     10.16 Preparation of Schedules and Exhibits. It is acknowledged that the
Schedules and Exhibits referred to in this Agreement have not been attached upon
the execution and delivery hereof. The parties agree to negotiate in good faith
mutually acceptable Schedules and Exhibits to be attached to this Agreement
within fifteen (15) days of the date of this Agreement. In the event the parties
acting in good faith are unable to reach agreement with respect to such
Schedules and Exhibits on or prior to such date, either party may terminate this
Agreement in accordance with Section 7.1 above, mutatis mutandis.

     10.17 Language. At the request of the parties, this agreement and all
documents relating thereto have been, and shall be, drawn up in the English
language. A la demande des parties aux presentes, cette convention et tout
dcument s'y rapportant ont ete rediges en langue anglaise.





                  [Remainder of Page Intentionally Left Blank]




                                       42



Offer of Purchase and Sale


     IN WITNESS WHEREOF the parties hereto have caused this Agreement to be
executed as of the date set forth above by their duly authorized
representatives.


                                        BUYER:
                                        ------

                                        STOCKER & YALE, INC.


                                        By:    /s/ Mark W. Blodgett
                                               ---------------------------
                                               Mark W. Blodgett

                                        Title: Chairman and Chief Executive
                                               Officer




                                       S-1




Offer of Purchase and Sale


                                         COMPANY:

                                         LASIRIS, INC.


                                         By:    /s/ Alain Beauregard
                                                ---------------------------
                                         Title: President




                                       S-2




Offer of Purchase and Sale



                                         PRINCIPAL STOCKHOLDERS:


                                         /s/ Alain Beauregard
                                         ---------------------------
                                         Alain Beauregard

                                         /s/ Luc Many
                                         ---------------------------
                                         Luc Many



                                       S-3




Offer of Purchase and Sale


                                         SPEQ STOCKHOLDER
                                         REPRESENTATIVES:
                                         ----------------


                                         /s/ Vincent Gauthier
                                         -----------------------------
                                         Vincent Gauthier
                                         Address:


                                         /s/ Paul-Benoit Tremblay
                                         -----------------------------
                                         Paul-Benoit Tremblay
                                         Address:



                                         SPEQ STOCKHOLDERS:
                                         ------------------


                                         /s/ Alain Battikha
                                         -----------------------------
                                         Alain Battikha


                                         /s/ Pierre Begin
                                         -----------------------------
                                         Pierre Begin


                                         /s/ Pascal Boudreault
                                         -----------------------------
                                         Pascal Boudreault


                                         /s/ Bernard Claveau
                                         -----------------------------
                                         Bernard Claveau


                                         /s/ Suzanne Laurent
                                         -----------------------------
                                         Suzanne Laurent


                                         /s/ Donat Gagnon
                                         -----------------------------
                                         Donat Gagnon


                                         /s/ Claude Gagnon
                                         -----------------------------
                                         Claude Gagnon


                                       S-4




Offer of Purchase and Sale




                                         /s/ Marcel Gauthier
                                         -----------------------------
                                         Marcel Gauthier


                                         /s/ Serge Martin
                                         -----------------------------
                                         Serge Martin


                                         /s/ Gilles Pedneault/Vincent Gauthier
                                         -----------------------------
                                         Gilles Pedneault


                                         /s/ Denis St. Hilaire
                                         -----------------------------
                                         Denis St. Hilaire


                                         /s/ Alice Tremblay
                                         -----------------------------
                                         Alice Tremblay


                                         /s/ Vincent Gauthier
                                         -----------------------------
                                         Vincent Gauthier


                                         /s/ Paul-Benoit Tremblay
                                         -----------------------------
                                         Paul-Benoit Tremblay



                                       S-5