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                              ARTICLES OF AMENDMENT

The articles of the corporation are amended as follows:

         WHEREAS pursuant to Articles of Amendment of the Corporation dated May
12, 1998, the Directors of the Corporation were authorized to fix the number of
Class "B" Special Shares in each series and to determine the rights, privileges,
restrictions and conditions attaching to such number of Class "B" Special Shares
in each series;

         AND WHEREAS the Directors of the Corporation now wish to exercise their
authority conferred on them pursuant to the said Article of Amendment of the
Corporation dated May 12, 1998;

A. The Directors of the Corporation hereby fix and authorize and the Corporation
is hereby authorized to issue an unlimited number of Class "B" Special Shares.

B.       The Directors of the Corporation hereby determine that the rights,
         privileges, restrictions and conditions (collectively, the "Class "B"
         Special Share Provisions") attaching to such Class "B" Special Shares
         of the Corporation shall be as follows:

         The rights, privileges, restrictions and conditions (collectively, the
"Class "B" Special Share Provisions") attaching to the Class "B" Special Shares
are as follows:

1.       INTERPRETATION

1.1 Definitions. Where used in these Class "B" Special Share Provisions, the
following words and phrases shall have the following meanings, respectively:

"Capital Reorganization" shall have the meaning ascribed thereto in subsection
5.7.(4);

"Current Market Price" shall have the meaning ascribed thereto in subsection
5.8.(8);

"dividends in the ordinary course" shall have the meaning ascribed thereto in
subsection 5.7.(1);

"Exercise Number" shall have the meaning ascribed thereto in Section 5.1;

"Extraordinary Dividend" shall have the meaning ascribed thereto in subsection
5.7(1);

"Reorganization" shall have the meaning ascribed thereto in subsection 5.7.(1);

"Restructured Purchase Agreement" shall have the meaning ascribed thereto in
subsection 5.7(5)(a)(vi);


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"Rights Offering" shall have the meaning ascribed thereto in subsection 5.7.(2);

"Rights Period" shall have the meaning ascribed thereto in subsection 5.7.(2);
and 

"Special Distribution" shall have the meaning ascribed thereto in subsection
5.7.(3). 

In addition, there are definitions set forth in subsection 5.7(5)
hereof for the purposes thereof. 

1.2 Gender, etc. Words importing only the singular number include the plural and
vice versa and words importing any gender include all genders.

1.3 Currency. All monetary amounts referred to herein shall be in lawful money
of The United States of America.

1.4 Headings. The division of these Class "B" Special Share Provisions into
sections, subsections, paragraphs, or other subdivisions and the insertion of
headings are for convenience of reference only and shall not affect the
construction or interpretation hereof.

2.       VOTING

2.1 Voting Rights. Except for meetings at which only holders of another
specified class or series of shares of the Corporation are entitled to vote
separately as a class or series, the holders of the Class "B" Special Shares
shall be entitled to receive notice of and to attend all meetings of the
shareholders of the Corporation and shall be entitled at all meetings of the
shareholders of the Corporation to the greater of (a) one vote per share, and
(b) such number of votes per share as shall equal the number of Common Shares
into which each Class "B" Special Share could be converted at the record date
for determination of the shareholders entitled to vote on any matter, or, if no
such record date is established, at the date such vote is taken or any written
consent of shareholders is solicited, such votes to be counted together with all
other shares of the Corporation having general voting power and not separately
as a class. Fractional votes by the holders of Class "B" Special Shares shall
not, however, be permitted and any fractional voting rights shall, after
aggregating all Common Shares into which Class "B" Special Shares held by each
holder could be converted, be rounded to the nearest whole number.

3.       DIVIDENDS

3.1 Discretionary Dividends. The holders of the Class "B" Special Shares shall
be entitled to receive and the Corporation shall pay to them, always in
preference and priority to any payment of dividends on the Common Shares of the
Corporation and any other shares of the Corporation ranking junior to the Class
"B" Special Shares, but rateably with the holders of the Class "A" Special
Shares , as and when declared by the board of directors of the Corporation out
of moneys of the Corporation properly applicable to the payment of dividends,
such dividends as the board of directors of the Corporation may from time to
time declare on the Class "B" Special 


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Shares.

3.2 Restrictions. No dividends shall at any time be declared or paid or set
apart for payment on the Class "A" Special Shares or on the Common Shares or any
other shares of the Corporation ranking junior to the Class "B" Special Shares
unless all dividends up to and including the dividend payable for the last
completed period for which such dividends shall be payable on the Class "B"
Special Shares then issued and outstanding shall have been declared and paid or
set apart for payment at the date of such declaration or payment or setting
apart for payment on the Class "A" Special Shares, the Common Shares or such
other shares of the Corporation ranking junior to the Class "B" Special Shares;
nor shall the Corporation call for redemption, redeem, purchase for
cancellation, acquire for value or reduce or otherwise pay off any of the Class
"B" Special Shares (less than the total amount then outstanding) or any the
Class "A" Special Shares, Common Shares or any other shares of the Corporation
ranking junior to the Class "B" Special Shares unless and until all dividends up
to and including the dividends payable for the last completed period for which
such dividends shall be payable on the Class "B" Special Shares then issued and
outstanding shall have been declared and paid or set apart for payment at the
date of such call for redemption, purchase, acquisition, reduction or other
payment.

4.       DISSOLUTION, LIQUIDATION OR WINDING-UP

4.1 Priority to Entitlement. In the event of the dissolution, liquidation or
winding-up of the Corporation or other distribution of property or assets of the
Corporation among its shareholders for the purpose of winding up its affairs,
the holders of the Class "B" Special Shares shall be entitled to receive from
the property and assets of the Corporation for each Class "B" Special Share held
by them respectively a sum equivalent to the result obtained when the amount in
the stated capital account for the Class "B" Special Shares is divided by the
number of issued and outstanding Class "B" Special Shares, together with a
fixed, preferential, cumulative cash dividend at the annual rate per share of
eight per cent (8%) of the amount equal to the amount recorded in the stated
capital account maintained in respect of the Class "B" Special Shares divided by
the number of Class "B" Special Shares outstanding, which shall accrue and be
cumulative from the date of issue of such Class "B" Special Shares, before any
amount shall be paid or any property or assets of the Corporation distributed to
the holders of the Common Shares or shares of any other class ranking junior to
the Class "B" Special Shares, but on a rateable basis with the holders of the
Class "A" Special Shares for payments of a like nature to which such holders may
be entitled pursuant to the rights and privileges attaching to the Class "A"
Special Shares. After the payment to the holders of the Class "B" Special Shares
and the Class "A" Shares of the amounts so payable to them, the holders of
Common Shares shall be entitled to receive pro rata from the property and assets
of the Corporation an amount equal to the aggregate amount in the stated capital
account for the Common Shares.


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5.       CONVERSION

5.1 Conversion Right. The holders of the Class "B" Special Shares shall have the
right at any time to convert Class "B" Special Shares into Common Shares on the
basis of one Common Share (the "Exercise Number") for each Class "B" Special
Share so converted.

5.2 Manner of Exercise of Conversion Right. The conversion right herein provided
for may be exercised by notice in writing given to the Corporation at its
registered office, accompanied by the certificate or certificates representing
the Class "B" Special Shares in respect of which the holder thereof desires to
exercise such right of conversion. Such notice shall be signed by such holder or
his duly authorized attorney and shall specify the number of Class "B" Special
Shares which the holder desires to have converted. If less than all the Class
"B" Special Shares represented by a certificate or certificates accompanying any
such notice are to be converted, the holder shall be entitled to receive, at the
expense of the Corporation, a new certificate representing the number of Class
"B" Special Shares comprised in the certificate or certificates surrendered as
aforesaid which are not to be converted.

5.3 New Certificates on Conversion. On any conversion of Class "B" Special
Shares, the share certificates for Common Shares of the Corporation resulting
therefrom shall be issued in the name of the registered holder of the Class "B"
Special Shares converted or in such name or names as such registered holder may
direct in writing (either in the notice herein referred to or otherwise). In
either instance the transfer form on the back of the certificates in question
shall be endorsed by the registered holder of the Class "B" Special Shares or
his duly authorized attorney, with signature guaranteed in a manner satisfactory
to the Corporation, provided that the Corporation may waive the necessity for
any such guarantee.

5.4 Deemed Conversion. Subject as hereinafter provided, the right of a holder of
Class "B" Special Shares to convert the same into Common Shares shall be deemed
to have been exercised, and the registered holder of the Class "B" Special
Shares to be so converted (or any person or persons in whose name or names any
such registered holder of Class "B" Special Shares shall have directed
certificates representing Common Shares to be issued) shall be deemed to have
become (and at all times on such date to be) a holder of Common Shares of record
of the Corporation for all purposes on the date of surrender of one or more
certificates duly endorsed representing the Class "B" Special Shares to be
converted.

5.5 Right of Corporation to Convert. On and after either of the following events
having occurred:

(a)      the closing price of the Common Shares (which shall be determined prior
         to any Reorganization (as hereinafter defined)) on Nasdaq, or, if the
         Common Shares are not then quoted on Nasdaq, on such stock exchange on
         which the Common Shares are listed as may be selected by the directors
         for such purpose, for each and every day of any forty (40) consecutive
         trading days was not less than U.S. $11.00; or


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(b)      all of the holders of the Class "B" Special Shares as a group
         beneficially hold securities convertible, directly or indirectly, or
         exercisable into Common Shares, which securities then represent less
         than five per cent (5%) of the then issued and outstanding Common
         Shares on a fully diluted basis;

the Corporation shall have the right at any time and from time to time to
convert any or all of the Class "B" Special Shares then outstanding or issued
thereafter, in accordance with the procedures set forth in Section 5.6, without
the payment of additional consideration by or to the holder of the Class "B"
Special Shares into the number of fully paid and non-assessable Common Shares in
accordance with the Exercise Number.

5.6 Exercise of Corporation's Right to Convert. In the event the Corporation
wishes to exercise its right to convert pursuant to Section 5.5 hereof, it
shall, at least thirty (30) days prior to the date specified for such
conversion, mail to each person who on such date of mailing is a registered
holder of Class "B" Special Shares, a notice in writing of the exercise by the
Corporation of its right to convert Class "B" Special Shares. Such notice shall
be mailed by letter, postage prepaid, addressed to each such holder at his
address as it appears on the records of the Corporation or in the event of the
address of any such holder not so appearing then to the last known address of
such holder; provided, however, that accidental failure to give any such notice
to one or more of such holders shall not affect the validly of such conversion.
Such notice shall set out the total number of Class "B" Special Shares to be
converted, the number of Class "B" Special Shares held by such holder to be
converted, the Exercise Number and the date on which such conversion will take
place. The Class "B" Special Shares specified for conversion in the
aforementioned notice shall be converted automatically without any further
action by the holders of such shares and whether or not the certificates
representing such shares are surrendered to the Corporation or the transfer
agent, and provided further that the Corporation shall not be obligated to issue
certificates evidencing the Common Shares issuable upon such conversion unless
the certificates evidencing such Class "B" Special Shares specified for
conversion in the aforementioned notice are either delivered to the Corporation
or the transfer agent as above provided, or the holder notifies the Corporation
or the transfer agent that such certificates have been lost, stolen or destroyed
and executes an agreement satisfactory to the Corporation to indemnify the
Corporation from any loss incurred by it in connection with such lost, stolen or
destroyed certificates. The Corporation shall, as soon a practicable after such
delivery, or such agreement regarding indemnification in the case of a lost,
stolen or destroyed certificate, issue and deliver at such office to such holder
of Class "B" Special Shares, a certificate of certificates (as requested by such
holder) representing the aggregate number of Common Shares to which the holder
shall be entitled as aforesaid. Such conversion shall be deemed to have been
made on the date specified in the notice of conversion mailed as aforesaid, and
the person or persons entitled to receive the Common Shares issuable upon such
conversion shall be treated for all purposes as the record holder or holders of
such Common Shares on such specified date. If fewer than all of the Class "B"
Special Shares represented by the certificate or certificates are to be
converted, the holder shall be entitled to receive, at the expense of the
Corporation, a new certificate representing the Class "B" Special Shares
represented by the 


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certificate or certificates delivered as aforesaid which are not to be
converted.

5.7 Adjustment of Exercise Number. Subject to the provisions of Sections 5.8 and
5.9, the Exercise Number shall be subject to adjustment from time to time in the
following events and manner:

         (1)      Reorganization. If and whenever at any time after the date
                  hereof the Corporation shall:

                  (a)      issue Common Shares to all or substantially all the
                           holders of the Common Shares as a stock dividend (an
                           "Extraordinary Dividend"), or

                  (b)      make a distribution on its outstanding Common Shares
                           payable in Common Shares or securities exchangeable
                           for or convertible into Common Shares (except by way
                           of a stock dividend representing dividends in the
                           ordinary course (as hereinafter defined)), or

                  (c)      subdivide its outstanding Common Shares into a
                           greater number of shares, or

                  (d)      consolidate its outstanding Common Shares into a
                           smaller number of shares,

                  (any of such events in these clauses (a), (b), (c) and (d)
                  being called a "Reorganization"), then the Exercise Number
                  shall be adjusted, effective immediately after the record date
                  at which the holders of Common Shares are determined for the
                  purpose of the Reorganization, by multiplying the Exercise
                  Number in effect immediately prior to such record date by a
                  fraction, the denominator of which shall be the number of
                  Common Shares outstanding on such record date before giving
                  effect to such Reorganization and the numerator of which shall
                  be the number of Common Shares outstanding immediately after
                  giving effect to such Reorganization (including, in the case
                  where securities exchangeable for or convertible into Common
                  Shares are distributed, the number of Common Shares that would
                  have been outstanding had such securities been exchanged for
                  or converted into Common Shares on such record date). For the
                  purposes of this subsection (1), "dividends in the ordinary
                  course" shall mean cash dividends paid on the Common Shares in
                  any fiscal year of the Corporation provided that where shares
                  in the capital of the Corporation are distributed to a holder
                  of Common Shares in lieu of a cash dividend pursuant to a
                  dividend reinvestment plan, such dividend shall be deemed to
                  be a cash dividend if the value at which such shares are
                  issued in satisfaction of such dividend is not less than 95%
                  of the Current Market Price (as hereinafter defined) of the
                  Common Shares at the time of declaration thereof.


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         (2)      Rights Offering. If and whenever at any time after the date
                  hereof the Corporation shall issue rights, options or warrants
                  to all or substantially all of the holders of the Common
                  Shares under which such holders are entitled, during a period
                  expiring not more than forty-five (45) days after the record
                  date for such issue (the "Rights Period"), to subscribe for or
                  purchase Common Shares or securities exchangeable for or
                  convertible into Common Shares at a price per share to the
                  holder (or, in the case of securities exchangeable for or
                  convertible into Common Shares, at a conversion or exchange
                  price per share at the date of issue of such securities to the
                  holder) of less than 90% of the Current Market Price (as
                  hereinafter defined) for the Common Shares on such record date
                  (any of such events being called a "Rights Offering"), then
                  the Exercise Number shall be adjusted effective immediately
                  after the end of the Rights Period to a number determined by
                  multiplying the Exercise Number in effect immediately prior to
                  the end of the Rights Period by a fraction:

                  (a)      the denominator of which shall be the aggregate of:

                           (i)      the number of Common Shares outstanding as
                                    of the record date for the Rights Offering,
                                    and

                           (ii)     a number determined by dividing (A) either
                                    (I) the product of the number of Common
                                    Shares issued or subscribed for during the
                                    Rights Period upon the exercise of the
                                    rights, warrants or options under the
                                    Rights Offering and the price at which each
                                    such Common Share is offered, or, as the
                                    case may be, (II) the product of the
                                    exchange or conversion price of such
                                    securities offered and the number of Common
                                    Shares for or into which the securities
                                    issued or subscribed for pursuant to the
                                    Rights Offering could have been exchanged or
                                    converted during the Rights Period, by (B)
                                    the Current Market Price (as hereinafter
                                    defined) of the Common Shares as of the
                                    record date for the Rights Offering, and

                  (b)      the numerator of which shall be the number of Common
                           Shares outstanding or the number of Common Shares
                           which would be outstanding if the securities
                           exchangeable or convertible were exchanged or
                           converted into Common Shares during the Rights
                           Period, in both cases after giving effect to the
                           Rights Offering and including the number of Common
                           Shares actually issued or subscribed for during the
                           Rights Period upon exercise of the rights, warrants
                           or options under the Rights Offering.

         (3)      Special Distribution. If and whenever at any time after the
                  date hereof the Corporation shall fix a record date for the
                  issue or the distribution to all or substantially all the
                  holders of the Common Shares of (A) shares of the 


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                  Corporation of any class other than Common Shares, (B) rights,
                  options or warrants to acquire or securities exchangeable for
                  or convertible into Common Shares or shares of the Corporation
                  of any class other than Common Shares or property or other
                  assets of the Corporation, (C) evidences of indebtedness, or
                  (D) any property or other assets and if such issuance or
                  distribution does not constitute a Reorganization or a Rights
                  Offering (any of such non-excluded events being herein called
                  a "Special Distribution"), the Exercise Number shall be
                  adjusted effective immediately after such record date to a
                  number determined by multiplying the Exercise Number in effect
                  on such record date of the Special Distribution by a fraction:

                  (a)      the denominator of which shall be:

                           (i)      the product of the number of Common Shares
                                    outstanding on such record date and the
                                    Current Market Price (as hereinafter
                                    defined) of the Common Shares on such record
                                    date, less

                           (ii)     the fair market value, as determined on a
                                    reasonable basis by the directors of the
                                    Corporation (whose determination shall be
                                    conclusive), to the holder of the Common
                                    Shares of the shares, rights, options,
                                    warrants, evidences of indebtedness or
                                    property or other assets issued or
                                    distributed in the Special Distribution, and

                  (b)      the numerator of which shall be the number of Common
                           Shares outstanding on such record date multiplied by
                           the Current Market Price (as hereinafter defined) of
                           the Common Shares on such record date.

         (4)      Capital Reorganization. If and whenever at any time after the
                  date hereof there shall be a reclassification of the Common
                  Shares at any time outstanding or a change of the Common
                  Shares into other shares or into other securities (other than
                  a Reorganization), or a consolidation, amalgamation or merger
                  of the Corporation with or into any other corporation or other
                  entity (other than a consolidation, amalgamation or merger
                  which does not result in any reclassification of the
                  outstanding Common Shares or a change of the Common Shares
                  into other shares), or a transfer of the undertaking or assets
                  of the Corporation as an entirety or substantially as an
                  entirety to another corporation or other entity (any of such
                  events being herein called a "Capital Reorganization"), any
                  holder of Class "B" Special Shares who exercises his right of
                  conversion after the effective date of such Capital
                  Reorganization shall be entitled to receive, and shall accept
                  in lieu of the number of Common Shares to which such holder
                  was theretofore entitled upon such conversion, the aggregate
                  number of shares, other securities or other property which
                  such holder would have been entitled to receive as a result of
                  such Capital Reorganization if, on the effective date thereof,
                  the holder had been the 


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                  registered holder of the number of Common Shares to which such
                  holder was theretofore entitled upon conversion. If determined
                  appropriate by the directors of the Corporation, appropriate
                  adjustments shall be made as a result of any such Capital
                  Reorganization in the application of the provisions set forth
                  in this Section 5.7 with respect to the rights and interests
                  thereafter of holders of Class "B" Special Shares so that the
                  provisions set forth in this Section 5.7 shall thereafter
                  correspondingly be made applicable as nearly as may reasonably
                  be in relation to any shares, securities or other property
                  thereafter deliverable upon the conversion of a Class "B"
                  Special Share.

         (5)      Adjustments for Sale of Common Shares Below Conversion Price.

                  (a)      Special Definitions. For purposes of this subsection
                           5.7(5), the following definitions shall apply:

                           (i)      "Additional Common Shares" shall mean all
                                    Common Shares issued (or, pursuant to
                                    paragraph 5.7(5)(c)(i) below, deemed to be
                                    issued) by the Corporation after the
                                    Original Issue Date, other than Common
                                    Shares issued or issuable:

                                    (A)     by reason of a dividend, stock
                                            split, split-up or other
                                            distribution on Common Shares issued
                                            (or pursuant to paragraph
                                            5.7(5)(c)(i) below deemed to be
                                            issued) by the Corporation after the
                                            Original Issue Date; or

                                    (B)     pursuant to or upon the exercise of
                                            Rights excluded from the definition
                                            of "Option" in paragraph
                                            5.7(5)(a)(iv);

                           (ii)     "Conversion Price" shall mean the conversion
                                    price of Class "B" Special Shares into
                                    Common Shares in effect immediately prior to
                                    any Reorganization, Rights Offering, Special
                                    Distribution or Capital Reorganization,
                                    which shall be deemed to be U.S.$3.40 at the
                                    date hereof;

                           (iii)    "Convertible Securities" means any evidences
                                    of indebtedness, shares or other securities
                                    directly or indirectly convertible into or
                                    exchangeable for Shares, other than any
                                    Rights excluded from the definition of
                                    "Option" in Subsection 5.7(a)(iv);

                           (iv)     "Option" shall mean Shares or rights,
                                    options or warrants to subscribe for,
                                    purchase or otherwise acquire Shares or
                                    Convertible Securities (collectively,
                                    "Rights"), excluding (A) up to that number
                                    of Rights granted to employees or
                                    consultants of the 


                                     - 10 -


                                    Corporation prior to the Original Issue Date
                                    pursuant to an option plan adopted by the
                                    board of directors of the Corporation
                                    (subject to appropriate adjustment for any
                                    stock dividend, stock split, combination or
                                    other similar recapitalization affecting
                                    such Shares); (B) Rights granted by the
                                    Corporation prior to the Original Issue
                                    Date; (C) any Rights granted by the Company
                                    to the Continuing Investors pursuant to the
                                    Restructured Purchase Agreement, provided
                                    that the terms attaching to such Rights are
                                    not materially less favorable to the Company
                                    than the Restructured Rights Terms; and (D)
                                    for greater certainty, any Common Shares
                                    issued or to be issued by the Company as
                                    part of the consideration paid or payable to
                                    the vendors on the acquisition of any one or
                                    more of those corporations named within the
                                    defined term Pre- Approved Transaction in
                                    the Restructured Purchase Agreement. All
                                    capitalized terms used in this subsection
                                    5.7(5)(a)(iv) and not separately defined
                                    herein have the same meanings, respectively,
                                    as ascribed to them in the Restructured
                                    Purchase Agreement;

                           (v)      "Original Issue Date" shall mean the date of
                                    these Articles of Amendment;

                           (vi)     "Restructured Purchase Agreement" means that
                                    certain Senior Subordinated Unsecured
                                    Convertible Notes Purchase Agreement among
                                    the Company, certain investors and others
                                    entered into on November o, 1998; and

                           (vii)    "Shares" means shares of any class in the
                                    capital of the Company (other than the Class
                                    "A" Special Shares) which may be authorized
                                    for issuance from time to time by the
                                    Company.

                  (b)      No Adjustment of Conversion Price. No adjustment in
                           the number of Common Shares into which the Class "B"
                           Special Shares are convertible shall be made by
                           adjustment in the applicable Conversion Price
                           thereof; (i) unless the consideration per share
                           (determined pursuant to clause 5.7(5)(e)) for an
                           Additional Common Share issued or deemed to be issued
                           by the Corporation is less than the applicable
                           Conversion Price in effect on the date of, and
                           immediately prior to, the issue of such Additional
                           Common Shares, or (ii) if prior to such issuance, the
                           Corporation receives written notice from the
                           representative of holders of at least a majority of
                           the Class "B" Special Shares agreeing that no such
                           adjustment shall be made as the result of the
                           issuance of Additional Common Shares.

                  (c)      Issue of Securities; Deemed Issue of Additional
                           Common Shares.


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                           (i)      If the Corporation at any time or from time
                                    to time after the Original Issue Date shall
                                    issue any Options or Convertible Securities
                                    or shall fix a record date for the
                                    determination of holders of any class of
                                    securities entitled to receive any such
                                    Options or Convertible Securities, then the
                                    maximum number of Common Shares (as set
                                    forth in the instrument relating thereto
                                    without regard to any provision contained
                                    therein for a subsequent adjustment of such
                                    number) issuable upon the exercise of such
                                    Options or, in the case of Convertible
                                    Securities and Options therefor, the
                                    conversion or exchange of such Convertible
                                    Securities, shall be deemed to be Additional
                                    Common Shares issued as of the time of such
                                    issue or, in case such a record date shall
                                    have been fixed, as of the close of business
                                    on such record date, provided that
                                    Additional Common Shares shall not be deemed
                                    to have been issued unless the consideration
                                    per share (determined pursuant to clause
                                    5.7(5)(e) hereof) of such Additional Common
                                    Shares would be less than the applicable
                                    Conversion Price in effect on the date of
                                    and immediately prior to such issue, or such
                                    record date, as the case may be.

                           (ii)     No further adjustment in the Conversion
                                    Price shall be made upon the subsequent
                                    issue of Convertible Securities or Common
                                    Shares upon the exercise of such Options or
                                    conversion or exchange of such Convertible
                                    Securities.

                           (iii)    If such Options or Convertible Securities by
                                    their terms provide, with the passage of
                                    time or otherwise, for any increase in the
                                    consideration payable to the Corporation, or
                                    decrease in the number of Common Shares
                                    issuable, upon the exercise, conversion or
                                    exchange thereof, the Conversion Price
                                    computed upon the original issue thereof (or
                                    upon the occurrence of a record date with
                                    respect thereto), and any subsequent
                                    adjustments based thereon, shall, upon any
                                    such increase or decrease becoming
                                    effective, be recomputed to reflect such
                                    increase or decrease insofar as it affects
                                    such Options or the rights of conversion or
                                    exchange under such Convertible Securities.

                           (iv)     No readjustment pursuant to clause (iii)
                                    above shall have the effect of increasing
                                    the Conversion Price to an amount which
                                    exceeds the lower of (i) the Conversion
                                    Price on the original adjustment date, or
                                    (ii) the Conversion Price that resulted from
                                    any other issuance of Additional Common
                                    Shares between the original adjustment date


                                     - 12 -


                                    and such readjustment date.

                           (v)      Upon the expiration or termination of any
                                    unexercised Option, the Conversion Price
                                    shall not be adjusted and the Additional
                                    Common Shares deemed issued as the result of
                                    the original issue of such Option shall not
                                    be deemed issued for the purposes of any
                                    subsequent adjustment of the Conversion
                                    Price.

                           (vi)     In the event of any change in the number of
                                    Common Shares issuable upon the exercise,
                                    conversion or exchange of any Option or
                                    Convertible Security, including, but not
                                    limited to, a change resulting from the
                                    anti-dilution provisions thereof, the
                                    Conversion Price then in effect shall
                                    forthwith be readjusted to such Conversion
                                    Price as would have been obtained had the
                                    adjustment which was made upon the issuance
                                    of such Option or Convertible Security not
                                    exercised or converted prior to such change
                                    been made upon the basis of such change, but
                                    no further adjustment shall be made for the
                                    actual issuance of Common Shares upon the
                                    exercise or conversion of any such Option or
                                    Convertible Security.

                  (d)      Adjustment of Conversion Price Upon Issuance of
                           Additional Common Shares. In the event the
                           Corporation shall at any time after the Original
                           Issue Date issue Additional Common Shares (including
                           Additional Common Shares deemed to be issued pursuant
                           to clause 5.7(5)(c), but excluding shares issued upon
                           a Reorganization), without consideration or for a
                           consideration per share less than the applicable
                           Conversion Price in effect on the date of and
                           immediately prior to such issue, then, and in such
                           event, the Conversion Price shall be reduced,
                           concurrently with such issue, to a price (calculated
                           to the nearest cent) determined by multiplying the
                           Conversion Price at such time by a fraction, (1) the
                           numerator of which shall be (A) the number of Common
                           Shares outstanding immediately prior to such issue
                           plus (B) the number of Common Shares which the
                           aggregate consideration received by the Corporation
                           for the total number of Additional Common Shares so
                           issued would purchase at such Conversion Price; and
                           (2) the denominator of which shall be the number of
                           Common Shares outstanding immediately prior to such
                           issue plus the number of such Additional Common
                           Shares so issued; provided that, for the purpose of
                           this clause 5.7(5)(d), all Common Shares issuable
                           upon exercise of the warrants held by holders of the
                           Class "B" Special Shares immediately prior to such
                           issue shall be deemed to be outstanding, and
                           immediately after any Additional Common Shares are
                           deemed issued pursuant to clause 5.7(5)(c) (other
                           than shares excluded from the definition of
                           "Additional Common Shares"), such Additional 


                                     - 13 -


                           Common Shares shall be deemed to be outstanding.

                  Notwithstanding the foregoing, the applicable Conversion Price
                  shall not be so reduced at such time if the amount of such
                  reduction would be an amount less than $.01, but any such
                  amount shall be carried forward and reduction with respect
                  thereto made at the time of and together with any subsequent
                  reduction which, together with such amount and any other
                  amount or amounts so carried forward, shall aggregate $.01 or
                  more.

                  (e)      Determination of Consideration. For purposes of this
                           subsection 5.7(5), the consideration received by the
                           Corporation for the issue of any Additional Common
                           Shares shall be computed as follows:

                           (i)      Cash and Property: Such consideration shall:

                                    (A)     insofar as it consists of cash, be
                                            computed at the aggregate of cash
                                            received by the Corporation,
                                            excluding amounts paid or payable
                                            for accrued interest or accrued
                                            dividends;

                                    (B)     insofar as it consists of property
                                            other than cash, be computed at the
                                            fair market value thereof at the
                                            time of such issue, as determined in
                                            good faith by the board of directors
                                            of the Corporation; and

                                    (C)      in the event Additional Common
                                             Shares are issued together with
                                             other shares or securities or other
                                             assets of the Corporation for
                                             consideration which covers both, be
                                             the proportion of such
                                             consideration so received, computed
                                             as provided in clauses (1) and (2)
                                             above, as determined in good faith
                                             by the board of directors of the
                                             Corporation; and

                           (ii)     Options and Convertible Securities. The
                                    consideration per share received by the
                                    Corporation for Additional Common Shares
                                    deemed to have been issued pursuant to
                                    clause 5.7(5)(c) relating to Options and
                                    Convertible Securities shall be determined
                                    by dividing (x) the total amount, if any,
                                    received or receivable by the Corporation as
                                    consideration for the issue of such Options
                                    or Convertible Securities, plus the minimum
                                    aggregate amount of additional consideration
                                    (as set forth in the instruments relating
                                    thereto, without regard to any provision
                                    contained therein for a subsequent
                                    adjustment of such consideration) payable to
                                    the Corporation upon the exercise of such
                                    Options or the conversion or exchange of
                                    such Convertible Securities, or in the case
                                    of Options 


                                     - 14 -


                                    for Common Shares, the exercise of such
                                    Options for Convertible Securities and the
                                    conversion or exchange of such Convertible
                                    Securities, by (y) the maximum number of
                                    Common Shares (as set forth in the
                                    instruments relating thereto, without regard
                                    to any provision contained therein for a
                                    subsequent adjustment of such number)
                                    issuable upon the exercise of such Options
                                    or the conversion or exchange of such
                                    Convertible Securities.

5.8      Rules Regarding Calculation of Adjustment of Exercise Number. For the 
purposes of Section 5.7:

         (1)      The adjustments provided for in Section 5.7 are cumulative and
                  such adjustments shall be made successively whenever an event
                  referred to therein shall occur, subject to the following
                  subsections of this Section 5.8.

         (2)      No adjustment in the Exercise Number shall be required unless
                  it would result in a change of at least one one-hundredth of a
                  share, as presently constituted, provided, however, that any
                  adjustments which, except for the provisions of this
                  subsection (2) of this Section 5.8 would otherwise have been
                  required to be made shall be carried forward and taken into
                  account in any subsequent adjustment.

         (3)      No adjustment in the Exercise Number shall be made in any of
                  the following instances:

                  (a)      in respect of any event described in Section 5.7 if
                           holders of Class "B" Special Shares are entitled to
                           participate in such event on the same terms, mutatis
                           mutandis, as if such holders had converted their
                           Class "B" Special Shares into Common Shares prior to
                           or on the effective date or record date of such
                           event; provided that the foregoing shall not prevent
                           such adjustment to be made in respect of the events
                           referred to in clauses (c) and (d) of subsection (1)
                           of Section 5.7;

                  (b)      in respect of the issue from time to time of Common
                           Shares acquired on the conversion of Class "B"
                           Special Shares which shall be deemed not to be a
                           Reorganization;

                  (c)      in respect of the issue from time to time of
                           dividends which do not constitute Extraordinary
                           Dividends of Common Shares to holders of Common
                           Shares who exercise an option or election to receive
                           substantially equivalent dividends in Common Shares
                           in lieu of receiving a cash dividend, which issue
                           shall be deemed not to be a Reorganization; and


                                     - 15 -


                  (d)      in respect of the issue from time to time of Common
                           Shares pursuant to the exercise of any
                           non-transferable right, option or warrant extended or
                           given from time to time to officers, directors or
                           employees of the Corporation or of a subsidiary of
                           the Corporation to subscribe for and purchase Common
                           Shares or any other shares of the Corporation.

         (4)      If a dispute shall at any time arise with respect to the
                  adjustments provided for in Section 5.7, such dispute shall be
                  conclusively determined by the Corporation's auditors, or if
                  they are unable or unwilling to act, by such other firm of
                  independent chartered accountants as may be selected by
                  resolution of the directors of the Corporation and any such
                  determination shall be binding upon the Corporation, the
                  transfer agent of the Class "B" Special Shares, and the
                  holders of Class "B" Special Shares.

         (5)      If the Corporation shall set a record date to determine the
                  holders of the Common Shares for the purpose of entitling them
                  to receive any dividend or distribution or any subscription or
                  purchase rights and shall, thereafter and before the
                  distribution to such shareholders of any such dividend,
                  distribution or subscription or purchase rights, legally
                  abandon its plan to pay or deliver such dividend, distribution
                  or subscription or purchase rights, then no adjustment in the
                  Exercise Number shall be required by reason of the setting of
                  such record date.

         (6)      In the absence of the corporate statute governing the
                  Corporation or a resolution of the directors of the
                  Corporation fixing a record date for a Reorganization, Rights
                  Offering or Special Distribution, the Corporation shall be
                  deemed to have fixed as the record date therefor the date on
                  which the Reorganization, Rights Offering or Special
                  Distribution is effected.

         (7)      In case the Corporation after the date hereof shall take any
                  action affecting the Common Shares, other than an action
                  described in Section 5.7 which, in the opinion of the
                  directors of the Corporation, would materially affect the
                  rights of the holders Class "B" Special Shares, the Exercise
                  Number shall be adjusted in such manner, if any, and at such
                  time, by action of the directors of the Corporation, in their
                  sole discretion as they may reasonably determine to be
                  equitable to the holders of Class "B" Special Shares in the
                  circumstances. Failure of the taking of action by the
                  directors so as to provide for an adjustment prior to the
                  effective date of any action by the Corporation affecting the
                  Common Shares shall be conclusive evidence that the directors
                  have determined that it is equitable to make no adjustment in
                  the circumstances, although the directors may reconsider their
                  determination in the future.

         (8)      "Current Market Price" of the Common Shares at any date means
                  the price per share equal to the average of the closing prices
                  of the Common Shares on Nasdaq, 


                                     - 16 -


                  or if the Common Shares are not then quoted on Nasdaq, on such
                  stock exchange on which the Common Shares are listed as may be
                  selected by the directors for such purpose or, if the Common
                  Shares are not then listed on any stock exchange, in the
                  over-the-counter market, for the thirty (30) trading days
                  commencing forty-five (45) trading days before such date.

5.9 Postponement of Subscription. In any case where the application of Section
5.7 results in a increase of the Exercise Number taking effect immediately after
the record date for a specific event, if any Class "B" Special Shares are
converted after that record date and prior to completion of the event, the
Corporation may postpone the issuance to the holder of Class "B" Special Shares
of the Common Shares to which he is entitled by reason of the increase of the
Exercise Number, but such Common Shares shall be so issued and delivered to that
holder of Class "B" Special Shares upon completion of that event, with the
number of such Common Shares calculated on the basis of the Exercise Number on
the date of conversion adjusted for completion of that event, and the
Corporation shall deliver to the person or persons in whose name or names the
Common Shares are to be issued an appropriate instrument evidencing his or their
right to receive such Common Shares and the right to receive any dividends or
other distributions which, but for the provisions of this Section 5.9, such
person or persons would have been entitled to receive in respect of such Common
Shares from and after the date of conversion in respect thereof.

5.10     Notice of Adjustment of Exercise Number.

         (1) At least fourteen days prior to the effective date or record date,
as the case may be, of any event which requires or might require adjustment to
the Exercise Number pursuant to Section 5.7, the Corporation shall give notice
to the holders of Class "B" Special Shares in the manner prescribed by Section
5.7, of the particulars of such event and, if determinable, the required
adjustment.

         (2) In case any adjustment for which a notice in subsection (1) of this
Section 5.10 has been given is not then determinable, the Corporation shall
promptly after such adjustment is determinable give notice in the manner
prescribed by Section 5.7 to the holders of Class "B" Special
Shares of the adjustment.

5.11 No Adjustment on Dividends. A holder of a Class "B" Special Share on the
record date for the determination of holders of Class "B" Special Shares
entitled to receive a dividend declared payable on Class "B" Special Shares will
be entitled to such dividend notwithstanding that such share is converted after
such record date and before the payment date of such dividend, and the
registered holder of any Common Shares resulting from any conversion shall be
entitled to rank equally with the registered holders of all other Common Shares
in respect of all dividends declared payable to holders of Common Shares of
record on any date on or after the date of conversion. Subject as aforesaid, no
payment or adjustment will be made on account of any dividend, accrued or
otherwise, on the Class "B" Special Shares converted or the Common 


                                     - 17 -


Shares resulting from any conversion.

5.12 Taxes on Conversion. The issuance of certificates for Common Shares upon
the conversion of Class "B" Special Shares will be made without charge to the
converting holders of Class "B" Special Shares for any fee or tax in respect of
the issuance of such certificates or the Common Shares represented thereby;
provided, however, that the Corporation shall not be required to pay any tax
which may be imposed upon the person or persons to whom such Common Shares are
issued, in respect of the issuance of such Common Shares or the certificates
therefor or which may be payable in respect of any transfer involved in the
issuance and delivery of any such certificate in a name or names other than that
of the holder of the Class "B" Special Shares converted, and the Corporation
shall not be required to issue or deliver such certificate unless the person or
persons requesting the issuance thereof shall have paid to the Corporation the
amount of such tax or shall have established to the satisfaction of the
Corporation that such tax has been paid or that the Corporation has not and will
not have any liability in respect of such tax.

5.13 Reservation of Common Shares. So long as any Class "B" Special Shares are
outstanding and entitled to the right of conversion herein provided, the
Corporation shall at all times reserve and hold out of its unissued Common
Shares a sufficient number of unissued Common Shares to enable all of the Class
"B" Special Shares to be converted upon the basis and upon the terms and
conditions provided in these Class "B" Special Share Provisions.

6.       SPECIFIC MATTERS REQUIRING APPROVAL

6.1 New Shares. The approval of the holders of the Class "B" Special Shares,
given in the manner described in Section 7.1, shall be required for the creation
and issuance of any new shares ranking prior to or on a parity with the Class
"B" Special Shares, and any cumulative dividends shall not be in arrears or any
declared dividends shall not be unpaid on any outstanding Class "B" Special
Shares at the time of the creation and issue of any such shares.

6.2 Amendment of Rights of Class "B" Special Shares. The provisions of clauses
1.1 to 7.1 inclusive may be deleted, amended, modified or varied in whole or in
part by a certificate of amendment issued by the Director appointed under the
Business Corporations Act (Ontario), but only with the prior approval of the
holders of the Class "B" Special Shares given as hereinafter specified in
addition to any other approval required by the Business Corporations Act
(Ontario) or any other statutory provisions of like or similar effect, from time
to time in force.

7.       APPROVAL

7.1 Approval of the Holders of the Class "B" Special Shares. The approval of the
holders of the Class "B" Special Shares with respect to any and all matters
hereinbefore referred to may be given by at least two-thirds of the votes cast
at a meeting of the holders of the Class "B" Special Shares duly called for that
purpose and held upon at least twenty-one (21) days' notice at 


                                     - 18 -


which the holders of a majority of the outstanding Class "B" Special Shares are
present or represented by proxy. If at any such meeting the holders of a
majority of the outstanding Class "B" Special Shares are not present or
represented by proxy within one-half hour after the time appointed for such
meeting, then the meeting shall be adjourned to such date being not less than
thirty (30) days later and to such time and place as may be appointed by the
representative of the holders of the Class "B" Special Shares and not less than
twenty-one (21) days' notice shall be given of such adjourned meeting. At such
adjourned meeting the holders of the Class "B" Special Shares present or
represented by proxy may transact the business for which the meeting was
originally called and a resolution passed thereat by not less than two-thirds of
the votes cast at such adjourned meeting shall constitute the approval of the
holders of the Class "B" Special Shares referred to above. The formalities to be
observed with respect to the giving of notice of any such meeting or adjourned
meeting and the conduct thereof shall be those from time to time prescribed by
the Business Corporations Act (Ontario) and the by-laws of the Corporation with
respect to meetings of shareholders. On every poll taken at every such meeting
or adjourned meeting every holder of Class "B" Special Shares shall be entitled
to one vote in respect of each Class "B" Special Share held.