ST LAURENT PAPERBOARD INC
6-K, 2000-03-06
PAPERBOARD MILLS
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FORM 6-K

                       SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549

                        Report of Foreign Private Issuer
                      Pursuant to Rule 13a-16 or 15d-16 of
                       the Securities Exchange Act of 1934


March 3, 2000


                           ST. LAURENT PAPERBOARD INC.
                 (Translation of registrant's name into English)


                 630 Rene-Levesque Boulevard, West, Suite 3000,
                            Montreal, Quebec H3B 5C7
                    (Address of principal executive offices)


Indicate by check mark whether the registrant  files or will file annual reports
under cover of Form 20-F or Form 40-F.

                        Form 20-F ...... Form 40-F ..X...

Indicate by check mark whether the  registrant  by  furnishing  the  information
contained  in this  Form is  also  thereby  furnishing  the  information  to the
Commission pursuant to Rule 12g3-2(b)under the Securities Exchange Act of 1934.

                               Yes ..... No ...X..


                       INFORMATION FILED WITH THIS REPORT


The following document is filed as an Exhibit to this Report:

Exhibit I --  Material  Change  Report  dated  March  3,  2000,  of St.  Laurent
              Paperboard Inc.



<PAGE>

On March 3, 2000 St. Laurent  Paperboard  Inc.  publicly filed a material change
report.

Exhibit I --  Material  Change  Report,  dated  March 3,  2000,  of St.  Laurent
              Paperboard Inc.



                                 SIGNATURE

Pursuant  to  the  requirements  of  the Securities  Exchange Act of 1934,   the
registrant  has duly  caused  this  report  to be  signed  on its  behalf by the
undersigned, thereunto duly authorized.



Date:  March 3, 2000

                                     ST. LAURENT PAPERBOARD INC.
                                     (Registrant)


                                     By: /s/  Richard Garneau
                                         -------------------------------
                                          Name: Richard Garneau
                                          Title: Senior Vice President and
                                                  Chief Financial Officer
                                                  St. Laurent Paperboard Inc.


<PAGE>



                                                                    EXHIBIT I


                             MATERIAL CHANGE REPORT

1.   REPORTING ISSUER

     St. Laurent Paperboard Inc. ("ST. LAURENT")
     630 Rene-Levesque Blvd. West
     Suite 3000
     Montreal, Quebec

     H3B 5C7

2.   DATE OF MATERIAL CHANGE

     February 23, 2000

3.   PRESS RELEASE

     A press  release  disclosing  the  material  change was  jointly  issued on
     February 23, 2000 by St. Laurent and  Smurfit-Stone  Container  Corporation
     ("SSCC"), copy of which is attached to this material change report.

4.   SUMMARY OF MATERIAL CHANGE

     St. Laurent,  SSCC, Stone Container  Corporation ("STONE") and 3038727 Nova
     Scotia Company ("3038727")  entered into a pre-merger  agreement made as of
     February 23, 2000 (the  "PRE-MERGER  AGREEMENT")  pursuant to which 3038727
     will acquire all of the  outstanding  shares in the capital of St.  Laurent
     pursuant to a plan of arrangement (the "ARRANGEMENT")  under section 192 of
     the CANADA BUSINESS CORPORATIONS ACT ("CBCA"). Pursuant to the Arrangement,
     each holder of common shares of St.  Laurent will receive  US$12.50 in cash
     plus one-half share of SSCC common stock for each share of St. Laurent (the
     "EXCHANGE   CONSIDERATION").   The   Pre-Merger   Agreement  also  contains
     provisions  relating  to the  other  securities  of St.  Laurent.  In  this
     material  change  report,  where the context  permits,  references  to "St.
     Laurent" shall include its material subsidiaries.

     A copy of the Pre-Merger  Agreement  (including  the Schedules  thereto) is
     attached to this material change report.

5.   FULL DESCRIPTION OF MATERIAL CHANGE

     OVERVIEW

     St. Laurent,  SSCC, Stone and 3038727 entered into the Pre-Merger Agreement
     pursuant to which 3038727 will acquire all of the outstanding shares in the
     capital  of St.  Laurent  pursuant  to  the  Arrangement.  Pursuant  to the
     Arrangement,  each holder of St.  Laurent  common  shares  will  receive US
     $12.50 in cash plus  one-half  share of SSCC  common  stock for each common
     share of St. Laurent.

     The  Arrangement  must be approved by the  majority  required by an interim
     order  to be  obtained  from the  Superior  Court of  Quebec,  District  of
     Montreal  pursuant to section  192 of the CBCA,  which is expected to be at
     least  two-thirds of the votes cast at a special  meeting of St.  Laurent's
     securityholders  (the "ST. LAURENT MEETING") (which will include holders of
     St. Laurent common shares and options).  The completion of the  Arrangement
     is conditional upon,  among other things, obtaining  shareholder  approval,
     court approval and certain regulatory approvals.  If the Arrangement is not
     effective  on or prior to  September  30, 2000,  the  Pre-Merger  Agreement
     terminates  unless the parties agree to extend the  termination  date.  The
     Arrangement  will become  effective,  subject to  satisfaction of the above
     conditions,  upon filing of articles of arrangement with the Director under
     the CBCA (the "EFFECTIVE DATE").

     PRE-MERGER AGREEMENT

     The  following  is a  summary  of the  material  terms  of  the  Pre-Merger
     Agreement  and as such  is  qualified  in its  entirety  by the  Pre-Merger
     Agreement.

          DIRECTORS' RECOMMENDATION

     The  disinterested  directors of the board of directors of St. Laurent (the
     "BOARD") determined unanimously that the Arrangement is fair to St. Laurent
     and is in the best interests of St.  Laurent and determined  unanimously to
     recommend  that  the  St.  Laurent  securityholders  vote in  favor  of the
     Arrangement  based on separate  opinions from Bunting  Warburg  Dillon Read
     Inc. and Donaldson,  Lufkin & Jenrette,  financial advisors to St. Laurent,
     to the  effect  that,  as of the  date  of the  Pre-Merger  Agreement,  the
     Exchange  Consideration  is fair from a financial  point of view to the St.
     Laurent securityholders.

          NON-SOLICITATION

     St.  Laurent agreed to not,  directly or indirectly,  engage in soliciting,
     initiating  or  knowingly  encourage  the  initiation  of any  inquiries or
     proposals  regarding certain BONA FIDE acquisition  proposals involving 20%
     or more of St.  Laurent's  total  assets or common  shares  other  than the
     proposed  Arrangement  (an  "ACQUISITION  PROPOSAL").  Although  there  are
     prohibitions on participating in any discussions or negotiations  regarding
     any  Acquisition  Proposal,  withdrawing  or modifying  the approval of the
     Board,  approving or recommending any Acquisition Proposal or entering into
     any agreement,  arrangement or  understanding  relating to any  Acquisition
     Proposal,  the Board retains the right,  prior to the issuance of the Final
     Order in connection  with the Agreement,  to participate in any discussions
     or  negotiations  and  provide  information  (subject  to  entering  into a
     confidentiality  agreement)  to a party  if the  Board  determines  in good
     faith,  after consultation with its financial advisors and outside counsel,
     that  such  third  party's  proposal  is  reasonably  likely to result in a
     "Superior  Proposal",  being a BONA FIDE third party proposal involving 20%
     or more of St.  Laurent's  total  assets or common  shares  which the Board
     determines is reasonably  capable of being  completed and is more favorable
     to  the  St.  Laurent   securityholders   than  the  proposed   transaction
     contemplated in the Pre-Merger  Agreement.  Under the Pre-Merger Agreement,
     St.  Laurent is expressly  required to notify SSCC of all such  Acquisition
     Proposals.

          NOTICE OF SUPERIOR PROPOSAL

     St.  Laurent is required to give notice to SSCC of any  Superior  Proposal.
     Upon receipt of such notice, SSCC will have 5 business days within which to
     offer to amend the Pre-Merger  Agreement such that on the acceptance of the
     offer by St.  Laurent,  the  amendment to the  Pre-Merger  Agreement  would
     result in such Superior Proposal ceasing to be a Superior Proposal. If SSCC
     fails  to do so or if the  Board  determines  that  the  Superior  Proposal
     remains a Superior  Proposal,  St.  Laurent may  terminate  the  Pre-Merger
     Agreement and enter into the Superior  Proposal,  provided it  concurrently
     pays the break fee, if any, referred to below.

     St. Laurent also acknowledges that each successive modification relating to
     an increase of any consideration offered or any other material provision of
     any Acquisition Proposal constitutes a new Acquisition Proposal.

          ACCESS TO INFORMATION

     St. Laurent is required to give access to SSCC to  information  relating to
     St.  Laurent's  business,  property  and  personnel.  Any such  information
     received by SSCC is subject to confidentiality provisions.

          ORDINARY COURSE OF BUSINESS

     In  addition,  St.  Laurent  covenanted  that,  until  the  earlier  of the
     termination  of the  Pre-Merger  Agreement or the  Effective  Date, it will
     carry on its  business  in the  ordinary  and  regular  course and will not
     undertake  certain  unusual  transactions,  (except as  contemplated by the
     Pre-Merger  Agreement or as disclosed to SSCC or with the consent of SSCC).
     Such unusual  transactions  include,  among other  things,  declaration  of
     dividends or any other  distributions  in respect of outstanding  shares of
     St. Laurent, the issuance, pledge, hypothecation,  encumbrance,  allotment,
     sale,  setting aside or  reservation  of shares,  the  acceleration  of any
     invested  options,  the  acquisition  or disposal of material  assets,  the
     incurring  of  material  indebtedness  or  material  increases  in employee
     compensation. St. Laurent also covenanted (i) not to enter or modify in any
     material  respect any contract,  agreement  which would a material  adverse
     effect on St.  Laurent,  (ii) not to settle or compromise any claim brought
     by any present,  former or  purported  holder of any of its  securities  in
     connection with the transactions  contemplated by the Pre-Merger  Agreement
     or the  Arrangement  prior to the Effective Date unless such  settlement or
     compromise  amounts  represent not more that  $1,000,000 in the  aggregate;
     (iii) to keep SSCC fully  informed as to the status of  discussions  or any
     developments  concerning certain environmental matters and not to settle or
     compromise  any  penalty  or  fine  imposed  by a  Governmental  Entity  in
     connection  therewith  except for  settlements or compromises in respect of
     which St. Laurent and its subsidiaries  shall have been fully  indemnified;
     and (iv) not incur or commit capital  expenditures in excess of $12 million
     (over those disclosed to SSCC).

     St. Laurent also agreed that it will, and will cause its  subsidiaries  to,
     do all things necessary to consummate the transactions  contemplated by the
     Pre-Merger  Agreement.  St. Laurent  agreed to provide,  and will cause its
     subsidiaries to provide all necessary cooperation in connection with, among
     other things, a reorganization  of St. Laurent and its subsidiaries made at
     the request of SSCC to satisfy financing requirements and to effect tax and
     other efficiencies provided that (i) prior to any such reorganization, SSCC
     and St. Laurent have agreed upon the terms of an indemnity in favour of St.
     Laurent  and  its   subsidiaries  in  the  event  the  Arrangement  is  not
     consummated  and St.  Laurent  incurs  losses  which  would  not have  been
     incurred but for the reorganization,  and (ii) the reorganization shall not
     be covered by St.  Laurent's  representations  and  warranties or otherwise
     expand St. Laurent's liability under the Pre-Merger Agreement.

          TERMINATION EVENTS

     The termination events, as the case may be, under the Pre-Merger  Agreement
     include the following:

     (i)    the Pre-Merger  Agreement may  be terminated by St. Laurent or SSCC,
            as the case may be,  if certain conditions set out in the Pre-Merger
            Agreement are  not satisfied on  or before the Effective Date of the
            Arrangement;

     (ii)   the Pre-Merger  Agreement may be terminated by the mutual  agreement
            of St.  Laurent and the SSCC (without  further action on the part of
            the St. Laurent  securityholders  if terminated after the holding of
            the St. Laurent Meeting);

     (iii)  the Pre-Merger  Agreement may be terminated by either St. Laurent or
            SSCC, if there shall be passed any law or  regulation  applicable to
            SSCC or St. Laurent,  as the case may be, that makes consummation of
            the transactions contemplated by the Pre-Merger Agreement illegal or
            otherwise prohibited or if any injunction, order or decree enjoining
            SSCC or St. Laurent from consummating the transactions  contemplated
            by the Pre-Merger Agreement is entered and such injunction, order or
            decree shall become final and non-appealable;

     (iv)   the Pre-Merger  Agreement may be terminated by SSCC if (a) the Board
            of St.  Laurent  shall have  failed to  recommend  or  withdrawn  or
            modified  or changed in a manner  adverse  to SSCC its  approval  or
            recommendation  of the  Pre-Merger  Agreement or the  Arrangement or
            shall have recommended an Acquisition  Proposal,  or (b) St. Laurent
            shall have  materially  and wilfully  breached the  non-solicitation
            covenants  contained in the  Pre-Merger  Agreement or if St. Laurent
            has  accepted a Superior  Proposal in  violation  of the  Pre-Merger
            Agreement  or (c)  through  the  fault of St.  Laurent  (whether  by
            commission or omission),  the  Arrangement  is not, at least 14 days
            prior to September  30, 2000,  submitted for the approval of the St.
            Laurent securityholders at the St. Laurent Meeting;

     (v)    the  Pre-Merger  Agreement may be terminated by St. Laurent in order
            to enter  into a  definitive  written  agreement  with  respect to a
            Superior Proposal,  provided St. Laurent has complied with the terms
            of the  Pre-Merger  Agreement and the payment of any fee required to
            be paid;

     (vi)   the Pre-Merger Agreement may be terminated by St. Laurent or SSCC if
            St. Laurent securityholder  approval shall not have been obtained by
            reason of the failure to obtain the required vote at the St. Laurent
            Meeting;

     (vii)  the  Pre-Merger  Agreement  may  be  terminated  by St.  Laurent  if
            Jefferson  Smurfit  Corporation  (U.S.)  or  Stone  shall  not  have
            obtained  on or  before  March  25,  2000 the  consents  from  their
            respective   banking   syndicates   required   to   consummate   the
            transactions contemplated by the Arrangement; or

     (viii) the Pre-Merger Agreement may be terminate if the Effective Date does
            not occur on or prior to September 30, 2000.

            BREAK FEE EVENTS

     The break fee events,  as the case may be, under the  Pre-Merger  Agreement
     include the following. If:

     (i)    St. Laurent  terminates  the Pre-Merger  Agreement in order to enter
            into a  definitive  written  agreement  with  respect  to a Superior
            Proposal;

     (ii)   SSCC terminates the Pre-Merger  Agreement for the following  reasons
            (a) the Board of  Directors  of St.  Laurent  shall  have  failed to
            recommend or withdrawn or modified or changed in a manner adverse to
            SSCC its approval or recommendation  of the Pre-Merger  Agreement or
            the Arrangement or shall have recommenced an Acquisition Proposal or
            (b)  through the fault of St.  Laurent  (whether  by  commission  or
            omission),  the  Arrangement  is  not,  prior  to 14 days  prior  to
            September 30, 2000,  submitted  for the approval of the St.  Laurent
            securityholders at the St. Laurent Meeting; or

     (iii)  either St. Laurent or SSCC shall terminate the Pre-Merger  Agreement
            in circumstances where St. Laurent  securityholder  approval has not
            been obtained at the St. Laurent Meeting and a BONA FIDE Acquisition
            Proposal  has  been  made by any  person  prior  to the St.  Laurent
            Meeting and not withdrawn  more than five (5) days prior to the vote
            of the St.  Laurent  securityholders  and St. Laurent enters into an
            acquisition  agreement with respect to an Acquisition Proposal or an
            Acquisition Proposal is consummated, after the date hereof and prior
            to  the  expiration  of  12  months  following  termination  of  the
            Pre-Merger Agreement,  unless at the time of the St. Laurent Meeting
            a  Specified  SSCC  Event (as  defined  below) has  occurred  and is
            continuing;

     then in any such  case St.  Laurent  shall  pay to SSCC  US$30  million  in
     immediately available funds to an account designated by SSCC.

     A  "Specified  SSCC Event" is defined in the  Pre-Merger  Agreement  as the
     occurrence of a material adverse change with respect to SSCC or a breach of
     the  obligations of SSCC,  Stone or 3038727 under Section  5.3(1)(a),  (b),
     (c), (e) or (f) of the Pre-Merger Agreement.

     Certain  exclusions  from the break fee are also set out in the  Pre-Merger
     Agreement  relating to the  occurrence  of a material  adverse  change with
     respect to SSCC or a breach of the  obligations  by SSCC,  Stone or 3038727
     under Section 5.3(1) (a), (b), (c), (e) or (f) of the Pre-Merger  Agreement
     (a "SPECIFIED SSCC EVENT").

6.   RELIANCE ON CONFIDENTIALITY PROVISIONS OF SECURITIES LEGISLATION

     Not applicable.

7.   OMITTED INFORMATION

     Not applicable.

8.   SENIOR OFFICER

     The senior officer of St. Laurent who is knowledgeable  about this material
change is:

     Richard Garneau

     Senior Vice President and Chief Financial Officer

     Telephone (514) 861-4011

6.   STATEMENT OF SENIOR OFFICER

     The foregoing accurately discloses the material change referred to herein.

     Dated at Montreal, Quebec, this 3rd day of March 2000.


                                    By: /s/  Joseph J. Gurandiano
                                        -------------------------------
                                        Joseph J. Gurandiano
                                        President and Chief Executive Officer

<PAGE>

PRESS RELEASE

For immediate release

                                    Contact:      Timothy McKenna (investors)
                                                  312-580-4637 / 314-746-1254
                                                  Tom Lange (media)
                                                  314-746-1236
                                                  Smurfit-Stone
                                                  www.smurfit-stone.com

                                                  Richard Garneau
                                                  Senior Vice-president and CFO
                                                  514-861-4011 ext 223
                                                  St. Laurent Paperboard
                                                  www.stlaurent.com


                            SMURFIT-STONE TO ACQUIRE

                    ST. LAURENT PAPERBOARD FOR CASH AND STOCK

        Acquisition will create leader in high-impact graphics packaging

CHICAGO AND MONTREAL,  February 23, 2000-- Smurfit-Stone  Container  Corporation
(Smurfit-Stone,  Nasdaq:  SSCC) and St. Laurent  Paperboard Inc., (St.  Laurent,
TSE: SPI, NYSE: SLW) jointly  announced today that  Smurfit-Stone  has agreed to
acquire St. Laurent for about US$1.4 billion consisting of approximately  US$625
million in cash, Smurfit-Stone common stock, and the assumption of St. Laurent's
debt.
         Ray Curran,  president and chief  executive  officer of  Smurfit-Stone,
said, "This transaction has multiple benefits for investors.  It will expand our
capabilities  to  serve  the  fast-growing   market  for  high-impact   graphics
packaging,  and it presents an excellent business and geographic fit. It is also
expected to be immediately accretive to our earnings."

         Dr. Michael W.J.  Smurfit,  who is chairman of Smurfit-Stone  Container
Corporation and chairman and chief executive officer of Jefferson Smurfit Group,
Smurfit-Stone's   largest  shareholder,   said,  "This  acquisition  is  another
important  step in expanding  the presence of  Smurfit-Stone  and the  worldwide
Jefferson Smurfit Group in the North American packaging market."

         The transaction will significantly expand Smurfit-Stone's  capabilities
to produce  specialty  grades of  containerboard,  such as white top linerboard,
coated and bleached linerboard and lightweight medium used in  point-of-purchase
promotional  packaging.  St. Laurent's  corrugated  packaging plants will expand
Smurfit-Stone's  capabilities  to  provide  microflute  and  other  high  impact
graphics  packaging  to  customers   throughout  North  America.  St.  Laurent's
paperboard operations include four containerboard mills with 1.5 million tons of
capacity and 16 packaging plants.

         Under the terms of the  agreement,  holders of St.  Laurent  stock will
receive US$12.50 (Cdn$18.50) in cash plus one-half share of Smurfit-Stone common
stock for each share of St.  Laurent.  In the event that  St-Laurent  receives a
superior  proposal,  Smurfit-Stone  shall have the right to amend its offer.  To
finance the transaction, Smurfit-Stone will raise US$625 million in new debt and
issue approximately 25 million new shares of common stock, increasing the number
of fully diluted shares outstanding to approximately 250 million.  Smurfit-Stone
will also refinance about US$386 million of St. Laurent debt. The transaction is
subject to St. Laurent shareholder approval and various regulatory approvals and
is expected to close in the second quarter.

         "The combination of these packaging  businesses into one North American
unit will generate approximately US$50 million annually in cost savings," Curran
said. "In addition,  by joining  Smurfit-Stone's  containerboard system with St.
Laurent  capabilities we will create  significant new  opportunities to optimize
our containerboard manufacturing costs.

         "St. Laurent has superior capabilities in specialty containerboard such
as white top  linerboard and  lightweight  medium.  By adding these  operations,
Smurfit-Stone  develops an unmatched  ability to serve  customers for microflute
and value graphics packaging and point-of-purchase displays. Finally, St.Laurent
management has done an excellent job in the past twelve months of reducing costs
and  increasing  production  at its white top mills.  We expect to continue with
this progress."

         Jay J. Gurandiano, president and chief executive officer of St. Laurent
Paperboard,   added,   "This   transaction   enhances  our  shareholder   value.
Shareholders  will be able to participate in the many benefits accruing from the
combination  of St.  Laurent's  niche in higher value white top  linerboard  and
microfluting  grades and  Smurfit-Stone's  preeminent  position  as the  largest
container and containerboard producer in North America."

         Smurfit-Stone,  which  was  created  by the  November  1998  merger  of
Jefferson Smurfit Corporation and Stone Container Corporation, is the industry's
leading  manufacturer  of  paper  and  paperboard-based   packaging,   including
containerboard,  corrugated containers, industrial bags, and claycoated recycled
boxboard; and is the world's largest paper recycler. In addition,  Smurfit-Stone
is a leading producer of solid bleached  sulfate,  folding cartons,  paper tubes
and cores,  and  labels.  Net sales in 1999 were  US$7.2  billion.  The  company
employs  approximately 35,000 and operates about 300 facilities  worldwide.  The
company has a production  capacity of six million tons of containerboard and one
million tons of other packaging grades.

         St. Laurent Paperboard is a leading North American  producer,  supplier
and converter of high quality,  value-added  specialty  containerboard  and high
impact  graphics  packaging,  with more than 4,500  employees  serving a diverse
customer base in North  America and selected  international  markets.  Formed in
1994,  the company had sales of US$916  million in 1999. In addition to its four
mills and 16 packaging  plants,  the company  also owns 920,000  acres of forest
land in Quebec and solid wood products operations.

                                     - 30 -

This document contains certain forward-looking  statements within the meaning of
Section  21 E of  the  Securities  Exchange  Act  of  1934,  as  amended,  about
Smurfit-Stone  Container  Corporation.  Although the company  believes  that, in
making  any  such   statements,   its   expectations  are  based  on  reasonable
assumptions,  any such  statement  may be influenced by factors that could cause
actual  outcomes and results to be materially  different  from those  projected.
When used in this  document,  the words  "anticipates,"  "believes,"  "expects,"
"intends,"  and similar  expressions as they relate to  Smurfit-Stone  Container
Corporation  or its  management  are intended to identify  such  forward-looking
statements.  These forward-looking  statements are subject to numerous risks and
uncertainties.  Important  factors  that could  cause  actual  results to differ
materially from those in forward-looking statements, certain of which are beyond
the  control of  Smurfit-Stone  Container  Corporation,  include:  the impact of
general  economic  conditions  in the U.S. and Canada and in other  countries in
which  Smurfit-Stone  Container  Corporation and its  subsidiaries  currently do
business  (including  Asia,  Europe  and  Latin  and  South  America);  industry
conditions,   including   competition  and  product  and  raw  material  prices;
fluctuations  in  exchange  rates  and  currency  values;   capital  expenditure
requirements;  legislative or regulatory  requirements,  particularly concerning
environmental matters;  interest rates; access to capital markets; the timing of
and value received in connection with asset divestitures; and obtaining required
approvals,  if  any,  of  debt  holders.  The  actual  results,  performance  or
achievement by Smurfit-Stone  Container Corporation could differ materially from
those  expressed  in, or  implied  by,  these  forward-looking  statements  and,
accordingly,  no assurances  can be given that any of the events  anticipated by
the forward-looking statements will transpire or occur, or if any of them do so,
what impact they will have on the results of operations and financial  condition
of Smurfit-Stone Container Corporation.

<PAGE>

                       SMURFIT-STONE CONTAINER CORPORATION

                                    as "SSCC"

                                       and

                           STONE CONTAINER CORPORATION

                                   as "STONE"



                                       and


                           3038727 NOVA SCOTIA COMPANY

                                  as "3038727"



                                       and


                           ST. LAURENT PAPERBOARD INC.

                                as "ST. LAURENT"




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


                              PRE-MERGER AGREEMENT

                                February 23, 2000


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




                                STIKEMAN ELLIOTT



<PAGE>


                                       TABLE OF CONTENTS


                                           ARTICLE 1
                                         INTERPRETATION

<TABLE>
<CAPTION>
<S>            <C>                                                                          <C>
Section 1.1    Definitions...................................................................1
Section 1.2    Interpretation Not Affected by Headings, etc.................................10
Section 1.3    Currency.....................................................................10
Section 1.4    Number, etc..................................................................10
Section 1.5    Date For Any Action..........................................................10
Section 1.6    Entire Agreement.............................................................10
Section 1.7    Schedules....................................................................11
Section 1.8    Accounting Matters...........................................................11
Section 1.9    Knowledge....................................................................11

                                           ARTICLE 2
                                        THE ARRANGEMENT

Section 2.1    Implementation Steps by St. Laurent..........................................11
Section 2.2    Interim Order................................................................12
Section 2.3    Articles of Arrangement......................................................13
Section 2.4    Circular.....................................................................14
Section 2.5    Securities Compliance........................................................15
Section 2.6    Preparation of Filings.......................................................15

                                           ARTICLE 3
                                 REPRESENTATIONS AND WARRANTIES

Section 3.1    Representations and Warranties of St. Laurent................................17
Section 3.2    Representations and Warranties of the SSCC Parties...........................39
Section 3.3    Survival.....................................................................45

                                           ARTICLE 4
                                           COVENANTS

Section 4.1    Retention of Goodwill........................................................45
Section 4.2    Material Commitments.........................................................45
Section 4.3    Covenants of St. Laurent.....................................................45
Section 4.4    Covenants of the SSCC Parties................................................51
Section 4.5    Covenants Regarding Non-Solicitation.........................................53
Section 4.6    Notice by St. Laurent of Superior Proposal Determination.....................55
Section 4.7    Access to Information........................................................56
Section 4.8    Closing Matters..............................................................58
Section 4.9    Indemnification..............................................................58
Section 4.10   Rights Plan..................................................................59
Section 4.11   Benefits Continuation, etc...................................................59


<PAGE>

                                           ARTICLE 5
                                           CONDITIONS

Section 5.1    Mutual Conditions Precedent..................................................60
Section 5.2    Additional Conditions Precedent to the Obligations of the SSCC Parties.......61
Section 5.3    Additional Conditions Precedent to the Obligations of St. Laurent............62
Section 5.4    Notice and Cure Provisions...................................................63
Section 5.5    Satisfaction of Conditions...................................................64

                                           ARTICLE 6
                                   AMENDMENT AND TERMINATION

Section 6.1    Amendment....................................................................65
Section 6.2    Mutual Understanding Regarding Amendments....................................65
Section 6.3    Termination..................................................................65
Section 6.4    Break Fee....................................................................67
Section 6.5    Effect of Break Fee Payment..................................................68
Section 6.6    Remedies.....................................................................68

                                           ARTICLE 7
                                            GENERAL

Section 7.1    Notices......................................................................68
Section 7.2    Assignment...................................................................70
Section 7.3    Binding Effect...............................................................70
Section 7.4    Waiver and Modification......................................................70
Section 7.5    No Personal Liability........................................................71
Section 7.6    Further Assurances...........................................................71
Section 7.7    Expenses.....................................................................71
Section 7.8    Consultation.................................................................71
Section 7.9    Governing Laws...............................................................72
Section 7.10   Time of Essence..............................................................72
Section 7.11   Counterparts.................................................................72
Section 7.12   No Third Party Beneficiaries.................................................72
Section 7.13   Language.....................................................................72
</TABLE>

                                           SCHEDULES

         Schedule A - Affiliate's Letter
         Schedule B - Appropriate Regulatory Approvals
         Schedule C - Arrangement Resolution
         Schedule D - Plan of Arrangement




<PAGE>

                              PRE-MERGER AGREEMENT

         MEMORANDUM OF AGREEMENT made as of the 23rd day of February, 2000.

AMONG:

                    SMURFIT-STONE    CONTAINER    CORPORATION
                    a corporation  existing under the laws of the
                    State of Delaware (hereinafter referred to as
                    "SSCC")

                                     - and -

                    STONE CONTAINER CORPORATION
                    a corporation  existing under the laws of the
                    State of Delaware (hereinafter referred to as
                    "STONE")

                                     - and -

                    3038727 NOVA SCOTIA COMPANY
                    an unlimited liability company existing under
                    the  laws  of the  Province  of  Nova  Scotia
                    (hereinafter referred to as "3038727")

                                     - and -

                    ST. LAURENT PAPERBOARD INC.
                    a  corporation  existing  under  the  laws of
                    Canada  (hereinafter   referred  to  as  "ST.
                    LAURENT")

         THIS  AGREEMENT  WITNESSES  THAT  in  consideration  of the  respective
covenants and agreements herein contained, the parties hereto covenant and agree
as follows:

                                   ARTICLE 1
                                 INTERPRETATION

SECTION 1.1       DEFINITIONS.
         In this  Agreement,  unless there is something in the subject matter or
context  inconsistent  therewith,  the following  terms shall have the following
meanings respectively:


<PAGE>

         "1933 ACT" means the UNITED STATES SECURITIES ACT OF 1933, as amended;

         "ACQUISITION PROPOSAL" means any BONA FIDE proposal with respect to any
         merger,  amalgamation,  arrangement,  take-over  bid,  sale  of  assets
         (excluding  inventory  sold in the  ordinary  course  of  business)  or
         otherwise   representing  more  than  20%  of  the  book  value  (on  a
         consolidated  basis)  of St.  Laurent's  total  assets  (or any  lease,
         long-term  supply  agreement  or  other  arrangement  having  the  same
         economic  effect as a sale of assets  (excluding  inventory sold in the
         ordinary course of business) or otherwise representing more than 20% of
         the  book  value  (on a  consolidated  basis)  of St.  Laurent's  total
         assets),  any sale of more than 20% of the St.  Laurent  Common  Shares
         then outstanding or similar  transactions  involving St. Laurent or any
         subsidiary, or a proposal to do so, excluding the Arrangement;

         "AFFECTED EMPLOYEE" has the meaning ascribed thereto in Section 4.11;

         "AFFILIATE"  has the meaning  ascribed  thereto in the  SECURITIES  ACT
         (Quebec), unless otherwise expressly stated herein;

         "AFFILIATE'S  LETTER" means a letter,  to be  substantially in the form
         and content of Schedule A annexed hereto;

         "APPROPRIATE  REGULATORY  APPROVALS"  means those  sanctions,  rulings,
         consents,  orders,  exemptions,  permits and other approvals (including
         the lapse,  without objection,  of a prescribed time under a statute or
         regulation  that  states that a  transaction  may be  implemented  if a
         prescribed  time  lapses  following  the  giving of notice  without  an
         objection being made) of Governmental Entities,  regulatory agencies or
         self-regulatory organizations, as set out in Schedule B annexed hereto;

         "ARRANGEMENT" means an arrangement under Section 192 of the CBCA on the
         terms and subject to the conditions set out in the Plan of Arrangement,
         subject to any amendments or variations thereto made in accordance with
         Section 6.1 hereof or Article 5 of the Plan of  Arrangement  or made at
         the direction of the Court in the Interim Order or the Final Order;

         "ARRANGEMENT  RESOLUTION"  means  the  special  resolution  of the  St.
         Laurent Securityholders, to be substantially in the form and content of
         Schedule C annexed hereto;

         "ARTICLES  OF  ARRANGEMENT"  means the articles of  arrangement  of St.
         Laurent in respect of the Arrangement  that are required by the CBCA to
         be sent to the Director after the Final Order is made;


<PAGE>

         "BUSINESS  DAY" means any day on which  commercial  banks are generally
         open for business in Chicago,  Illinois and Montreal, Quebec other than
         a  Saturday,  a Sunday  or a day  observed  as a  holiday  in  Chicago,
         Illinois under the laws of the State of Illinois or the federal laws of
         the United  States of America or in Montreal,  Quebec under the laws of
         the Province of Quebec or the federal laws of Canada;

         "CBCA" means the CANADA BUSINESS  CORPORATIONS ACT as now in effect and
         as it may be amended from time to time prior to the Effective Date;

         "CIRCULAR" means the notice of the St. Laurent Meeting and accompanying
         management  information circular,  including all appendices thereto, to
         be sent to holders of St. Laurent Common Shares,  St. Laurent  Options,
         St.  Laurent RSUs and St. Laurent  Warrants in connection  with the St.
         Laurent Meeting, as may be amended from time to time;

         "CODE" has the meaning ascribed thereto in Section 3.1(1)(m)(ii);

         "CONFIDENTIALITY  AGREEMENTS" means the  confidentiality and standstill
         letter  agreements dated November 29, 1999 from St. Laurent to SSCC and
         SSCC to St. Laurent, respectively;

         "COURT" means the Superior Court of Quebec, District of Montreal;

         "DIRECTOR" means the Director  appointed pursuant to Section 260 of the
         CBCA;

         "DISSENT  RIGHTS"  means  the  rights  of  dissent  in  respect  of the
         Arrangement described in Section 3.1 of the Plan of Arrangement;

         "DISSENTING  SHAREHOLDER"  has the meaning ascribed thereto in the Plan
         of Arrangement;

         "DROP DEAD DATE" means September 30, 2000, or such later date as may be
         mutually agreed by the parties to this Agreement;

         "EFFECTIVE DATE" means the date shown on the certificate of arrangement
         to be  issued  by the  Director  under  the CBCA  giving  effect to the
         Arrangement provided that such date occurs on or prior to the Drop Dead
         Date;

         "EFFECTIVE  TIME"  has the  meaning  ascribed  thereto  in the  Plan of
         Arrangement;

         "ENVIRONMENTAL   LAWS"  means  all  applicable  Laws  relating  to  the
         protection of the environment and public health and safety;


<PAGE>

         "ENVIRONMENTAL  PERMITS"  has the meaning  ascribed  thereto in Section
         3.1(1)(l)(ii);

         "ERISA" has the meaning ascribed thereto in Section 3.1(1)(n)(i);

         "ERISA   AFFILIATE"  has  the  meaning   ascribed  thereto  in  Section
         3.1(1)(n)(ix);

         "EXCHANGE ACT" means the United States SECURITIES EXCHANGE ACT OF 1934,
         as amended;

         "EXCHANGE  CONSIDERATION"  has the meaning ascribed thereto in the Plan
         of Arrangement;

         "FINAL  ORDER"  means  the  final  order  of the  Court  approving  the
         Arrangement as such order may be amended by the Court at any time prior
         to the  Effective  Date or, if  appealed,  then,  unless such appeal is
         withdrawn or denied, as affirmed;

         "FORMER EMPLOYEES" has the meaning ascribed thereto in Section 4.11;

         "FORM S-8" has the meaning ascribed thereto in Section 2.5(2);

         "GOVERNMENTAL ENTITY" means any (a) multinational, federal, provincial,
         state, regional, municipal, local or other government,  governmental or
         public  department,  central  bank,  court,  tribunal,  arbitral  body,
         commission,  board,  bureau or agency,  domestic  or  foreign,  (b) any
         subdivision,  agent,  commission,  board,  or  authority  of any of the
         foregoing,  or (c) any quasi-  governmental  or private body exercising
         any  regulatory,  expropriation  or taxing  authority  under or for the
         account of any of the foregoing;

         "HAZARDOUS  SUBSTANCE" means any pollutant,  contaminant,  waste of any
         nature,  hazardous  substance,  hazardous  material,  toxic  substance,
         dangerous  substance or dangerous  good as defined or  identified in or
         regulated by any Environmental Law;

         "HOLDERS"  means the holders of St.  Laurent  Common  Shares shown from
         time to time in the register  maintained by or on behalf of St. Laurent
         in respect of the St. Laurent Common Shares;

         "INCLUDING" means including without limitation;

         "INFORMATION" has the meaning ascribed thereto in Section 4.7(2);

         "INTERIM  ORDER" means the interim order of the Court,  as the same may
         be amended,  in respect of the Arrangement,  as contemplated by Section
         2.2;


<PAGE>

         "LAWS" means all statutes, codes, regulations, statutory rules, orders,
         decrees, and terms and conditions of any grant of approval, permission,
         authority or license of any court,  Governmental Entity, statutory body
         (including The Toronto Stock Exchange,  the New York Stock Exchange and
         The Nasdaq Stock  Market) or  self-regulatory  authority,  and the term
         "applicable"  with  respect to such Laws and in the context that refers
         to one or more  Persons,  means that such Laws apply to such  Person or
         Persons or its or their business,  undertaking,  property or securities
         and emanate from a  Governmental  Entity having  jurisdiction  over the
         Person or Persons or its or their  business,  undertaking,  property or
         securities;

         "LIEN" means any mortgage,  hypothec,  lien, security interest,  lease,
         option,  right of third parties or other similar charge or encumbrance,
         including the lien or retained  title of a  conditional  vendor and any
         servitude, easement, right of way or other encumbrance or title to real
         property;

         "MATERIAL ADVERSE CHANGE", when used in connection with the SSCC or St.
         Laurent,  means any change, effect, event or occurrence with respect to
         its   condition   (financial   or   otherwise),   properties,   assets,
         liabilities,  obligations  (whether  absolute,  accrued  conditional or
         otherwise), businesses, operations or results of operations or those of
         its  subsidiaries  that is,  or would  reasonably  be  expected  to be,
         material and adverse to the business, operations or financial condition
         of such party and its subsidiaries taken as a whole;

         "MATERIAL  ADVERSE EFFECT" when used in connection with the SSCC or St.
         Laurent,  means any effect that is, or would  reasonably be expected to
         be,  material and adverse to the  business,  results of  operations  or
         condition  (financial or otherwise) of such party and its  subsidiaries
         taken as a whole;

         "MATERIAL  CONTRACTS"  has the  meaning  ascribed  thereto  in  Section
         3.1(1)(x);

         "MATERIAL  SUBSIDIARY" means each subsidiary of St. Laurent,  the total
         assets of which  constituted  more than ten percent of the consolidated
         assets of St.  Laurent,  the total revenues of which  constituted  more
         than ten percent of the  consolidated  revenues  of St.  Laurent or the
         total operating  income of which  constituted  more than ten percent of
         the consolidated  operating income of St. Laurent,  in each case as set
         out in the financial  statements of St.  Laurent as of and for the year
         ended  December 31, 1998 and including  each  affiliate of St.  Laurent
         that  directly  or  indirectly  holds an equity  interest  in each such
         subsidiary.  Notwithstanding  the  foregoing,  "MATERIAL  SUBSIDIARIES"
         shall  include  such  other  subsidiary  identified  as such in the St.
         Laurent Disclosure Letter;

         "NSCA" means the COMPANIES ACT of Nova Scotia;


<PAGE>

         "OSC" means the Ontario Securities Commission;

         "PERMITTED  LIEN" means any Lien which is  expressly  permitted  by the
         terms of any financing  instrument or security  agreement to which SSCC
         or any of its subsidiaries is a party or to which St. Laurent or any of
         its subsidiaries is a party, as the case may be;

         "PERSON"  includes any individual,  firm,  partnership,  joint venture,
         venture capital fund,  limited liability company,  unlimited  liability
         company, association,  trust, trustee, executor,  administrator,  legal
         personal  representative,  estate, group, body corporate,  corporation,
         unincorporated   association  or  organization,   Governmental  Entity,
         syndicate or other entity, whether or not having legal status;

         "PLAN OF ARRANGEMENT"  means the plan of arrangement  substantially  in
         the form and content of Schedule D annexed hereto and any amendments or
         variations  thereto  made in  accordance  with  Section  6.1  hereof or
         Article 5 of the Plan of  Arrangement  or made at the  direction of the
         Court in the Final Order;

         "PRE-EFFECTIVE  DATE PERIOD"  shall mean the period from and  including
         the date hereof to and including  the  Effective  Time on the Effective
         Date;

         "PUBLICLY DISCLOSED BY ST. LAURENT" means disclosed by St. Laurent in a
         public  filing made by it with the OSC,  SEC and/or QSC from January 1,
         1999 to and including January 31, 2000;

         "PUBLICLY DISCLOSED BY SSCC" means disclosed by SSCC in a public filing
         made by it with the SEC from January 1, 1999 to and  including  January
         31, 2000;

         "QSC" means the Commission des valeurs mobilieres du Quebec;

         "REPLACEMENT  OPTION"  has the  meaning  ascribed  thereto  in  Section
         2.3(1)(b);

         "REPLACEMENT  WARRANT"  has the  meaning  ascribed  thereto  in Section
         2.3(1)(d);

         "REPRESENTATIVES" has the meaning ascribed thereto in Section 4.7(1);

         "SEC" means the United States Securities and Exchange Commission;

         "SEC REPORTS" has the meaning ascribed thereto in Section 3.2(1)(g);


<PAGE>

         "SECURITIES  LEGISLATION"  means the CBCA, the SECURITIES ACT (Quebec),
         the  SECURITIES  ACT (Ontario) and the  equivalent  legislation  in the
         other  provinces of Canada,  the 1933 Act, the Exchange Act, all as now
         enacted or as the same may from time to time be amended,  re-enacted or
         replaced, and the applicable rules,  regulations,  rulings,  orders and
         forms  made or  promulgated  under  such  statutes  and  the  published
         policies of the regulatory authorities  administering such statutes, as
         well as the rules,  regulations,  by-laws  and  policies of The Toronto
         Stock Exchange, the New York Exchange and The Nasdaq Stock Market;

         "SECURITY  PORTION"  has the  meaning  ascribed  thereto in the Plan of
         Arrangement;

         "SPECIFIED  SSCC  EVENT"  means the  occurrence  of a Material  Adverse
         Change  with  respect  to  SSCC,  or a  breach  by a SSCC  Party of its
         obligations  hereunder,  if by reason thereof,  and taking into account
         Section 5.4, St.  Laurent would be entitled to rely on the failure of a
         condition set forth in Section 5.3(1)(a),  Section  5.3(1)(b),  Section
         5.3(1)(c),  Section  5.3(1)(e) or Section  5.3(1)(f) as a reason not to
         complete the transactions contemplated herein;

         "SSCC CLOSING PRICE" means the closing price on The Nasdaq Stock Market
         of SSCC Common  Shares on the day  immediately  preceding the Effective
         Date;

         "SSCC COMMON SHARES" means the shares of common stock in the capital of
         SSCC;

         "SSCC  DISCLOSURE  LETTER"  means that certain  letter dated as of even
         date herewith and delivered by SSCC to St. Laurent;

         "SSCC  MATERIAL  SUBSIDIARY"  means each  subsidiary of SSCC, the total
         assets of which  constituted  more than ten percent of the consolidated
         assets of SSCC, the total revenues of which  constituted  more than ten
         percent of the  consolidated  revenues  of SSCC or the total  operating
         income of which  constituted  more than ten percent of the consolidated
         operating  income  of SSCC,  in each  case as set out in the  financial
         statements  of SSCC for the year ended  December 31, 1998 and including
         each  affiliate  of SSCC that  directly or  indirectly  holds an equity
         interest in each such subsidiary;

         "SSCC  OPTION  SHARES"  has the  meaning  ascribed  thereto  in Section
         2.3(1)(b);

         "SSCC  PARTIES" means SSCC,  Stone and 3038727,  and "SSCC PARTY" means
         any one of them;

         "ST.  LAURENT  COMMON SHARES" means the common shares in the capital of
         St. Laurent;


<PAGE>

         "ST.  LAURENT  DIRECTORS'  STOCK OPTION AND SHARE  PURCHASE PLAN" means
         that  certain  Directors  Stock Option and Share  Purchase  Plan of St.
         Laurent in effect as of the date hereof;

         "ST. LAURENT  DISCLOSURE  LETTER" means that certain letter dated as of
         even date herewith and delivered by St. Laurent to the SSCC Parties;

         "ST.  LAURENT  DOCUMENTS" has the meaning  ascribed  thereto in Section
         3.1(1)(o);

         "ST.  LAURENT EMPLOYEE SHARE PURCHASE PLAN (CANADA)" means the employee
         share  purchase plan  (Canada) of St.  Laurent in effect as of the date
         hereof;

         "ST. LAURENT FINANCIAL  STATEMENTS" has the meaning ascribed thereto in
         Section 3.1(1)(h).

         "ST.  LAURENT  INTELLECTUAL  PROPERTY  RIGHTS" has the meaning ascribed
         thereto in Section 3.1(1)(r);

         "ST. LAURENT  LONG-TERM  INCENTIVE PLAN" means the long-term  incentive
         plan of St. Laurent in effect as of the date hereof;

         "ST.  LAURENT  MANAGERS' SHARE PURCHASE PLAN" means the managers' share
         purchase plan of St. Laurent in effect as of the date hereof;

         "ST.  LAURENT  MANAGERS'  STOCK OPTION PLAN" mean the  managers'  stock
         option plan of St. Laurent in effect as of the date hereof;

         "ST.  LAURENT  MEETING"  means  the  special  meeting  of  St.  Laurent
         Securityholders,  including any adjournment  thereof,  to be called and
         held in accordance with the Interim Order to consider the Arrangement;

         "ST.  LAURENT OPTIONS" means the options to purchase St. Laurent Common
         Shares granted under the St. Laurent  Directors' Stock Option and Share
         Purchase  Plan, the St.  Laurent  Long-Term  Incentive Plan and the St.
         Laurent   Managers'  Stock  Option  Plan  and  being   outstanding  and
         unexercised;

         "ST.  LAURENT  PARTIALLY-OWNED  ENTITY" means Fibre  Innovations,  LLC,
         Grafx   Packaging   Corp.,   Innovative   Packaging  Corp.  and  Oncorr
         Innovations, Inc.;

         "ST. LAURENT  PERFORMANCE  SHARE PLAN" means the performance share plan
         of St. Laurent in effect as of the date hereof;

         "ST.  LAURENT  PLANS"  has the  meaning  ascribed  thereto  in  Section
         3.1(1)(n)(i);


<PAGE>

         "ST.  LAURENT  RIGHTS  PLAN" means the  shareholder  rights plan of St.
         Laurent  approved on February 1, 1995, as amended on May 7, 1998 and on
         February 23, 2000;

         "ST.  LAURENT  RSUS" means the  restricted  share units  granted by St.
         Laurent to certain  officers and managers  pursuant to the St.  Laurent
         Managers' Share Purchase Plan and being outstanding and unexercised;

         "ST. LAURENT  SECURITYHOLDERS"  means the holders of St. Laurent Common
         Shares, St. Laurent Options, St. Laurent RSUs and St. Laurent Warrants,
         collectively;

         "ST. LAURENT SHARE PURCHASE PLANS" means, collectively, the St. Laurent
         Directors'  Stock  Option  and Share  Purchase  Plan,  the St.  Laurent
         Employee  Share  Purchase Plan  (Canada),  the St.  Laurent  subsidiary
         Employee Stock Purchase Plan (U.S.),  the St. Laurent  Managers'  Share
         Purchase Plan and the St. Laurent Performance Share Plan;

         "ST. LAURENT SUBSIDIARY EMPLOYEE STOCK PURCHASE PLAN (U.S.)" means that
         certain  Employee  Stock  Purchase  Plan (U.S.) of a subsidiary  of St.
         Laurent in effect as of the date hereof;

         "ST.  LAURENT  WARRANTS"  means the  380,000  Series A Warrants  of St.
         Laurent  issued on January  29, 1999 to  purchase  380,000 St.  Laurent
         Common  Shares  at  an  initial  exercise  price  of  Canadian  $10.95,
         outstanding as of the date hereof;

         "ST. LAURENT WARRANT INDENTURE" means that certain Indenture made as of
         January 29, 1999 between St. Laurent and Montreal Trust Company;

         "SUBSIDIARY"  means,  with respect to a specified body  corporate,  any
         body  corporate  of  which  more  than  50% of the  outstanding  shares
         ordinarily  entitled  to elect a  majority  of the  board of  directors
         thereof  (whether or not shares of any other class or classes  shall or
         might  be  entitled  to  vote  upon  the  happening  of  any  event  or
         contingency)  are at the time  owned  directly  or  indirectly  by such
         specified  body  corporate  and  shall  include  any  body   corporate,
         partnership,  joint  venture or other  entity  over which it  exercises
         direction or control or which is in a like relation to a subsidiary;

         "SUPERIOR  PROPOSAL"  means any BONA FIDE proposal by a third party to,
         directly or indirectly,  acquire assets  representing  more than 20% of
         the book value (on a consolidated  basis) of St. Laurent's total assets
         or more than 20% of the outstanding St. Laurent Common Shares,  whether
         by way of merger,  amalgamation,  arrangement,  take-over  bid, sale of
         assets or otherwise,  and that in the good faith  determination  of the
         Board of Directors of St.  Laurent after  consultation  with  financial
         advisors  and  outside  counsel  (a) is  reasonably  capable  of  being


<PAGE>

         completed,  taking  into  account  all  legal,  financial,   financing,
         regulatory and other aspects of such proposal and the party making such
         proposal,  and (b) would,  if consummated in accordance with its terms,
         result  in  a  transaction   more   favourable   to  the  St.   Laurent
         Securityholders than the transaction contemplated by this Agreement;

         "TAX" and "TAXES"  have the  respective  meanings  ascribed  thereto in
         Section 3.1(1)(m)(iii); and

         "TAX RETURNS"  means all returns,  declarations,  reports,  information
         returns and statements  required to be filed with any taxing  authority
         relating to Taxes.

SECTION 1.2       INTERPRETATION NOT AFFECTED BY HEADINGS, ETC.

         The  division  of this  Agreement  into  Articles,  Sections  and other
portions and the insertion of headings are for convenience of reference only and
shall not affect the  construction or  interpretation  hereof.  Unless otherwise
indicated,  all  references  to an "ARTICLE"  or "SECTION"  followed by a number
and/or a letter refer to the specified Article or Section of this Agreement. The
terms  "THIS  AGREEMENT",   "HEREOF",   "HEREIN"  and  "HEREUNDER"  and  similar
expressions refer to this Agreement (including the Schedules hereto) and, not to
any  particular  Article,  Section  or other  portion  hereof  and  include  any
agreement or instrument supplementary or ancillary hereto.

SECTION 1.3       CURRENCY.

         Unless otherwise specifically indicated,  all sums of money referred to
in this Agreement are expressed in lawful money of the United States.

SECTION 1.4       NUMBER, ETC.

         Unless the context  otherwise  requires,  words  importing the singular
shall  include the plural and vice versa and words  importing  any gender  shall
include all genders.

SECTION 1.5       DATE FOR ANY ACTION.

         In the event that any date on which any action is  required to be taken
hereunder by any of the parties  hereto is not a Business Day, such action shall
be required to be taken on the next succeeding day which is a Business Day.

SECTION 1.6       ENTIRE AGREEMENT.

         This Agreement and the agreements and other  documents  herein referred
to (including the St. Laurent  Disclosure Letter and the SSCC Disclosure Letter)
constitute the entire  agreement  between the parties  hereto  pertaining to the
terms  of  the   Arrangement   and   supersede   all  other  prior   agreements,
understandings,  negotiations and discussions,  whether oral or written, between


<PAGE>

the parties hereto with respect to the terms of the Arrangement. Notwithstanding
anything to the contrary herein,  the  Confidentiality  Agreements SHALL survive
the execution of this  Agreement,  and in the event of  inconsistencies  between
this  Agreement  and  the   Confidentiality   Agreements,   the  Confidentiality
Agreements  shall  prevail.  However,  SSCC and the SSCC Parties shall not be in
breach  of  the  "standstill"  undertakings  contained  in  the  Confidentiality
Agreements  solely  by  reason  of  the  execution  of  this  Agreement  or  the
consummation  of  the  transactions   contemplated  herein,  which  "standstill"
undertakings  shall  continue  to apply  in the  event  of  termination  of this
Agreement by either SSCC or St. Laurent.

SECTION 1.7       SCHEDULES.

         The following  Schedules  are annexed to this  Agreement and are hereby
incorporated by reference into this Agreement and form part hereof:

         Schedule A - Affiliate's Letter
         Schedule B - Appropriate Regulatory Approvals
         Schedule C - Arrangement Resolution
         Schedule D - Plan of Arrangement

SECTION 1.8       ACCOUNTING MATTERS.

         Unless otherwise stated, all accounting terms used in this Agreement in
respect  of St.  Laurent  shall have the  meanings  attributable  thereto  under
Canadian generally accepted  accounting  principles and all determinations of an
accounting nature in respect of St. Laurent required to be made shall be made in
a manner consistent with Canadian generally accepted  accounting  principles and
past  practice.  Unless  otherwise  stated,  all  accounting  terms used in this
Agreement in respect of SSCC shall have the meanings  attributable thereto under
United States generally accepted accounting principles and all determinations of
an accounting  nature  required to be made in respect of SSCC shall be made in a
manner consistent with United States generally  accepted  accounting  principles
and past practice.

SECTION 1.9       KNOWLEDGE.

         Each  reference  herein  to the  knowledge  of a  party  means,  unless
otherwise specified, the actual knowledge of such party without inquiry.

                                   ARTICLE 2
                                 THE ARRANGEMENT

SECTION 2.1       IMPLEMENTATION STEPS BY ST. LAURENT.

(1)      St.  Laurent  covenants in favour of the SSCC Parties that St.  Laurent
         shall:


<PAGE>

         (a)      subject to Section  2.4,  as soon as  reasonably  practicable,
                  apply  in a manner  acceptable  to the  SSCC  Parties,  acting
                  reasonably,  under  Section  192 of  the  CBCA  for  an  order
                  approving the Interim Order,  and thereafter  proceed with and
                  diligently seek the Arrangement;

         (b)      subject  to  Section  2.4,  convene  and hold the St.  Laurent
                  Meeting  for  the  purpose  of  considering   the  Arrangement
                  Resolution (and for any other proper purpose as may be set out
                  in the notice for such meeting);

         (c)      subject  to  the  terms  of  this  Agreement,  include  in the
                  Circular the  unanimous  recommendation  of the  disinterested
                  directors of St. Laurent that St. Laurent Securityholders vote
                  in favour of the Arrangement Resolution;

         (d)      subject  to the  terms of this  Agreement  and  obtaining  the
                  approvals as are required by the Interim  Order,  proceed with
                  and  diligently  pursue the  application  to the Court for the
                  Final Order; and

         (e)      subject to the terms of this Agreement and obtaining the Final
                  Order and the  satisfaction or waiver of the other  conditions
                  herein  contained  in  favour  of  each  party,  send  to  the
                  Director,  for  endorsement  and filing by the  Director,  the
                  Articles of  Arrangement  and such other  documents  as may be
                  required in connection therewith under the CBCA to give effect
                  to the Arrangement.

SECTION 2.2       INTERIM ORDER.

(1)      The  notice  of  motion  for the  application  referred  to in  Section
         2.1(1)(a) shall request that the Interim Order provide:

         (a)      for the class of Persons to whom  notice is to be  provided in
                  respect of the Arrangement and the St. Laurent Meeting and for
                  the manner in which such notice is to be provided;

         (b)      that the  requisite  approval for the  Arrangement  Resolution
                  shall  be  662/3%  of  the  votes  cast  on  the   Arrangement
                  Resolution by St. Laurent Securityholders present in person or
                  by proxy at the St. Laurent  Meeting (such that each holder of
                  St. Laurent Common Shares is entitled to one vote for each St.
                  Laurent Common Share held,  each holder of St. Laurent Options
                  is entitled to one vote for each St. Laurent Common Share such
                  holder  would have  received  on a valid  exercise of such St.
                  Laurent  Options,  each holder of St. Laurent RSUs is entitled
                  to one vote for each St.  Laurent  Common  Share  such  holder
                  would have  received on vesting of such St.  Laurent  RSUs and
                  each  holder of St.  Laurent  Warrants is entitled to one vote
                  for each St.  Laurent  Common  Share  such  holder  would have
                  received on a valid exercise of such St. Laurent Warrants;


<PAGE>

         (c)      that,  in all other  respects,  the  terms,  restrictions  and
                  conditions  of  the  by-laws  and  articles  of  St.  Laurent,
                  including  quorum  requirements  and all other matters,  shall
                  apply in respect of the St. Laurent Meeting;

         (d)      for the grant of the Dissent Rights; and

         (e)      for the notice requirements respecting the presentation of the
                  application to the Court for a Final Order.

SECTION 2.3       ARTICLES OF ARRANGEMENT.

(1)      The  Articles  of  Arrangement  shall,  with such other  matters as are
         necessary  to  effect  the  Arrangement,  and  all  as  subject  to the
         provisions  of  the  Plan  of  Arrangement,  provide  substantially  as
         follows:

         (a)      each  outstanding St. Laurent Common Share that is not held by
                  a  holder  who  has  exercised  its  Dissent   Rights  and  is
                  ultimately  entitled to be paid the fair value of St.  Laurent
                  Common  Shares (other than St.  Laurent  Common Shares held by
                  any SSCC Party or any affiliate thereof),  will be transferred
                  by the holder  thereof to 3038727 in exchange for the Exchange
                  Consideration, and the name of each such holder of St. Laurent
                  Common  Shares will be removed from the register of holders of
                  St. Laurent Common Shares and added to the register of holders
                  of SSCC Common  Shares,  and  3038727  will be recorded as the
                  registered  holder  of  such  St.  Laurent  Common  Shares  so
                  exchanged  and will be deemed  to be the legal and  beneficial
                  owner thereof;

         (b)      each St.  Laurent  Option shall be exchanged  for an option (a
                  "REPLACEMENT  OPTION") to purchase  that number of SSCC Common
                  Shares equal to the sum of (i) the Security  Portion TIMES the
                  number of St. Laurent Common Shares subject to the St. Laurent
                  Option;  PLUS (ii) the quotient of (A) $12.50 TIMES the number
                  of St.  Laurent  Common  Shares  subject  to the  St.  Laurent
                  Option,  DIVIDED BY (B) the SSCC Closing  Price ("SSCC  OPTION
                  SHARES");  the  exercise  price per SSCC Common Share for each
                  Replacement  Option  shall be the quotient of (x) an aggregate
                  amount  equal  to the  number  of St.  Laurent  Common  Shares
                  subject  to  the  St.  Laurent   Option   exchanged  for  such
                  Replacement  Option TIMES the original  exercise price per St.
                  Laurent  Common Share  pursuant to such St.  Laurent Option at
                  the option of the holder (i)  converted  into its U.S.  dollar
                  equivalent  based on the noon  spot  exchange  rate on the day
                  immediately  preceding the Effective Date reported by the Bank
                  of Canada for Canadian  dollars  expressed  in US dollars,  or
                  (ii) expressed in Canadian  dollars,  the whole DIVIDED BY (y)
                  the SSCC Option Shares subject to such Replacement Option;


<PAGE>

         (c)      each St.  Laurent  RSU shall be fully  vested and  entitle its
                  holder to receive at the Effective  Time, with respect to each
                  St.  Laurent Common Share subject to such St. Laurent RSU, the
                  Exchange Consideration; and

         (d)      each St.  Laurent  Warrant will be exchanged  for a warrant (a
                  "REPLACEMENT WARRANT");  each Replacement Warrant will entitle
                  the holder  thereof,  upon the  exercise  of each  Replacement
                  Warrant and payment of the  Exercise  Price (as defined in the
                  St.  Laurent  Warrant  Indenture),  to  receive  the  Exchange
                  Consideration.  Except as set out in the  preceding  sentence,
                  the term to expiry and all other terms and  conditions of each
                  Replacement  Warrant  will  be  unchanged  from  those  of the
                  relevant  St.  Laurent  Warrant and any  document or agreement
                  previously  evidencing a St. Laurent  Warrant will  thereafter
                  evidence and be deemed to evidence such Replacement Warrant.

(2)      The parties  understand and agree that the Exchange  Consideration  has
         been  calculated  based upon the  accuracy of the  representations  and
         warranties  set forth in Section  3.1(1)(c)  and that, in the event the
         number of outstanding  St. Laurent Common Shares as of January 31, 2000
         or the number of St. Laurent  Common Shares  issuable upon the exercise
         of, or subject to, options or other agreements  exceeds or is less than
         the amounts specifically set forth in the St. Laurent Disclosure Letter
         (including as a result of any stock split,  reverse stock split,  stock
         dividend,   including  any  dividend  or   distribution  of  securities
         convertible  into capital  stock or capital  stock  equivalents  of St.
         Laurent,  recapitalization,  or other like change  occurring  after the
         date  of  this  Agreement),   the  Exchange   Consideration   shall  be
         appropriately  adjusted  upward or  downward,  as the case may be.  The
         provisions  of this  Section  2.3(2)  shall  not,  however,  affect the
         representations and warranties set forth in Section 3.1(1)(c).

SECTION 2.4       CIRCULAR.

         As promptly as  practicable  after the  execution  and delivery of this
Agreement,  SSCC and St.  Laurent shall  prepare the Circular  together with any
other documents required by Securities Legislation, other applicable Laws or the
Interim Order in connection with the Arrangement, and as promptly as practicable
after the date of  execution of this  Agreement  but in any event not later than
August 18, 2000,  St.  Laurent shall cause the Circular and other  documentation


<PAGE>

required in connection with the St. Laurent Meeting to be sent to each holder of
St. Laurent Common Shares, St. Laurent Options, St. Laurent RSUs and St. Laurent
Warrants  and  filed as  required  by the  Interim  Order and  applicable  Laws,
provided that the SSCC Parties and St. Laurent shall be reasonably satisfied, at
the  time  the  Circular  is  sent  to St.  Laurent  Securityholders,  that  the
conditions referred to in Article 5 can be satisfied.

SECTION 2.5       SECURITIES COMPLIANCE.

(1)      SSCC shall use all  reasonable  best  efforts  to obtain,  prior to the
         Effective  Time,  all  orders  required  from the  applicable  Canadian
         securities  authorities  to permit the issuance and first resale of (a)
         the SSCC Common Shares issued pursuant to the Arrangement,  and (b) the
         SSCC Common  Shares  issued from time to time upon the  exercise of the
         Replacement Options and the Replacement  Warrants, in each case without
         qualification  with  or  approval  of or the  filing  of any  document,
         including  any  prospectus  or similar  document,  or the taking of any
         proceeding  with,  or the  obtaining  of any further  order,  ruling or
         consent from, any Governmental Entity or regulatory authority under any
         Canadian federal, provincial or territorial securities or other Laws or
         pursuant  to the  rules and  regulations  of any  regulatory  authority
         administering   such  Laws,  or  the  fulfilment  of  any  other  legal
         requirement in any such jurisdiction  (other than, with respect to such
         first resales, any restrictions on transfer by reason of a holder being
         a "CONTROL  PERSON" of any SSCC Party or St.  Laurent  for  purposes of
         Canadian federal, provincial or territorial Securities Legislation).

(2)      As promptly as practicable  after the Effective Date, SSCC shall file a
         registration  statement  on Form S-8 (or other  applicable  form)  (the
         "FORM S-8"), and take such actions as necessary to keep the information
         therein  current from time to time, in order to register under the 1933
         Act those SSCC  Common  Shares to be issued from time to time after the
         Effective Time upon the exercise of the Replacement Options.

SECTION 2.6       PREPARATION OF FILINGS.

(1)      Each of the SSCC Parties and St. Laurent shall  cooperate and use their
         reasonable best efforts in:

         (a)      the  preparation  and filing of any application for the orders
                  and the  preparation of any required  registration  statements
                  and  any  other  documents  reasonably  deemed  by SSCC or St.
                  Laurent  to  be  necessary  to  discharge   their   respective
                  obligations   under  United   States  and  Canadian   federal,
                  provincial,  territorial  or state  Securities  Legislation in
                  connection   with  the   Arrangement   and  the   transactions
                  contemplated hereby;


<PAGE>

         (b)      the  taking of all such  action as may be  required  under any
                  applicable  United  States and Canadian  federal,  provincial,
                  territorial or state Securities  Legislation  (including "blue
                  sky laws") in connection  with the issuance of the SSCC Common
                  Shares in connection  with the  Arrangement or the exercise of
                  the  Replacement   Options  and  the   Replacement   Warrants;
                  provided,  however,  that with  respect to the  United  States
                  "blue sky" and  Canadian  provincial  qualifications,  neither
                  SSCC nor St.  Laurent shall be required to register or qualify
                  as a foreign  corporation  or to take any  action  that  would
                  subject it to service  of  process in any  jurisdiction  where
                  such  entity is not now so  subject,  except as to matters and
                  transactions  arising  solely  from the  offer and sale of the
                  SSCC Common Shares; and

         (c)      the  taking of all such  action as may be  required  under the
                  CBCA in connection with the transactions  contemplated by this
                  Agreement and the Plan of Arrangement.

(2)      Each of SSCC  and St.  Laurent  shall  furnish  to the  other  all such
         information concerning it and its shareholders as may be required (and,
         in the case of its shareholders,  available to it) for the effectuation
         of the  actions  described  in  Section  2.4  and  Section  2.5 and the
         foregoing  provisions  of this  Section  2.6 and the  obtention  of all
         Appropriate   Regulatory   Approvals,   and  each   covenants  that  no
         information   furnished  by  it  (to  its  knowledge  in  the  case  of
         information  concerning  its  shareholders)  in  connection  with  such
         actions  or  otherwise  in  connection  with  the  consummation  of the
         Arrangement and the other  transactions  contemplated by this Agreement
         will contain any untrue statement of a material fact or omit to state a
         material  fact  required to be stated in any such document or necessary
         in order  to make  any  information  so  furnished  for use in any such
         document not misleading in the light of the  circumstances  in which it
         is furnished.

(3)      SSCC and St.  Laurent  shall each  promptly  notify the other if at any
         time  before or after the  Effective  Time it  becomes  aware  that the
         Circular or an  application  for an order or a  registration  statement
         described in Section 2.5  contains  any untrue  statement of a material
         fact or omits to state a material fact required to be stated therein or
         necessary to make the  statements  contained  therein not misleading in
         light of the  circumstances  in which they are made, or that  otherwise
         requires an amendment or supplement to the Circular or such application
         or  registration  statement.  In any such event,  SSCC and St.  Laurent
         shall  cooperate in the preparation of a supplement or amendment to the
         Circular,  application for an order or registration  statement, or such
         other  document,  as required and as the case may be, and, if required,
         shall cause the same to be distributed to  shareholders  of SSCC or St.
         Laurent   and/or   filed  with  the  relevant   securities   regulatory
         authorities.


<PAGE>

(4)      St.  Laurent shall use its  reasonable  best efforts to ensure that the
         Circular  complies with all applicable Laws and,  without  limiting the
         generality  of the  foregoing,  that the Circular  does 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
         contained therein not misleading in light of the circumstances in which
         they are made (other than with respect to any  information  relating to
         and  provided  by the SSCC  Parties  or any third  party that is not an
         affiliate  of St.  Laurent).  Without  limiting the  generality  of the
         foregoing,  St. Laurent shall use its reasonable best efforts to ensure
         that the Circular  provides  holders of St.  Laurent Common Shares with
         information  in  sufficient  detail to permit  them to form a  reasoned
         judgment  concerning  the  matters to be placed  before them at the St.
         Laurent  Meeting and SSCC shall  provide all  information  regarding it
         necessary to do so.

(5)      SSCC shall  ensure  that the Form S-8  contemplated  in Section  2.5(2)
         complies with all applicable Laws and,  without limiting the generality
         of the  foregoing,  that such  document  does 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  contained
         therein not misleading in light of the  circumstances in which they are
         made  (other  than with  respect  to any  information  relating  to and
         provided by St.  Laurent or any third party that is not an affiliate of
         SSCC) and St.  Laurent  shall  provide  all  information  regarding  it
         necessary to do so.

                                    ARTICLE 3
                         REPRESENTATIONS AND WARRANTIES

SECTION 3.1       REPRESENTATIONS AND WARRANTIES OF ST. LAURENT.

(1)      St.  Laurent  represents  and  warrants  to and in  favour  of the SSCC
         Parties as follows and  acknowledges  that the SSCC Parties are relying
         upon such representations and warranties in connection with the matters
         contemplated  by this  Agreement  that,  except as set forth in the St.
         Laurent Disclosure Letter:

         (a)      ORGANIZATION.

                  (i)      Each of St. Laurent and the Material Subsidiaries has
                           been duly incorporated or formed under all applicable
                           Laws,  is  validly  subsisting  and in good  standing
                           under   the   laws   of  the   jurisdiction   of  its
                           incorporation  or organization and has full corporate
                           or  legal  power  to  own,   lease  and  operate  its
                           properties  and conduct its  businesses  as currently
                           owned and conducted.  Each of the St. Laurent and the
                           Material  Subsidiaries  is duly qualified or licensed
                           as foreign  corporations  to do  business,  and is in


<PAGE>

                           good  standing,   in  each  jurisdiction   where  the
                           character of the properties owned, leased or operated
                           by it or  the  nature  of  its  business  makes  such
                           qualification or licensing necessary, except for such
                           failures to be so  qualified  or licensed and in good
                           standing  that  would  not,  individually  or in  the
                           aggregate, have a Material Adverse Effect. All of the
                           outstanding  shares and other ownership  interests of
                           the Material  Subsidiaries which are held directly or
                           indirectly by St. Laurent are validly  issued,  fully
                           paid and non-assessable and all such shares and other
                           ownership  interests are owned directly or indirectly
                           by St. Laurent,  free and clear of all Liens,  except
                           pursuant to  restrictions  on transfer  contained  in
                           constating   documents.   There  are  no  outstanding
                           options,  rights,  entitlements,   understandings  or
                           commitments  (contingent or otherwise)  regarding the
                           right to acquire any such  shares or other  ownership
                           interests  in any of the Material  Subsidiaries.  St.
                           Laurent has disclosed in the St.  Laurent  Disclosure
                           Letter the names and  jurisdictions  of incorporation
                           of each of the Material Subsidiaries.

                  (ii)     Neither St.  Laurent nor any Material  Subsidiary has
                           any  minority  interest in any other  corporation  or
                           entity.

         (b)      CERTIFICATE  OF  INCORPORATION  AND BY-LAWS.  St.  Laurent has
                  heretofore  made available to SSCC a complete and correct copy
                  of  the  certificate  of  incorporation  and  the  by-laws  or
                  equivalent  organizational documents, each as amended to date,
                  of St. Laurent and each Material Subsidiary. Such certificates
                  of  incorporation,   by-laws  and  equivalent   organizational
                  documents are in full force and effect.

         (c)      CAPITALIZATION. The authorized capital of St. Laurent consists
                  of an unlimited  number of St.  Laurent  Common  Shares and an
                  unlimited  number of Class A  preferred  shares,  issuable  in
                  series.  The St. Laurent  Disclosure  Letter sets forth, as at
                  January 31,  2000,  the number of St.  Laurent  Common  Shares
                  issued  and  outstanding  and the  number of  outstanding  St.
                  Laurent  Options,  St. Laurent RSUs and St. Laurent  Warrants.
                  There are no options, warrants, conversion privileges or other
                  rights, agreements,  arrangements or commitments (pre-emptive,
                  contingent  or  otherwise)   obligating  St.  Laurent  or  any
                  Material Subsidiary to issue or sell any shares of St. Laurent
                  or  any  of  the  Material   Subsidiaries   or  securities  or
                  obligations of any kind  convertible  into or exchangeable for
                  any shares of St.  Laurent,  any  Material  Subsidiary  or any
                  other Person,  nor is there outstanding any stock appreciation


<PAGE>

                  rights,   phantom  equity  or  similar   rights,   agreements,
                  arrangements or commitments based upon the book value,  income
                  or any other attribute of St. Laurent or any  subsidiary.  The
                  St.  Laurent  Disclosure  Letter sets forth the holders of all
                  outstanding  St.  Laurent  Options  and the  number,  exercise
                  prices,  vesting  schedules and expiration dates of each grant
                  to such holders.  There have been no St. Laurent Common Shares
                  issued or purchased  for  cancellation  since January 31, 2000
                  except  pursuant to the purchase of St.  Laurent Common Shares
                  pursuant to the St.  Laurent Share Purchase Plans and pursuant
                  to the  exercise  of  securities  issued  prior to January 31,
                  2000. All outstanding St. Laurent Common Shares have been duly
                  authorized  and are validly  issued and  outstanding  as fully
                  paid and non-assessable  shares,  free of pre-emptive  rights.
                  There are no outstanding bonds,  debentures or other evidences
                  of  indebtedness  of St. Laurent or any subsidiary  having the
                  right to vote (or that are convertible for or exercisable into
                  securities  having the right to vote) with the  holders of the
                  St.  Laurent  Common  Shares  on  any  matter.  There  are  no
                  outstanding   contractual   obligations   of  St.  Laurent  to
                  repurchase, redeem or otherwise acquire any of its outstanding
                  securities or with respect to the voting or disposition of any
                  outstanding securities of any of the Material Subsidiaries. To
                  the knowledge of St. Laurent, as of the date hereof, there are
                  no proxies with respect to any  securities of St.  Laurent and
                  there  are no  agreements  or  understandings  by or among any
                  persons which affect or relate to the voting or giving written
                  consents with respect to any securities of St. Laurent.

         (d)      AUTHORITY AND NO VIOLATION.

                  (i)      St.  Laurent has the  requisite  corporate  power and
                           authority to enter into this Agreement and to perform
                           its obligations hereunder. The execution and delivery
                           of this Agreement by St. Laurent and the consummation
                           by St. Laurent of the  transactions  contemplated  by
                           this Agreement have been duly authorized by its Board
                           of Directors and no other  corporate  proceedings  on
                           its part are necessary to authorize  this  Agreement,
                           or the transactions contemplated hereby other than:

                           (A)      with  respect  to  the  Circular  and  other
                                    matters  relating solely thereto,  including
                                    the  implementation of the Arrangement,  the
                                    approval  of the Board of  Directors  of St.
                                    Laurent; and

                           (B)      with  respect  to  the   completion  of  the
                                    Arrangement, the approval of the St. Laurent
                                    Securityholders.


<PAGE>

                  (ii)     This  Agreement  has been duly executed and delivered
                           by St. Laurent and constitutes  its legal,  valid and
                           binding   obligation,   enforceable   against  it  in
                           accordance  with its terms,  subject  to  bankruptcy,
                           insolvency  and  other   applicable   Laws  affecting
                           creditors'   rights   generally,   and   to   general
                           principles  of  equity  and  to  the  fact  that  the
                           CURRENCY  ACT  (Canada)  precludes  a court in Canada
                           from  giving  judgment  in any  currency  other  than
                           Canadian currency.

                  (iii)    The disinterested directors of the Board of Directors
                           of St. Laurent have (A) determined  unanimously  that
                           the   Arrangement   is  fair   to  the  St.   Laurent
                           Securityholders  and is in the best  interests of St.
                           Laurent,  (B) received separate opinions from Bunting
                           Warburg  Dillon  Read Inc.  and  Donaldson,  Lufkin &
                           Jenrette to the effect  that,  as of the date of this
                           Agreement,   the  Exchange   Consideration   and  the
                           Arrangement is fair from a financial point of view to
                           the St.  Laurent  Securityholders  and (C) determined
                           unanimously   to  recommend   that  the  St.  Laurent
                           Securityholders  vote in favour  of the  Arrangement.
                           St.  Laurent is not subject to a  shareholder  rights
                           plan or "poison pill" or similar plan, other than the
                           St. Laurent Rights Plan.

                  (iv)     The approval of this  Agreement,  the  execution  and
                           delivery  by St.  Laurent of this  Agreement  and the
                           performance  by it of its  obligations  hereunder and
                           the   completion   of   the   Arrangement   and   the
                           transactions contemplated thereby, will not:

                           (A)      result in a violation or breach of,  require
                                    any  consent  to be  obtained  under or give
                                    rise to any  termination,  purchase  or sale
                                    rights  or  payment   obligation  under  any
                                    provision of:

                                    (I)      its  or any  Material  Subsidiary's
                                             certificate    of    incorporation,
                                             articles,  by-laws or other charter
                                             documents,  including any unanimous
                                             shareholder  agreement or any other
                                             agreement or understanding relating
                                             to  ownership  of  shares  or other
                                             interests     or    to    corporate
                                             governance  with any party  holding
                                             an   ownership   interest   in  any
                                             Material Subsidiary;

                                    (II)     subject    to     obtaining     the
                                             Appropriate   Regulatory  Approvals
                                             relating  to St.  Laurent or any of
                                             its  Material   Subsidiaries,   any
                                             Laws, judgment or decree applicable


<PAGE>

                                             to  St.   Laurent  or  any  of  its
                                             Material  Subsidiaries  or by which
                                             any   property  or  assets  of  St.
                                             Laurent  or  any  of  its  Material
                                             Subsidiaries  is bound or  affected
                                             except  to  the  extent   that  the
                                             violation  or breach of, or failure
                                             to obtain any  consent  under,  any
                                             Laws, judgment or decree would not,
                                             individually  or in the  aggregate,
                                             have a Material  Adverse  Effect on
                                             St. Laurent; or

                                    (III)    subject    to     obtaining     the
                                             Appropriate   Regulatory  Approvals
                                             relating  to  St.  Laurent  or  any
                                             Material  Subsidiary  and except as
                                             would not,  individually  or in the
                                             aggregate,  have a Material Adverse
                                             Effect on St. Laurent, any material
                                             contract,    agreement,    license,
                                             franchise  or  permit  to which St.
                                             Laurent or any Material  Subsidiary
                                             is party or by which St. Laurent or
                                             any  Material   Subsidiary  or  any
                                             property or asset of St. Laurent or
                                             any Material Subsidiary is bound or
                                             subject or is the beneficiary;

                           (B)      give  rise to any  right of  termination  or
                                    acceleration  of   indebtedness   (excluding
                                    leases  which have not been  capitalized  by
                                    St.  Laurent or any subsidiary in accordance
                                    with Canadian generally accepted  accounting
                                    principles applied on a consistent basis) of
                                    St. Laurent or any subsidiary,  or cause any
                                    such  indebtedness  to come due  before  its
                                    stated   maturity  or  cause  any  available
                                    credit of St.  Laurent or any  subsidiary to
                                    cease to be  available  other  than as would
                                    not, individually or in the aggregate,  have
                                    a Material Adverse Effect on St. Laurent;

                           (C)      except as would not,  individually or in the
                                    aggregate, have a Material Adverse Effect on
                                    St. Laurent, result in the imposition of any
                                    Lien upon any of its assets or the assets of
                                    any   Material   Subsidiary,   or  restrict,
                                    hinder,  impair or limit the  ability of St.
                                    Laurent or any Material  Subsidiary to carry
                                    on  the  business  of  St.  Laurent  or  any
                                    Material  Subsidiary  as and where it is now
                                    being carried on; or

                           (D)      except as would not,  individually or in the
                                    aggregate, have a Material Adverse Effect on
                                    St.   Laurent,   result   in   any   payment


<PAGE>

                                    (including      severance,      unemployment
                                    compensation,  golden  parachute,  bonus  or
                                    otherwise)  becoming  due to  any  director,
                                    executive   officer  or  senior   management
                                    employee of St. Laurent or any subsidiary or
                                    increase  any  benefits   otherwise  payable
                                    under any St.  Laurent Plan or result in the
                                    acceleration  of time of  payment or vesting
                                    of any such benefits,  including the time of
                                    exercise of stock options.

                  (v)      No consent,  approval,  order or authorization of, or
                           declaration or filing with, any  Governmental  Entity
                           is required  to be  obtained  by St.  Laurent and its
                           Material   Subsidiaries   in   connection   with  the
                           execution  and  delivery  of  this  Agreement  or the
                           consummation  by  St.  Laurent  of  the  transactions
                           contemplated  hereby  other  than  (A) any  approvals
                           required by the Interim  Order,  (B) the Final Order,
                           (C) filings with the Director under the CBCA, (D) the
                           Appropriate  Regulatory  Approvals  relating  to  St.
                           Laurent, (E) any other consents,  approvals,  orders,
                           authorizations,  declarations or filings of or with a
                           Governmental  Entity which if not obtained would not,
                           individually  or in the  aggregate,  have a  Material
                           Adverse  Effect on St.  Laurent and (F) except as set
                           forth in the St. Laurent Disclosure Letter.

         (e)      NO DEFAULTS.  Subject to obtaining the Appropriate  Regulatory
                  Approvals  relating  to St.  Laurent  or  any of its  Material
                  Subsidiaries,  neither  St.  Laurent  nor any of its  Material
                  Subsidiaries  is in default under,  and there exists no event,
                  condition or occurrence  which,  after notice or lapse of time
                  or both,  would constitute such a default under, any contract,
                  agreement,  license or  franchise to which it is a party which
                  default would have a Material Adverse Effect on St. Laurent.

         (f)      ABSENCE OF  CERTAIN  CHANGES  OR  EVENTS.  Except as  Publicly
                  Disclosed by St.  Laurent,  from December 31, 1998 (or, in the
                  case of (iii)  below,  January 31,  2000)  through to the date
                  hereof, each of St. Laurent and its Material  Subsidiaries has
                  conducted its business only in the ordinary and regular course
                  of business and there has not occurred:

                  (i)      a  Material   Adverse  Change  with  respect  to  St.
                           Laurent;

                  (ii)     any damage,  destruction or loss,  whether covered by
                           insurance or not,  that could  reasonably be expected
                           to have a Material Adverse Effect on St. Laurent;


<PAGE>

                  (iii)    any  redemption,  repurchase or other  acquisition of
                           St.  Laurent  Common  Shares  by St.  Laurent  or any
                           declaration, setting aside or payment of any dividend
                           or other  distribution  (whether  in  cash,  stock or
                           property) with respect to St. Laurent Common Shares;

                  (iv)     any  material  increase  in or  modification  of  the
                           compensation  payable  or to become  payable by it to
                           any of its  directors or executive  officers,  or any
                           grant to any such  director or  executive  officer of
                           any increase in severance or termination pay;

                  (v)      any  material  increase  in or  modification  of  any
                           bonus,  pension,  insurance  or  benefit  arrangement
                           (including the granting of stock options,  restricted
                           stock awards or stock  appreciation  rights) made to,
                           for  or  with  any  of  its  directors  or  executive
                           officers;

                  (vi)     any  acquisition  or sale of its  property  or assets
                           having a value in excess of $10,000,000 individually,
                           other  than in the  ordinary  and  regular  course of
                           business;

                  (vii)    any  entering  into,  amendment  of,  relinquishment,
                           termination  or  non-renewal  by it of  any  material
                           contract,   agreement,   license,   franchise,  lease
                           transaction, commitment or other right or obligation,
                           other  than in the  ordinary  and  regular  course of
                           business;

                  (viii)   any  resolution  to approve a split,  combination  or
                           reclassification of any of its outstanding shares;

                  (ix)     any change in its accounting  methods,  principles or
                           practices; or

                  (x)      any  incurrence  of  a  material  liability  (direct,
                           contingent or otherwise);

                  (xi)     any taking of action that would cause the St. Laurent
                           Rights Plan to be applicable;

                  (xii)    any failure by St. Laurent,  in any material respect,
                           to  revalue  any asset in  accordance  with  Canadian
                           generally accepted accounting  principles  consistent
                           with past practice;

                  (xiii)   any  agreement  or  arrangement  to take  any  action
                           which, if taken prior to the date hereof,  would have
                           made any representation or warranty set forth in this
                           Agreement  materially  untrue or  incorrect as of the
                           date when made.


<PAGE>

         (g)      EMPLOYMENT MATTERS.

                  (i)      St.  Laurent  has  made  available  to SSCC  true and
                           complete copies of all binding employment agreements,
                           contracts,  obligations and  understandings  to which
                           St.  Laurent or any  Material  Subsidiary  is a party
                           with  any  director,   executive  officer  or  senior
                           management employee earning in excess of $200,000 for
                           the year ended December 31, 1999 (including bonuses).
                           Except  as set  forth in the  management  information
                           circular  prepared  in  connection  with  the  Annual
                           Meeting of St.  Laurent held on May 5, 1999,  neither
                           St. Laurent nor any Material Subsidiary is a party to
                           any  binding   policy,   agreement,   obligation   or
                           understanding  providing for severance or termination
                           payments to, or any  employment  agreement  with, any
                           director,  executive  officer  or  senior  management
                           employee  earning in excess of $200,000  for the year
                           ended December 31, 1999 (including bonuses).

                  (ii)     St.   Laurent  has  identified  in  the  St.  Laurent
                           Disclosure  Letter and has delivered to SSCC true and
                           complete   copies   of  all   collective   bargaining
                           agreements,  letters  of  understanding,   and  other
                           contracts  to  which  St.  Laurent  and any  Material
                           Subsidiary  is a party with any labour  organization.
                           Neither St.  Laurent nor any Material  Subsidiary  is
                           subject to any application for  certification  or, to
                           the knowledge of St. Laurent,  threatened or apparent
                           union-organizing    campaigns    or    representation
                           disputes.  There are no  current  pending  or, to the
                           knowledge  of  St.   Laurent,   threatened   strikes,
                           slowdowns,  stoppages  or disputes at St.  Laurent or
                           any Material  Subsidiary that would,  individually or
                           in the aggregate,  have a Material  Adverse Effect on
                           St. Laurent.  No collective  bargaining  agreement to
                           which St.  Laurent or any  subsidiary  is or may be a
                           party is currently under negotiation or renegotiation
                           and no existing  collective  bargaining  agreement is
                           due for expiration,  renewal or renegotiation  within
                           the one-year period after the date hereof.

                  (iii)    Neither St.  Laurent nor any Material  Subsidiary  is
                           subject   to  any  claim  for   wrongful   dismissal,
                           constructive  dismissal  or  any  other  tort  claim,
                           actual  or,  to  the   knowledge   of  St.   Laurent,
                           threatened,  or any  litigation,  actual  or,  to the
                           knowledge  of St.  Laurent,  threatened,  relating to


<PAGE>

                           employment or  termination of employment of employees
                           or independent  contractors,  other than those claims
                           or such  litigation as would,  individually or in the
                           aggregate,  not have a Material Adverse Effect on St.
                           Laurent.  No unfair labour practice complaint against
                           St.  Laurent or any  Material  Subsidiary  is pending
                           before the  National  Labour  Relations  Board or any
                           other  tribunal which would,  individually  or in the
                           aggregate,  reasonably be expected to have a Material
                           Adverse  Effect on St.  Laurent.  Neither St. Laurent
                           nor any Material Subsidiary is involved in or, to the
                           knowledge  of  St.   Laurent,   threatened  with  any
                           complaint or grievance which,  individually or in the
                           aggregate, has had or would be reasonably expected to
                           have a Material  Adverse Effect on St.  Laurent.  St.
                           Laurent  has  delivered  to SSCC a true and  complete
                           list of all claims,  complaints and  grievances  that
                           are  pending  against  St.  Laurent  or any  Material
                           Subsidiary  by any current or former  employee  which
                           would,  individually or in the aggregate,  reasonably
                           be expected to have a Material  Adverse Effect on St.
                           Laurent.

                  (iv)     Except for any matter which would  individually or in
                           the  aggregate  not  reasonably be expected to have a
                           Material  Adverse Effect on St. Laurent,  St. Laurent
                           and its Material  Subsidiaries  have operated and are
                           in  compliance  with all  federal,  state  and  other
                           applicable  laws,  domestic  or  foreign,  respecting
                           labour and employment, including, but not limited to,
                           fair employment  practices,  labour standards,  equal
                           employment   opportunity,   occupational  health  and
                           safety,   employment  equity,  pay  equity,  workers'
                           compensation,  human rights,  immigration,  wages and
                           hours,  plant  closing,  and the  payment  of  social
                           security  and  similar  taxes;  there are no current,
                           pending  or,  to  the   knowledge  of  St.   Laurent,
                           threatened   charges,    claims,    suits,   actions,
                           proceedings or investigations  against St. Laurent or
                           any Material  Subsidiary  by or before any  tribunal,
                           federal or state court or administrative  agency with
                           respect to any of the above areas which, individually
                           or in the  aggregate,  has had or would be reasonably
                           expected  to have a  Material  Adverse  Effect on St.
                           Laurent;   neither  St.   Laurent  nor  any  Material
                           Subsidiary is a government  contractor subject to any
                           obligations imposed by the Office of Federal Contract
                           Compliance  Program or any comparable  state or local
                           affirmative action agency.


<PAGE>

         (h)      FINANCIAL  STATEMENTS.   The  audited  consolidated  financial
                  statements (including, in each case, any notes thereto) of St.
                  Laurent as at and for the 12-month  periods ended December 31,
                  1998,  December  31,  1997  and  December  31,  1996  and  the
                  unaudited  consolidated  financial  statements for the 9-month
                  period ended  September 30, 1999 (the "ST.  LAURENT  FINANCIAL
                  STATEMENTS")  have been prepared in  accordance  with Canadian
                  generally   accepted   accounting   principles  applied  on  a
                  consistent basis throughout the periods  indicated  (except as
                  may be indicated in the notes thereto)  (subject,  in the case
                  of  such  unaudited  financial   statements,   to  normal  and
                  recurring  year-end  adjustments  which  were  not and are not
                  expected,  individually or in the aggregate, to be material in
                  amount and the absence of certain footnote  disclosures),  the
                  requirements   of   applicable   Governmental   Entities   and
                  applicable Securities  Legislation;  such financial statements
                  present fairly,  in all material  respects,  the  consolidated
                  financial  position,  results of operations  and cash flows of
                  St. Laurent and its  subsidiaries  as of the respective  dates
                  thereof  and  for  the  respective  periods  covered  thereby,
                  subject, in the case of such unaudited  financial  statements,
                  to normal and recurring  year-end  adjustments  which were not
                  and are not expected,  individually or in the aggregate, to be
                  material in amount.

         (i)      ABSENCE OF UNDISCLOSED LIABILITIES. Except as reflected in the
                  audited  financial  statements of St. Laurent for the 12-month
                  period ended  December 31, 1998, as Publicly  Disclosed by St.
                  Laurent or as incurred  in the  ordinary  course of  business,
                  neither  St.  Laurent  nor  any of its  subsidiaries  has  any
                  liabilities or obligations of any nature  (absolute,  accrued,
                  contingent or otherwise), which, either individually or in the
                  aggregate,  are  material  in  amount to St.  Laurent  and its
                  subsidiaries taken as a whole.

         (j)      BOOKS AND  RECORDS.  The books,  records  and  accounts of St.
                  Laurent and its subsidiaries,  in all material  respects,  (i)
                  have  been   maintained  in  accordance   with  good  business
                  practices on a basis  consistent  with prior  years,  (ii) are
                  stated in reasonable  detail and accurately and fairly reflect
                  the transactions and dispositions of the assets of St. Laurent
                  and its  subsidiaries  and (iii) fairly  reflect the basis for
                  the  consolidated  financial  statements of St.  Laurent.  St.
                  Laurent  has  devised  and  maintains  a  system  of  internal
                  accounting   controls   sufficient   to   provide   reasonable
                  assurances  that (i)  transactions  are executed in accordance
                  with management's general or specific authorization;  and (ii)
                  transactions   are  recorded  as   necessary   (A)  to  permit
                  preparation  of  financial   statements  in  conformity   with
                  Canadian generally accepted accounting principles or any other
                  criteria  applicable  to such  statements  and (B) to maintain
                  accountability for assets.


<PAGE>

         (k)      LITIGATION,  ETC. Except as Publicly Disclosed by St. Laurent,
                  there  is   currently   no  claim,   action,   proceeding   or
                  investigation  (including any native land claims)  pending or,
                  to  the  knowledge  of  St.  Laurent,  threatened  against  or
                  affecting St.  Laurent or any Material  Subsidiary  before any
                  court  or  Governmental   Entity  that,  could  reasonably  be
                  expected to have a Material Adverse Effect on St. Laurent,  or
                  prevent or materially  delay  consummation of the transactions
                  contemplated by this Agreement or the Arrangement. Neither St.
                  Laurent  nor any  Material  Subsidiary,  nor their  respective
                  assets and properties, is subject to any outstanding judgment,
                  order,  writ,   injunction  or  decree  that  has  had  or  is
                  reasonably  likely to have a  Material  Adverse  Effect on St.
                  Laurent or that would prevent or materially delay consummation
                  of the  transactions  contemplated  by this  Agreement  or the
                  Arrangement.

         (l)      ENVIRONMENTAL. Except for any matters that, individually or in
                  the aggregate, would not have a Material Adverse Effect on St.
                  Laurent:

                  (i)      all  operations of St.  Laurent and its  subsidiaries
                           have been conducted,  and are now, in compliance with
                           all Environmental Laws;

                  (ii)     St.  Laurent and its  subsidiaries  are in possession
                           of,   and   in   compliance    with,   all   permits,
                           authorizations,        certificates,        licenses,
                           registrations, approvals and consents necessary under
                           Environmental  Laws to own,  lease and operate  their
                           properties and to conduct their respective businesses
                           as they are now being  conducted or as proposed to be
                           conducted (collectively the "ENVIRONMENTAL PERMITS");

                  (iii)    neither St. Laurent nor any subsidiary is subject to:

                           (A)      any  non-compliance  with Environmental Laws
                                    which  requires or, to the  knowledge of St.
                                    Laurent,  may,  require  any work,  repairs,
                                    construction,  change in business  practices
                                    or operations,  or  expenditures,  including
                                    capital  expenditures for facility upgrades,
                                    environmental  investigation and remediation
                                    expenditures,     or    any    other    such
                                    expenditures;


<PAGE>

                           (B)      any  written  demand or written  notice with
                                    respect  to  the  breach  of  or   potential
                                    liability  under any  Environmental  Laws or
                                    Environmental  Permits by St. Laurent or any
                                    subsidiary, including but not limited to any
                                    regulations  respecting the use, generation,
                                    release, storage, treatment,  transportation
                                    or   disposition   (including   disposal  or
                                    arranging   for   disposal)   of   Hazardous
                                    Substances;

                           (C)      any  written  demand or written  notice with
                                    respect to potential liability,  by contract
                                    or under  Environmental Laws relating to St.
                                    Laurent  or  any   current  or,  any  former
                                    subsidiary  or,  to  the  knowledge  of  St.
                                    Laurent, any of their respective predecessor
                                    entities,  divisions or any formerly  owned,
                                    leased or operated  properties  or assets of
                                    the foregoing, including potential liability
                                    with  respect to the  presence,  generation,
                                    storage, treatment,  release or discharge of
                                    Hazardous Substances; or

                           (D)      any  changes in the terms or  conditions  of
                                    any  Environmental  Permits or any  renewal,
                                    modification,     revocation,    reissuance,
                                    alteration,  transfer or  amendment  of such
                                    Environmental  Permits, or any review by, or
                                    approval of, any Governmental Entity of such
                                    Environmental  Permits  that are required in
                                    connection with the execution or delivery of
                                    this  Agreement,  the  consummation  of  the
                                    transactions   contemplated  hereby  or  the
                                    continuation  of business of St.  Laurent or
                                    any     subsidiaries      following     such
                                    consummation;

                           (E)      any  non-compliance  with Environmental Laws
                                    pertaining  to  underground  storage  tanks,
                                    asbestos containing materials,  or regulated
                                    levels of polychlorinated biphenols existing
                                    at any of the  facilities  owned or operated
                                    by St. Laurent or any subsidiary; and

                  (iv)     with  respect  to  such  businesses  and  operations,
                           neither St. Laurent nor its subsidiaries  have at any
                           time given any written  undertakings  with respect to
                           remedying any breach or liability under Environmental
                           Laws or  Environmental  Permits which are required to
                           have been performed and have not been duly performed.


<PAGE>

         (m)      TAX MATTERS.

                  (i)      St.  Laurent  and each of its  Material  Subsidiaries
                           have duly and  timely  filed,  or caused to be filed,
                           all material Tax Returns required to be filed by them
                           (all of which  returns  were  correct and complete in
                           all material respects) and have paid, or caused to be
                           paid,  all material  amounts of Taxes shown to be due
                           and payable thereon,  and St. Laurent's most recently
                           published  financial  statements  contain an adequate
                           provision  in  accordance  with  Canadian   generally
                           accepted  accounting   principles  for  all  material
                           amounts of Taxes  payable  in respect of each  period
                           covered by such  financial  statements  and all prior
                           periods to the extent  such Taxes have not been paid,
                           whether or not due and  whether or not shown as being
                           due on any Tax Returns.  St.  Laurent and each of its
                           Material Subsidiaries have made adequate provision in
                           accordance   with   generally   accepted   accounting
                           principles   in  their  books  and  records  for  any
                           material  amounts of Taxes accruing in respect of any
                           accounting  period which has ended  subsequent to the
                           period covered by such financial statements.

                  (ii)     Neither St.  Laurent nor any Material  Subsidiary has
                           received  any  written  notification  that any issues
                           involving a material amount of Taxes have been raised
                           (and are currently  pending) by Revenue  Canada,  the
                           United States  Internal  Revenue Service or any other
                           taxing authority,  including any sales tax authority,
                           in connection with any of the Tax Returns referred to
                           above and no waivers of statutes of limitations  have
                           been given or requested  with respect to St.  Laurent
                           or any  Material  Subsidiary.  All Tax Returns of St.
                           Laurent  and the  Material  Subsidiaries  for  income
                           taxes have been  examined  by  applicable  Government
                           Entities for all fiscal years up to and including the
                           fiscal year ended December 31, 1995 (Canada).  To the
                           best of the  knowledge of St.  Laurent,  there are no
                           proposed in writing (but unassessed) additional Taxes
                           involving  a  material  amount  of Taxes and none has
                           been  asserted  in  writing.  No Tax liens  have been
                           filed for  material  amounts of Taxes  other than for
                           Taxes not yet due and  payable.  Neither St.  Laurent
                           nor any of its  subsidiaries  has filed  any  consent
                           agreement   under  Section  341(f)  of  the  Internal
                           Revenue  Code  of  1986,  as  amended  (the  "CODE").
                           Neither St.  Laurent nor any of its  subsidiaries  is
                           party to any agreement  providing for the  allocation
                           or payment  of Tax  liabilities  or  payment  for Tax


<PAGE>

                           benefits.  St. Laurent has not made an election under
                           Section  897(i)  of  the  Code  to  be  treated  as a
                           domestic  corporation  for purposes of Sections  897,
                           1445 and 6039C of the Code.  St.  Laurent is not, nor
                           ever been,  a "United  States real  property  holding
                           company"  within the meaning of Section  897(c)(2) of
                           the Code. To the extent that the  classification of a
                           St. Laurent  subsidiary is relevant for U.S.  federal
                           income tax purposes,  such subsidiary is treated as a
                           corporation  for  purposes  of the Code.  Neither St.
                           Laurent nor any of its  subsidiaries  is engaged in a
                           trade or business or has a permanent establishment in
                           a country other than the country in which such entity
                           is formed or organized.

                  (iii)    "TAX" and "TAXES" means,  with respect to any entity,
                           all income taxes  (including any tax on or based upon
                           net  income,   gross  income,   income  as  specially
                           defined,  earnings,  profits  or  selected  items  of
                           income,  earnings or profits) and all capital  taxes,
                           gross  receipts  taxes,  environmental  taxes,  sales
                           taxes,  use taxes,  ad  valorem  taxes,  value  added
                           taxes,  transfer  taxes,   franchise  taxes,  license
                           taxes,  withholding taxes, payroll taxes,  employment
                           taxes,   Canada  or  Quebec  Pension  Plan  premiums,
                           employment  insurance  premiums,  excise,  severance,
                           social  security  premiums,   workers'   compensation
                           premiums,   unemployment  insurance  or  compensation
                           premiums,  stamp  taxes,  occupation  taxes,  premium
                           taxes,   property  taxes,   windfall  profits  taxes,
                           alternative  or  add-on  minimum  taxes,   goods  and
                           services tax,  customs  duties or other taxes,  fees,
                           imports,   assessments   or   charges   of  any  kind
                           whatsoever,   together  with  any  interest  and  any
                           penalties or additional amounts imposed by any taxing
                           authority  (domestic or foreign) on such entity,  and
                           any  interest,   penalties,   additional   taxes  and
                           additions   to  tax  imposed   with  respect  to  the
                           foregoing.  For  purposes of this  Section  3.1(m)the
                           term "material  amount of Taxes" shall mean an amount
                           of Taxes  that is  material  to St.  Laurent  and its
                           subsidiaries taken as a whole.

                  (iv)     St.  Laurent  and each of its  Material  Subsidiaries
                           have  withheld from each payment made to any of their
                           respective present or former employees,  officers and
                           directors,  and to all persons who are  non-residents
                           of Canada  for the  purposes  of the  INCOME  TAX ACT
                           (Canada)  all amounts of Taxes  required by law,  and
                           have  remitted  such  withheld   amounts  within  the
                           prescribed  periods  to the  appropriate  federal  or
                           provincial  taxing  authority  to the extent that the
                           failure  to  do so  would,  individually  or  in  the


<PAGE>

                           aggregate,  have a  Material  Adverse  Effect  on St.
                           Laurent.  St.  Laurent  and each of its  subsidiaries
                           have remitted all Canada Pension Plan  contributions,
                           employment insurance premiums,  employer health taxes
                           and other Taxes payable in respect of their employees
                           and have or will have  remitted  such  amounts to the
                           proper taxing  authority  within the time required by
                           applicable  law, to the extent that the failure to do
                           so would,  individually  or in the aggregate,  have a
                           Material  Adverse Effect on St. Laurent.  St. Laurent
                           and each of its subsidiaries have charged,  collected
                           and  remitted on a timely basis all Taxes as required
                           by applicable  law  (including  Part IX of the EXCISE
                           TAX ACT (Canada) or the retail sales tax  legislation
                           of any  province  of Canada) on any sales,  supply or
                           delivery  whatsoever,  made  by  St.  Laurent  or any
                           Material  Subsidiary,  to the extent that the failure
                           to do so  would,  individually  or in the  aggregate,
                           have a Material Adverse Effect on St. Laurent.

         (n)      PENSION AND EMPLOYEE BENEFITS.

                  (i)      St. Laurent has delivered to SSCC a true and complete
                           list as of the date hereof of each material "employee
                           pension  benefit  plan" (as such term is  defined  in
                           Section 3(2) of the United States EMPLOYEE RETIREMENT
                           INCOME  SECURITY ACT OF 1974, as amended  ("ERISA")),
                           material  "employee  welfare  benefit  plan" (as such
                           term is defined in Section 3(1) of ERISA),  severance
                           agreement,  bonus, stock option,  stock purchase,  or
                           other   incentive  plan   (including  any  equity  or
                           equity-based  plan),   deferred   compensation  plan,
                           salary  reduction  agreement,  or any other  material
                           benefit plan,  policy,  program or arrangement,  with
                           respect  to any  employee,  former  employee,  to the
                           extent  applicable,  director or any  beneficiary  or
                           dependent thereof (including any "employee pension or
                           benefit plan",  as defined in Section 3(3) of ERISA),
                           maintained  by St.  Laurent or a Material  Subsidiary
                           (collectively   referred  to  as  the  "ST.   LAURENT
                           PLANS").  The St.  Laurent  Disclosure  Letter states
                           which of the St.  Laurent  Plans intend to constitute
                           "employee  pension  benefit  plans"  (as  defined  in
                           Section 3(2) of ERISA) or "employee  welfare  benefit
                           plans" (as defined in Section 3(1) of ERISA).

                  (ii)     To the  knowledge  of St.  Laurent,  no step has been
                           taken,  no event has  occurred  and no  condition  or
                           circumstance  exists  that has  resulted  in or could
                           reasonably  be expected to result in any St.  Laurent
                           Plan being  ordered or required to be  terminated  or
                           wound  up  in  whole  or  in  part  or   having   its


<PAGE>

                           registration   under   applicable   Laws  refused  or
                           revoked,  or being placed under the administration of
                           any trustee or receiver or  regulatory  authority  or
                           being  required  to pay  any  material  Taxes,  fees,
                           penalties or levies under  applicable Laws. There are
                           no actions,  suits, claims (other than routine claims
                           for  payment of  benefits  in the  ordinary  course),
                           trials,  demands,  investigations,   arbitrations  or
                           other  proceedings  which  are  pending  or,  to  the
                           knowledge of St.  Laurent,  threatened  in respect of
                           any of the St.  Laurent  Plans or their  assets which
                           individually or in the aggregate could  reasonably be
                           expected  to have a  Material  Adverse  Effect on St.
                           Laurent.

                  (iii)    St. Laurent has made available to SSCC true,  correct
                           and complete  copies of all of the St.  Laurent Plans
                           as  amended  (or,  in the case of any  unwritten  St.
                           Laurent  Plan, a description  thereof)  together with
                           actuarial  reports and applicable  audited  financial
                           statements,  and the most recent determination letter
                           from  the  U.S.  Internal  Revenue  Service  or other
                           applicable  Governmental Entity. St. Laurent has made
                           available  to SSCC a true  and  complete  copy of the
                           most   recent   Annual   Report   on  Form  5500  and
                           accompanying  schedules  filed with the United States
                           Internal  Revenue  Service  with  respect to each St.
                           Laurent  Plan in  respect  of which such a report was
                           required.  Except  as  specifically  provided  in the
                           foregoing  documents  delivered to SSCC, there are no
                           material amendments to any St. Laurent Plan that have
                           been  adopted  or  approved   nor  has  St.   Laurent
                           undertaken to make any such amendments or to adopt or
                           approve any new Plan.

                  (iv)     All of the  St.  Laurent  Plans  are  and  have  been
                           established,   registered,  qualified,  invested  and
                           administered, in all material respects, in accordance
                           with all  applicable  Laws,  and in  accordance  with
                           their terms and the terms of  agreements  between St.
                           Laurent and/or a subsidiary,  as the case may be, and
                           their respective  employees.  To the knowledge of St.
                           Laurent,  no fact or  circumstance  exists that could
                           adversely  affect  the  existing  tax status of a St.
                           Laurent Plan.

                  (v)      All material  contributions or other amounts required
                           to be paid by St. Laurent as of the Effective Time by
                           applicable  Law or the  terms of a St.  Laurent  Plan
                           with respect of current or prior plan years will have
                           been  paid or  accrued  by the  Effective  Time.  All
                           contributions,    payments,    premiums,    expenses,
                           reimbursements  or accruals  for all  periods  ending


<PAGE>

                           prior  to or as of the  Effective  Time  for each St.
                           Laurent Plan (including periods from the first day of
                           the then  current  plan year to the  Effective  Time)
                           shall  have been  made or  accrued  on St.  Laurent's
                           financial  statements (in  accordance  with generally
                           applied accounting principles,  including FAS 87, 88,
                           106  and  112),   and  each  such  St.  Laurent  Plan
                           otherwise  does not have nor could have any  unfunded
                           liability  (including benefit  liabilities as defined
                           in  Section   4001(a)(16)   of  ERISA)  or   unfunded
                           actuarial liabilities or solvency deficiencies within
                           the meaning of the QUEBEC SUPPLEMENTAL  PENSION PLANS
                           ACT which is not  reflected on financial  statements,
                           except   where  the   failure  to  do  so  would  not
                           individually  or in  the  aggregate  be  material  in
                           amount. The same shall be true for all periods ending
                           as of the Effective Time for each St. Laurent Plan.

                  (vi)     To the  knowledge  of St.  Laurent  and other than as
                           Publicly  Disclosed by St. Laurent,  each St. Laurent
                           Plan, as the case may be, has no accumulated  funding
                           deficiency,  and as of the date hereof,  no notice of
                           under-funding,  non-compliance, failure to be in good
                           standing  or  otherwise  has  been  received  by  St.
                           Laurent or its subsidiaries  from any such regulatory
                           authority.

                  (vii)    All St. Laurent Plans intended to be tax-qualified in
                           the   United   States   have  been  the   subject  of
                           determination letters from the United States Internal
                           Revenue  Service to the effect that such St.  Laurent
                           Plans are  qualified  and exempt from  United  States
                           Federal  income  taxes  under  Sections   401(a)  and
                           501(a),  respectively,  of  the  Code,  and  no  such
                           determination  letter has been  revoked  nor,  to the
                           knowledge  of  St.   Laurent,   has  revocation  been
                           threatened,  nor has any such St.  Laurent  Plan been
                           amended   since   the   date  of  its   most   recent
                           determination  letter or application  therefor in any
                           respect that would adversely affect its qualification
                           and, to the  knowledge  of St.  Laurent,  nothing has
                           occurred  since the date of such  letter  that  could
                           reasonably be expected to affect the qualified status
                           of such plan.

                  (viii)   Except  as set  forth in the St.  Laurent  Disclosure
                           Letter,  no amount that could be received (whether in
                           cash or  property or the  vesting of  property)  as a
                           result  of  the  transactions  contemplated  by  this
                           Agreement or the Arrangement by any employee, officer
                           or director of St.  Laurent or any of its  affiliates
                           who is a  "disqualified  individual" (as such term is
                           defined   in  Code   Section   280G(i))   under   any


<PAGE>

                           employment, severance or termination agreement, other
                           compensation   arrangement   or  St.   Laurent   Plan
                           currently  in effect will fail to be  deductible  for
                           United States  federal  income tax purposes by virtue
                           of Section 280G of the Code.

                  (ix)     No St. Laurent Plan is a "multiemployer pension plan"
                           (as such term is defined  in Section  3(37) of ERISA)
                           or a plan that has two or more contributing  sponsors
                           at least  two of whom are not under  common  control,
                           within  the  meaning  of  Section  4063 of  ERISA  (a
                           "multiple  employer  plan").  Neither St. Laurent nor
                           any of its ERISA  Affiliates  (as defined  below) has
                           (1)  at  any  time   during   the  last  six   years,
                           contributed to or been obligated to contribute to any
                           multiemployer pension plan or multiple employer plan,
                           or  (2)  incurred  any  withdrawal   liability  to  a
                           multiemployer  pension plan as a result of a complete
                           or partial withdrawal from such multiemployer pension
                           plan that has not been satisfied in full.  There does
                           not now exist,  nor, to the knowledge of St. Laurent,
                           do any circumstances  exist that could result in, any
                           liability  that would be a liability  of St.  Laurent
                           following  the  Effective  Time under Section 4971 of
                           the Code,  or as a result of a failure to comply with
                           the continuation coverage requirements of Section 601
                           et seq. of ERISA and Section  4980B of the Code which
                           could have a Material  Adverse Effect on St. Laurent.
                           For  purposes of this  Agreement,  "ERISA  AFFILIATE"
                           shall  mean St.  Laurent  and any  trade or  business
                           which is under common  control or which is treated as
                           a single  employer  with St.  Laurent  under  Section
                           414(b) or (c) of the Code.

                  (x)      St.   Laurent  has  identified  in  the  St.  Laurent
                           Disclosure Letter and has made available to SSCC true
                           and complete copies of (1) all material severance and
                           employment   agreements  with  directors,   executive
                           officers,   key  employees  or   consultants  of  St.
                           Laurent;  (2) all  material  severance  programs  and
                           policies  of St.  Laurent  with  or  relating  to its
                           employees;  and (3)  all  material  plans,  programs,
                           agreements and other arrangements of St. Laurent with
                           or   relating   to  its   employees,   directors   or
                           consultants   which   contain   change   in   control
                           provisions.  Neither the  execution  and  delivery of
                           this   Agreement   nor   the   consummation   of  the
                           transactions  contemplated  hereby will (either alone
                           or in  conjunction  with  any  other  event,  such as
                           termination of employment)  (A) result in any payment
                           or   profit   (including   severance,    unemployment
                           compensation, golden parachute or otherwise) becoming


<PAGE>

                           due  or  increased  to  any  director,   employee  or
                           consultant of St.  Laurent or an Affiliate from SSCC,
                           St.  Laurent or an  Affiliate  under any St.  Laurent
                           Plan  or   otherwise,   (B)   increase  any  benefits
                           otherwise  payable under any St.  Laurent Plan or (C)
                           result in any  acceleration of the time of payment or
                           vesting  of  any   compensation   or   benefits.   No
                           individual  who is a party to an employment or change
                           of  control  agreement  listed  in  the  St.  Laurent
                           Disclosure  Letter with St.  Laurent  has  terminated
                           employment or been terminated.

                  (xi)     No St.  Laurent  Plan  provides  benefits,  including
                           death or medical  benefits  (whether or not insured),
                           with  respect to current or former  employees  of St.
                           Laurent beyond their retirement or other  termination
                           of  service,   other  than  benefits  as  accrued  as
                           liabilities on the books of St. Laurent.

                  (xii)    To the knowledge of St. Laurent, with respect to each
                           St. Laurent Plan, no Person: (A) has entered into any
                           "prohibited  transaction," as such term is defined in
                           ERISA or the Code and the regulations, administrative
                           rulings  and case law  thereunder  that is not exempt
                           under Code Section 4975 or ERISA  Section 408 (or any
                           administrative  class exemption  issued  thereunder);
                           (B) has breached a fiduciary  obligation  or violated
                           Sections 402, 403, 405, 503, 510 or 511 of ERISA; (C)
                           has any liability for any failure to act or comply in
                           connection with the  administration  or investment of
                           the assets of such  plans;  or (D) has engaged in any
                           transaction  or otherwise  acted with respect to such
                           plans in such a manner which could subject SSCC,  St.
                           Laurent or any  employee of St.  Laurent to liability
                           under Section 409 or 502 of ERISA or Sections 4972 or
                           4976  through  4980B of the Code and where such event
                           would have a Material Adverse Effect on St. Laurent.

                  (xiii)   Each St.  Laurent  Plan may be  amended,  terminated,
                           modified  or  otherwise  revised by St.  Laurent,  as
                           provided in St.  Laurent  Plan,  other than  benefits
                           protected  under  Section  411(d) of the Code, on and
                           after the  Effective  Time,  and except as limited by
                           any collective bargaining agreement.

         (o)      REPORTS.  St.  Laurent has filed with the QSC, the OSC and the
                  SEC true and complete copies of all forms, reports, schedules,
                  statements and other documents required to be filed by it with
                  such entities (such forms, reports, schedules,  statements and
                  other documents,  including any financial  statements or other
                  documents,  including  any  schedules  included  therein,  are


<PAGE>

                  referred to as the "ST. LAURENT  DOCUMENTS").  The St. Laurent
                  Documents   at  the  time  filed  (i)  did  not   contain  any
                  misrepresentation (as defined in the SECURITIES ACT (Ontario))
                  and  (ii)   complied  in  all  material   respects   with  the
                  requirements of applicable Securities Legislation. St. Laurent
                  has not filed any confidential material change report with the
                  OSC or any other  securities  authority  or  regulator  or any
                  stock exchange or other self-regulatory authority which at the
                  date hereof remains  confidential.  No Material  Subsidiary is
                  required to file any form,  report or other  document with the
                  QSC, the OSC or the SEC.

         (p)      COMPLIANCE  WITH LAWS.  Except as  Publicly  Disclosed  by St.
                  Laurent,  St.  Laurent  and  its  Material  Subsidiaries  have
                  complied with and are not in violation of any applicable Laws,
                  orders,  judgments  and decrees other than  non-compliance  or
                  violations which would not,  individually or in the aggregate,
                  have  a  Material  Adverse  Effect  on  St.  Laurent.  Without
                  limiting the  generality of the  foregoing,  all securities of
                  St.  Laurent   (including,   all  options,   rights  or  other
                  convertible or  exchangeable  securities)  have been issued in
                  compliance,  in all  material  respects,  with all  applicable
                  Securities  Legislation  and all  securities to be issued upon
                  exercise of any such options,  rights and other convertible or
                  exchangeable  securities will be issued in compliance with all
                  applicable Securities Legislation.

         (q)      RESTRICTIONS  ON  BUSINESS  ACTIVITIES.   Except  as  Publicly
                  Disclosed by St.  Laurent,  there is no  agreement,  judgment,
                  injunction,  order or decree  binding upon St.  Laurent or any
                  Material  Subsidiary that has or could  reasonably be expected
                  to have the effect of  prohibiting,  restricting or materially
                  impairing any business practice of St. Laurent or any Material
                  Subsidiary,  any acquisition of property by St. Laurent or any
                  Material  Subsidiary or the conduct of business by St. Laurent
                  or any Material  Subsidiary as currently  conducted other than
                  prohibitions,  restrictions  or  impairment  which  would not,
                  individually  or in the  aggregate,  have a  Material  Adverse
                  Effect on St. Laurent.

         (r)      INTELLECTUAL PROPERTY.

                  (i)      St. Laurent and its Material Subsidiaries own, or are
                           licensed or otherwise  possess,  legally  enforceable
                           rights and are otherwise legally entitled to use, all
                           patents,  trade  secrets,  trademarks,  trade  names,
                           service  marks,   copyrights  and  mask  works,   all
                           applications  for and  registrations of such patents,
                           trademarks,  trade names,  service marks,  copyrights
                           and mask works, and all processes, formulae, methods,
                           schematics,  technology,  know-how, computer software


<PAGE>

                           programs or  applications  and tangible or intangible
                           proprietary   information   or   material   that  are
                           necessary to conduct the business of St.  Laurent and
                           its  subsidiaries  as currently  conducted  (the "ST.
                           LAURENT INTELLECTUAL  PROPERTY RIGHTS") except to the
                           extent  that the  failure to have such  rights  would
                           not, individually or in the aggregate,  be reasonably
                           expected  to have a  Material  Adverse  Effect on St.
                           Laurent.

                  (ii)     To the knowledge of St. Laurent,  neither St. Laurent
                           nor any of its Material Subsidiaries is or will be as
                           a  result  of the  execution  and  delivery  of  this
                           Agreement,  or the  performance  of  its  obligations
                           under  this  Agreement,  in  breach  of any  license,
                           sublicense  or other  agreement  relating  to the St.
                           Laurent Intellectual  Property Rights or any license,
                           sublicense or other  agreement  pursuant to which St.
                           Laurent or any of its  subsidiaries  is authorized to
                           use  any   third   party   patents,   trademarks   or
                           copyrights, including software, which are used in the
                           manufacture  of,  incorporated  in, or form a part of
                           any   product   of   St.   Laurent   or  any  of  its
                           subsidiaries, except for breaches which, individually
                           or in the aggregate, would not be reasonably expected
                           to have a Material Adverse Effect on St. Laurent.

                  (iii)    All patents,  registered  and common law  trademarks,
                           service marks and  copyrights  held by St. Laurent or
                           any of its Material  Subsidiaries  which are material
                           to the  business  of St.  Laurent  and  its  Material
                           Subsidiaries are valid and  enforceable.  Neither St.
                           Laurent nor any of its Material  Subsidiaries (i) has
                           been sued in any suit,  action  or  proceeding  which
                           involves a claim of infringement of any patent, trade
                           secret,  trademark,  service mark or copyright or the
                           violation  of any trade  secret or other  proprietary
                           right of any  third  party or (ii) has any  knowledge
                           that  the  manufacturing,   importation,   marketing,
                           licensing, sale, offer for sale, or use of any of its
                           products  infringes  any patent,  trademark,  service
                           mark,  copyright,  trade secret or other  proprietary
                           right  of  any  third  party,   which   infringement,
                           individually or in the aggregate, would be reasonably
                           expected  to have a  Material  Adverse  Effect on St.
                           Laurent.

         (s)      INSURANCE.  St.  Laurent has policies of insurance in force as
                  of the date hereof naming St. Laurent and/or its subsidiaries,
                  as the case may be, as an insured which,  having regard to the
                  nature  of such  risk  and  the  relative  cost  of  obtaining


<PAGE>

                  insurance,  St. Laurent believes are reasonable,  except where
                  failure   to  have  such   insurance   policies   would   not,
                  individually  or in the  aggregate,  have a  Material  Adverse
                  Effect on St. Laurent.

         (t)      PROPERTY. Except as Publicly Disclosed by St. Laurent, each of
                  St.  Laurent  and  its  Material  Subsidiaries  has  good  and
                  marketable  title to all of their  respective  properties  and
                  assets (real and personal, tangible and intangible,  including
                  leasehold interest, leases, easements,  rights of way, permits
                  or licences from land owners or authorities permitting the use
                  of land by St. Laurent or its Material Subsidiaries) including
                  all the properties and assets  reflected in the balance sheets
                  forming part of the St. Laurent Financial  Statements,  except
                  as indicated in the notes thereto, together with all additions
                  thereto  and less all  dispositions  thereof  in the  ordinary
                  course of their businesses,  necessary to permit the operation
                  of their businesses as presently owned and conducted,  in each
                  case subject to no Lien except for  Permitted  Liens and as is
                  reflected  in the balance  sheets  forming part of the audited
                  financial  statements of St.  Laurent for the 12-month  period
                  ended December 31, 1998, except where the failure to have such
                  title,  individually,  or in the  aggregate,  would not have a
                  Material Adverse Effect on St. Laurent.

         (u)      LICENCES,  ETC. St. Laurent and each Material Subsidiary owns,
                  possesses,  or has obtained  and is in  compliance  with,  all
                  licences,  permits,  certificates,  orders,  grants  and other
                  authorizations of or from any Governmental Entity necessary to
                  conduct its  businesses  as now conducted or as proposed to be
                  conducted  except for such failure that would  individually or
                  in the  aggregate  not have a Material  Adverse  Effect on St.
                  Laurent. As of the date hereof, all of the permits are in full
                  force and effect and no violation,  suspension or cancellation
                  of any of the Permits is pending or, to the  knowledge  of St.
                  Laurent  threatened,  except where not being in full force and
                  effect or the violation,  suspension or  cancellation  of such
                  permits,  individually  or in the aggregate,  would not have a
                  Material Adverse Effect on St. Laurent.

         (v)      REGISTRATION  RIGHTS.  No holder of  securities  issued by St.
                  Laurent  has any right to compel St.  Laurent to  register  or
                  otherwise qualify such securities for public sale in Canada or
                  the United States.

         (w)      CERTAIN BUSINESS  PRACTICES.  To the knowledge of St. Laurent,
                  none of St. Laurent, any of its subsidiaries or any directors,
                  officers,  agents or  employees  of St.  Laurent or any of its
                  subsidiaries   has   (i)   used   any   funds   for   unlawful
                  contributions, gifts, entertainment or other unlawful expenses
                  related to political activity,  (ii) made any unlawful payment
                  to foreign or domestic government officials or employees or to


<PAGE>

                  foreign or domestic  political parties or campaigns,  or (iii)
                  made any other unlawful payment, except for such matters which
                  would not  individually  or in the  aggregate  have a Material
                  Adverse Effect on St. Laurent.

         (x)      MATERIAL  CONTRACTS.  Each agreement,  contract or arrangement
                  which is material to the business or operations of St. Laurent
                  and its subsidiaries taken as a whole (a "MATERIAL  CONTRACT")
                  is valid and  binding  on St.  Laurent  (or,  to the  extent a
                  subsidiary of St. Laurent is a party,  such subsidiary) and is
                  in full force and effect,  and St. Laurent and each subsidiary
                  have   performed  in  all   material   respects  all  material
                  obligations  required  to be  performed  by  them  under  each
                  Material Contract, except where the failure to do so would not
                  individually  or in  the  aggregate  have a  Material  Adverse
                  Effect on St. Laurent.

SECTION 3.2       REPRESENTATIONS AND WARRANTIES OF THE SSCC PARTIES.

(1)      The SSCC Parties, on a solidary basis,  represent and warrant to and in
         favour of St.  Laurent as follows and  acknowledge  that St. Laurent is
         relying upon such representations and warranties in connection with the
         matters contemplated by this Agreement:

         (a)   ORGANIZATION.  Each of the SSCC  Parties  and the  SSCC  Material
               Subsidiaries  has been  duly  incorporated  or  formed  under all
               applicable Laws, is validly subsisting and in good standing under
               the laws of the jurisdiction of its incorporation or organization
               and has full  corporate  or legal power and  authority to own its
               properties  and conduct its  businesses  as  currently  owned and
               conducted.  Each of the SSCC and the SSCC  Material  Subsidiaries
               are duly  qualified  or  licensed as foreign  corporations  to do
               business,  and are in good standing,  in each jurisdiction  where
               the character of the properties owned, leased or operated by them
               or the  nature of their  business  makes  such  qualification  or
               licensing necessary,  except for such failures to be so qualified
               or licensed and in good standing that would not,  individually or
               in the  aggregate,  have a Material  Adverse  Effect.  All of the
               outstanding shares of capital stock and other ownership interests
               of SSCC's  subsidiaries  which are held directly or indirectly by
               SSCC are validly issued,  fully paid and  non-assessable  and all
               such shares and other  ownership  interests are owned directly or
               indirectly  by SSCC,  free and clear of all Liens.  Except as set
               forth in the SSCC  Disclosure  Letter,  there are no  outstanding
               options,  rights,  entitlements,  understandings  or  commitments
               (contingent or otherwise) regarding the right to acquire any such
               shares or other  ownership  interests in any of the SSCC Material
               Subsidiaries.

          (b)  CAPITALIZATION.  The  authorized  capital of SSCC consists of 400
               million  common  shares and 25 million  preferred  shares.  As of
               February  18, 2000,  there were  218,183,007  SSCC Common  Shares
               issued  and  outstanding.   Except  for  employee  stock  options
               pursuant to employee  compensation plans or as Publicly Disclosed
               by SSCC or the SSCC  Disclosure  Letter,  there  are no  options,
               warrants,  conversion  privileges  or other  rights,  agreements,
               arrangements   or   commitments   (pre-emptive,   contingent   or
               otherwise)  obligating  SSCC to  issue  or  sell  any  shares  or
               securities  or  obligations  of  any  kind  convertible  into  or
               exchangeable  for any shares of SSCC. All outstanding SSCC Common
               Shares  have been duly  authorized  and are  validly  issued  and
               outstanding as fully paid and non-assessable shares, and, subject
               to the SSCC Disclosure Letter, free of pre-emptive rights.  There
               are no  outstanding  bonds,  debentures  or  other  evidences  of
               indebtedness  of SSCC  having  the  right  to vote  (or  that are
               convertible for or exercisable  into securities  having the right
               to  vote)  with the  holders  of the SSCC  Common  Shares  on any
               matter.  Other than under employee stock option plans or Publicly
               Disclosed by SSCC or in the SSCC Disclosure Letter,  there are no
               outstanding contractual obligations of SSCC to repurchase, redeem
               or otherwise  acquire any of its  outstanding  securities or with
               respect  to  the  voting  or  disposition   of  any   outstanding
               securities of any of the SSCC Material Subsidiaries.

         (c)   AUTHORITY AND NO VIOLATION.

               (i)         Each of the SSCC Parties has the requisite  corporate
                           power and authority to enter into this  Agreement and
                           to perform its obligations  hereunder.  The execution
                           and  delivery of this  Agreement  by each of the SSCC
                           Parties  and the  consummation  by  each of the  SSCC
                           Parties  of the  transactions  contemplated  by  this
                           Agreement have been duly authorized by its respective
                           Board of Directors and no other corporate proceedings
                           (including a vote or approval by the shareholders) on
                           its part are necessary to authorize this Agreement or
                           the transactions contemplated hereby.

               (ii)        This  Agreement  has been duly executed and delivered
                           by each  of the  SSCC  Parties  and  constitutes  its
                           legal,  valid  and  binding  obligation,  enforceable
                           against it in accordance  with its terms,  subject to
                           bankruptcy,  insolvency  and  other  applicable  Laws
                           affecting creditors' rights generally, and to general
                           principles of equity.

               (iii)       Except  as set forth in the SSCC  Disclosure  Letter,
                           the approval of this  Agreement,  the  execution  and
                           delivery  by  each  of  the  SSCC   Parties  of  this
                           Agreement   and   the   performance   by  it  of  its
                           obligations  hereunder  and  the  completion  of  the
                           Arrangement   and   the   transactions   contemplated
                           thereby, will not:

                           (A)      result in a violation or breach of,  require
                                    any consent, vote or approval to be obtained
                                    under  or  give  rise  to  any  termination,
                                    purchase   or   sale   rights   or   payment
                                    obligation under any provision of:

                                    (I)     its    or    any    SSCC    Material
                                            Subsidiary's      certificate     of
                                            incorporation,  articles, by-laws or
                                            other charter  documents,  including
                                            any unanimous  shareholder agreement
                                            or   any    other    agreement    or
                                            understanding  relating to ownership
                                            of shares or other  interests  or to
                                            corporate  governance with any party
                                            holding an ownership interest in any
                                            SSCC Material Subsidiary;

                                    (II)    subject to obtaining the Appropriate
                                            Regulatory Approvals relating to the
                                            SSCC Parties,  any Laws, judgment or
                                            decree   applicable   to  the   SSCC
                                            Parties or any of the SSCC  Material
                                            Subsidiaries   or   by   which   any
                                            property   or  assets  of  the  SSCC
                                            Parties or any of the SSCC  Material
                                            Subsidiaries  is bound or  affected,
                                            except  to  the   extent   that  the
                                            violation  or breach  of, or failure
                                            to obtain  any  consent  under,  any
                                            Laws,  judgment or decree would not,
                                            individually  or in  the  aggregate,
                                            have a  Material  Adverse  Effect on
                                            SSCC; or

                                    (III)   subject to obtaining the Appropriate
                                            Regulatory Approvals relating to the
                                            SSCC  Parties  and  except  as would
                                            not,    individually   or   in   the
                                            aggregate,  have a Material  Adverse
                                            Effect  on SSCC  or a SSCC  Material
                                            Subsidiary,  any material  contract,
                                            agreement,   license,  franchise  or
                                            permit  to  which  SSCC or any  SSCC
                                            Material Subsidiary is a party or by
                                            which  SSCC  or  any  SSCC  Material
                                            Subsidiary, or any property or asset
                                            of   SSCC  or  any   SSCC   Material
                                            Subsidiary is bound or is subject or
                                            is the beneficiary;

                           (B)      give  rise to any  right of  termination  or
                                    acceleration  of  indebtedness  of any  SSCC
                                    Party or any SSCC  Material  Subsidiary,  or
                                    cause such  indebtedness  to come due before
                                    its stated  maturity or cause any  available
                                    credit  of  any  SSCC   Party  or  any  SSCC
                                    Material   Subsidiary   to   cease   to   be
                                    available; or

                           (C)      except as would not,  individually or in the
                                    aggregate, have a Material Adverse Effect on
                                    SSCC,  result in the  imposition of any Lien
                                    upon any of its  assets or the assets of any
                                    SSCC  Material   Subsidiary,   or  restrict,
                                    hinder,  impair or limit the  ability of any
                                    SSCC Party or any SSCC  Material  Subsidiary
                                    to carry on the  business as and where it is
                                    now being carried on.

               (iv)        No consent,  approval,  order or authorization of, or
                           declaration or filing with, any  Governmental  Entity
                           is required to be obtained by any of the SSCC Parties
                           or the SSCC Material  Subsidiaries in connection with
                           the execution  and delivery of this  Agreement or the
                           consummation  by  any  of  the  SSCC  Parties  of the
                           transactions  contemplated  hereby other than (A) the
                           Appropriate Regulatory Approvals relating to the SSCC
                           Parties,  and  (B)  any  other  consents,  approvals,
                           orders, authorizations, declarations or filings of or
                           with a  Governmental  Entity which,  if not obtained,
                           would not,  individually or in the aggregate,  have a
                           Material Adverse Effect on SSCC.

         (d)   ABSENCE  OF  CERTAIN  CHANGES  OR  EVENTS.   Except  as  Publicly
               Disclosed  by SSCC,  since  December 31, 1998 through to the date
               hereof each of the SSCC Parties and each SSCC Material Subsidiary
               has  conducted  its  business  only in the  ordinary  and regular
               course of business  consistent  with past  practice and there has
               not occurred:

               (i)         a Material Adverse Change with respect to SSCC;

               (ii)        any  agreement  or  arrangement  to take  any  action
                           which, if taken prior to the date hereof,  would have
                           made any representation or warranty set forth in this
                           Agreement  materially  untrue or  incorrect as of the
                           date when made;

               (iii)       any resolution to approve a split, combination or
                           reclassification of the SSCC Common Shares; or

               (iv)
                           any material change in its accounting methods,
                           principles or practices.

         (e)   FINANCIAL   STATEMENTS.   The  audited   consolidated   financial
               statements  (including  any notes  thereto)  of SSCC for the year
               ended December 31, 1998 and the unaudited  consolidated financial
               statements for the 9-month  period ended  September 30, 1999 have
               been prepared in accordance with United States generally accepted
               accounting  principles  applied on a consistent  basis throughout
               the periods  indicated  (except as may be  indicated in the notes
               thereto)  (subject,  in the  case  of  such  unaudited  financial
               statements to normal and  recurring  year-end  adjustments  which
               were not and are not expected,  individually or in the aggregate,
               to be  material  in amount and the  absence  of certain  footnote
               disclosures),   the   requirements  of  applicable   Governmental
               Entities and applicable  Securities  Legislation;  such financial
               statements  present  fairly,  in  all  material   respects,   the
               consolidated  financial  position,   results  of  operations  and
               cash-flows  of SSCC  and its  subsidiaries  as of the  respective
               dates thereof and for the  respective  periods  covered  thereby,
               subject,  in the case of such unaudited  financial  statements to
               normal and recurring year-end  adjustments which were not and are
               not expected, individually or in the aggregate, to be material in
               amount.

         (f)   ABSENCE OF  UNDISCLOSED  LIABILITIES.  Except as disclosed in the
               SSCC Financial Statements, or as Publicly Disclosed by SSCC or as
               incurred in the ordinary course of business, neither SSCC nor any
               of  the  SSCC  Material   Subsidiaries  has  any  liabilities  or
               obligations  of any  nature  (absolute,  accrued,  contingent  or
               otherwise)  which either  individually  or in the aggregate,  are
               material  in  amount to SSCC and the SSCC  Material  Subsidiaries
               taken as a whole.

         (g)   REPORTS.  SSCC and each SSCC Material  Subsidiary  has filed with
               the SEC all forms, reports,  schedules,  registration  statements
               and definitive proxy  statements (the "SEC REPORTS")  required to
               be filed by SSCC and each SSCC Material  Subsidiary  with the SEC
               since December 31, 1998. As of their  respective  dates,  the SEC
               Reports  complied in all material  respects with the requirements
               of the Exchange Act or the 1933 Act and the rules and regulations
               of the SEC promulgated thereunder applicable, as the case may be,
               to such SEC Reports,  and none of the SEC Reports  contained  any
               untrue  statement  of a  material  fact  or  omitted  to  state a
               material fact required to be stated  therein or necessary to make
               the statements  made therein,  in light of the  circumstances  in
               which they were made, not misleading.

         (h)   SSCC COMMON SHARES.  The SSCC Common Shares to be issued pursuant
               to the  Arrangement or upon the exercise from time to time of the
               Replacement  Options  will,  in all  cases,  be duly and  validly
               issued by SSCC on their  respective  dates of issue as fully paid
               and non-assessable shares.

         (i)   COMPLIANCE WITH LAWS.  Except as disclosed in the SSCC Disclosure
               Letter or Publicly  Disclosed by SSCC, SSCC and the SSCC Material
               Subsidiaries  have  complied with and are not in violation of any
               applicable  Laws,  orders,   judgments  and  decrees  other  than
               non-compliance or violations which would not,  individually or in
               the aggregate,  have a Material  Adverse Effect on SSCC.  Without
               limiting the generality of the foregoing,  all securities of SSCC
               (including   all  options,   rights  or  other   convertible   or
               exchangeable  securities)  have been issued in  compliance in all
               material respects with all applicable Securities  Legislation and
               all  securities  to be issued upon  exercise of any such options,
               rights and other  convertible or exchangeable  securities will be
               issued in compliance with all applicable Securities Legislation.

         (j)   LITIGATION,  ETC.  Except  as  disclosed  in the SSCC  Disclosure
               Letter or  Publicly  Disclosed  by SSCC,  there is  currently  no
               claim, action,  proceeding or investigation (including any native
               land claims)  pending or, to the  knowledge  of SSCC,  threatened
               against or affecting SSCC or any SSCC Material  Subsidiary before
               any  court or  Governmental  Entity  that,  could  reasonably  be
               expected to have a Material Adverse Effect on SSCC, or prevent or
               materially delay consummation of the transactions contemplated by
               this  Agreement  or the  Arrangement.  Neither  SSCC nor any SSCC
               Material Subsidiary,  nor their respective assets and properties,
               is subject to any outstanding  judgment,  order, writ, injunction
               or decree that has had or is reasonably likely to have a Material
               Adverse Effect on SSCC or that would prevent or materially  delay
               consummation of the  transactions  contemplated by this Agreement
               or the Arrangement.

         (k)   INFORMATION  SUPPLIED.  Neither the information supplied or to be
               supplied  in  writing  by or on  behalf  of any  SSCC  Party  for
               inclusion,  nor the  information  incorporated  by reference from
               documents  filed by a SSCC Party with the SEC, in the Circular or
               any other  document to be filed by any SSCC Party or St.  Laurent
               with the SEC or any other Governmental  Entity in connection with
               the  transactions  contemplated  hereby will,  on the date of its
               filing,  or, with respect to the  Circular,  as of the date it is
               mailed to the  holders  of the St.  Laurent  Common  Shares,  St.
               Laurent Options, St. Laurent RSUs and St. Laurent Warrants and as
               of the  date of the  St.  Laurent  Meeting,  contain  any  untrue
               statement of a material  fact or omit to state any material  fact
               required to be stated  therein or  necessary in order to make the
               statements  therein,  in light of the  circumstances  under which
               they are made, not misleading.

SECTION 3.3       SURVIVAL.

         For  greater  certainty,  the  representations  and  warranties  of St.
Laurent and each SSCC Party  contained  herein shall  survive the  execution and
delivery of this Agreement and shall terminate on the earlier of the termination
of this  Agreement in accordance  with Section 6.3 and the Effective  Time.  Any
investigation by a party hereto and its advisors shall not mitigate, diminish or
affect the representations and warranties of another party to this Agreement.

                                    ARTICLE 4
                                    COVENANTS

SECTION 4.1       RETENTION OF GOODWILL.

         During the  Pre-Effective  Date Period,  St.  Laurent will  continue to
carry on the business of St. Laurent and its subsidiaries in a manner consistent
with prior  practice,  using all  reasonable  efforts to preserve the  attendant
goodwill of such entities and to contribute to retention of that goodwill to and
after the  Effective  Date,  but  subject to the  following  provisions  of this
Article 4. The  following  provisions  of this  Article 4 are  intended to be in
furtherance of this general commitment.

SECTION 4.2       MATERIAL COMMITMENTS.

         Subject to applicable Law and the other  provisions of this  Agreement,
during the  Pre-Effective  Date Period,  St. Laurent and its  subsidiaries  will
consult  on an  ongoing  basis with  senior  officers  of SSCC in order that the
representatives  of SSCC will  become  more  familiar  with the  philosophy  and
techniques of St. Laurent and its  subsidiaries,  as well as with their business
and financial affairs and in order to provide  experience as a basis for ongoing
relationships following the Effective Date.

SECTION 4.3       COVENANTS OF ST. LAURENT.

(1)      St. Laurent  covenants and agrees that, until the Effective Date or the
         earlier  termination  of this  Agreement in accordance  with Article 6,
         except (i) with the  consent  of SSCC on behalf of the SSCC  Parties to
         any  deviation  therefrom,  which  consent  shall  not be  unreasonably
         withheld;  (ii) with respect to any matters which were disclosed in the
         St.  Laurent  Disclosure  Letter;  or (iii) with  respect to any matter
         contemplated  by this Agreement or the Plan of  Arrangement,  including
         the  transactions  involving  the  businesses  of St.  Laurent and SSCC
         contemplated  hereby, St. Laurent will, and will cause its subsidiaries
         to:

         (a)   carry on its  business  in, and only in, the ordinary and regular
               course in substantially  the same manner as heretofore  conducted
               and,  to the  extent  consistent  with  such  business,  use  all
               reasonable  efforts  to  preserve  intact  its  present  business
               organization  and keep  available  the  services  of its  present
               officers and employees and others having  business  dealings with
               it to the end that its goodwill and business shall be maintained;

         (b)   not commence to undertake a substantial expansion of its business
               facilities  that is out of the  ordinary  and  regular  course of
               business;

         (c)   not split, combine or reclassify any of the outstanding shares of
               St.  Laurent nor  declare,  set aside or pay any  dividends on or
               make any other  distributions on or in respect of the outstanding
               shares of St. Laurent;

         (d)   not amend the  articles or by-laws of St.  Laurent or  materially
               amend the articles or by-laws of any subsidiary;

         (e)   not sell, pledge,  hypothecate,  encumber,  allot,  reserve,  set
               aside  or  issue,   authorize   or  propose  the  sale,   pledge,
               encumbrance,  allotment,  reservation,  setting aside or issuance
               of, or purchase or redeem or propose the  purchase or  redemption
               of, any shares in its capital stock or of any subsidiary  thereof
               or any class of securities  convertible or exchangeable  into, or
               rights,  warrants or options to acquire, any such shares or other
               convertible   or   exchangeable   securities,   except   for  (a)
               transactions   between  two  or  more  wholly-owned  St.  Laurent
               subsidiaries or between a wholly-owned  subsidiary of St. Laurent
               and St.  Laurent;  (b) the issuance of St.  Laurent Common Shares
               pursuant to fully vested St.  Laurent  Options or pursuant to the
               exercise of St.  Laurent  RSUs or St.  Laurent  Warrants  granted
               prior to the date  hereof;  and (c) the  purchase of St.  Laurent
               Common Shares with respect to the St.  Laurent  Directors'  Stock
               Option and Purchase Plan, the St. Laurent Employee Share Purchase
               Plan (Canada)  and/or the St. Laurent  subsidiary  Stock Purchase
               Plan (U.S.);

         (f)   not,  whether  through  its  Board  of  Directors  or  otherwise,
               accelerate  the vesting of any  unvested St.  Laurent  Options or
               accelerate  the release of, or the expiry date of any hold period
               relating  to,  any  St.  Laurent  Common  Shares  held in the St.
               Laurent Share Purchase Plans, or otherwise amend,  vary or modify
               such plans or such other plans relating to the Options;

         (g)   not  reorganize,  amalgamate  or merge St.  Laurent or any of its
               subsidiaries  with any  other  Person,  nor  acquire  or agree to
               acquire  by   amalgamating,   merging  or   consolidating   with,
               purchasing  substantially all of the assets of or otherwise,  any
               business of any  corporation,  partnership,  association or other
               business  organization  or division  thereof,  which  acquisition
               would be material to its  business or  financial  condition  on a
               consolidated  basis (other than relating to transactions  between
               two or more  wholly-owned  St. Laurent  subsidiaries or between a
               wholly-owned subsidiary of St. Laurent and St. Laurent);

         (h)   except with  respect to the sale of assets of St.  Laurent or any
               subsidiary  in the ordinary and regular  course of business,  not
               sell, pledge,  hypothecate,  encumber, lease or otherwise dispose
               of any  material  assets  (other than  relating  to  transactions
               between two or more  wholly-owned  St.  Laurent  subsidiaries  or
               between a wholly-owned subsidiary of St. Laurent and St. Laurent)
               or create or cause to be created any Lien, except in the ordinary
               and regular course of business;

         (i)   not  guarantee  the payment of material  indebtedness  of Persons
               other than its  subsidiaries or incur material  indebtedness  for
               money borrowed or issue or sell any debt securities except in the
               ordinary and regular course of business;

         (j)   carry out the  terms of the  Interim  Order  and the Final  Order
               applicable  to it  and  use  its  reasonable  efforts  to  comply
               promptly with all  requirements  which applicable Laws may impose
               on  St.  Laurent  or  its   subsidiaries   with  respect  to  the
               transactions contemplated hereby and by the Arrangement;


         (k)   not, and cause each of its subsidiaries not:

               (i)         other than in the usual,  ordinary and regular course
                           of  business  or  pursuant  to  existing  employment,
                           pension,     supplemental    pension,    termination,
                           compensation  arrangements or policies, enter into or
                           materially   modify   any   employment,    severance,
                           collective bargaining or similar agreements, policies
                           or arrangements  with, or grant any material bonuses,
                           salary   increases,   stock   options,   pension   or
                           supplemental   pension   benefits,   profit  sharing,
                           retirement    allowances,    deferred   compensation,
                           incentive compensation,  severance or termination pay
                           to, or make any loan to, any officers or directors of
                           it; or

               (ii)        otherthan in the usual, ordinary and regular course
                           of business or pursuant  to  existing   employment,
                           pension,  supplemental pension,  termination,
                           compensation  arrangements  or policies,  in the case
                           of employees who are not  officers or  directors,
                           take any action with  respect to the entering into or
                           modifying of any  material  employment,  severance,
                           collective bargaining or similar agreements, policies
                           or arrangements or with  respect  to the grant of any
                           material  bonuses,  salary increases, stock  options,
                           pension  or  supplemental  pension benefits,   profit
                           sharing,   retirement  allowances,   deferred
                           compensation,  incentive  compensation,  severance or
                           termination pay or any other form of  compensation
                           or profit sharing or with respect to any increase of
                           benefits payable;

         (l)   subject to Section  4.3(1)(o),  not,  except in the  ordinary and
               regular  course of business:  (A) satisfy or settle any claims or
               liabilities prior to the same being due, except such as have been
               reserved against in St. Laurent Financial Statements or disclosed
               in the St. Laurent Disclosure Letter, which are,  individually or
               in the aggregate,  material;  (B) grant any waiver,  exercise any
               option  or   relinquish   any   contractual   rights  which  are,
               individually or in the aggregate, material; or (C) enter into any
               interest  rate,  currency  or  commodity  swaps,  hedges or other
               similar financial instruments;

         (m)   use its  reasonable  commercial  efforts  (or  cause  each of its
               subsidiaries to use reasonable  commercial  efforts) to cause its
               current insurance (or re-insurance)  policies not to be cancelled
               or terminated or any of the coverage  thereunder to lapse, unless
               simultaneously  with  such  termination,  cancellation  or lapse,
               replacement  policies  underwritten by insurance and re-insurance
               companies of nationally  recognized  standing  providing coverage
               equal  to or  greater  than the  coverage  under  the  cancelled,
               terminated or lapsed policies for substantially  similar premiums
               are in full force and effect;

         (n)   except for the settlement or compromise  amounts which  represent
               not more than  $1,000,000 in the  aggregate,  not, and will cause
               its  subsidiaries  not to, settle or compromise any claim brought
               by  any  present,  former  or  purported  holder  of  any  of its
               securities in connection  with the  transactions  contemplated by
               this Agreement or the Arrangement prior to the Effective Date;

         (o)   except  where  disclosure   would  violate  any   confidentiality
               arrangements  or  result  in the loss of any  client/solicitation
               privilege,  keep  SSCC  fully  informed  as to the  status of the
               discussions or any  developments  concerning the matters referred
               to in Section  3.1(1)(l)(i) of the St. Laurent  Disclosure Letter
               and not to settle or compromise  any penalty or fine imposed by a
               Governmental  Entity  in  connection  therewith  except  for  the
               settlement or compromise in respect of which St.  Laurent and its
               subsidiaries, as the case may be, shall have been indemnified;

         (p)   not, and will cause its subsidiaries not to, enter into or modify
               in any material  respect any contract,  agreement,  commitment or
               arrangement which new contract or series of related new contracts
               or  modification  to an  existing  contract  or series of related
               existing  contracts  would have a Material  Adverse Effect on St.
               Laurent;

         (q)   incur or commit to capital  expenditures  prior to the  Effective
               Date only in the ordinary course and not, in any event, exceeding
               by $12 million,  individually or in the aggregate those set forth
               in the St. Laurent Disclosure Letter;

         (r)   not make any changes to existing accounting practices relating to
               St.  Laurent  or any  subsidiary  except  as  required  by Law or
               required by generally accepted accounting  principles or make any
               material  Tax election or file any Tax return  inconsistent  with
               past practice; and

         (s)   promptly advise SSCC in writing:

               (i)         of any event occurring subsequent to the date of this
                           Agreement  that would  render any  representation  or
                           warranty of St.  Laurent  contained in this Agreement
                           (except any such  representation  or  warranty  which
                           speaks as of a date prior to the  occurrence  of such
                           event), if made on or as of the date of such event or
                           the  Effective  Date,  untrue  or  inaccurate  in any
                           material respect;

               (ii)        of any Material Adverse Change in respect of
                           St. Laurent; and

               (iii)       of any material breach by St. Laurent of any covenant
                           or agreement contained in this Agreement.

(2)      St.  Laurent  shall and shall  cause its  subsidiaries  to perform  all
         obligations required or desirable to be performed by St. Laurent or any
         of its  subsidiaries  under  this  Agreement,  co-operate  with SSCC in
         connection  therewith,  and do all such other acts and things as may be
         necessary or desirable in order to consummate  and make  effective,  as
         soon as reasonably practicable,  the transactions  contemplated in this
         Agreement and,  without  limiting the generality of the foregoing,  St.
         Laurent shall and where appropriate shall cause its subsidiaries to:

         (a)   use all reasonable efforts to obtain the approvals of St. Laurent
               Securityholders to the Arrangement including, by including in the
               Circular  the  unanimous   recommendation  of  the  disinterested
               directors of St. Laurent that St. Laurent Securityholders vote in
               favour of the Arrangement  Resolution,  subject,  however, to the
               exercise  by  the  Board  of  Directors  of  St.  Laurent  of its
               fiduciary duties as provided herein;

         (b)   waive the application of the provisions of the St. Laurent Rights
               Plan  (including  the separation of the rights  thereunder)  with
               respect to the transactions contemplated by the Arrangement;

         (c)   apply for and use all  reasonable  best  efforts  to  obtain  all
               Appropriate  Regulatory  Approvals relating to St. Laurent or any
               of its  subsidiaries  and,  in doing so, to keep SSCC  reasonably
               informed as to the status of the proceedings related to obtaining
               the Appropriate Regulatory Approvals,  including, but not limited
               to,  providing SSCC with copies of all related  applications  and
               notifications,  in draft  form,  in order for SSCC to provide its
               reasonable comments;

         (d)   apply for and use all  reasonable  efforts  to obtain the Interim
               Order and the Final Order;

         (e)   use its  reasonable  best efforts to defend and in defending  all
               lawsuits  or  other  legal,   regulatory  or  other   proceedings
               challenging or affecting this  Agreement or the  consummation  of
               the transactions contemplated hereby;

         (f)   use its  reasonable  best efforts to have lifted or rescinded any
               injunction  or  restraining   order  or  other  order  which  may
               adversely  affect the  ability of the parties to  consummate  the
               transactions contemplated hereby;

         (g)   effect all necessary  registrations,  filings and  submissions of
               information required by Governmental Entities from St. Laurent or
               any of its subsidiaries;

         (h)   use its  reasonable  efforts  to obtain  all  necessary  waivers,
               consents and approvals  required to be obtained by St. Laurent or
               a subsidiary  from other  parties to loan  agreements,  leases or
               other contracts; and

         (i)   use  its  reasonable   efforts  to  ensure  that  St.   Laurent's
               affiliates  (as defined in and for the purposes of Rule 145 under
               the 1933 Act)  execute  and  deliver to SSCC,  on or prior to the
               Effective Date, an Affiliate's Letter.

         St. Laurent agrees to provide, and will cause its subsidiaries and will
use  its  reasonable  efforts  to  cause  its  and  their  respective  officers,
employees, advisors and representatives to provide, all necessary cooperation in
connection  with (i) the  arrangement of any financing by the SSCC Parties to be
consummated in connection with the transactions  contemplated by this Agreement,
(ii) any amendments or waivers required under SSCC's existing credit  facilities
and (iii) a  reorganization  (whether  by  merger,  asset or stock  transfer  or
amalgamation)  of St.  Laurent and its  subsidiaries  made or implemented at the
request of the SSCC Parties to satisfy financing  requirements and to effect tax
and  other   efficiencies  for  the  SSCC  Parties  (and  St.  Laurent  and  its
subsidiaries  assuming the consummation of the Arrangement),  on or prior to the
Effective Time; PROVIDED,  HOWEVER,  (A) prior to any such reorganization,  SSCC
and St. Laurent shall agree upon the terms of an indemnity agreement in favor of
St. Laurent and its  subsidiaries  indemnifying St. Laurent and its subsidiaries
in the  event the  Arrangement  is not  consummated  from any  losses,  costs or
expenses incurred by St. Laurent or any of its subsidiaries which would not have
been so incurred but for the  reorganization  and (B) any transactions  effected
pursuant  to  such  reorganization   shall  not  be  covered  by  St.  Laurent's
representations  and warranties  contained in Article 3 of this Agreement or St.
Laurent's other covenants  contained in Article 4 of this Agreement or otherwise
expand St. Laurent's liability under this Agreement.

SECTION 4.4       COVENANTS OF THE SSCC PARTIES.

(1)      Each of the SSCC Parties  hereby on a solidary  basis  covenants  and
         agrees  (and,  if  applicable,  will cause its subsidiaries):

         (a)
               to perform all obligations  required or desirable to be performed
               by it under this  Agreement,  to co-operate  with St.  Laurent in
               connection therewith, and to do all such other acts and things as
               may be necessary or  desirable  in order to  consummate  and make
               effective,  as soon as reasonably  practicable,  the transactions
               contemplated  by  this  Agreement  and,   without   limiting  the
               generality of the foregoing, to:

               (i)         apply  for and use all  reasonable  best  efforts  to
                           obtain all Appropriate  Regulatory Approvals relating
                           to the SSCC  Parties,  and,  in doing so, to keep St.
                           Laurent  reasonably  informed as to the status of the
                           proceedings  related  to  obtaining  the  Appropriate
                           Regulatory Approvals,  including, but not limited to,
                           providing  St.  Laurent  with  copies of all  related
                           applications  and  notifications,  in draft form,  in
                           order  for St.  Laurent  to  provide  its  reasonable
                           comments;

               (ii)        use its  reasonable  best  efforts  to defend  and in
                           defending all lawsuits or other legal,  regulatory or
                           other  proceedings to which it is a party challenging
                           or affecting  this Agreement or the  consummation  of
                           the transactions contemplated hereby;

               (iii)       use all  reasonable  best  efforts to have  lifted or
                           rescinded  any  injunction  or  restraining  order or
                           other order  relating to the SSCC  Parties  which may
                           adversely  affect  the  ability  of  the  parties  to
                           consummate the transactions contemplated hereby;

               (iv)        effect all necessary registrations, filings and
                           submissions of information required by Governmental
                           Entities from the SSCC Parties or their subsidiaries;
                           and

               (v)         cause  SSCC to  reserve a  sufficient  number of SSCC
                           Common Shares for issuance upon the completion of the
                           Arrangement  and the  exercise  from  time to time of
                           Replacement Options;

         (b)   carry  out  the  terms  of the  Interim  Order  and  Final  Order
               applicable  to it  and  use  its  reasonable  efforts  to  comply
               promptly with all  requirements  which applicable Laws may impose
               on SSCC or its  subsidiaries  with  respect  to the  transactions
               contemplated hereby and by the Arrangement;

         (c)   in  connection  with  the   consummation   of  the   transactions
               contemplated  hereby and by the  Arrangement,  use its reasonable
               efforts to obtain all necessary  waivers,  consents and approvals
               required  to be  obtained  by SSCC or a  subsidiary  of SSCC from
               other parties to loan  agreements,  leases or other contracts and
               take all  reasonable  steps to obtain the financing  necessary to
               pay the cash portion of the Exchange Consideration;

         (d)   to  use  reasonable  best  efforts  to  cause  Jefferson  Smurfit
               Corporation (U.S.) and Stone Container  Corporation to obtain, as
               soon as possible,  but no later than March 25, 2000, the consents
               from their respective banking  syndicates  required to consummate
               the transactions contemplated by the Arrangement; and

         (e)   until  the  Effective  Date or the  earlier  termination  of this
               Agreement  in  accordance  with  Article  6,  except (i) with the
               consent of St.  Laurent to any deviation  therefrom,  which shall
               not be  unreasonably  withheld;  (ii) with respect to any matters
               which  were  disclosed  by SSCC to St.  Laurent in writing in the
               SSCC  Disclosure  Letter;  or (iii)  with  respect  to any matter
               contemplated  by  this  Agreement  or the  Plan  of  Arrangement,
               including  the  transactions  involving  the  businesses  of  St.
               Laurent and SSCC contemplated hereby, SSCC will:

               (i)         not split, combine or reclassify any of the
                           outstanding shares of SSCC nor declare,  set aside or
                           pay any dividends on or make any other distributions
                           on or in respect of the outstanding shares of SSCC;

               (ii)        promptly advise St. Laurent in writing:

                           (A)      of any  event  occurring  subsequent  to the
                                    date of this Agreement that would render any
                                    representation or warranty of SSCC contained
                                    in   this   Agreement   (except   any   such
                                    representation  or warranty  which speaks as
                                    of a date  prior to the  occurrence  of such
                                    event), if made on or as of the date of such
                                    event  or  the  Effective  Date,  untrue  or
                                    inaccurate in any material respect;

                           (B)      of any Material Adverse Change in respect of
                                    SSCC; and

                           (C)      of any material breach by SSCC of any
                                    covenant or agreement contained in this
                                    Agreement;

               (iii)       not make any changes to existing accounting practices
                           related  to SSCC  except as  required  by a change in
                           United States generally accepted  accounting practice
                           or by applicable Law; and

               (iv)        not  reorganize,  amalgamate,  or merge SSCC with any
                           other Person, nor acquire by amalgamating, merging or
                           consolidating  with,  purchasing a majority of voting
                           securities or  substantially  all of the assets of or
                           otherwise,  any business or Person which  acquisition
                           would result in SSCC's  financing  commitment for the
                           Arrangement  being  terminated  or withdrawn  and not
                           being replaced.

SECTION 4.5       COVENANTS REGARDING NON-SOLICITATION.

(1)      Except as expressly provided herein, St. Laurent shall not, directly or
         indirectly, and shall use its best efforts to cause its representatives
         not to, (a) solicit,  initiate or knowingly encourage (including by way
         of  furnishing  information  or  entering  into any form of  agreement,
         arrangement  or  understanding)  the  initiation  of any  inquiries  or
         proposals  regarding an Acquisition  Proposal,  (b)  participate in any
         discussions or  negotiations  regarding any Acquisition  Proposal,  (c)
         withdraw  or modify in a manner  adverse  to SSCC the  approval  of the
         Board of  Directors  of St.  Laurent of the  transactions  contemplated
         hereby, (d) approve or recommend any Acquisition  Proposal or (e) enter
         into  any  agreement,  arrangement  or  understanding  related  to  any
         Acquisition  Proposal.  Notwithstanding  the  preceding  part  of  this
         Section 4.5(1) and any other provision of this Agreement but subject to
         the  provisions of Section  4.5(2),  nothing shall prevent the Board of
         Directors of St.  Laurent prior to the issuance of the Final Order from
         considering,  participating  in any  discussions  or  negotiations,  or
         entering into a  confidentiality  agreement  and providing  information
         pursuant to Section 4.5(3),  regarding an unsolicited BONA FIDE written
         Acquisition  Proposal  that did not  otherwise  result from a breach of
         this  Section  4.5 and  that  the  Board of  Directors  of St.  Laurent
         determines in good faith,  after  consultation with financial  advisors
         and  outside  counsel,  is  reasonably  likely to result in a  Superior
         Proposal;  provided,  however,  that prior to taking such  action,  the
         Board of Directors must receive written opinion of outside counsel that
         it is appropriate  that the Board of Directors of St. Laurent take such
         action in order to discharge properly its fiduciary duties. St. Laurent
         shall  not  consider,   negotiate,  accept,  approve  or  recommend  an
         Acquisition Proposal after the date of the issuance of the Final Order.
         St. Laurent shall, and shall cause the officers, directors,  employees,
         representatives  and agents of St.  Laurent  and its  subsidiaries  to,
         cease  immediately  all  discussions  and  negotiations  regarding  any
         proposal  received  prior  to the  execution  of  this  Agreement  that
         constitutes,  or may  reasonably be expected to lead to, an Acquisition
         Proposal.

(2)      St.  Laurent  shall  promptly  notify SSCC, at first orally and then in
         writing,  of any  Acquisition  Proposal  and  any  inquiry  that  could
         reasonably  be  expected  to lead to an  Acquisition  Proposal,  or any
         amendments to the foregoing,  or any request for non-public information
         relating to St. Laurent or any Material  Subsidiary in connection  with
         an  Acquisition  Proposal  or for  access to the  properties,  books or
         records of St.  Laurent or any Material  Subsidiary  by any Person that
         informs St. Laurent or such subsidiary  that it is considering  making,
         or has made,  an  Acquisition  Proposal.  Such notice  shall  include a
         description  of the  material  terms  and  conditions  of any  proposal
         (including  a copy of any written  proposal),  and the  identity of the
         Person making such proposal,  inquiry or contact. St. Laurent shall (i)
         keep SSCC  fully  informed  of the status  including  any change to the
         material  terms of any such  Acquisition  Proposal  or inquiry and (ii)
         provide  to SSCC  as soon as  practicable  after  receipt  or  delivery
         thereof with copies of all  correspondence  and other written  material
         sent or provided to St.  Laurent or any  Material  Subsidiary  from any
         Person in connection with any Acquisition  Proposal sent or provided by
         St. Laurent to any Person in connection with any Acquisition  Proposal.
         SSCC shall treat any documents received pursuant to this Section 4.5(2)
         as  confidential  information in accordance  with the provisions of the
         Confidentiality Agreements.

(3)      If St. Laurent receives a request for material  non-public  information
         from a Person who has made an unsolicited BONA FIDE written Acquisition
         Proposal and St. Laurent is permitted, as contemplated under the second
         sentence of Section 4.5(1),  to negotiate the terms of such Acquisition
         Proposal,  then,  and only in such case,  the Board of Directors of St.
         Laurent   may,   subject  to  the   execution   by  such  Person  of  a
         confidentiality    agreement    containing   a   standstill   provision
         substantially   similar  to  that  contained  in  the   Confidentiality
         Agreements,  provide such Person with access to  information  regarding
         St. Laurent; provided,  however, that the Person making the Acquisition
         Proposal shall not be precluded  under such  confidentiality  agreement
         from making the  Acquisition  Proposal (but not any material  amendment
         thereto,  which  shall be  treated  for the  purposes  hereof  as a new
         Acquisition  Proposal)  and provided  further that St.  Laurent sends a
         copy of any such  confidentiality  agreement to SSCC  promptly upon its
         execution  and  SSCC  is  provided  with a  list  of or  copies  of the
         information  provided  to such  Person and  immediately  provided  with
         access to similar information to which such Person was provided.

(4)      St.  Laurent  shall  ensure  that its  officers,  directors  and senior
         employees and its subsidiaries and their officers, directors and senior
         employees   and  any   financial   advisors   or  other   advisors   or
         representatives  retained  by it are  aware of the  provisions  of this
         Section 4.5, and it shall be responsible for any breach of this Section
         4.5 by its officers, directors,  employees, financial advisors or other
         advisors or representatives.

(5)      Notwithstanding  Section 4.5(1)(c),  the  Board of  Directors  of
         St.  Laurent  may  withdraw  or modify in a manner adverse to SSCC the
         approval of the Board of Directors of St. Laurent of the transactions
         contemplated  hereby if a Specified SSCC Event has occurred and is
         continuing.

SECTION 4.6       NOTICE BY ST. LAURENT OF SUPERIOR PROPOSAL DETERMINATION.

(1)      Provided that the  provisions of Section  4.5(1) and Section 4.5(2) are
         complied with, St. Laurent may accept, approve, recommend or enter into
         any agreement in respect of a Superior Proposal if, and only if, (i) it
         has provided SSCC with a copy of the Superior Proposal  document,  (ii)
         five  Business  Days shall have elapsed from the later of the date SSCC
         received  written  notice  advising  SSCC that St.  Laurent's  Board of
         Directors  has resolved,  subject only to compliance  with this Section
         4.6 and termination of this Agreement, to accept, approve, recommend or
         enter  into  an  agreement  in  respect  of  such  Superior   Proposal,
         specifying  the terms and  conditions  of such  Superior  Proposal  and
         identifying the Person making such Superior Proposal, and the date SSCC
         received a copy of such Superior  Proposal and (iii) it has  previously
         or  concurrently  will  have (A) paid to SSCC the  break  fee,  if any,
         payable under Section 6.4 and (B) terminated this Agreement pursuant to
         Section 6.3. Any  information  provided by St. Laurent to SSCC pursuant
         to this  Section  4.6 or  pursuant  to  Section  4.5  shall  constitute
         "Information" under Section 4.7(2).

(2)      During such five  Business  Day period,  St.  Laurent  agrees that SSCC
         shall have the  right,  but not the  obligation,  to offer to amend the
         terms of this  Agreement.  The Board of Directors  of St.  Laurent will
         review any offer by SSCC to amend the terms of this  Agreement  in good
         faith in order to determine,  in its  discretion in the exercise of its
         fiduciary  duties,  whether SSCC's offer upon acceptance by St. Laurent
         would  result  in  such  Superior  Proposal  ceasing  to be a  Superior
         Proposal.  If the Board of Directors of St. Laurent so  determines,  it
         will  enter  into an  amended  agreement  with SSCC  reflecting  SSCC's
         amended proposal. If the Board of Directors of St. Laurent continues to
         believe,  in good faith and after  consultation with financial advisors
         and outside  counsel,  that such Superior  Proposal  remains a Superior
         Proposal and therefore rejects SSCC's amended proposal, St. Laurent may
         terminate  this  Agreement  pursuant  to Section  6.3(3)(d);  provided,
         however,  that St. Laurent must concurrently pay or cause to be paid to
         SSCC the break fee, if any,  payable to SSCC under Section 6.4 and must
         concurrently  with termination  enter into a definitive  agreement with
         respect to such  Acquisition  Proposal.  St. Laurent  acknowledges  and
         agrees that payment of the break fee, if any, payable under Section 6.4
         is a condition to valid  termination  of this  Agreement  under Section
         6.3(3)(d) and this Section 4.6.

(3)      St.  Laurent  also   acknowledges   and  agrees  that  each  successive
         modification  relating to an increase in the  consideration  offered or
         any  other  material  provision  of  any  Acquisition   Proposal  shall
         constitute a new  Acquisition  Proposal for purposes of the requirement
         under  clause (ii) of this Section 4.6 to initiate an  additional  five
         Business Day notice period.

SECTION 4.7       ACCESS TO INFORMATION.

(1)      Subject to Section 4.7(2) and Section 4.7(3) and applicable  Laws, upon
         reasonable  notice,  St.  Laurent  shall (and  shall  cause each of its
         subsidiaries   to)  afford   SSCC's   officers,   employees,   counsel,
         accountants   and  other   authorized   representatives   and  advisors
         ("REPRESENTATIVES")  access, during normal business hours from the date
         hereof and until the earlier of the Effective  Date or the  termination
         of this Agreement,  to its properties,  books, contracts and records as
         well as to its  management  personnel,  and,  during such  period,  St.
         Laurent  shall (and shall  cause each of its  subsidiaries  to) furnish
         promptly to SSCC all  information  concerning St.  Laurent's  business,
         properties  and personnel as SSCC may  reasonably  request.  Subject to
         Section 4.7(2) and Section 4.7(3) and applicable  Laws, as part of such
         investigation,  SSCC and SSCC's  Representatives  may make inquiries of
         customers  of St.  Laurent  and its  Material  Subsidiaries;  PROVIDED,
         HOWEVER,  SSCC and SSCC's  Representatives  shall not  contact any such
         customers  without  the prior  written  consent  of St.  Laurent  which
         consent  may be  withheld  by St.  Laurent  in its  sole  and  absolute
         discretion and St. Laurent shall have the opportunity to participate in
         any such  inquiries.  Subject to Section  4.7(2) and Section 4.7(3) and
         applicable  laws,  upon  reasonable  notice,   SSCC  shall  afford  St.
         Laurent's  Representatives  access,  upon reasonable  notice and during
         normal business hours from the date hereof and until the earlier of the
         Effective Date or the termination of this Agreement,  to such of SSCC's
         management  personnel as SSCC may determine,  acting  reasonably,  and,
         during such  period,  SSCC shall  furnish  promptly to St.  Laurent all
         information respecting material changes in SSCC's business,  properties
         and personnel as St.  Laurent may reasonably  request.  Nothing in this
         Section  4.7(1) shall require St.  Laurent or SSCC, as the case may be,
         to disclose information subject to a written confidentiality  agreement
         with third  parties or  customer-specific  or  competitively  sensitive
         information  relating to areas or projects  where the other party is in
         direct competition with it.

(2)      In accordance with the Confidentiality Agreements, each of SSCC and St.
         Laurent  acknowledges  that  certain  information  provided to it under
         Section  4.7(1) above will be non-public  and/or  proprietary in nature
         (the  "INFORMATION").  Except as permitted below,  each of SSCC and St.
         Laurent will keep  Information  confidential  and will not, without the
         prior  written  consent  of the  other,  disclose  it,  in  any  manner
         whatsoever,  in whole or in part, to any other Person, and will not use
         it for any purpose other than to evaluate the transactions contemplated
         by this Agreement and to assist in arranging the financing necessary to
         consummate  such  transactions.  Each of SSCC and St. Laurent will make
         all  reasonable,  necessary  and  appropriate  efforts to safeguard the
         Information  from  disclosure to anyone other than as permitted  hereby
         and to  control  the  copies,  extracts  or  reproductions  made of the
         Information.  The Information may be provided to the Representatives of
         each of SSCC and St.  Laurent who require  access to the same to assist
         it in proceeding in good faith with the  transactions  contemplated  by
         this  Agreement  and whose  assistance  is required for such  purposes,
         provided  that  it has  first  informed  such  Representatives  to whom
         Information   is  provided  that  the   Representative   has  the  same
         obligations,  including  as  to  confidentiality,  restricted  use  and
         otherwise, that it has with respect to such Information. This provision
         shall not apply to such portions of the  Information  that:  (i) are or
         become generally  available to the public otherwise than as a result of
         disclosure by a party or its Representatives;  or (ii) become available
         to a party  on a  non-confidential  basis  from a  source  other  than,
         directly  or  indirectly,  the  other  party  or  its  Representatives,
         provided  that such source is not to the  knowledge of the first party,
         upon reasonable  inquiry,  prohibited from transmitting the Information
         by a contractual,  legal or fiduciary obligation; (iii) were known to a
         party or were in its  possession on a  non-confidential  basis prior to
         being  disclosed  to it by the other party or by someone on its behalf;
         or (iv) are required by applicable Laws or court order to be disclosed.
         The provisions of this Section 4.7(2) shall survive the  termination of
         this Agreement.

(3)      The parties  acknowledge that certain  Information may be competitively
         sensitive and that disclosure thereof shall be limited to that which is
         reasonably  necessary for the purpose of (i) preparing  submissions  or
         applications in order to obtain the Appropriate  Regulatory  Approvals,
         (ii) preparing the Circular, (iii) avoiding conflicts, (iv) integrating
         the operations of SSCC and St. Laurent, and (v) arranging the financing
         necessary  to  consummate  the   transactions   contemplated   in  this
         Agreement.

(4)      Notwithstanding any other provision,  no investigation pursuant to this
         Section  4.7 shall  affect or be deemed to affect or modify  any of the
         representations  and warranties  made by St. Laurent in this Agreement,
         and  no  such  investigation  shall  entitle  SSCC  to  terminate  this
         Agreement.

SECTION 4.8       CLOSING MATTERS.

         Each of the SSCC Parties and St. Laurent shall deliver,  at the closing
of  the  transactions   contemplated   hereby,   such  customary   certificates,
resolutions and other closing  documents as may be required by the other parties
hereto, acting reasonably.

SECTION 4.9       INDEMNIFICATION.

(1)      SSCC agrees  that,  from and after the  Effective  Time,  all rights to
         indemnification  or exculpation now existing in favour of the directors
         or  officers  of St.  Laurent  or any  subsidiary  as  provided  in its
         articles of incorporation or by-laws in effect on the date hereof shall
         survive the Arrangement and shall continue in full force and effect for
         a period of not less than six years from the Effective Time.

(2)      There shall be maintained  in effect,  for not less than six years from
         the  Effective  Time,  coverage  equivalent to that in effect under the
         current  policies of the directors' and officers'  liability  insurance
         maintained by St. Laurent or any of its  subsidiaries,  as the case may
         be, which, in the aggregate, are no less advantageous, and with no gaps
         or lapses in coverages with respect to matters  occurring  prior to the
         Effective  Time;  provided,  neither  SSCC nor any of its  subsidiaries
         shall be  required  to pay an annual  premium  in excess of 200% of the
         last annual premium paid by St. Laurent prior to the date hereof and if
         SSCC is not able to obtain the insurance  required by this Section 4.9,
         it shall obtain as much comparable  insurance as possible for an annual
         premium equal to such maximum amount.

SECTION 4.10      RIGHTS PLAN.

         St.  Laurent  shall not redeem the rights  issued under the St. Laurent
Rights Plan or terminate  the St.  Laurent Rights Plan until  immediately  prior
to the Effective Time unless required to do so by a court of competent
jurisdiction or any Regulatory Authority.

SECTION 4.11      BENEFITS CONTINUATION, ETC.

(1)      COMPARABLE BENEFITS.  In addition to SSCC's obligations pursuant to the
         next sentence, for not less than one year following the Effective Date,
         SSCC shall maintain, or shall cause St. Laurent and its subsidiaries to
         maintain,  compensation  and employee  benefit plans,  welfare  benefit
         plans,  pension plans and arrangements for employees of St. Laurent and
         its subsidiaries  ("AFFECTED EMPLOYEES") that are, in the aggregate, no
         less  favorable  than as  provided  under the St.  Laurent  Plans as in
         effect on the date  hereof.  Without  limiting  the  generality  of the
         foregoing,  for not less than one year  following the  Effective  Date,
         SSCC  shall  provide,  or cause St.  Laurent  and its  subsidiaries  to
         provide,  severance pay and other  severance  benefits to each Affected
         Employee as of the Effective Date that are no less favorable than under
         the St.  Laurent  Plans as in effect as of the date of this  Agreement.
         Nothing  in this  Agreement  shall  be  construed  as  granting  to any
         employee any rights of continuing employment.

(2)      HONORING ST. LAURENT EMPLOYEE PLANS AND ACCRUED  VACATION.  SSCC shall,
         or shall  cause  St.  Laurent  or its  subsidiaries  to,  honor all St.
         Laurent Plans and other contractual  commitments in effect  immediately
         prior to the Effective Date between St. Laurent or its subsidiaries and
         Affected   Employees  or  former   employees  of  St.  Laurent  or  its
         subsidiaries.  Without  limiting the generality or the foregoing,  SSCC
         shall honor all vacation,  holiday,  sickness and personal days accrued
         by Affected Employees and, to the extent  applicable,  former employees
         of St.  Laurent and its  subsidiaries  ("FORMER  EMPLOYEES")  as of the
         Effective Date.

(3)      PARTICIPATION   IN  BENEFIT   PLANS.   Employees  and,  to  the  extent
         applicable, Former Employees shall be given credit for all service with
         St. Laurent and its subsidiaries (or service credited by St. Laurent or
         such  subsidiaries)  under all employee benefit plans,  welfare benefit
         plans,  pension plans and other  arrangements  currently  maintained by
         SSCC  or  any  of  its   subsidiaries  in  which  they  are  or  become
         participants for purposes of eligibility and vesting to the same extent
         as if rendered to SSCC or any of its subsidiaries.  SSCC shall cause to
         be waived any  pre-existing  condition  limitation  under its  employee
         benefit  plans,   welfare  benefit  plans,   pension  plans  and  other
         arrangements  that might otherwise apply to an Affected Employee or, to
         the extent applicable, a Former Employee.

                                   ARTICLE 5
                                   CONDITIONS

SECTION 5.1       MUTUAL CONDITIONS PRECEDENT.

(1)      The  respective  obligations  of the  parties  hereto to  complete  the
transactions  contemplated  by this  Agreement  shall be subject to the
satisfaction,  on or  before  the  Effective  Date,  of  the  following
conditions  precedent,  each of which may only be waived by the  mutual consent
of SSCC, on behalf of the SSCC Parties, and St. Laurent:

         (a)   the  Arrangement  shall  have been  approved  at the St.  Laurent
               Meeting by not less than  two-thirds or such other  percentage as
               set forth in the  Interim  Order of the votes cast by the holders
               of St.  Laurent  Common  Shares  who are  represented  at the St.
               Laurent Meeting;

         (b)   the  Arrangement  shall  have been  approved  at the St.  Laurent
               Meeting in  accordance  with any  conditions in addition to those
               set out in Section  5.1(1)(a) which may be imposed by the Interim
               Order;

         (c)   the  Interim  Order  and the  Final  Order  shall  each have been
               obtained in form and terms  satisfactory  to each of St.  Laurent
               and SSCC, acting reasonably, and shall not have been set aside or
               modified in a manner  unacceptable  to such  parties on appeal or
               otherwise;

         (d)   there  shall not be in force any order or decree  restraining  or
               enjoining the  consummation of the  transactions  contemplated by
               this  Agreement and there shall be no  proceeding  (other than an
               appeal made in connection with the Arrangement), of a judicial or
               administrative  nature or  otherwise,  brought by a  Governmental
               Entity in progress or threatened  that relates to or results from
               the  transactions  contemplated  by this Agreement that would, if
               successful,  result in an order or  ruling  that  would  preclude
               completion of the transactions  contemplated by this Agreement in
               accordance   with  the  terms   hereof  or  would   otherwise  be
               inconsistent with the Appropriate Regulatory Approvals which have
               been obtained;

         (e)   this Agreement shall not have been terminated pursuant to Article
               6;

         (f)   the  Appropriate  Regulatory  Approvals,  and the  expiry  of any
               waiting periods,  in connection with, or required to permit,  the
               consummation of the  Arrangement,  the failure of which to obtain
               or the  non-expiry  of which  would  constitute  a  violation  of
               applicable  Law, or would have a Material  Adverse Effect on SSCC
               or St.  Laurent,  as the case may be, shall have been obtained or
               received on terms that will not have a Material Adverse Effect on
               SSCC  and/or St.  Laurent;  there  shall not be pending any suit,
               action or  proceeding  by any  Governmental  Entity nor shall the
               parties have been advised by the applicable  Governmental  Entity
               that the Government  Entity has determined to file a suit, action
               or proceeding (i) seeking to prohibit or restrict the acquisition
               by SSCC or 3038727 of any St. Laurent  Common Shares,  seeking to
               restrain or prohibit the  consummation of the Plan of Arrangement
               or seeking to obtain from St.  Laurent or SSCC any  damages  that
               are  material  in relation  to St.  Laurent and its  subsidiaries
               taken as a whole,  (ii) seeking to prohibit or  materially  limit
               the ownership or operation by SSCC or any of its  subsidiaries of
               any material  portion of the business or assets of St. Laurent or
               any  of  its  subsidiaries  or to  compel  SSCC  or  any  of  its
               subsidiaries to dispose of or hold separate any material  portion
               of the business or assets of St. Laurent and of its subsidiaries,
               taken as a whole, as a result of the Plan of  Arrangement,  (iii)
               seeking to impose  limitations  on the  ability of SSCC or any of
               its  subsidiaries  to acquire or hold, or exercise full rights of
               ownership of, any St. Laurent Common Shares,  including the right
               to vote the St.  Laurent  Common  Shares  purchased  by it on all
               matters  properly  presented to the  shareholders of St. Laurent,
               (iv)  seeking  to  prohibit  SSCC  or  3038727  from  effectively
               controlling in any material respect the business or operations of
               St.  Laurent  and its  subsidiaries  or (v)  which  otherwise  is
               reasonably  likely  to  have a  Material  Adverse  Effect  on St.
               Laurent or SSCC.

SECTION 5.2   ADDITIONAL CONDITIONS PRECEDENT TO THE OBLIGATIONS OF THE SSCC
              PARTIES.

(1)      The  obligations  of the SSCC  Parties  to  complete  the  transactions
         contemplated  by this Agreement shall also be subject to the fulfilment
         of each of the following conditions precedent (each of which is for the
         SSCC Parties'  exclusive benefit and may be waived by SSCC on behalf of
         the SSCC Parties):

         (a)   all covenants of St. Laurent under this Agreement to be performed
               on or before the Effective Date shall have been duly performed by
               St. Laurent in all material respects;

         (b)   the  representations  and warranties of St. Laurent shall be true
               and correct in all material  respects as of the Effective Date as
               if  made  on and as of  such  date  (except  to the  extent  such
               representations  and  warranties  speak as of an earlier date, in
               which event such representations and warranties shall be true and
               correct in all  material  respects as of such  earlier  date,  or
               except as affected by  transactions  contemplated or permitted by
               this  Agreement)  and the SSCC  Parties  shall  have  received  a
               certificate  of St.  Laurent  addressed  to the SSCC  Parties and
               dated the Effective Date,  signed on behalf of St. Laurent by the
               Chief  Executive  Officer  and  Chief  Financial  Officer  of St.
               Laurent, confirming the same as at the Effective Date;

         (c)   between the date hereof and the Effective  Date,  there shall not
               have occurred a Material Adverse Change to St. Laurent;

         (d)   the Board of  Directors  of St.  Laurent  shall have  adopted all
               necessary  resolutions,  and all other necessary corporate action
               shall  have been taken by St.  Laurent  and the  subsidiaries  to
               permit the consummation of the Arrangement.

(2)      The SSCC  Parties  may not rely on the  failure to  satisfy  any of the
         above conditions  precedent as a basis for  non-compliance  by the SSCC
         Parties with their  obligations  under this  Agreement if the condition
         precedent  would have been satisfied but for a material  default by the
         SSCC Parties in complying with their obligations hereunder.

SECTION 5.3       ADDITIONAL CONDITIONS PRECEDENT TO THE OBLIGATIONS OF ST.
                  LAURENT.

(1)      The  obligations of St. Laurent to complete the  transactions
         contemplated  by this Agreement shall also be subject
         to the following  conditions  precedent (each of which is for the
         exclusive benefit of St. Laurent and may be waived
         by St. Laurent):

         (a)      all covenants of the SSCC Parties  under this  Agreement to be
                  performed on or before the Effective Date shall have been duly
                  performed by the SSCC Parties in all material respects;

         (b)      the  representations  and warranties of the SSCC Parties shall
                  be  true  and  correct  in  all  material  respects  as of the
                  Effective  Date as if made on and as of such date  (except  to
                  the extent such  representations and warranties speak as of an
                  earlier  date,  in  which  event  such   representations   and
                  warranties shall be true and correct in all material  respects
                  as of such earlier date) and St. Laurent shall have received a
                  certificate  of  each of the  SSCC  Parties  addressed  to St.
                  Laurent and dated the Effective Date, signed on behalf of each
                  of the SSCC  Parties by two senior  executive  officers of the
                  relevant SSCC Party,  confirming  the same as at the Effective
                  Date;

         (c)      between the  date  hereof and the  Effective Date, there shall
                  not have occurred a Material Adverse Change to SSCC;

         (d)      the Boards of Directors of the SSCC Parties shall have adopted
                  all necessary  resolutions,  and all other necessary corporate
                  action shall have been taken by the SSCC Parties to permit the
                  consummation  of the  Arrangement and the issue of SSCC Common
                  Shares  pursuant to the Arrangement and upon the exercise from
                  time to time of the Replacement Options;

         (e)      the SSCC Common Shares issuable  pursuant to the  Arrangement,
                  upon exercise of the  Replacement  Options and the St. Laurent
                  Warrants  from  time to time  shall  have  been  approved  for
                  listing  on The  Nasdaq  Stock  Market,  subject  to notice of
                  issuance; and

         (f)      the issuance and first resale of the SSCC Common  Shares to be
                  issued to the holders of St.  Laurent  Common Shares as of the
                  Effective Time shall be permitted without  qualification  with
                  or approval of or the filing of any document under  Securities
                  Legislation,  except  with  respect  to  Affiliates  who shall
                  receive   SSCC  Common   Shares   subject  to  the  terms  and
                  restrictions  of the  Affiliate's  Letter  and except for such
                  first  resales,  any  restrictions  or transfer by reason of a
                  holder  being a  "control  person"  of any  SSCC  Party or St.
                  Laurent  for  purposes of  Canadian,  federal,  provincial  or
                  territorial Securities Legislation.

(2)      St.  Laurent  may not rely on the  failure to satisfy  any of the above
         conditions  precedent as a basis for  noncompliance by St. Laurent with
         its obligations  under this Agreement if the condition  precedent would
         have been  satisfied  but for a  material  default  by St.  Laurent  in
         complying with its obligations hereunder.

SECTION 5.4       NOTICE AND CURE PROVISIONS.

(1)      The SSCC Parties and St.  Laurent will give prompt  notice to the other
         of the  occurrence,  or  failure  to  occur,  at any time from the date
         hereof until the  Effective  Date, of any event or state of facts which
         occurrence or failure would, or would be likely to:

         (a)     cause  any of the  representations or  warranties of  the other
                 party  contained  herein to  be  untrue  or  inaccurate in  any
                 material respect on the date hereof or on the Effective Date;
                 or

        (b)      result in the failure in any material respect to comply with or
                 satisfy any  covenant, condition  or  agreement to be  complied
                 with  or  satisfied   by  the  other  hereunder  prior  to  the
                 Effective Date.

(2)      Neither the SSCC Parties nor St.  Laurent may elect not to complete the
         transactions  contemplated hereby pursuant to the conditions  precedent
         contained  in Section 5.1,  Section  5.2,  Section 5.3, or exercise any
         termination right arising therefrom,  unless forthwith and in any event
         prior to the filing of the Final Order for  acceptance by the Director,
         the SSCC Parties or St.  Laurent,  as the case may be, have delivered a
         written  notice  to the  other  specifying  in  reasonable  detail  all
         breaches of covenants,  representations and warranties or other matters
         which  the  SSCC  Parties  or St.  Laurent,  as the  case  may be,  are
         asserting  as the  basis  for  the  non-fulfilment  of  the  applicable
         condition  precedent or the exercise of the  termination  right, as the
         case may be. If any such notice is  delivered,  provided  that the SSCC
         Parties or St. Laurent,  as the case may be, are proceeding  diligently
         to cure such  matter and if such matter is  susceptible  to being cured
         using commercially reasonable efforts, the other may not terminate this
         Agreement  as a result  thereof  until the later of August 30, 2000 and
         the  expiration  of a period of thirty (30) days from such  notice.  If
         such  notice has been  delivered  prior to the date of the St.  Laurent
         Meeting,  such  meeting  shall be  postponed  until the  expiry of such
         period.  If such notice has been  delivered  prior to the making of the
         application  for the  Final  Order or the  filing  of the  Articles  of
         Arrangement  with the Director,  such application and such filing shall
         be postponed until the expiry of such period. For greater certainty, in
         the event that such matter is cured within the time period  referred to
         herein, this Agreement may not be terminated.

SECTION 5.5       SATISFACTION OF CONDITIONS.

         The  conditions  precedent  set out in  Section  5.1,  Section  5.2 and
Section  5.3 shall be  conclusively  deemed to have  been  satisfied,  waived or
released  when,  with the agreement of SSCC and St.  Laurent,  a certificate  of
arrangement in respect of the Arrangement is issued by the Director.

         The parties  hereto agree that no condition to the  obligation  of SSCC
Parties to complete the transactions contemplated by this Agreement set forth in
Section 5.2(1)(a), Section 5.2(1)(b) or Section 5.2(1)(c) shall be deemed not to
have been satisfied as a result of any occurrence of  circumstances  directly or
indirectly  related  to the  effect  of the  existence  or  performance  of this
Agreement or the transactions  contemplated hereby on any existing agreements of
St. Laurent or its affiliates relating to the St. Laurent Partially-Owned Entity
or its affiliates or St.  Laurent's  relations with such persons  referred to in
the St. Laurent Disclosure Letter.

                                   ARTICLE 6
                            AMENDMENT AND TERMINATION

SECTION 6.1       AMENDMENT.

         This  Agreement  may, at any time and from time to time before or after
the holding of the St. Laurent Meeting but not later than the Effective Date, be
amended by mutual  written  agreement of the parties hereto  provided,  however,
that any such  amendment  does  not  invalidate  any  required  security  holder
approval of the Arrangement.

SECTION 6.2       MUTUAL UNDERSTANDING REGARDING AMENDMENTS.

(1)      The parties will  continue,  from and after the date hereof and through
         and including the Effective  Date, to use their  respective  reasonable
         efforts to  maximize  present  and future  financial  and tax  planning
         opportunities  for SSCC and for St.  Laurent as and to the extent  that
         the same shall not prejudice any party or its security holders from the
         situation arising hereunder. The parties will ensure that such planning
         activities  do  not  impede  the  progress  of the  Arrangement  in any
         material way.

(2)      The parties agree that if the SSCC Parties or St. Laurent,  as the case
         may be, propose any amendment or amendments to this Agreement or to the
         Plan of Arrangement,  the other will act reasonably in considering such
         amendment and if the other and its  shareholders  are not prejudiced by
         reason of any such amendment the other will  co-operate in a reasonable
         fashion  with the SSCC Parties or St.  Laurent,  as the case may be, so
         that such amendment can be effected  subject to applicable Laws and the
         rights of the security holders.

SECTION 6.3       TERMINATION.

(1)      If  any  condition  contained  in  Section  5.1 or  Section  5.2 is not
         satisfied at or before the Effective  Date to the  satisfaction  of the
         SSCC Parties,  then, subject to Section 5.4, SSCC on behalf of the SSCC
         Parties may by notice to St.  Laurent  terminate this Agreement and the
         obligations  of  the  parties  hereunder  except  as  otherwise  herein
         provided,  but without  detracting  from the rights of the SSCC Parties
         arising from any breach by St. Laurent.

(2)      If  any  condition  contained  in  Section  5.1 or  Section  5.3 is not
         satisfied at or before the Effective  Date to the  satisfaction  of St.
         Laurent,  then,  subject to Section 5.4,  St.  Laurent may by notice to
         SSCC on behalf of the SSCC Parties  terminate  this  Agreement  and the
         obligations  of  the  parties  hereunder  except  as  otherwise  herein
         provided, but without detracting from the rights of St. Laurent arising
         from any breach by the SSCC Parties.

(3)      This Agreement may:

         (a)   be terminated by the mutual agreement of St. Laurent and the SSCC
               Parties (without  further action on  the part of the  St. Laurent
               Securityholders  if  terminated  after  the  holding  of  the St.
               Laurent Meeting);

         (b)   be terminated  by  either St. Laurent  or SSCC, if there shall be
               passed any law or  regulation applicable to SSCC  or St. Laurent,
               as the case may be, that makes consummation  of  the transactions
               contemplated by this Agreement illegal or otherwise prohibited or
               if any injunction, order or decree enjoining  SSCC or St. Laurent
               from    consummating   the  transactions  contemplated   by  this
               Agreement is entered and such  injunction, order or  decree shall
               become final and non-appealable;

         (c)   be  terminated  by SSCC  if (A) the  Board  of  Directors  of St.
               Laurent  shall have failed to  recommend or withdrawn or modified
               or  changed  in  a  manner   adverse  to  SSCC  its  approval  or
               recommendation of this Agreement or the Arrangement or shall have
               recommended  an  Acquisition  Proposal,  or (B) St. Laurent shall
               have materially and willfully breached the covenants contained in
               Section  4.5(1)(a)  or if St.  Laurent  has  accepted  a Superior
               Proposal in  violation of Section 4.6 or (C) through the fault of
               St. Laurent (whether by commission or omission), this Arrangement
               is not,  prior to 14 days prior to the Drop Dead Date,  submitted
               for the approval of the St.  Laurent  Securityholders  at the St.
               Laurent Meeting;

         (d)   be terminated by St.  Laurent in order to enter into a definitive
               written agreement with respect to a Superior  Proposal,  provided
               St.  Laurent has complied with Section 4.6 and the payment of any
               fee required to be paid pursuant to Section 6.4;

         (e)   be   terminated   by  St.   Laurent   or  SSCC  if  St.   Laurent
               Securityholder approval shall not have been obtained by reason of
               the  failure  to  obtain  the  required  vote at the St.  Laurent
               Meeting; or

         (f)   be terminated  by St.  Laurent if Jefferson  Smurfit  Corporation
               (U.S.) or Stone Container  Corporation shall not have obtained on
               or before  March 25,  2000 the  consents  from  their  respective
               banking  syndicates   required  to  consummate  the  transactions
               contemplated by the Arrangement;

         in each case,  prior to the  Effective  Date (except in the case of (f)
above only after March 25, 2000).

(4)      If the Effective Date does not occur on or prior to the Drop Dead Date,
         then this Agreement shall terminate.

(5)      If this  Agreement is validly  terminated by either SSCC or St. Laurent
         pursuant to Section 6.3, this Agreement shall forthwith become null and
         void and there will be no liability or obligation on the part of either
         SSCC or St. Laurent (or any of their  respective  directors,  officers,
         representatives  or affiliates),  except (i) that Section 6.4,  Section
         7.7 and  this  Section  6.3(5)  shall  continue  to  survive  any  such
         termination  and (ii) that nothing  contained  herein shall relieve any
         party hereto from liability for willful breach of its  representations,
         warranties, covenants or agreements contained in this Agreement.

SECTION 6.4       BREAK FEE.

         If:

         (a)   St. Laurent  shall  terminate  this Agreement pursuant to Section
               6.3(3)(d);

         (b)   SSCC   shall  terminate  this   Agreement  pursuant  to   Section
               6.3(3)(c)(A) or Section 6.3(3)(c)(C); or

         (c)   either  St.  Laurent  or  SSCC  shall  terminate  this  Agreement
               pursuant to Section 6.3(3)(e) in circumstances  where St. Laurent
               Securityholder  approval has not been obtained at the St. Laurent
               Meeting,  and (x) a BONA FIDE Acquisition  Proposal has been made
               by any person  other than a SSCC Party  prior to the St.  Laurent
               Meeting  and not  withdrawn  more than five (5) days prior to the
               vote  of the St.  Laurent  Securityholders  and  (y) St.  Laurent
               enters  into  an   acquisition   agreement  with  respect  to  an
               Acquisition  Proposal, or an Acquisition Proposal is consummated,
               after the date  hereof and prior to the  expiration  of 12 months
               following  termination of this  Agreement,  unless at the time of
               the St.  Laurent  Meeting a Specified SSCC Event has occurred and
               is continuing;

         then in any such case St.  Laurent  shall pay to SSCC US$30  million in
         immediately  available  funds to an account  designated  by SSCC.  Such
         payment  shall be due (i) in the  case of a  termination  specified  in
         clause (a),  prior to the  termination of this  Agreement,  (ii) in the
         case of a  termination  specified in clause (b),  within five  Business
         Days after written  notice of  termination by SSCC or (iii) in the case
         of a termination specified in clause (c), at or prior to the earlier of
         the entering into of the acquisition  agreement and the consummation of
         the transaction referred to therein. St. Laurent shall not be obligated
         to make more than one payment pursuant to this Section 6.4.

SECTION 6.5       EFFECT OF BREAK FEE PAYMENT.

         For greater  certainty,  the parties  hereto agree that if St.  Laurent
pays to SSCC amounts  required by Section 6.4 as a result of the  occurrence  of
any of the events  referenced  in Section 6.4,  the SSCC  Parties  shall have no
other remedy for any breach of this Agreement by St. Laurent.

SECTION 6.6       REMEDIES.

         Subject to Section 6.5, the parties hereto  acknowledge  and agree that
an award of money damages would be inadequate  for any breach of this  Agreement
by any  party  or its  representatives  and any  such  breach  would  cause  the
non-breaching  party  irreparable  harm.  Accordingly,  the parties hereto agree
that, in the event of any breach or threatened  breach of this  Agreement by one
of the  parties,  the  non-breaching  party will also be  entitled,  without the
requirement  of  posting a bond or other  security,  to  injunctive  relief  and
specific  performance.  Such remedies will not be the exclusive remedies for any
breach of this Agreement but will be in addition to all other remedies available
at law or equity to each of the parties.

                                   ARTICLE 7
                                    GENERAL

SECTION 7.1       NOTICES.

(1)      All notices and other  communications  which may or are  required to be
         given  pursuant to any  provision of this  Agreement  shall be given or
         made in  writing  and  shall be deemed  to be  validly  given if served
         personally  or by telecopy,  in each case  addressed to the  particular
         party at:

         (a)      If to St. Laurent, at:

                           St. Laurent Paperboard Inc.
                           620 Rene-Levesque Blvd. West
                           Suite 3000
                           Montreal, Quebec
                           H3B 5C7

                           Attention:            Marion Allaire
                           Telecopier No.:       (514) 861-9408

                  with a copy to:

                           Goodman Phillips & Vineberg
                           1501 McGill College Avenue
                           26th Floor
                           Montreal, Quebec
                           H3A 3N9

                           Attention:            Sylvain Cossette
                           Telecopier No.:       (514) 841-6449

                  and to:

                           Weil, Gotshal & Manges LLP
                           767 Fifth Avenue
                           New York, New York
                           10153

                           Attention:            Ellen J. Odoner
                           Telecopier No.:       (212) 310-8007



         (b)      If to a SSCC Party, at:

                           Smurfit-Stone Container Corporation
                           150 North Michigan Avenue
                           Chicago, Illinois
                           60601

                           Attention:            Craig A. Hunt
                           Telecopier No.:       (312) 580-4625

                  with a copy to:

                           Stikeman Elliott
                           1155 Rene-Levesque Blvd W.
                           Montreal, Quebec
                           H3B 3V2

                           Attention:   Pierre Raymond and Christine Desaulniers
                           Telecopier No.:       (514) 397-3222

                  and to:

                           Winston & Strawn
                           35 West Wacker Drive
                           Chicago, Illinois
                           60601

                           Attention:            Joseph A. Walsh Jr.
                           Telecopier No.:       (312) 558-5700



                  or at such other  address of which any party may, from time to
                  time,  advise the other  parties by notice in writing given in
                  accordance with the foregoing. The date of receipt of any such
                  notice  shall  be  deemed  to  be  the  date  of  delivery  or
                  telecopying thereof.

SECTION 7.2       ASSIGNMENT.

         No party  hereto  may  assign  its  rights or  obligations  under  this
Agreement  or the  Arrangement  except that the SSCC  Parties  (other than SSCC)
shall be permitted to assign their rights and  obligations  under this Agreement
to  a  direct  or  indirect  wholly-owned  subsidiary  of  SSCC,  provided  such
assignment shall not release any such SSCC Party from liability hereunder.

SECTION 7.3       BINDING EFFECT.

     This Agreement and the Arrangement shall be binding upon and shall enure to
the benefit of the parties hereto and their  respective  successors and no third
party shall have any rights hereunder.

SECTION 7.4       WAIVER AND MODIFICATION.

     St.  Laurent and the SSCC Parties may waive or consent to the  modification
of, in whole or in part, any inaccuracy of any  representation  or warranty made
to them  hereunder or in any document to be  delivered  pursuant  hereto and may
waive or consent to the  modification of any of the covenants  herein  contained
for their  respective  benefit or waive or consent to the modification of any of
the  obligations  of the other  parties  hereto.  Any  waiver or  consent to the
modification of any of the provisions of this Agreement,  to be effective,  must
be in writing executed by the party granting such waiver or consent.  No failure
or delay by any party in  exercising  any right,  power or  privilege  hereunder
shall  operate as a waiver  thereof  nor shall any  single or  partial  exercise
thereof  preclude any other or further  exercise  thereof or the exercise of any
other right, power or privilege.

SECTION 7.5       NO PERSONAL LIABILITY.

(1)      No  director  or  officer of any SSCC  Party  shall  have any  personal
         liability whatsoever to St. Laurent under this Agreement,  or any other
         document  delivered in connection  with the  Arrangement on behalf of a
         SSCC Party.

(2)      No director or officer of St.  Laurent  shall have any personal
         liability  whatsoever  to any SSCC Party under this Agreement, or any
         other document delivered in connection with the Arrangement on behalf
         of St. Laurent.

SECTION 7.6       FURTHER ASSURANCES.

     Each party hereto shall, from time to time, and at all times hereafter,  at
the request of the other parties hereto, but without further  consideration,  do
all such  further acts and execute and deliver all such  further  documents  and
instruments as shall be reasonably  required in order to fully perform and carry
out the terms and intent hereof.

SECTION 7.7       EXPENSES.

(1)      Subject to  Section  6.4,  the  parties  agree  that all  out-of-pocket
         expenses  of  the  parties   relating  to  the   Arrangement   and  the
         transactions  contemplated  hereby,  including  legal fees,  accounting
         fees,   financial   advisory   fees,   regulatory   filing  fees,   all
         disbursements of advisors and printing and mailing costs, shall be paid
         by the party incurring such expenses.

(2)      St. Laurent  represents  and warrants to the SSCC Parties that,  except
         for any  amounts  owing  to  Bunting  Warburg  Dillon  Read  Inc..  and
         Donaldson,  Lufkin  &  Jenrette  by  St.  Laurent  pursuant  to  and in
         accordance with the terms of written and executed  agreements  existing
         as at the date  hereof,  copies of which  have  been  given to the SSCC
         Parties on or prior to the date hereof, no broker, finder or investment
         banker is or will be entitled to any  brokerage,  finder's or other fee
         or commission  from St.  Laurent or any  subsidiary  of St.  Laurent in
         connection  with  the  transactions   contemplated  hereby  or  by  the
         Arrangement.

SECTION 7.8       CONSULTATION.

     SSCC and St.  Laurent  agree to consult  with each other as to the  general
nature of any news releases or public  statements with respect to this Agreement
or the Arrangement,  and to use their respective reasonable efforts not to issue
any news  releases or public  statements  inconsistent  with the results of such
consultations.  Subject to applicable  Laws, each party shall use its reasonable
efforts  to enable  the other  parties  to review  and  comment on all such news
releases prior to the release thereof. The parties agree to issue jointly a news
release with respect to this  Arrangement as soon as  practicable  following the
execution  of this  Agreement.  SSCC and St.  Laurent also agree to consult with
each other in preparing and making any filings and  communications in connection
with any Appropriate Regulatory Approvals.

SECTION 7.9       GOVERNING LAWS.

     This  Agreement  shall be governed by and construed in accordance  with the
laws of the  Province  of Quebec and the laws of Canada  applicable  therein and
shall be  treated  in all  respects  as a Quebec  contract.  Each  party  hereby
irrevocably  attorns to the jurisdiction of the courts of the Province of Quebec
in respect of all matters arising under or in relation to this Agreement.

SECTION 7.10      TIME OF ESSENCE.

     Time shall be of the essence in this Agreement.

SECTION 7.11      COUNTERPARTS.

     This Agreement may be executed in one or more  counterparts,  each of which
shall be deemed to be an original but all of which together shall constitute one
and the same instrument.

SECTION 7.12      NO THIRD PARTY BENEFICIARIES

     Except as provided in Section 4.9 and this  Section  7.12,  this  Agreement
(including the documents and instruments  referred to herein) is not intended to
confer  upon any Person  other than the  parties  hereto any rights or  remedies
hereunder.

SECTION 7.13      LANGUAGE.

     The Parties have required that this Agreement and all instruments  relating
thereto be in the English language;



<PAGE>


         IN WITNESS  WHEREOF the parties  hereto have executed this Agreement as
of the date first written above.

                   SMURFIT-STONE CONTAINER CORPORATION

                   By:    /s/ Raymond M. Curran
                          -----------------------------------------------
                          Raymond M. Curran


                   STONE CONTAINER CORPORATION

                   By:    /s/ Raymond M. Curran
                          -----------------------------------------------
                          Raymond M. Curran


                   3038727 NOVA SCOTIA COMPANY

                   By:    /s/ Raymond M. Curran
                          -----------------------------------------------
                          Raymond M. Curran


                   ST. LAURENT PAPERBOARD INC.

                   By:    /s/ Jay J. Gurandiano
                          -----------------------------------------------
                          Jay J. Gurandiano

<PAGE>


                                SCHEDULE A TO THE
                              PRE-MERGER AGREEMENT

                          [Form of Affiliate's Letter]

                                                      __________, 2000

Smurfit-Stone Container Corporation
150 North Michigan Avenue
Chicago, Illinois  60601
Attention:  Secretary

Ladies and Gentlemen:

     Reference is made to the Pre-Merger Agreement dated as of February 23, 2000
(the  "Agreement"),   among  Smurfit-Stone  Container  Corporation,  a  Delaware
corporation  ("SSCC"),  Stone  Container  Corporation,  a  Delaware  corporation
("Stone"),  3038727 Nova Scotia Company, an unlimited liability company existing
under the laws of the Province of Nova Scotia,  and St. Laurent Paperboard Inc.,
a corporation existing under the laws of Canada (the "Company"), providing for a
Plan of Arrangement (the "Arrangement"),  pursuant to which I may receive a cash
payment plus shares of SSCC's common stock, par value $0.01 per share (the "SSCC
Securities"),  in exchange for the common  shares of the Company  owned by me at
the Effective Time of the Plan of Arrangement. Capitalized terms used herein and
not  defined  herein  have  the  respective  meanings  ascribed  to  them in the
Agreement.  This  agreement  is being  delivered  pursuant to Section 4.3 of the
Agreement.

     I have  been  advised  that as of the date  hereof I may be deemed to be an
"affiliate" of the Company,  as that term is defined for purposes of Rule 145 of
the rules and regulations  (the "Rules and  Regulations")  of the Securities and
Exchange  Commission (the "Commission")  promulgated under the Securities Act of
1933,  as amended  (the "Act").  Neither my entering  into this  agreement,  nor
anything  contained  herein,  shall be deemed an  admission on my part that I am
such an "affiliate" for any purpose.

     I represent and warrant to SSCC that in such event:

     A.  I shall not make any sale,  transfer  or other  dispositio  of the SSCC
Securities in violation of the Act or the Rules and Regulations.

     B. I have carefully read this letter and the Agreement and discussed  their
requirements and other applicable  limitations upon my ability to sell, transfer
or otherwise dispose of SSCC Securities, to the extent I felt necessary, with my
counsel or counsel for the Company.

     C. I have been  advised  that,  in  reliance on the  exemption  accorded by
Section  3(a)(10) of the Act, the issuance of SSCC  Securities to me pursuant to
the Plan of Arrangement has not been  registered  with the Commission  under the
Act.  I have  also  been  advised  that  because I may be deemed to have been an
affiliate of the Company prior to the completion of the Plan of Arrangement  and
a distribution by me of SSCC  Securities has not been registered  under the Act,
the SSCC Securities must be held by me indefinitely unless (i) a distribution of
SSCC  Securities  by me has been  registered  under the Act, (ii) a sale of SSCC
Securities by me is made in conformity with the volume and other  limitations of
Rule 145 promulgated by the Commission under the Act, or (iii) in the opinion of
counsel reasonably acceptable to SSCC, some other exemption from registration is
available with respect to a proposed sale, transfer or other disposition of SSCC
Securities by me.

     D. I  understand  that SSCC is under no  obligation  to register  the sale,
transfer or other  disposition  of SSCC  Securities  by me or on my behalf or to
take any other action  necessary in order to make  compliance  with an exemption
from registration under the Act available.

     E. I also  understand  that  stop  transfer  instructions  will be given to
SSCC's  transfer  agents with respect to the SSCC Securities and that there will
be placed on the  certificates  for the SSCC  Securities  delivered  to me,  or,
subject to the last  paragraph of this letter,  any  substitutions  therefor,  a
legend stating in substance:

          "The  shares  represented  by this  certificate  have been issued in a
     transaction to which Rule 145 promulgated  under the Securities Act of 1933
     applies  and may only be sold,  transferred  or  otherwise  disposed  of in
     compliance with the  requirements of Rule 145 or pursuant to a registration
     statement under said act or an exemption from such registration"
<PAGE>
     F. I also  understand  that unless the transfer by me of my SSCC Securities
has been  registered  under  the Act or is a sale  made in  conformity  with the
provisions of Rule 145,  SSCC reserves the right to put the following  legend on
the certificates issued to my transferee:

          "The shares  represented by this  certificate have not been registered
     under  the  Securities  Act of 1933 and  were  acquired  from a person  who
     received such shares in a transaction to which Rule 145  promulgated  under
     the  Securities  Act of 1933 applies.  The shares have been acquired by the
     holder  not  with  a view  to,  or  for  resale  in  connection  with,  any
     distribution  thereof  within the meaning of the Securities Act of 1933 and
     may not be sold, pledged or otherwise transferred except in accordance with
     an exemption from the  registration  requirements  of the Securities Act of
     1933."

     It is understood and agreed that the legends set forth in paragraph E and F
above shall be removed by  delivery  of  substitute  certificates  without  such
legend if the  undersigned  shall have delivered to SSCC a copy of a letter from
the staff of the Commission,  or an opinion of counsel reasonably  acceptable to
SSCC to the effect that such legend is not  required for purposes of the Act. In
such event, SSCC will also rescind the stock transfer  instructions  referred to
above.

                                    Very truly yours,


                                    -------------------------------
                                      Name:

Accepted this ____ day of
__________, 2000, by:

SMURFIT-STONE CONTAINER CORPORATION

By:   _________________________
Name:
Title:


<PAGE>

                                SCHEDULE B TO THE
                              PRE-MERGER AGREEMENT

                        APPROPRIATE REGULATORY APPROVALS

CANADA

- -        expiration or earlier  termination  of the waiting period under Part IX
         of the  COMPETITION  ACT  (Canada)  and  receipt of an  advance  ruling
         certificate ("ARC") pursuant to the COMPETITION ACT (Canada) or, in the
         alternative  to an ARC, a  no-action  letter from the  Commissioner  of
         Competition;

- -        determination by the Minister  responsible for Investment  Canada under
         the  INVESTMENT  CANADA ACT that the  Arrangement is of "net benefit to
         Canada" for purposes of such Act, subject to conditions satisfactory to
         SSCC, acting reasonably; and

- -        exemption  orders from the provincial  securities  regulators  from the
         registration and prospectus  requirements  with respect to the issuance
         and first resale of SSCC Common Shares.

UNITED STATES AND OTHER

- -         expiration  or earlier  termination  of the waiting  period  under the
          HART-SCOTT-RODINO ANTITRUST IMPROVEMENTS ACT OF 1976; and

- -         approval of The Nasdaq Stock Market  regarding the listing of the SSCC
          Common Shares subject to official notice of issuance.


<PAGE>

                               SCHEDULE C TO THE
                              PRE-MERGER AGREEMENT

                             ARRANGEMENT RESOLUTION

              SPECIAL RESOLUTION OF THE ST. LAURENT SECURITYHOLDERS

BE IT RESOLVED THAT:

1.        The arrangement  (the  "Arrangement")  under Section 192 of the Canada
          Business   Corporations   Act  (the  "CBCA")   involving  St.  Laurent
          Paperboard Inc. ("St.  Laurent"),  as more particularly  described and
          set forth in the Management  Information  Circular (the "Circular") of
          St.  Laurent   accompanying   the  notice  of  this  meeting  (as  the
          Arrangement may be modified or amended) is hereby authorized, approved
          and adopted.

2.        The plan of  Arrangement  (the "Plan of  Arrangement")  involving  St.
          Laurent,  the  full  text of  which  is set out as  Schedule  D to the
          Pre-Merger  Agreement made as of February 23, 2000 among Smurfit-Stone
          Container  Corporation,  Stone  Container  Corporation,  3038727  Nova
          Scotia Company and St. Laurent (the "Pre-Merger  Agreement"),  (as the
          Plan  of  Arrangement  may be or may  have  been  amended)  is  hereby
          approved and adopted.

3.        Notwithstanding   that  this  resolution  has  been  passed  (and  the
          Arrangement adopted) by the shareholders,  holders of options, holders
          of restricted  share units and holders of the Series A warrants of St.
          Laurent or that the  Arrangement  has been  approved  by the  Superior
          Court of Quebec,  District of Montreal,  the directors of St.  Laurent
          are  hereby  authorized  and  empowered  (i) to amend  the  Pre-Merger
          Agreement,  or the Plan of Arrangement to the extent  permitted by the
          Pre-Merger  Agreement,  and (ii) not to proceed  with the  Arrangement
          without  further  approval  of the  shareholders,  holders of options,
          holders of restricted share units and holders of the Series A warrants
          of St. Laurent,  but only if the Pre-Merger Agreement is terminated in
          accordance with Article 6 thereof.

4.        Any  officer  or  director  of St.  Laurent is hereby  authorized  and
          directed for and on behalf of St.  Laurent to execute,  under the seal
          of St.  Laurent or otherwise,  and to deliver  articles of arrangement
          and such other documents as are necessary or desirable to the Director
          under the CBCA in accordance with the Pre-Merger Agreement for filing.

5.        Any  officer  or  director  of St.  Laurent is hereby  authorized  and
          directed  for and on behalf of St.  Laurent  to execute or cause to be
          executed,  under the seal of St. Laurent or otherwise,  and to deliver
          or cause to be delivered, all such other documents and instruments and
          to perform or cause to be performed  all such other acts and things as
          in such  person's  opinion may be  necessary or desirable to give full
          effect to the foregoing resolution and the matters authorized thereby,
          such  determination to be conclusively  evidenced by the execution and
          delivery of such document, agreement or instrument or the doing of any
          such act or thing.

<PAGE>

                                SCHEDULE D TO THE
                              PRE-MERGER AGREEMENT

                               PLAN OF ARRANGEMENT
                                UNDER SECTION 192
                     OF THE CANADA BUSINESS CORPORATIONS ACT


                                   ARTICLE 1
                                 INTERPRETATION

SECTION 1.1 DEFINITIONS

      In this Plan of  Arrangement,  unless  there is  something  in the subject
matter or context  inconsistent  therewith,  the following  terms shall have the
respective meanings set out below and grammatical variations of such terms shall
have corresponding meanings:

1.1  "ARRANGEMENT"  means an  arrangement  under  section 192 of the CBCA on the
     terms and subject to the  conditions  set out in this Plan of  Arrangement,
     subject to any  amendments  or variations  thereto made in accordance  with
     Section  6.1 of the  Pre-Merger  Agreement  or  Article  5 or  made  at the
     direction of the Court in the Final Order.

     "ARRANGEMENT  RESOLUTION"  means the special  resolution of the St. Laurent
     Securityholders,  to be substantially in the form and content of Schedule C
     annexed to the Pre-Merger Agreement.

     "ARTICLES OF ARRANGEMENT"  means the articles of arrangement of St. Laurent
     in respect of the  Arrangement  that are required by the CBCA to be sent to
     the Director after the Final Order is made.

     "BUSINESS DAY" means any day on which  commercial  banks are generally open
     for  business in  Chicago,  Illinois  and  Montreal,  Quebec,  other than a
     Saturday,  a Sunday or a day  observed  as a holiday in  Chicago,  Illinois
     under the laws of the State of Illinois  or the federal  laws of the United
     States of America or in Montreal,  Quebec under the laws of the Province of
     Quebec or the federal laws of Canada.

     "CBCA" means the CANADA BUSINESS CORPORATIONS ACT, as amended.

     "CERTIFICATE"  means the  certificate of  arrangement  giving effect to the
     Arrangement,  issued  pursuant to  subsection  192(7) of the CBCA after the
     Articles of Arrangement have been filed.

     "CIRCULAR"  means the notice of the St.  Laurent  Meeting and  accompanying
     management  information  circular,  including all appendices thereto, to be
     sent to holders of St.  Laurent Common Shares,  St.  Laurent  Options,  St.
     Laurent RSUs and St.  Laurent  Warrants in connection  with the St. Laurent
     Meeting, as may be amended from time to time.

     "COURT" means the Superior Court of Quebec, District of Montreal.

     "DEPOSITARY"  means  Montreal  Trust  Company  at its  offices  located  at
     Montreal, Quebec.

     "DIRECTOR" mean the Director appointed pursuant to section 260 of the CBCA.

     "DISSENT RIGHTS" has the meaning ascribed thereto in Section 3.1.

     "DISSENTING  SHAREHOLDER"  means a holder of St.  Laurent Common Shares who
     dissents  in  respect  of the  Arrangement  in strict  compliance  with the
     Dissent Rights.

     "DROP DEAD DATE" means  September  30,  2000,  or such later date as may be
     mutually agreed by the parties to the Pre-Merger Agreement.

     "EFFECTIVE  DATE" means the date shown on the  Certificate,  provided  that
     such date occurs on or prior to the Drop Dead Date.

     "EFFECTIVE TIME" means 12:01 a.m. (Montreal time) on the Effective Date.

     "EXCHANGE CONSIDERATION" has the meaning ascribed thereto in Section 2.3.

     "FINAL ORDER" means the final order of the Court  approving the Arrangement
     as such  order  may be  amended  by the  Court  at any  time  prior  to the
     Effective  Date or, if appealed,  then,  unless such appeal is withdrawn or
     denied, as affirmed.

     "GOVERNMENT  ENTITY"  means  any (a)  multinational,  federal,  provincial,
     state,  regional,  municipal,  local or other  government,  governmental or
     public   department,   central  bank,  court,   tribunal,   arbitral  body,
     commission,   board,  bureau  or  agency,  domestic  or  foreign,  (b)  any
     subdivision,   agent,  commission,  board,  or  authority  of  any  of  the
     foregoing,  or (c) any  quasi-governmental  or private body  exercising any
     regulatory,  expropriation  or taxing authority under or for the account of
     any of the foregoing.

     "HOLDERS" means the holders of St. Laurent Common Shares shown from time to
     time in the register  maintained by or on behalf of St.  Laurent in respect
     of the St. Laurent Common Shares.

     "INTERIM  ORDER" means the interim  order of the Court,  as the same may be
     amended,  in respect of the Arrangement,  as contemplated by Section 2.2 of
     the Pre-Merger Agreement.

     "MEETING DATE" means the date of the St. Laurent Meeting.

     "NASDAQ" means The Nasdaq Stock Market.

     "NSCA" means the COMPANIES ACT (Nova Scotia).

     "PERSON" includes any individual, firm, partnership, joint venture, venture
     capital fund,  limited  liability  company,  unlimited  liability  company,
     association,  trust,  trustee,  executor,  administrator,   legal  personal
     representative, estate, group, body corporate, corporation,  unincorporated
     association  or  organization,  Governmental  Entity,  syndicate  or  other
     entity, whether or not having legal status.

     "PRE-MERGER  AGREEMENT" means the pre-merger  agreement made as of the 23rd
     day of  February,  2000 among  SSCC,  Stone,  3038727 and St.  Laurent,  as
     amended,  supplemented and/or restated in accordance therewith prior to the
     Effective Date, providing for, among other things, the Arrangement.

     "REPLACEMENT OPTION" has the meaning ascribed thereto in Section 2.2(c).

     "REPLACEMENT WARRANT" has the meaning ascribed thereto in Section 2.2(e).

     "SECURITY PORTION" has the meaning ascribed thereto in Section 2.3.

     "SSCC" means Smurfit-Stone  Container  Corporation,  a corporation existing
     under the laws of the State of Delaware.

     "SSCC  CLOSING  PRICE"  means the  closing  price on Nasdaq of SSCC  Common
     Shares on the day immediately preceding the Effective Date.

     "SSCC  COMMON  SHARES"  means the shares of common  stock in the capital of
     SSCC.

     "SSCC OPTION SHARES" has the meaning ascribed thereto Section 2.2(c).

     "ST.  LAURENT" means St. Laurent  Paperboard  Inc., a corporation  existing
     under the laws of Canada.

     "ST.  LAURENT  COMMON SHARES" means the common shares in the capital of St.
     Laurent.

     "ST.  LAURENT  DIRECTORS'  STOCK OPTION AND SHARE PURCHASE PLAN" means that
     certain  Directors  Stock Option and Share  Purchase Plan of St. Laurent in
     effect as of the date hereof.

     "ST.  LAURENT  EMPLOYEE SHARE  PURCHASE PLAN  (CANADA)"  means the employee
     share  purchase  plan  (Canada)  of St.  Laurent  in  effect as of the date
     hereof.

     "ST. LAURENT LONG-TERM  INCENTIVE PLAN" means the long-term  incentive plan
     of St. Laurent in effect as of the date hereof.

     "ST.  LAURENT  MANAGERS'  SHARE  PURCHASE  PLAN" means the managers'  share
     purchase plan of St. Laurent in effect as of the date hereof.

     "ST.  LAURENT  MANAGERS' STOCK OPTION PLAN" mean the managers' stock option
     plan of St. Laurent in effect as of the date hereof.

     "ST.   LAURENT   MEETING"   means  the  special   meeting  of  St.  Laurent
     Securityholders,  including any adjournment  thereof, to be called and held
     in accordance with the Interim Order to consider the Arrangement.

     "ST.  LAURENT  OPTIONS"  means the options to purchase St.  Laurent  Common
     Shares  granted  under the St.  Laurent  Directors'  Stock Option and Share
     Purchase Plan, the St. Laurent Long-Term Incentive Plan and the St. Laurent
     Managers' Stock Option Plan and being outstanding and unexercised.

     "ST. LAURENT  PERFORMANCE  SHARE PLAN" means the performance  share plan of
     St. Laurent in effect as of the date hereof.

     "ST. LAURENT RIGHTS PLAN" means the shareholder  rights plan of St. Laurent
     approved on February 1, 1995, as amended on May 7, 1998 and on February 23,
     2000.

     "ST.  LAURENT RSUS" means the restricted share units granted by St. Laurent
     to certain  officers and  managers  pursuant to the St.  Laurent  Managers'
     Share Purchase Plan and being  outstanding and unexercised on the Effective
     Date.

     "ST.  LAURENT  SECURITYHOLDERS"  means the  holders of St.  Laurent  Common
     Shares,  St. Laurent  Options,  St. Laurent RSUs and St. Laurent  Warrants,
     collectively.

     "ST.  LAURENT SHARE PURCHASE  PLANS" means,  collectively,  the St. Laurent
     Directors'  Stock Option and Purchase Plan, the St. Laurent  Employee Share
     Purchase Plan (Canada),  the St. Laurent subsidiary Employee Stock Purchase
     Plan (U.S.),  the St.  Laurent  Managers'  Share  Purchase Plan and the St.
     Laurent Performance Share Plan.

     "ST.  LAURENT  SUBSIDIARY  EMPLOYEE  STOCK PURCHASE PLAN (U.S.)" means that
     certain  Employee Stock Purchase Plan (U.S.) of a subsidiary of St. Laurent
     in effect as of the date hereof.

     "ST.  LAURENT  WARRANTS" means the 380,000 Series A Warrants of St. Laurent
     issued on January 29, 1999 to purchase 380,000 St. Laurent Common Shares at
     an initial  exercise price of Canadian  $10.95,  outstanding as of the date
     hereof.

     "ST.  LAURENT WARRANT  INDENTURE"  means that certain  Indenture made as of
     January 29, 1999 between St. Laurent and Montreal Trust Company.

     "STONE" means Stone Container Corporation, a corporation existing under the
     laws of the State of Delaware.

     "WEIGHTED  AVERAGE  PRICE OF THE SSCC  COMMON  SHARES"  means the  weighted
     average of the closing  prices of the SSCC Common  Shares on Nasdaq for the
     twenty (20)  Business Day period  ending on the second  (2nd)  Business Day
     prior to the Meeting Date.

     "3038727" means 3038727 Nova Scotia Company, an unlimited liability company
     existing  under  the  laws of the  Province  of  Nova  Scotia  and  being a
     subsidiary of Stone.

SECTION 1.2 SECTIONS AND HEADINGS

      The division of this Plan of  Arrangement  into sections and the insertion
of  headings  are  for  reference   purposes  only  and  shall  not  affect  the
interpretation  of this Plan of Arrangement.  Unless  otherwise  indicated,  any
reference in this Plan of  Arrangement  to a section or an exhibit refers to the
specified section of or exhibit to this Plan of Arrangement.

SECTION 1.3 NUMBER, GENDER AND PERSONS

      In this Plan of Arrangement,  unless the context otherwise requires, words
importing  the  singular  number  include  the  plural  and VICE VERSA and words
importing any gender include all genders.

                                   ARTICLE 2
                                  ARRANGEMENT

SECTION 2.1 BINDING EFFECT

      This Plan of  Arrangement  will become  effective  at, and be binding at
and  after,  the  Effective  Time on (i) St.  Laurent,  (ii)  SSCC,  Stone and
3038727,  (iii) all holders and all  beneficial  holders of St. Laurent Common
Shares, and (iv) all holders of St. Laurent Options,  St. Laurent RSUs and St.
Laurent Warrants.

SECTION 2.2 ARRANGEMENT

      Commencing at the Effective  Time, the following  shall occur and shall be
deemed to occur in the following order without any further act or formality:

     (a)  St.   Laurent  shall   transfer  to  one  or  more  new   wholly-owned
          subsidiaries  governed by the CBCA all of its  operating  assets other
          than  securities  and  all  of  its  operating   liabilities,   for  a
          consideration payable through the issuance of stock to St. Laurent;

     (b)  each St.  Laurent  Common  Share  will be  transferred  by the  holder
          thereof,  without  any act or  formality  on its part,  to  3038727 in
          exchange  for the  Exchange  Consideration,  and the name of each such
          holder will be removed  from the  register  of holders of St.  Laurent
          Common  Shares and added to the  register  of  holders of SSCC  Common
          Shares and 3038727 will be recorded as the  registered  holder of such
          St.  Laurent  Common  Shares so exchanged and will be deemed to be the
          legal and beneficial owner thereof;

     (c)  each  St.   Laurent  Option  shall  be  exchanged  for  an  option  (a
          "REPLACEMENT  OPTION") to purchase  that number of SSCC Common  Shares
          equal to the sum of (i) the Security  Portion  TIMES the number of St.
          Laurent Common Shares subject to the St. Laurent Option; PLUS (ii) the
          quotient of (A) $12.50 TIMES the number of St.  Laurent  Common Shares
          subject to the St.  Laurent  Option,  DIVIDED BY (B) the SSCC  Closing
          Price ("SSCC OPTION SHARES"); the exercise price per SSCC Common Share
          for each Replacement  Option shall be the quotient of (x) an aggregate
          amount equal to the number of St. Laurent Common Shares subject to the
          St. Laurent  Option  exchanged for such  Replacement  Option TIMES the
          original  exercise price per St. Laurent Common Share pursuant to such
          St.  Laurent  Option , at the option of the holder (i) converted  into
          its U.S. dollar equivalent based on the noon spot exchange rate on the
          day  immediately  preceding the Effective Date reported by the Bank of
          Canada for Canadian dollars expressed in US dollars, or (ii) expressed
          in Canadian  dollars, the whole  DIVIDED BY (y) the SSCC Option Shares
          subject to such Replacement Option;

     (d)  each St.  Laurent RSU shall be fully  vested and entitle its holder to
          receive at the Effective Time, with respect of each St. Laurent Common
          Share  subject to such St.  Laurent RSU,  the  Exchange  Consideration
          without any further act or formality;

     (e)  each St.  Laurent  Series A Warrant will be exchanged for a warrant (a
          "REPLACEMENT  WARRANT");  each  Replacement  Warrant  will entitle the
          holder  thereof,   upon  the  exercise  of  each  Replacement  Warrant
          andpayment  of the  Exercise  Price  (as  defined  in the St.  Laurent
          Warrant Indenture),  to receive the Exchange Consideration.  Except as
          set out in the  preceding  sentence,  the term to expiry and all other
          terms and  conditions  of each  Replacement  Warrant will be unchanged
          from those of the  relevant  St.  Laurent  Warrant and any document or
          agreement previously  evidencing a St. Laurent Warrant will thereafter
          evidence and be deemed to evidence such Replacement Warrant; and

     (f)  St.  Laurent will be continued  under the NSCA without any further act
          or  formality in  accordance  with  sections 130 and  following of the
          NSCA.

SECTION 2.3 EXCHANGE CONSIDERATION

      For purposes hereof,  "EXCHANGE CONSIDERATION" means, with respect to each
St.  Laurent Common Share,  US$12.50  payable in cash plus 0.5 SSCC Common Share
(the "SECURITY PORTION").

SECTION 2.4 ADJUSTMENTS TO CONSIDERATION

      The Security  Portion of the  Exchange  Consideration  and the  conversion
formula for the St.  Laurent  Options  shall be  adjusted  to reflect  fully the
effect of any stock split, reverse split, stock dividend (including any dividend
or distribution of securities convertible into SSCC Common Shares or St. Laurent
Common  Shares  other  than  stock  dividends  paid in lieu of  ordinary  course
dividends),  reorganization,  recapitalization or other like change with respect
to SSCC Common Shares or St. Laurent Common Shares  occurring  after the date of
the Pre-Merger Agreement and prior to the Effective Time.

                                   ARTICLE 3
                                RIGHTS OF DISSENT

SECTION 3.1 RIGHTS OF DISSENT

      Holders of St. Laurent  Common Shares may exercise  rights of dissent with
respect to such shares pursuant to and in the manner set forth in section 190 of
the CBCA and this  Section 3.1 (the  "DISSENT  RIGHTS") in  connection  with the
Arrangement;  provided that,  notwithstanding subsection 190(5) of the CBCA, the
written objection to the Arrangement Resolution referred to in subsection 190(5)
of the CBCA must be received by St.  Laurent not later than 5:00 p.m.  (Montreal
time) on the Business Day  preceding  the St.  Laurent  Meeting.  Holders of St.
Laurent Common Shares who duly exercise such rights of dissent and who:

     (a)  are  ultimately  determined  to be  entitled to be paid fair value for
          their St.  Laurent  Common Shares shall be deemed to have  transferred
          such St. Laurent  Common Shares to 3038727 in accordance  with Section
          2.2(b)  hereof,  to the  extent  the fair  value  therefor  is paid by
          3038727; or

     (b)  are ultimately  determined not to be entitled,  for any reason,  to be
          paid fair value for their St. Laurent Common Shares shall be deemed to
          have   participated  in  the  Arrangement  on  the  same  basis  as  a
          non-dissenting  holder of St.  Laurent Common Shares and shall receive
          the Exchange  Consideration on the basis determined in accordance with
          Section 2.2(b),

but in no case shall SSCC, 3038727,  St. Laurent or any other Person be required
to recognize  such  holders as holders of St.  Laurent  Common  Shares after the
Effective Time, and the names of such holders of St. Laurent Common Shares shall
be deleted from the  registers of holders of St.  Laurent  Common  Shares at the
Effective Time.

                                   ARTICLE 4
                   CERTIFICATES, CHEQUES AND FRACTIONAL SHARES

SECTION 4.1 EXCHANGE OF CERTIFICATES FOR SSCC COMMON SHARES AND PAYMENT IN CASH

      At or promptly  after the Effective  Time,  3038727 shall deposit with the
Depositary, for the benefit of the holders of St. Laurent Common Shares who will
receive SSCC Common  Shares in  connection  with the  Arrangement,  certificates
representing that whole number of SSCC Common Shares and the cash portion of the
Exchange Consideration to be delivered pursuant to Section 2.2 upon the exchange
of St. Laurent Common Shares.  Upon surrender to the Depositary for cancellation
of a  certificate  which  immediately  prior to the Effective  Time  represented
outstanding  St.  Laurent  Common  Shares that were  exchanged  for the Exchange
Consideration  under the  Arrangement,  together  with such other  documents and
instruments  as would have been  required  to effect the  transfer of the shares
formerly  represented by such certificate  under the CBCA and the by-laws of St.
Laurent and such  additional  documents and  instruments  as the  Depositary may
reasonably require, the holder of such surrendered certificate shall be entitled
to  receive in  exchange  therefor,  and the  Depositary  shall  deliver to such
holder,  a  certificate  representing  that number  (rounded down to the nearest
whole number) of SSCC Common Shares and a cheque  representing  the cash portion
of the  Exchange  Consideration  which  such  holder  has the  right to  receive
(together with any dividends or  distributions  with respect thereto pursuant to
Section 4.2 and any cash in lieu of fractional  SSCC Common  Shares  pursuant to
Section 4.3), and the  certificate so surrendered  shall forthwith be cancelled.
In the event of a transfer of ownership of St.  Laurent  Common  Shares which is
not  registered  in  the  transfer   records  of  St.  Laurent,   a  certificate
representing  the proper number of SSCC Common Shares and a cheque  representing
the cash portion of the Exchange  Consideration  may be issued to the transferee
if the certificate  representing  such St. Laurent Common Shares is presented to
the  Depositary,  accompanied  by all documents  required to evidence and effect
such  transfer.  Until  surrendered  as  contemplated  by this Section 4.1, each
certificate  which  immediately  prior to the Effective Time  represented one or
more  outstanding  St. Laurent Common Shares that were exchanged for SSCC Common
Shares  and cash  shall be  deemed  at all times  after  the  Effective  Time to
represent  only the right to receive  upon such  surrender  (i) the  certificate
representing SSCC Common Shares as contemplated by this Section 4.1, (ii) a cash
payment  representing  the cash portion of the Exchange  Consideration,  (iii) a
cash payment in lieu of any  fractional  SSCC Common Shares as  contemplated  by
Section 4.3 and (iv) any dividends or distributions with a record date after the
Effective Time theretofore paid or payable with respect to SSCC Common Shares as
contemplated by Section 4.2.

SECTION  4.2  DISTRIBUTIONS  WITH  RESPECT  TO  UNSURRENDERED   CERTIFICATES

     No dividends or other  distributions  declared or made after the  Effective
Time with respect to SSCC Common  Shares with a record date after the  Effective
Time  shall  be  paid  to the  holder  of any  unsurrendered  certificate  which
immediately  prior to the Effective  Time  represented  outstanding  St. Laurent
Common Shares that were  exchanged  pursuant to Section 2.2, and no cash payment
in lieu of  fractional  shares  shall be paid to any  such  holder  pursuant  to
Section 4.3 and no interest shall be earned or payable on these proceeds, unless
and until the holder of such  certificate  shall  surrender such  certificate in
accordance with Section 4.1 and, in such event,  only for the period  commencing
five (5) Business Days following such  surrender.  Subject to applicable law, at
the time of such  surrender of any such  certificate  (or, in the case of clause
(iii) below, at the appropriate payment date), there shall be paid to the holder
of the certificates  representing St. Laurent Common Shares, as the case may be,
without  interest,  (i) the amount of any cash  payable in lieu of a  fractional
SSCC Common Share to which such holder is entitled pursuant to Section 4.3, (ii)
the amount of  dividends  or other  distributions  with a record  date after the
Effective Time theretofore  paid with respect to the SSCC Common Shares,  as the
case may be, to which such holder is entitled  pursuant  hereto and (iii) on the
appropriate  payment date, the amount of dividends or other distributions with a
record date after the  Effective  Time but prior to surrender and a payment date
subsequent to surrender  payable with respect to such SSCC Common Shares, as the
case may be.

SECTION 4.3 NO FRACTIONAL SHARES

      No certificates representing fractional SSCC Common Shares shall be issued
upon the surrender for exchange of certificates pursuant to Section 4.1. In lieu
of  any  such  fractional  securities,  each  Person  otherwise  entitled  to  a
fractional  interest in a SSCC Common Share will receive a cash payment from the
Depositary equal to the product of such fractional interest and the SSCC Trading
Price.  3038727 shall from time to time as necessary provide the Depositary with
funds sufficient to satisfy these  obligations.  On the sixth anniversary of the
Effective  Date,  the  aggregate  number  of SSCC  Common  Shares  for  which no
certificates were issued as a result of the foregoing provisions of this Section
4.3  shall  be  deemed  to  have  been  surrendered  by  the  Depositary  for no
consideration to 3038727 or SSCC, as the case may be and the cash portion of the
Exchange Consideration shall be returned to the Depositary.

SECTION 4.4 LOST CERTIFICATES

      In the event any certificate which immediately prior to the Effective Time
represented  one or  more  outstanding  St.  Laurent  Common  Shares  that  were
exchanged  pursuant  to Section 2.2 shall have been lost,  stolen or  destroyed,
upon the  making  of an  affidavit  of that  fact by the  Person  claiming  such
certificate  to be lost,  stolen or  destroyed,  the  Depositary  will  issue in
exchange for such lost,  stolen or destroyed  certificate,  any cash pursuant to
Section 4.3 and/or one or more certificates representing one or more SSCC Common
Shares (and any dividends or distributions with respect thereto)  deliverable in
accordance with the terms of the  Arrangement.  When authorizing such payment in
exchange  for any lost,  stolen or  destroyed  certificate,  the  Person to whom
certificates  representing SSCC Common Shares and cheques  representing the cash
portion of the Exchange  Consideration  are to be issued  shall,  as a condition
precedent to the issuance thereof, give a bond satisfactory to 3038727, SSCC and
their  respective  transfer  agents in such sum as 3038727 or SSCC may direct or
otherwise  indemnify  3038727 and SSCC in a manner  satisfactory to UCL and SSCC
against any claim that may be made  against  3038727 or SSCC with respect to the
certificate alleged to have been lost, stolen or destroyed.

SECTION 4.5 EXTINCTION OF RIGHTS

      Any certificate  which immediately prior to the Effective Time represented
outstanding  St. Laurent  Common Shares that were exchanged  pursuant to Section
2.2 that is not deposited with all other instruments  required by Section 4.1 on
or prior to the sixth anniversary of the Effective Date shall cease to represent
a claim or interest of any kind or nature as a  shareholder  or creditor for the
cash portion of the Exchange  Consideration  of 3038727,  Stone or SSCC. On such
date, the SSCC Common Shares (or cash in lieu of fractional  interests  therein,
as provided in Section 4.3) and the cash  portion of the Exchange  Consideration
to which the  former  holder of the  certificate  referred  to in the  preceding
sentence was ultimately entitled shall be deemed to have been surrendered for no
consideration  to  3038727  or  SSCC,  as the  case  may be,  together  with all
entitlements  to dividends,  distributions  and interest in respect thereof held
for such former holder.  None of SSCC, 3038727 or the Depositary shall be liable
to any  person in  respect  of any SSCC  Common  Shares or  payment  in cash (or
dividends,  distributions and interest in respect thereof) delivered to a public
official pursuant to any applicable abandoned property, escheat or similar law.

SECTION 4.6 WITHHOLDING RIGHTS

      3038727,  Stone,  SSCC and the Depositary  shall be entitled to deduct and
withhold from any dividend or consideration  otherwise  payable to any holder of
St. Laurent Common Shares or SSCC Common Shares such amounts as 3038727,  Stone,
SSCC or the  Depositary  is required to deduct and withhold with respect to such
payment  under the ITA, the United States  Internal  Revenue Code of 1986 or any
provision  of  provincial,  state,  local or foreign tax law,  in each case,  as
amended. To the extent that amounts are so withheld, such withheld amounts shall
be  treated  for all  purposes  hereof as having  been paid to the holder of the
shares in respect of which such  deduction and  withholding  was made,  provided
that such  withheld  amounts are  actually  remitted to the  appropriate  taxing
authority.  To the extent that the amount so required to be deducted or withheld
from  any  payment  to a  holder  exceeds  the  cash  portion  of  the  Exchange
Consideration  otherwise  payable to the holder,  3038727,  Stone,  SSCC and the
Depositary are hereby authorized to sell or otherwise dispose of such portion of
the  Exchange  Consideration  as is  necessary  to provide  sufficient  funds to
3038727,  Stone,  SSCC or the  Depositary,  as the case may be,  to enable it to
comply with such deduction or withholding  requirement and 3038727,  Stone, SSCC
or the  Depositary  shall  notify the  holder  thereof  and remit any  unapplied
balance of the net proceeds of such sale.

                                   ARTICLE 5
                                   AMENDMENTS

SECTION 5.1 AMENDMENTS TO PLAN OF ARRANGEMENT

     (1)  St. Laurent reserves the right to amend, modify and/or supplement this
          Plan of  Arrangement  at any time and from  time to time  prior to the
          Effective Date, provided that each such amendment, modification and/or
          supplement  must be (i) set out in  writing,  (ii)  approved  by SSCC,
          (iii)  filed with the Court and,  if made  following  the St.  Laurent
          Meeting, approved by the Court and (iv) communicated to holders of St.
          Laurent Common Shares,  St. Laurent Options,  St. Laurent RSUs and St.
          Laurent Warrants if and as required by the Court.

     (2)  Any amendment,  modification or supplement to this Plan of Arrangement
          may be  proposed by St.  Laurent at any time prior to the St.  Laurent
          Meeting  (provided  that SSCC shall have  consented  thereto)  with or
          without any other prior  notice or  communication,  and if so proposed
          and accepted by the Persons voting at the St.  Laurent  Meeting (other
          than as may be required under the Interim Order), shall become part of
          this Plan of Arrangement for all purposes.

     (3)  Any amendment,  modification or supplement to this Plan of Arrangement
          that is approved by the Court  following the St. Laurent Meeting shall
          be effective only if (i) it is consented to by each of St. Laurent and
          SSCC and (ii) if required by the Court,  it is consented to by holders
          of the St.  Laurent Common Shares,  St. Laurent  Options,  St. Laurent
          RSUs or St.  Laurent  Warrants  voting in the manner  directed  by the
          Court.

     (4)  Any amendment,  modification or supplement to this Plan of Arrangement
          may be  made  following  the  Effective  Date  unilaterally  by  SSCC,
          provided that it concerns a matter which, in the reasonable opinion of
          SSCC, is of an administrative nature required to better give effect to
          the  implementation  of this Plan of Arrangement and is not adverse to
          the  financial  or  economic  interests  of any holder of St.  Laurent
          Common Shares,  St. Laurent  Options,  St. Laurent RSUs or St. Laurent
          Warrants.

                                   ARTICLE 6
                               FURTHER ASSURANCES

SECTION 6.1

      Notwithstanding  that the  transactions  and events  set out herein  shall
occur and be  deemed  to occur in the order set out in this Plan of  Arrangement
without  any  further act or  formality,  each of the parties to the  Pre-Merger
Agreement  shall make, do and execute,  or cause to be made,  done and executed,
all such further acts, deeds, agreements, transfers, assurances,  instruments or
documents  as may  reasonably  be  required  by any of them in order  further to
document or evidence any of the transactions or events set out herein.


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