SCHEDULE 14A INFORMATION

                  Proxy Statement Pursuant to Section 14(a) of
                       the Securities Exchange Act of 1934
                                (Amendment No. 1)



Filed by the Registrant  [X]

Filed by a Party other than the Registrant  [  ]

Check the appropriate box:

[X]      Preliminary Proxy Statement
[   ]    Confidential, for Use of the Commission Only (as permitted
         by Rule 14a-6(e)(2))
[   ]    Definitive Proxy Statement
[   ]    Definitive Additional Materials
[   ]    Soliciting Material Pursuant to Section 240.14a-11(c) or
         Section 240.14a-12


                         AMCOL INTERNATIONAL CORPORATION
                (Name of Registrant as Specified In Its Charter)

    (Name of Person(s) Filing Proxy Statement, if other than the Registrant)


Payment of Filing Fee (Check the appropriate box):

[   ]   No fee required.

[   ]   Fee computed on table below per Exchange Act Rules 14a-6(i)(1) and 0-11.

        (1)      Title of each class of securities to which transaction applies:

                  Common Stock, par value $.01 per share

        (2)      Aggregate number of securities to which transactions applies:

                  ______________ (as of April ___, 2000)

        (3) Per unit price or other underlying  value of transaction  computed
          pursuant to Exchange  Act Rule 0-11 (Set forth the amount on which the
          filing fee is calculated  and state how it was  determined):  Value of
          Transaction:  $656.5 million, consisting of (i) $628 million, less the
          amount  of  any  outstanding  intercompany  indebtedness  of  the  SAP
          Business as of the closing, subject to certain additional adjustments,
          as the  purchase  price  under an Asset and Stock  Purchase  Agreement
          dated November 22, 1999, and (ii) $28.5 million,  as consideration for
          entering into an Acrylic Acid Supply Agreement.

        (4)      Proposed maximum aggregate value of transaction:

                  $656.5 million (See line 3 above)

        (5)      Total fee paid:

                  $131,300

[X]      Fee paid previously with preliminary materials.

          [ ] Check box if any part of the fee is offset as provided by Exchange
          Act Rule  0-11(a)(2)  and identify the filing for which the offsetting
          fee was paid previously.  Identify the previous filing by registration
          statement number, or the Form or Schedule and the date of its filing.

         (1)      Amount Previously Paid:

         (2)      Form, Schedule or Registration Statement No.:

         (3)      Filing Party:

         (4)      Date Filed:

                         AMCOL INTERNATIONAL CORPORATION
                               One North Arlington
                        1500 West Shure Drive, Suite 500
                     Arlington Heights, Illinois 60004-7803

                    NOTICE OF SPECIAL MEETING OF SHAREHOLDERS

                           To Be Held On May __, 2000


To Our Shareholders:

     The special meeting of shareholders of AMCOL International Corporation,  or
AMCOL, will take place on __________, May __, 2000, at 10:00 a.m., Chicago time,
at _______________, for the following purposes:

          1. To  consider  and vote upon a proposal  to approve  the sale of our
          superabsorbent   polymers   business,   or  SAP   business,   to  BASF
          Aktiengesellschaft,  or BASF,  pursuant  to the  terms of an Asset and
          Stock  Purchase  Agreement  dated  November  22,  1999.  The  purchase
          agreement provides for the sale of the following to BASF:

               - all  of  the  shares  of  capital  stock  of  AMCOL's  indirect
          subsidiaries Chemdal Corporation and Chemdal Asia Ltd.; and

               -  all  other  assets  of  AMCOL  and  its  subsidiaries  related
          primarily to the SAP business.

               A copy of the  purchase  agreement  is attached as Annex A to the
               accompanying proxy statement.

          2. To  consider  and vote upon a  proposal  to approve  amendments  to
          AMCOL's 1993 Stock Plan and 1998 Long-Term Incentive Plan.

          3. To transact  any other  business  which  properly  comes before the
          special meeting.

     Only  shareholders  of record of  AMCOL's  common  stock as of the close of
business  on April ___,  2000 will be  entitled  to notice of and to vote at the
special meeting and at any adjournments of the special meeting.

     AMCOL's Board of Directors has unanimously  approved the purchase agreement
and the sale transaction,  and believes that the purchase agreement and the sale
transaction  are  fair  to,  and  in

the best  interests  of,  AMCOL and its  shareholders.  The  Board of  Directors
recommends  that you vote "FOR"  approval of the sale  transaction  and the plan
amendments.

     Whether or not you plan to attend the  special  meeting,  please  complete,
sign, date and mail the proxy card in the enclosed self-addressed,  postage-paid
envelope,  or vote by telephone in accordance  with the  instructions  provided.
Please do not submit a proxy card if you have voted by telephone.  If you attend
the  special  meeting,  you may revoke  your proxy and,  if you wish,  vote your
shares in person. Thank you for your interest and cooperation.

                                 By Order of the Board of Directors,



                                 Clarence O. Redman
                                 Secretary


Arlington Heights, Illinois
April __, 2000


                                TABLE OF CONTENTS

                                                                          PAGE

INTRODUCTION................................................................8

SUMMARY.....................................................................10

FORWARD LOOKING STATEMENTS / RISK FACTORS...................................16
         Narrowed Focus of Business.........................................16
         Significant Increase In Shares Subject To Outstanding Options......16
         Use of Proceeds....................................................17
         Competition........................................................17
         Reliance on Metalcasting and Construction Industries...............17
         Contingent Liabilities.............................................18
         Regulatory and Legal Matters.......................................18
         Risks of International Operations..................................18
         Stock Price........................................................19

SELECTED CONSOLIDATED HISTORICAL AND PRO FORMA FINANCIAL AND OPERATING DATA.19

THE COMPANY.................................................................22

THE SPECIAL MEETING.........................................................22
         General............................................................22
         Record Date........................................................22
         Purpose of the Special Meeting; Recommendation of the Board of
         Directors..........................................................22
         Proxies; Vote Required.............................................23
         Proxy Solicitation and Expenses....................................23

PROPOSAL 1:  THE SALE TRANSACTION...........................................24
         General............................................................24
         The SAP Business...................................................24
         Background of the Sale Transaction.................................25
         Opinion of Schroders...............................................31
         Recommendation of the Board........................................36
         Reasons for the Sale Transaction...................................36
         Use of Proceeds....................................................38
         Accounting Treatment...............................................39
         Certain Federal Income Tax Consequences............................39
         Interests of Certain Persons.......................................41
         No Appraisal Rights................................................42


THE PURCHASE AGREEMENT......................................................42
         Purchased Shares and Assets........................................42
         Assumed Liabilities................................................43
         Purchase Price.....................................................44
         The Closing........................................................44
         Representations and Warranties.....................................44
         Conduct of Business................................................45
         No Solicitation....................................................46
         Non-Competition....................................................47
         Employee Matters...................................................48
         Tax Matters........................................................49
         Closing Conditions.................................................49
         Survival of Representations and Warranties; Indemnification........50
         Termination........................................................52
         Expenses 53
         Ancillary Agreements...............................................53

MARKET PRICE DATA; DIVIDENDS................................................54

AMCOL INTERNATIONAL CORPORATION AND SUBSIDIARIESUNAUDITED PRO FORMA CONSOLIDATED
FINANCIAL INFORMATION.......................................................55

UNAUDITED FINANCIAL STATEMENTS OF THE SAP BUSINESS..........................62

PROPOSAL 2:  THE PLAN AMENDMENTS............................................67
         General............................................................67
         The 1993 Plan and the 1998 Plan....................................68
         The Plan Amendments................................................72
         Board Recommendation...............................................73

SECURITY OWNERSHIP..........................................................74
         Security Ownership of Five Percent Beneficial Owners...............74
         Security Ownership of Directors and Executive Officers.............75

NAMED OFFICERS' COMPENSATION................................................77
         Summary Compensation Table.........................................77
         Option Grants in Last Fiscal Year..................................78
         Option Exercises in Last Fiscal Year and Fiscal Year-End Option
Values......................................................................78
         Pension Plans......................................................79
         Change In Control Arrangements.....................................80
         Director Compensation..............................................81
         Compensation Committee Report on Executive Compensation............81
         Compensation Committee Philosophy..................................82
         Components of Compensation.........................................82

         Base Pay 83
         Annual Incentives..................................................83
         Long-Term Incentives...............................................83
         Stock Performance Graph............................................84

INDEPENDENT CERTIFIED PUBLIC ACCOUNTANTS....................................85

SHAREHOLDER PROPOSALS.......................................................85

OTHER MATTERS...............................................................85

ADDITIONAL INFORMATION......................................................86

ANNEXES:

A    Asset and Stock Purchase Agreement
B    Opinion of Schroders

                         AMCOL INTERNATIONAL CORPORATION
                               One North Arlington
                        1500 West Shure Drive, Suite 500
                     Arlington Heights, Illinois 60004-7803

                                 PROXY STATEMENT

                         SPECIAL MEETING OF SHAREHOLDERS

                           To Be Held On May __, 2000

                                  INTRODUCTION

     We are  furnishing  this  proxy  statement  to you in  connection  with the
solicitation  of  proxies  by the  Board of  Directors  of  AMCOL  International
Corporation, or AMCOL, for use at our special meeting of shareholders to be held
on _________,  May ___, 2000, at 10:00 a.m.,  Chicago time, at  _______________,
and at any  adjournment  of the special  meeting.  This proxy  statement and the
accompanying   proxy  card  are  first  being   mailed  or  delivered  to  AMCOL
shareholders on or about April __, 2000.

     At the special  meeting,  you will be asked to  consider  and vote upon the
following matters:

     1.   A proposal to approve the sale of our superabsorbent  polymers
          business,or SAP business, to BASF Aktiengesellschaft,  or BASF,
          pursuant to the terms of an Asset and Stock  Purchase  Agreement
          dated  November  22,1999. The purchase agreement provides for the sale
          of the following to BASF:

                  -        all of the shares of  capital  stock of  AMCOL's
                           indirect  subsidiaries  Chemdal  Corporation  and
                           Chemdal Asia Ltd.; and

                  -        all other  assets of AMCOL  and its  subsidiaries
                           related primarily to the SAP business.

          A copy of the purchase  agreement is attached as Annex A to this proxy
          statement.

     2.   A proposal to approve amendments to AMCOL's 1993 Stock Plan
         and 1998 Long-Term Incentive Plan.

     3.   Any other business which properly comes before the special meeting.

     AMCOL's Board of Directors has unanimously  approved the purchase agreement
and the sale transaction,  and believes that the purchase agreement and the sale
transaction  are  fair  to,  and  in

the best  interests  of,  AMCOL and its  shareholders.  The  Board of  Directors
recommends  that you  vote"FOR"  approval of the sale  transaction  and the plan
amendments.

     In connection with the sale transaction, AMCOL currently intends to adopt a
plan of partial liquidation  pursuant to which AMCOL will distribute pro rata to
its  shareholders  a  significant  portion  of the net  proceeds  from  the sale
transaction. AMCOL currently expects to distribute between $14.00 and $14.50 per
share.  AMCOL currently  expects to make this distribution in the second quarter
of 2000.  We cannot  assure  you that any plan of  partial  liquidation  will be
adopted  or that any  distribution  will be made.  The Board of  Directors  will
consider  the facts and  circumstances  existing  after  completion  of the sale
transaction to determine whether a distribution in partial liquidation is in the
best interests of AMCOL's shareholders at that time and the timing and amount of
any such distribution.  Any plan of partial  liquidation must be approved by the
Board,  but does not require the approval of AMCOL's  shareholders.  You are not
being asked to vote on or approve any plan of partial liquidation.

     Whether or not you plan to attend the  special  meeting,  please  complete,
sign, date and mail the proxy card in the enclosed self-addressed,  postage-paid
envelope,  or vote by telephone in accordance  with the  instructions  provided.
Please do not submit a proxy card if you have voted by telephone.  If you attend
the  special  meeting,  you may revoke  your proxy and,  if you wish,  vote your
shares in person.

              The date of this proxy statement is April ___, 2000.

                                     SUMMARY

     This summary highlights information contained in other places in this proxy
statement.  You should read the entire proxy statement carefully,  including the
"Risk Factors" section and the annexes to this proxy statement.

THE SPECIAL MEETING

Time, Date and Place:  The special  meeting will be held on  ___________,
                       May ___,  2000, at 10:00 a.m.,  Chicago
                       time, at _______________.

Record Date:          Shareholders  of record of AMCOL's  common  stock as of
                      the close of business on April ___, 2000 will be entitled
                      to vote at the special meeting.

Purpose:               1.      To approve  the sale of the SAP  business  to
                    BASF  pursuant to the terms of the purchase  agreement.  The
                    purchase agreement provides for the sale of the following to
                    BASF:

                    -    all of the shares of capital stock of AMCOL's  indirect
                         subsidiaries Chemdal Corporation and Chemdal Asia Ltd.;
                         and

                    -    all other assets of AMCOL and its subsidiaries  related
                         primarily to the SAP business.

                    A copy of the  purchase  agreement is attached as Annex A to
                    this proxy statement.

                    2. To approve amendments to AMCOL's 1993 Stock Plan and 1998
                    Long-Term Incentive Plan.

                    3. To transact such any other  business which properly comes
                    before the special meeting.

Board Recommendations:
                    AMCOL's  Board of  Directors  has  unanimously  approved the
                    purchase  agreement and the sale  transaction,  and believes
                    that the purchase  agreement  and the sale  transaction  are
                    fair  to,  and in the  best  interests  of,  AMCOL  and  its
                    shareholders.  The Board of  Directors  recommends  that you
                    vote "FOR"  approval  of the sale  transaction  and the plan
                    amendments.

Required Vote:
                    The sale  transaction  must be  approved by the holders of a
                    majority of the outstanding  shares of AMCOL's common stock.
                    The plan  amendments  must be  approved  by the holders of a
                    majority of the shares of AMCOL's  common stock  represented
                    at the special meeting.

PROPOSAL 1:  THE SALE TRANSACTION

The Sale Transaction:
                    Under the purchase agreement, AMCOL or its subsidiaries will
                    transfer to BASF or its subsidiaries the following:

                    -    all of the  outstanding  shares of the capital stock of
                         AMCOL's indirect  subsidiaries  Chemdal Corporation and
                         Chemdal Asia Ltd.;  and
                    -    all other assets of AMCOL and its subsidiaries  related
                         primarily to the SAP business.

The Purchase Price:
                    Subject to post-closing  adjustments,  the total amount BASF
                    will pay AMCOL for the SAP business is $656.5 million,  less
                    any  outstanding   intercompany   indebtedness  of  the  SAP
                    business as of the closing. The purchase price consists of:

                    -    subject to post-closing adjustments, $628 million, less
                         any  outstanding  intercompany  indebtedness of the SAP
                         business as of the closing, as the purchase price under
                         the purchase agreement; and
                    -    $28.5 million,  as  consideration  for entering into an
                         Acrylic Acid Supply Agreement.

                              See "The Purchase Agreement - Purchase Price."

Opinion of Schroders:
                    Schroder & Co. Inc.,  our  financial  advisor in  connection
                    with the sale  transaction,  delivered a written  opinion to
                    AMCOL's  Board  of  Directors  that,  as of the  date of the
                    opinion,  the cash consideration to be paid to AMCOL by BASF
                    for the SAP  business  was  fair to AMCOL  from a  financial
                    point of view.  A copy of  Schroders'  opinion,  which  sets
                    forth the assumptions  made, the matters  considered and the
                    scope of its  review,  is  attached  as Annex B hereto.  See
                    "Proposal 1: The Sale Transaction - Opinion of Schroders."

Reasons for the Sale Transaction
                    In  reaching  its  decision  to  recommend  and  approve the
                    purchase agreement, our Board of Directors considered, among
                    other things, the financial performance and future

                    prospects of the SAP business,  current  economic and market
                    conditions in the superabsorbent  polymers industry, and the
                    price and other  terms of the sale  transaction.  For a more
                    detailed review of the reasons for the sale transaction, see
                    "Proposal  1: The Sale  Transaction  - Reasons  for the Sale
                    Transaction."

Use of Proceeds:
                    We expect to receive  approximately  $656.5 million in gross
                    proceeds  from  the  sale  transaction.  See  "The  Purchase
                    Agreement  - Purchase  Price."  From these  gross  proceeds,
                    AMCOL  intends  to repay  indebtedness  of the SAP  business
                    (totaling  approximately  $44.3  million as of December  31,
                    1999)  and  will  pay  various  transaction  related  costs,
                    including  estimated legal,  accounting and advisory fees of
                    $7.5 million,  estimated  employee  bonuses of $3.6 million,
                    estimated filing,  printing and other costs of $1.3 million,
                    estimated  penalties  for  the  prepayment  of  debt of $1.3
                    million,  and  estimated  corporate  income  taxes of $208.4
                    million.

                    In  connection  with  the  sale  transaction,  the  Board of
                    Directors  currently  intends  to  adopt a plan  of  partial
                    liquidation pursuant to which we will distribute pro rata to
                    our  shareholders a significant  portion of the net proceeds
                    from  the  sale   transaction   after  paying  the  expenses
                    described  above.  AMCOL  currently  expects  to  distribute
                    between $14.00 and $14.50 per share in the second quarter of
                    2000.  We  cannot  assure  you  that  any  plan  of  partial
                    liquidation will be adopted or that any distribution will be
                    made.  The Board of  Directors  will  consider the facts and
                    circumstances   existing   after   completion  of  the  sale
                    transaction to determine  whether a distribution  in partial
                    liquidation is in the best interests of AMCOL's shareholders
                    at  that  time  and  the  timing  and  amount  of  any  such
                    distribution.  Any  plan  of  partial  liquidation  must  be
                    approved by the Board,  but will not require the approval of
                    AMCOL's shareholders.  You are not being asked to vote on or
                    approve any plan of partial liquidation. See "Risk Factors -
                    Use of Proceeds" and "Proposal 1: The Sale Transaction - Use
                    of Proceeds."

Certain Federal Income
  Tax Consequences:
                    AMCOL will  recognize a gain on the sale of the SAP business
                    in the sale  transaction,  but no gain will be recognized by
                    you in the sale transaction.


                    Any   distribution  to  you  in  connection  with  the  sale
                    transaction  will be  treated  as a partial  liquidation  of
                    AMCOL for federal  income tax purposes.  A  distribution  in
                    partial liquidation made to non-corporate  shareholders will
                    be treated as an exchange of a portion of the  shareholder's
                    common  stock  for  the  cash  distributed   rather  than  a
                    dividend.  The distribution  will be a dividend in the hands
                    of  corporate  shareholders  to the  extent of  current  and
                    accumulated earnings and profits of AMCOL. The amount of any
                    dividend  not  subject  to  federal  income  tax  due to the
                    corporate   dividends   received  deduction  will  reduce  a
                    corporate shareholder's basis in its AMCOL common stock.

                    For a more  detailed  discussion  of the federal  income tax
                    consequences of the sale transaction and the distribution to
                    AMCOL's shareholders,  see "Proposal 1: The Sale Transaction
                    - Certain Federal Income Tax Consequences." All descriptions
                    of federal income tax  consequences  in this proxy statement
                    are general  and do not address all of the tax  consequences
                    of  the  proposed  distribution  that  may  be  relevant  to
                    particular shareholders. Each shareholder is urged to obtain
                    advice  from his or her own tax  advisor  regarding  the tax
                    consequences of the proposed distribution to them.

No Appraisal Rights:
                    Under Delaware law, you are not entitled to appraisal rights
                    as a result of the sale transaction.

THE PURCHASE AGREEMENT

The Closing:
                    The closing of the sale  transaction  will take place on the
                    tenth  business day  following  the date on which all of the
                    conditions  to each party's  obligations  under the purchase
                    agreement have been satisfied or waived,  or on another date
                    as  the  parties  may  mutually   agree.   It  is  currently
                    anticipated  that  the  closing  will  occur  in the  second
                    quarter of 2000.

Closing Conditions:
                    The  closing  is  conditioned  upon  approval  of  the  sale
                    transaction by AMCOL's  shareholders  and is also subject to
                    the  satisfaction  of  other  conditions,  including  United
                    States antitrust  regulatory  review, and the absence of any
                    material  adverse  change  in the  SAP  business.  See  "The
                    Purchase Agreement - Closing Conditions."

Termination:
                    The   purchase   agreement   may  be   terminated   in  some
                    circumstances, including:

                    -    the breach of any representation, warranty, covenant or
                         agreement  on the part of AMCOL or BASF which  prevents
                         closing conditions to the purchase agreement from being
                         satisfied;

                    -    a vote by AMCOL's  shareholders against approval of the
                         purchase agreement;

                    -    the  issuance of an order by a  governmental  authority
                         restraining or enjoining the purchase agreement; or

                    -    the  failure to  complete  the  transaction  by May 31,
                         2000.

                   See "The Purchase Agreement - Termination."

Expenses:
                    The  purchase   agreement  requires  AMCOL  to  pay  BASF  a
                    termination fee of $20 million plus expenses if the purchase
                    agreement is  terminated  under certain  circumstances.  See
                    "The Purchase Agreement - Expenses."

PROPOSAL 2:  THE PLAN AMENDMENTS

General:
                    The purchase agreement requires AMCOL to cause each unvested
                    stock  option to purchase  shares of AMCOL common stock held
                    by  employees of the SAP business to become fully vested and
                    exercisable   on  or  before   the   closing   of  the  sale
                    transaction.  However,  AMCOL is  unable to  accelerate  the
                    vesting of the options  granted to  employees  who reside in
                    the United Kingdom which were issued under a scheme approved
                    by United  Kingdom  Inland  Revenue  because  the  necessary
                    approvals  were not  received  from  United  Kingdom  Inland
                    Revenue.  Pursuant  to the  purchase  agreement,  AMCOL will
                    either  replace the options  held by these  employees in the
                    United  Kingdom  or  pay  a  special  cash  bonus  to  these
                    employees.  AMCOL  intends to vest the  options  held by all
                    other employees.

                    Your Board of  Directors  has decided to vest these  options
                    prior to the  closing  in order to provide  these  employees
                    with the  opportunity to exercise their options and sell the
                    underlying shares of AMCOL common stock prior to the closing
                    and the  termination  of their  employment  with AMCOL.  The
                    vesting of these options will be contingent

                    upon the receipt of  shareholder  approval  of the  purchase
                    agreement but will not be  contingent  upon closing the sale
                    transaction or the  termination of the employment with AMCOL
                    of the employees of the SAP business.

The Plan Amendments:
                    In order to  accelerate  the vesting of these  options,  the
                    Board of  Directors  has  adopted,  subject  to  shareholder
                    approval,  amendments to AMCOL's 1993 Stock Plan and AMCOL's
                    1998 Long-Term Incentive Plan which:

                    -    provide for the  acceleration of vesting of all options
                         held by  employees  who will become  employees  of BASF
                         except for  nonvested  options held by employees  whose
                         options were issued  under a scheme  approved by United
                         Kingdom Inland Revenue; and
                    -    eliminate the $100,000 cap on the aggregate fair market
                         value of an  employee's  incentive  stock  options,  or
                         ISOs,  which become  exercisable  in any calendar  year
                         pursuant to the 1998 Plan.

                    The   acceleration   of  vesting   will   become   effective
                    immediately upon receipt of shareholder approval of the plan
                    amendments at the special meeting.

                    FORWARD LOOKING STATEMENTS / RISK FACTORS

     Some of the  statements  made in this  proxy  statement  and the  documents
incorporated  by reference in this proxy  statement that are not historical fact
are  forward-looking  statements made in reliance upon the safe harbor contained
in  Section  21E of the  Securities  Exchange  Act of 1934,  as  amended.  These
forward-looking   statements  include  statements   relating  to  AMCOL  or  its
operations   that  are  preceded  by  terms  such  as   "expects,"   "believes,"
"anticipates,"  "intends" and similar  expressions,  and statements  relating to
anticipated growth, levels of capital expenditures,  future dividends, expansion
into global markets and the development of new products.  These  forward-looking
statements  are not  guarantees  of future  performance  and  involve  risks and
uncertainties.  Our actual  results,  performance or  achievements  could differ
materially  from the  results,  performance  or  achievements  expressed  in, or
implied by, these  forward-looking  statements  as a result of various  factors,
including without limitation, the following:

Narrowed Focus of Business

     After the sale of the SAP business,  AMCOL will be  substantially  smaller.
AMCOL will focus on its minerals and  environmental  businesses while continuing
to operate its transportation  business.  The minerals business mines, processes
and distributes clays and similar products. The environmental business processes
and  distributes  clays and similar  products for use in a variety of industrial
and commercial applications.  AMCOL's transportation business provides long-haul
trucking  and freight  brokerage  services  for  AMCOL's  plants and for certain
customers.  The following table sets forth historical financial  information for
these remaining businesses and for the SAP business for the years ended December
31, 1998 and 1999.


                                                                     (In millions)
                                              Net Sales               Gross Profit         Operating Profit (Loss)
                                          1999        1998         1999         1998         1999          1998
                                                                                          
Remaining Businesses                     $299.1      $300.4        $68.9        $64.7       $(8.5)          $8.9
SAP Business                             $252.9      $221.1        $68.9        $46.5        $51.9        $33.3


     The operating loss of the remaining  businesses in 1999 reflects a one-time
charge taken in the fourth quarter totaling $14.6 million.

Significant Increase In Shares Subject To Outstanding Options

     If the Board of Directors  approves the  proposed  distribution  in partial
liquidation,  the  Compensation  Committee  will  be  required  pursuant  to the
Internal  Revenue  Code,  or Code,  to adjust  the  number of shares  subject to
incentive  stock options  outstanding  under AMCOL's 1983 Incentive Stock Option
Plan,  1993 Stock Plan and 1998  Long-Term  Incentive  Plan,  and their exercise
price.  These  adjustments  are  intended to preserve  the ratio of the exercise
price of the  option  to the fair  market  value of  AMCOL's  common  stock.  In
accordance  with the  requirements

of the Code,  the number of shares  subject to incentive  stock options would be
increased to the product of (A) the ratio of the pre-distribution price of AMCOL
common stock to the  post-distribution  price of AMCOL common stock, and (B) the
number of shares subject to incentive  stock  options,  rounded down to the next
whole  number.  The  exercise  price  would be reduced to the product of (A) the
ratio  of  the   post-distribution   price  of   AMCOL   common   stock  to  the
pre-distribution price of AMCOL common stock, and (B) the original option price,
rounded down to the next whole cent. The Compensation  Committee intends to make
similar adjustments to non-qualified stock options outstanding under those plans
or under AMCOL's 1987  Non-Qualified  Stock Option Plan.  As an example,  if the
pre-distribution  price of AMCOL  common  stock  were  $____  per  share and the
post-distribution  price of AMCOL  common  stock  were $____ per share and there
were ______ stock options  outstanding on the distribution date, then the number
of  options  outstanding  would be  increased  to the  product of  ________  and
_________,  or ________  shares.  If the exercise  price were $___, the exercise
price  would be  reduced  to the  product  of ___ and ___,  or $___.  Once these
adjustments are made, the shares subject to outstanding  options will constitute
a significant  portion of AMCOL's  outstanding shares of common stock.  Assuming
the stock  prices set forth above  immediately  after the  distribution  and the
required  adjustment,  shares  subject to outstanding  options would  constitute
_____________  out of ___________  outstanding  shares of AMCOL common stock, or
__%.

Use of Proceeds

     AMCOL expects to receive  approximately  $656.5  million in gross  proceeds
from the sale  transaction.  From these gross  proceeds,  AMCOL intends to repay
certain  indebtedness  of the SAP business and pay various  transaction  related
costs. In connection with the sale transaction, the Board of Directors currently
intends  to adopt a plan of partial  liquidation  pursuant  to which  AMCOL will
distribute  pro  rata  to its  shareholders  a  significant  portion  of the net
proceeds from the sale  transaction  after paying the expenses  described above.
AMCOL currently expects to distribute between $14.00 and $14.50 per share in the
second  quarter  of  2000.  We  cannot  assure  you  that  any  plan of  partial
liquidation will be adopted or that any distribution  will be made. The Board of
Directors will consider the facts and circumstances existing after completion of
the sale transaction to determine whether a distribution in partial  liquidation
is in the best interest of AMCOL's  shareholders at that time and the timing and
amount  of any  such  distribution.  Any  plan of  partial  liquidation  must be
approved  by  the  Board,   but  does  not  require  the   approval  of  AMCOL's
shareholders.  You are not being asked to vote on or approve any plan of partial
liquidation. See "Proposal 1: The Sale Transaction - Use of Proceeds."

Competition

     The  minerals  market  is  very  competitive.  We  believe  competition  is
essentially a matter of product quality, price, delivery,  service and technical
support.  Several of our  competitors in the United States market are larger and
have  substantially   greater  financial  resources.   If  we  fail  to  compete
successfully  based on these or other factors,  we may lose customers or fail to
recruit new  customers  and our business and future  financial  results could be
materially and adversely affected.

Reliance on Metalcasting and Construction Industries

     Approximately  48%  of  our  minerals   segment's  sales  and  31%  of  our
environmental  business' sales in 1999 were to the metalcasting and construction
markets,  respectively. The metalcasting and construction markets depend heavily
upon  the  strength  of the  domestic  and  international  economies.  If  these
economies  weaken,  demand  for  products  from  our  minerals  business  by the
metalcasting  market and from our  environmental  business for the  construction
markets may  decline  and our  business  or future  financial  results  could be
materially and adversely affected.

Contingent Liabilities

     Under the purchase  agreement,  AMCOL has agreed to indemnify  BASF for the
breach of its representations and warranties contained in the purchase agreement
and other matters. See "The Purchase Agreement - Survival of Representations and
Warranties;  Indemnification."  If the  proceeds  of the  sale  transaction  are
distributed to AMCOL's shareholders, AMCOL would be required to fund the payment
of any indemnification  claims by BASF under the purchase agreement or otherwise
out of its then  existing  working  capital  and cash flows from its  continuing
businesses.  For  example,  an  indemnification  claim by BASF  might  result if
representations  by AMCOL about the SAP business made in the purchase  agreement
are later proved to be materially incorrect.  Significant indemnification claims
by BASF could  materially and adversely affect AMCOL's  financial  condition and
profitability.

Regulatory and Legal Matters

     Our operations  are subject to various  federal,  state,  local and foreign
laws and  regulations  relating  to the  environment  and to health  and  safety
matters.  Substantial  penalties  may be imposed  if we  violate  these laws and
regulations. If these laws or regulations are changed or interpreted differently
in the  future,  it may become  difficult  or  expensive  for us to  comply.  In
addition,  investigations or evaluations of our products by government  agencies
may require us to adopt additional safety measures or precautions.  If our costs
to comply with such laws and regulations in the future materially increase,  our
business  and  future  financial  results  could  be  materially  and  adversely
affected. AMCOL may be subject to adverse litigation results, as well as, future
changes in laws and regulations  which may negatively  impact its operations and
profits.

Risks of International Operations

     After the sale  transaction,  we expect our business  outside of the United
States  to  represent   approximately   26%  of  our  consolidated   sales.  Our
international  operations  will be  subject  to  various  risks,  including  the
following:

         -        currency exchange or price control laws;
         -        currency translation adjustments;
         -        political and economic instability;
         -        unexpected changes in regulatory requirements;

         -        tariffs and other trade barriers;
         -        longer accounts receivable collection cycles; and
         -        potentially adverse tax consequences.

     The events listed above could result in sudden, and potentially  prolonged,
changes in demand for AMCOL's products.  Also, we may have difficulty  enforcing
agreements and collecting  accounts receivable through a foreign country's legal
system. At December 31, 1999, approximately 47% of our gross accounts receivable
from our continuing  businesses  were due from  customers  outside of the United
States and Canada. Stock Price

     In connection with the sale transaction, AMCOL currently intends to adopt a
plan of partial liquidation  pursuant to which AMCOL will distribute pro rata to
its  shareholders  a  significant  portion  of the net  proceeds  from  the sale
transaction. See "Proposal 1: The Sale Transaction - Use of Proceeds." After the
record date of any  distribution,  the market price of AMCOL's common stock will
significantly  decrease to reflect the payment of this  distribution  to AMCOL's
shareholders.

     The stock market has been extremely  volatile in recent years.  These broad
market  fluctuations  may adversely affect the market price of our common stock.
In addition,  factors such as the following may have a significant effect on the
market price of our common stock:

         -        fluctuations in our financial results;
         -        our introduction of new services or products;
         -        announcements  of  acquisitions,  strategic  alliances  or
                  joint ventures by us, our customers or our competitors;
         -        changes in analysts'  recommendations regarding our common
                  stock; and
         -        general economic conditions.

     There can be no  assurance  as to the price our common  stock will trade at
after the sale of the SAP business and the record date for any  distribution  to
AMCOL's shareholders in connection with the sale transaction.

                                        SELECTED CONSOLIDATED HISTORICAL AND
                                       PRO FORMA FINANCIAL AND OPERATING DATA

     The following  tables set forth the selected  financial  data as of and for
the twelve  months ended  December  31, 1995,  1996,  1997,  1998 and 1999.  The
financial  data in the  "Historical"  table  insofar  as it relates to the years
ended December 31, 1995, 1996, 1997, 1998 and 1999 has been derived from AMCOL's
audited consolidated  financial statements,  which are incorporated by reference
in this Proxy  Statement.  The  financial  data in the "Pro  Forma"  table gives
effect to the  consummation  of the sale  transaction  and the  proposed  use of
proceeds as consummated: on December 31, 1995, 1996, 1997, 1998 and 1999, in the
case of the respective Pro Forma Balance Sheet financial data; and on January 1,
the first day of AMCOL's fiscal year, in the case of the Pro Forma  Statement of
Operations Data for the fiscal years ended December 31, 1995, 1996, 1997,

1998 and 1999,  and are derived from AMCOL's  Unaudited  Pro Forma  Consolidated
Financial  Information  and  notes  thereto  included  elsewhere  in this  Proxy
Statement.

     The  selected  consolidated  pro  forma  financial  and  operating  data is
presented for illustrative  purposes only and does not necessarily  reflect what
our  financial  position  and results of  operation  would have been if the sale
transaction  and the proposed use of proceeds had been  consummated on the above
referenced dates, and may not be indicative of our future performance.

     The selected consolidated  historical and pro forma financial and operating
data is qualified in its  entirety by, and should be read in  conjunction  with,
AMCOL's  audited  consolidated  financial  statements  and the notes thereto and
Management's  Discussion  and  Analysis of  Financial  Condition  and Results of
Operations  which are  incorporated  by  reference to this Proxy  Statement  and
AMCOL's Unaudited Pro Forma Consolidated Financial Information and notes thereto
which are included elsewhere in this Proxy Statement.



                                      SUMMARY OF OPERATIONS DATA - HISTORICAL
                           (In thousands, except ratios and share and per share amounts)
                                                                Year Ended December 31,
PER SHARE                                1999            1998            1997            1996            1995
                                                                                            
Stockholders' equity (1)                      $6.94           $6.44           $6.18           $5.87           $5.42
Basic earnings (2)                             0.83            0.79            0.74            0.53            0.62
Diluted earnings (3)                           0.82            0.78            0.72            0.52            0.60
Dividends                                      0.27            0.23            0.21            0.19            0.17
Shares outstanding (3)                   27,199,263      28,385,860      29,125,168      29,294,489      29,519,220
INCOME DATA
Sales                                      $552,052        $521,530        $477,060        $405,347        $347,688
Gross profit                                137,796         111,171         100,741          84,311          76,562
Operating profit                             43,433          42,220          41,469          32,337          32,397
Net income                                   22,234          22,085          21,044          15,225          17,771
BALANCE SHEET DATA
Current assets                             $164,770        $164,076        $150,270        $147,773        $126,337
Net property, plant and equipment           172,408         171,478         175,324         180,876         175,211
Total assets                                349,007         357,864         351,009         350,708         322,366
Current liabilities                          59,715          74,083          67,241          51,870          35,882
Long-term debt                               93,914          96,268          94,425         118,855         117,016
Stockholders' equity                        186,440         172,914         175,943         167,404         155,494



                                      SUMMARY OF OPERATIONS DATA - PRO FORMA
                           (In thousands, except ratios and share and per share amounts)
                                                                Year Ended December 31,
PER SHARE                                1999            1998            1997            1996            1995
                                                                                            
Stockholders' equity (1)                      $4.12           $4.63           $4.82           $4.70           $4.59
Basic earnings (2) (loss)                    (0.23)            0.19            0.28            0.24            0.31
Diluted earnings (3) (loss)                  (0.23)            0.18            0.28            0.24            0.30
Dividends                                      0.27            0.23            0.21            0.19            0.17
Shares outstanding (3)                   27,199,263      28,385,860      29,125,168      29,294,489      29,519,220
INCOME DATA
Sales                                      $299,144        $300,437        $281,116        $251,481        $226,926
Gross profit                                 68,894          64,713          59,780          53,893          50,724
Operating profit (loss)                     (7,160)           8,969          12,606          12,710          15,495
Net income (loss)                           (6,161)           5,187           8,228           6,982           8,999
BALANCE SHEET DATA
Current assets                              $99,888        $111,524         $99,603         $95,626         $85,062
Net property, plant and equipment            89,260          92,063          90,885          85,324          90,101
Total assets                                200,977         225,887         215,902         202,303         195,974
Current liabilities                          34,980          55,082          51,392          36,213          26,634
Long-term debt                               49,625          37,274          16,927          21,407          25,199
Stockholders' equity                        110,536         124,460         137,119         133,797         131,619
<FN>
(1)  Based on the number of common shares outstanding at the end of the period.
(2)  Based on the weighted average common shares outstanding for the period.
(3)  Based on the weighted average common shares outstanding, including common stock equivalents, for the period.
</FN>


                                   THE COMPANY

     AMCOL International  Corporation,  or AMCOL, was originally incorporated in
South Dakota in 1924 as the Bentonite Mining & Manufacturing  Company.  Its name
was  changed  to  American  Colloid  Company  in  1927,  and  in  1959,  it  was
reincorporated in Delaware. In 1995, its name was changed to AMCOL International
Corporation.

     AMCOL  currently  operates  three  major  businesses:  absorbent  polymers,
minerals and  environmental.  We also  operate a  transportation  business.  The
absorbent  polymers  business produces and distributes  superabsorbent  polymers
primarily for use in consumer markets.  The minerals  business mines,  processes
and  distributes  clays  and  products  with  similar  applications  to  various
industrial  and consumer  markets.  The  environmental  business  processes  and
distributes  clays and products with similar  applications for use in commercial
construction,  landfill  liners  and  in  a  variety  of  other  industrial  and
commercial  applications.  The  transportation  business  includes  a  long-haul
trucking  business and a freight brokerage  business,  which provide services to
both AMCOL's plants and outside customers.

     We have entered into an agreement to sell our absorbent  polymers business.
See "Proposal 1: The Sale Transaction."

                               THE SPECIAL MEETING

General

     We are  furnishing  this  proxy  statement  to you in  connection  with the
solicitation  of  proxies  by the  Board of  Directors  of AMCOL  for use at the
special meeting to be held on __________,  May ___, 2000, at 10:00 a.m., Chicago
time, at _______________ and at any adjournment of the special meeting.

Record Date

     The Board of Directors  has fixed the close of business on April ___,  2000
as the record date for the determination of shareholders  entitled to notice of,
and to vote at,  the  special  meeting  or any  adjournment.  Accordingly,  only
holders of record of AMCOL's common stock at the close of business on the record
date will be entitled to vote at the special meeting, either by proxy, telephone
or in person.  As of the record date,  there were  __________  shares of AMCOL's
common stock issued and outstanding. Each share of AMCOL's common stock entitles
the holder to one vote.

Purpose of the Special Meeting; Recommendation of the Board of Directors

     At the special meeting,  AMCOL's shareholders will be asked to consider and
vote upon the following matters:

          -    a proposal  to approve  the sale by AMCOL of the SAP  business to
               BASF;

          -    a proposal to approve  certain  amendments  to AMCOL's 1993 Stock
               Plan and 1998 Long-Term  Incentive Plan; and
          -    any other  business  which  properly  comes  before  the  special
               meeting.
     AMCOL's Board of Directors has unanimously  approved the purchase agreement
and the sale transaction,  and believes that the purchase agreement and the sale
transaction  are  fair  to,  and  in  the  best  interests  of,  AMCOL  and  its
shareholders.  The Board of Directors recommends that you vote "FOR" approval of
the sale transaction and the plan amendments.

Proxies; Vote Required

     Under Delaware law, the plan  amendments must be approved by the holders of
a majority  of the shares of AMCOL's  common  stock  represented  at the special
meeting.  The  affirmative  vote of the holders of a majority of the outstanding
shares of AMCOL's common stock are required to approve the sale transaction.

     All  properly  executed  proxies  received  by AMCOL  prior to the  special
meeting and not revoked will be voted in accordance with the instructions marked
on those proxies. Unless contrary instructions are marked, proxies will be voted
"FOR" the sale transaction and the plan amendments. The Board of Directors knows
of no other  business which will be presented for  consideration  at the special
meeting. If any other matter is properly  presented,  it is the intention of the
persons  named in the  enclosed  proxy to vote in  accordance  with  their  best
judgment.  Any  shareholder may revoke his or her proxy at any time prior to the
exercise of the proxy by doing any of the following:

          -    giving  written  notice  to the  Secretary  of AMCOL at One North
               Arlington,  1500 West Shure Drive,  Suite 500, Arlington Heights,
               Illinois 60004-7803;
          -    submitting a duly executed proxy bearing a later date;
          -    voting by telephone on a later date; or
          -    attending the special meeting and voting in person.

     Attendance  at  the  special  meeting  will  not,  in  itself,   constitute
revocation of a proxy.

     The  presence,  in person or by proxy,  of the holders of a majority of the
outstanding  shares of AMCOL's  common stock is necessary to constitute a quorum
at the special  meeting.  In deciding all questions,  a holder of AMCOL's common
stock is  entitled  to one vote,  in person or by proxy,  for each share held in
such  holders'  name on the record date.  Abstentions  and broker  non-votes are
counted for purposes of determining  the presence or absence of a quorum for the
transaction of business but are not counted for purposes of determining  whether
a proposal has been approved.  Thus,  abstentions and broker non-votes will have
the same effect as a vote against the plan amendments.

Proxy Solicitation and Expenses

     The  accompanying  proxy is  being  solicited  on  behalf  of the  Board of
Directors of AMCOL.  All expenses of this  solicitation,  including  the cost of
preparing and mailing this proxy statement,


will be paid by AMCOL.  Solicitation of holders of AMCOL's common stock by mail,
telephone,  facsimile  or by  personal  solicitation  may be done by  directors,
officers  and  regular  employees  of AMCOL,  for which  they  will  receive  no
additional  compensation.  Brokerage houses and other nominees,  fiduciaries and
custodians  nominally  holding  shares of AMCOL's  common stock as of the record
date will be requested to forward proxy  soliciting  material to the  beneficial
owners of such  shares,  and will be  reimbursed  by AMCOL for their  reasonable
out-of-pocket expenses.

                        PROPOSAL 1: THE SALE TRANSACTION

General

     Under the purchase agreement, AMCOL will transfer to BASF the following:

          -    all of the  outstanding  shares of the  capital  stock of AMCOL's
               indirect  subsidiaries  Chemdal  Corporation,  or Chemdal US, and
               Chemdal Asia Ltd., or Chemdal Asia; and

          -    all other assets of AMCOL and its subsidiaries  related primarily
               to the SAP business.

     Subject to certain post-closing adjustments,  the total consideration to be
paid to  AMCOL  by BASF  for  the SAP  business  is  $656.5  million,  less  any
outstanding intercompany indebtedness of the SAP business as of the closing. The
purchase price consists of, subject to certain  post-closing  adjustments,  $628
million, less any outstanding  intercompany  indebtedness of the SAP business as
of the closing,  as the purchase price under the purchase  agreement,  and $28.5
million,  as consideration  for entering into an Acrylic Acid Supply  Agreement.
See "The Purchase Agreement - Purchase Price."

     The  sale  transaction  does not  include  the  sale of  AMCOL's  Poly-Pore
business which includes the business of researching,  manufacturing  and selling
of microporous oil and/or water absorbent  polymers capable of entrapping solids
and  liquids.  The  Poly-Pore  business  was  accounted  for as  part of the SAP
business.

The SAP Business

     Substantially  all of the SAP  business is  conducted  through  Chemdal US,
Chemdal Limited, and Chemdal Asia and includes  manufacturing  operations in the
United  States,  the United  Kingdom and Thailand.  Generally,  the SAP business
produces  superabsorbent  polymers for use in  disposable  baby  diapers,  adult
incontinence and feminine hygiene  products,  and other absorbent  personal care
items.  The following  table sets forth  historical  financial  information  for
AMCOL's  remaining  businesses  and for the SAP  business  for the  years  ended
December  31, 1998 and 1999.  See  "Unaudited  Financial  Statements  of the SAP
Business."



                                                                      (In millions)
                                              Net Sales               Gross Profit         Operating Profit (Loss)
                                          1999        1998         1999         1998         1999          1998
                                                                                        
SAP Business                             $252.9      $221.1        $68.9        $46.5        $51.9        $33.3


     The  following  tables set forth the  percentage  of total  assets of AMCOL
attributable to the SAP business and the remaining  businesses as of December 31
of each of the last three calendar years,  and the percentage  contributions  to
net sales of AMCOL attributable to the SAP business and the remaining businesses
for each of the last three calendar years.



                                                               Percentage of Total Assets as of
                                                    12/31/1999             12/31/1998              12/31/1997
                                                                                            
SAP Business                                          42.4%                   36.9%                  38.5%
Remaining Businesses                                  57.6%                   63.1%                  61.5%
                                                      100.%                  100.0%                  100.0%




                                                           Percentage of Net Sales for the Year Ended
                                                    12/31/1999             12/31/1998              12/31/1997
                                                                                            
SAP Business                                          45.8%                   42.4%                  41.1%
Remaining Businesses                                  54.2%                   57.6%                  58.9%
                                                      100.0%                 100.0%                  100.0%


Background of the Sale Transaction

     We continually  review our strategic focus in order to identify  strategies
to enhance shareholder value. In reviewing our possible strategic  alternatives,
we consider the changing competitive  environment in the industries in which our
absorbent  polymers,  minerals  and  environmental  businesses  operate  and the
financial  performance,  business  operations,  capital  requirements and future
prospects of these businesses.

     On April 1,  1999,  Lawrence  Washow,  the  President  and Chief  Operating
Officer of AMCOL,  received an unsolicited inquiry from a representative of BASF
requesting a meeting with AMCOL relating to the SAP business.

     In early  April of 1999,  an  executive  of  Company  A  contacted  Gary L.
Castagna,  a Vice President of AMCOL and the President of Chemdal  International
Corporation,  to  determine  whether  AMCOL was  interested  in pursuing a joint
venture  combining  Company A's  superabsorbent  polymer  business  with the SAP
business.

     On April 15, 1999,  Mr.  Castagna  and Mr.  Washow met with an executive of
Company  A  to  discuss  a  possible   joint  venture   involving  each  party's
superabsorbent polymers business.

     On April 19, 1999, John Hughes, the Chairman and Chief Executive Officer of
AMCOL, Mr. Washow, and Mr. Castagna met with Dr. Joseph Kohnle, President of the
Dispersions  Group of BASF,  and Cenan  Ozmeral,  Group Vice  President  of BASF
Corporation, at AMCOL's offices in Arlington Heights, Illinois. At this meeting,
BASF indicated to AMCOL that it was interested in acquiring the SAP business and
the parties held preliminary  discussions regarding the possible sale of the SAP
business to BASF.

     On April 28, 1999, AMCOL held a meeting of its Board of Directors.  At this
meeting Mr. Hughes,  Mr. Washow and Paul G. Shelton, a Senior Vice President and
the  Chief  Financial  Officer  of AMCOL,  briefed  the  Board of  Directors  on
strategic  alternatives for the SAP business,  including the recent  discussions
with BASF. After  discussion,  the Board of Directors  instructed  management to
continue discussions with BASF regarding a possible sale of the SAP business. On
the same date, Mr. Hughes sent a letter to Dr. Kohnle of BASF indicating AMCOL's
proposed valuation of the SAP business.

     On May 6, 1999,  Mr.  Hughes  and Mr.  Washow met Dr.  Kohnle,  Dr.  Harald
Schultheiss,  Director,  Dispersions of BASF and other BASF representatives,  in
Frankfurt,  Germany,  to discuss the possible  sale of the SAP business to BASF.
Discussions  focused  on  the  historical   performance  of  the  SAP  business,
comparable  acquisitions  in the  specialty  chemical  business  and  methods of
valuing the SAP business.

     On May 11, 1999,  AMCOL held its annual  meeting of the Board of Directors.
At the  meeting,  AMCOL's  management  updated the Board of  Directors as to the
status of  discussions  with BASF and the  contact  by  Company  A  regarding  a
possible joint venture.

     On May 14,  1999,  Mr.  Hughes,  Mr.  Washow and Mr.  Castagna  met with an
executive  of Company A to  continue  discussions  regarding  a  possible  joint
venture involving each party's  superabsorbent  polymers business.  During these
discussions,  AMCOL  indicated to Company A that it would also consider  selling
the SAP business and suggested that Company A consider making an offer.  Company
A indicated that it was more  interested in forming a joint venture,  but agreed
to review a possible acquisition of the SAP business.

     On May 17, 1999, AMCOL and BASF executed Secrecy Agreements  obligating the
parties to maintain the confidentiality of shared confidential  information.  On
the same date, Mr.  Castagna and Mr. Shelton met with Dr.  Schultheiss and other
BASF  representatives  in Frankfurt,  Germany.  At these  meetings,  the parties
discussed  BASF's  initial  valuation  for the SAP  business.  The parties  also
reviewed  strategies  for  structuring  the  transaction,   business  synergies,
potential for new technologies,  and possible risks associated with the proposed
transaction.

     On May 20,  1999,  Mr.  Hughes  and Mr.  Washow  met with Dr.  Kohnle,  Dr.
Schultheiss,  and other BASF  representatives in Frankfurt,  Germany, to further
discuss the valuation of the SAP business.

     On May 28, 1999,  Company A informed  AMCOL that it would not make an offer
to acquire the SAP business at that time,  but  reiterated  its  willingness  to
discuss the  formation  of a joint  venture  consisting  of the SAP business and
Company A's superabsorbent polymer business. However, the proposed joint venture
would not provide for the supply of acrylic acid.

     On June 22, 1999,  Mr.  Hughes and Mr. Washow met with Dr. Kohnle and other
BASF  representatives  in  Frankfurt,  Germany.  At this  meeting,  the  parties
discussed  various  structures  for  BASF's  proposed  acquisition  of  the  SAP
business,  including  the  sale  of  the  stock  and  assets  of  certain  AMCOL
subsidiaries and a structure in which AMCOL would spin-off all of its businesses
other than the SAP business  immediately prior to the acquisition of AMCOL (then
consisting  of the SAP  business)  by BASF  through a merger of AMCOL and a BASF
subsidiary.  The spin-off/merger structure was favored by AMCOL over the sale of
the stock and assets of the  subsidiaries  since the  spin-off/merger  structure
provided the most tax efficient structure for AMCOL and its shareholders.

     On June 28, 1999,  Mr.  Hughes,  Mr.  Washow and Mr.  Castagna met with two
executives  from Company A in Chicago,  Illinois to further discuss the possible
formation of a joint venture. The parties also discussed preliminary  valuations
of the SAP business.

     On June 30, 1999,  Mr.  Shelton and Dr.  Schultheiss  of BASF  discussed by
telephone various issues regarding the possible
acquisition of the SAP business by BASF.

     On July 7, 1999, AMCOL and Company A executed a confidentiality  agreement.
On the same date,  AMCOL provided Company A with a copy of the business plan for
the SAP business.

     On July 22, 1999, Mr. Shelton and Dr. Schultheiss of BASF participated in a
conference call with their respective  legal and accounting  advisors to discuss
alternative  structures  for the sale of the SAP  business to BASF.  The parties
discussed the federal  income tax  consequences  of the proposed  transaction to
AMCOL and its shareholders.

     On July 26, 1999, AMCOL engaged Schroder & Co. Inc. to act as its exclusive
financial advisor in connection with a possible sale of the SAP business.  After
its  engagement,  Schroders  contacted  four other  likely  potential  buyers to
determine their level of interest in acquiring the SAP business.  As a result of
these  contacts,  Schroders  received an  indication  of interest from Company B
regarding a possible transaction.

     On July 27 and 28, 1999, Mr. Shelton and AMCOL's legal counsel met with Dr.
Schultheiss,  Dr.  Wolf-Dieter  Starp,  Director  of  Subsidiary  Financing  and
Acquisitions of BASF, Dr. Jorg  Buchmuller,  director of BASF, Mr. Ozmeral,  and
other BASF  representatives in the New York office of BASF's legal counsel.  The
parties  discussed  terms  for  a  possible  transaction,  including  price  and
structure.  BASF  also  requested  that  the  directors  and  certain  of  their
affiliates  agree to vote  their  shares of AMCOL  common  stock in favor of the
proposed transaction.

     On July 29, 1999,  Mr. Hughes and Dr. Kohnle of BASF discussed the proposed
transaction  in a telephone  call.  Later that day, Mr.  Hughes sent a follow-up
letter to Dr. Kohnle  indicating  that AMCOL would not consider an offer of less
than $540 million,  excluding  working  capital,  for the SAP business,  using a
spin-off/merger structure.

     On August 4, 1999, Mr. Hughes,  Mr. Washow,  Mr. Shelton and Mr.  Castagna,
AMCOL's legal counsel and Schroders met with Dr.  Kohnle,  Dr.  Schultheiss  and
other BASF  representatives  at Schroders' offices in London,  England.  At this
meeting, the parties discussed a purchase price of approximately $555.5 million,
including  working  capital,  for the  SAP  business,  using  a  spin-off/merger
structure.

     On August 9, 1999,  Mr. Hughes met with  representatives  from Company A to
determine  Company A's interest in pursuing a  transaction  and whether  further
discussions  were  warranted.  During this meeting,  the parties also  discussed
preliminary  valuations  for  the  SAP  business.  On  August  __,  1999,  AMCOL
terminated discussions with Company A because Company A's preliminary indication
of the  valuation of the SAP business  was  insufficient,  and Company A was not
willing to discuss any increase in value.

     On August 10, 1999, AMCOL held a meeting of its Board of Directors.  At the
meeting,  AMCOL's  management advised the Board of Directors as to the status of
discussions  with BASF and Company A. The Board  discussed  and  considered  its
fiduciary  duties in connection  with a possible  sale of the SAP business.  The
Board of Directors  discussed current conditions in the  superabsorbent  polymer
industry and AMCOL's strategic alternatives. The Board of Directors approved the
retention of Schroders as AMCOL's  financial advisor in connection with the sale
of the SAP business.

     On September 1 and 2, 1999, Mr. Shelton,  Mr. Castagna,  and Mark Anderson,
the Vice  President of Corporate  Development of AMCOL and the Vice President of
Absorbent Technologies for Chemdal US, met with Dr. Schultheiss, Dr. Buchmuller,
Mr.  Ozmeral  and other BASF  representatives  in  Chicago,  Illinois.  At these
meetings,  BASF informed AMCOL that the proposed structure of the transaction as
a  spin-off/merger  was  unacceptable  to BASF and proposed to  restructure  the
transaction  such that BASF would  acquire the SAP  business by  purchasing  the
assets and stock of certain of AMCOL's subsidiaries. BASF also indicated that it
would be willing to increase  the  purchase  price for the SAP  business to take
into account the greater tax benefits of the proposed structure to BASF.

     On  September  6, 1999,  Mr.  Hughes  spoke by  telephone  with Dr.  Kohnle
regarding BASF's proposed change in the transaction structure. On the same date,
Mr. Hughes sent a letter to BASF  requesting  additional  information  regarding
BASF's  proposed  transaction  structure and advising BASF that AMCOL would need
time to review its new proposal.

     On  September 8, 1999,  Dr.  Kohnle  provided a revised term sheet  setting
forth its  proposed  terms for the  purchase  of the SAP  business.  In the term
sheet, BASF indicated that it would raise its offer for the SAP business to $650
million,  using an  asset/stock  purchase  structure.  The term  sheet  included
information regarding the acquisition structure,  the scope of the due diligence
review and the treatment of employees of the SAP business.

     On September 14, 1999, Mr. Hughes and Dr. Kohnle discussed by telephone the
tax impact of BASF's proposed  change in the  transaction  structure and various
other matters. Mr. Hughes and Dr. Kohnle discussed the fact that the asset/stock
purchase  structure  was more tax  efficient for BASF and less tax efficient for
AMCOL and its shareholders. Dr. Kohnle and Mr. Hughes discussed an adjustment to
the purchase price based on using an asset/stock  purchase  structure instead of
the spin-off/merger  structure.  On September 16, 1999, Dr. Kohnle sent a letter
to Mr. Hughes informing AMCOL that BASF was raising its offer to acquire the SAP
business to $660 million, using an asset/stock purchase structure.

     On September  22, 1999,  Mr.  Hughes,  Mr.  Washow and  Schroders  met with
representatives  of  Company B.  During  the  meeting,  Company B  expressed  an
interest in acquiring the SAP business,  although a specific  purchase price was
not discussed.

     On  October  1,  1999,  Mr.  Hughes and Mr.  Shelton  met Dr.  Kohnle,  Dr.
Schultheiss and other BASF  representatives  in Frankfurt,  Germany to negotiate
various terms of the proposed transaction.

     On October 5 and 6, 1999, Mr. Shelton,  AMCOL's legal counsel and Schroders
met with Dr. Schultheiss and other BASF representatives in New York to negotiate
the terms of an acquisition  agreement and discuss  various other aspects of the
proposed transaction, including lock-ups and break-up fees.

     On October  6,  1999,  Mr.  Shelton  and  AMCOL's  legal  counsel  met with
representatives  of Company C to discuss  whether a sale of the SAP  business to
Company C using a spin-off/merger  structure could be arranged to take advantage
of certain tax benefits available to Company C.

     On October 8, 1999,  Company B orally advised  Schroders of its preliminary
indication  of value for the SAP  business.  This  indication of value was lower
than the price offered by BASF.

     On October 8, 1999, AMCOL held a meeting of its Board of Directors. At this
meeting,  Mr.  Hughes  advised  the Board  that  Company B had  withdrawn  their
consideration  of an acquisition  of the SAP business.  Company B indicated that
its interest in purchasing the SAP business at that time was not high because of
other pending  transactions.  AMCOL's  management  also reported to the Board of
Directors on the status of its  discussions  with BASF regarding the sale of the
SAP business.

     On October 14, 1999, AMCOL held a meeting of its Board of Directors. At the
meeting,  AMCOL's  management  advised the Board of  Directors  on the status of
discussions with BASF and the preliminary discussions with Company C regarding a
possible  transaction.  Schroders  also  gave a  presentation  to the  Board  of
Directors  in  which  it  described  the  current   structure  of  the  proposed
transaction,  and reviewed its analysis of the value of the SAP business.  After
Schroders'  presentation,  the Board of Directors discussed the various terms of
the proposed transaction with BASF.

     On October  14,  1999,  Mr.  Hughes,  Mr.  Shelton and  Schroders  met with
representatives  of  Company C in  Chicago,  Illinois,  to further  discuss  the
possibility  of selling the SAP  business  to Company C using a  spin-off/merger
structure.

     On  October  15,  1999,  Mr.  Hughes  met with Dr.  Kohnle  and other  BASF
representatives  in London,  England  and  advised  him of  AMCOL's  preliminary
discussions  with  Company C  regarding a possible  sale of the SAP  business to
Company C using a  spin-off/merger  structure and the possible resale of the SAP
business by Company C to BASF.

     On October 20, 1999,  AMCOL  received a preliminary  indication of interest
from Company C to acquire the SAP business using a spin-off/merger structure for
a purchase  price of $614  million.  The  indication  of interest was subject to
Company C obtaining  financing,  satisfactory due diligence,  minimum valuations
for  the  net  assets  to  be  acquired,  and  obtaining  applicable  regulatory
approvals.

     On October 20, 1999, Mr.  Shelton,  AMCOL's legal counsel and Schroders met
with Dr.  Schultheiss  and other  BASF  representatives  in New York to  further
negotiate  the terms of an  acquisition  agreement  and  discuss  various  other
aspects of the proposed transaction.

     On October 28, 1999,  Dr. Kohnle  informed Mr. Hughes by telephone that the
BASF  Supervisory  Board  approved the decision of BASF to make an offer of $660
million for the SAP business.

     On November 2 and 3, 1999, Mr. Hughes,  Mr. Shelton,  AMCOL's legal counsel
and Schroders met with Dr. Kohnle and other BASF  representatives in New York to
discuss the terms of the proposed transaction.

     On November 4, 1999, AMCOL held a meeting of its Board of Directors. At the
meeting,  the Board discussed the terms of the proposed sale of the SAP business
to BASF. The Board also reviewed the status of the  discussions  with Company C.
After  discussion,   the  Board  instructed   management  to  terminate  further
discussions with Company C based on the Board's  concerns  relating to potential
adverse tax consequences of the proposed transaction, timing issues and concerns
over Company C's ability to finance and close the proposed transaction.

     On November 8, 1999, Mr. Hughes received a call from Dr. Kohnle  requesting
a meeting in New York on the next day to  discuss  the  transaction.  Later that
day,  AMCOL's  Board of Directors met to review and discuss the proposed sale of
the SAP business to BASF. At the meeting, Mr. Hughes reported BASF's request for
a meeting  the next day in New York.  Schroders  then  reviewed  its  efforts to
identify other potential buyers of the SAP business and delivered a presentation
to the Board and its  opinion  that the  consideration  to be  received by AMCOL
pursuant to the purchase  agreement is fair,  from a financial point of view, to
AMCOL.  AMCOL's legal counsel gave a  presentation  to the Board on the terms of
the purchase agreement and related  documents.  The Board discussed the terms of
the proposed  sale of the SAP business to BASF and asked  questions of Schroders
and AMCOL's legal counsel.  Following this discussion, the Board determined that
the purchase  agreement  and the sale  transaction  are fair to, and in the best
interests of, AMCOL and its  shareholders,  approved the purchase  agreement and
the sale  transaction,  and  recommended  approval of the purchase  agreement by
AMCOL's shareholders.

     On November 9, 1999, Mr. Hughes,  Mr. Washow,  Mr.  Shelton,  AMCOL's legal
counsel and Schroders met with Dr. Kohnle, Dr. Schultheiss, Dr. Jorg Buchmuller,
and other BASF executives in New York. The purpose of the meeting was to discuss
an  adjustment  to the proposed  purchase  price for the SAP  business  based on
BASF's further analysis of future  obligations of the SAP business under certain
acrylic acid supply contracts.  On the next day, Mr. Hughes and Dr. Kohnle spoke
by telephone  and agreed to a $3.5 million  downward  adjustment in the purchase
price for the SAP business.

     On November 22, 1999,  AMCOL held a meeting of its Board of  Directors.  At
this meeting,  AMCOL's legal counsel reported to the Board of Directors that the
agreement  with BASF for the sale of the SAP  business  had been  finalized  and
advised  the Board of the changes in the terms of the  proposed  sale of the SAP
business,  including a $3.5 million  downward  adjustment to the purchase price.
Schroders  then  reported to the Board that it had reviewed  the purchase  price
adjustment  and reaffirmed  its previous  opinion  regarding the fairness of the
transaction  and  delivered  its written  opinion that the  consideration  to be
received by AMCOL pursuant to the purchase  agreement is fair,  from a financial
point of view, to AMCOL.  After  discussion,  the Board affirmed its approval of
the purchase agreement.

     On November 22, 1999, AMCOL and BASF executed the purchase  agreement.  The
transaction  was publicly  announced  prior to the opening of the New York Stock
Exchange on November 23, 1999.

Opinion of Schroders

     On November 22, 1999,  Schroders  rendered its opinion to AMCOL's  Board of
Directors  that, as of the date of such opinion,  the cash  consideration  to be
paid to AMCOL by BASF for the SAP  business  was fair to AMCOL from a  financial
point of view.

     A copy of the Schroders  opinion,  which sets forth the  assumptions  made,
matters  considered  and  limitations  on the  scope  of  review  undertaken  by
Schroders, is attached as Annex B to this proxy statement. The Schroders opinion
is directed  only to the fairness,  from a financial  point of view, of the cash
consideration  to be paid to AMCOL by BASF for the SAP  business.  The Schroders
opinion was provided at the request and for the  information of AMCOL's Board of
Directors  in  evaluating  the  consideration  to be paid to AMCOL  and does not
constitute  a  recommendation  to  any  shareholder  to  vote  in  favor  of the
transactions contemplated by the purchase agreement. AMCOL's shareholders should
read the Schroders  opinion  carefully and in its entirety for information  with
respect to the procedures  followed,  assumptions made,  matters  considered and
limitations  on the review  undertaken  by Schroders in rendering  the Schroders
opinion.  Schroders  has  consented  to the  references  to  Schroders  and  the
Schroders  opinion  in  this  proxy  statement,  and  to the  attachment  of the
Schroders opinion to this proxy statement as an appendix.

In arriving at the Schroders opinion, Schroders:

          -    reviewed  certain  publicly   available  business  and  financial
               information relating to the SAP business;
          -    reviewed  certain  unaudited  historical  financial and operating
               information provided by AMCOL relating to the SAP business;
          -    reviewed  certain  other  information,  including  financial  and
               operating forecasts of the SAP business, provided by AMCOL;
          -    held discussions with senior management and AMCOL representatives
               regarding  the  business,  operations  and  prospects  of the SAP
               business;
          -    reviewed a draft of the  purchase  agreement  dated  November 19,
               1999;
          -    performed  various  financial   analyses,   as  Schroders  deemed
               appropriate,  using generally accepted analytical  methodologies,
               including:
                (a) the  application to the financial  results of the
               SAP business of the public trading  multiples of companies  which
               Schroders deemed comparable;
                (b) the application to the financial
               results of the SAP business of the multiples  reflected in recent
               acquisition transactions which Schroders deemed comparable;
                (c) a discounted  cash flow  analysis  of the SAP  business'
               financial forecasts;  and
                (d) a  leveraged  buyout  analysis  of  the  SAP business'
                financial forecasts;
          -    considered  the results of  solicitations  of interest from third
               parties regarding potential business  combinations  involving the
               SAP business; and
          -    performed   such   other   analyses,   studies,   inquiries   and
               investigations as Schroders deemed appropriate.

     In its  review and  analysis  and in  formulating  the  Schroders  opinion,
     Schroders:

          -    assumed  and relied upon the  accuracy  and  completeness  of all
               information  supplied or otherwise  made available to it by AMCOL
               or obtained by  Schroders  from other  sources,  and upon AMCOL's
               assurance that it was not aware of any  information or facts that
               would make the  information  provided to Schroders  incomplete or
               misleading;
          -    did not attempt to independently verify any of such information;
          -    did not  undertake  an  independent  appraisal  of the  assets or
               liabilities (contingent or otherwise) of AMCOL, nor was Schroders
               furnished with any such appraisals;
          -    with respect to the projected financial  information  referred to
               above,  was  advised by AMCOL,  and  Schroders  assumed,  without
               independent investigation, that they were reasonably prepared and
               reflected the best estimates and judgments of the expected future
               financial performance of the SAP business; and
          -    expressed  no opinion with  respect to such  projected  financial
               statements.

     The  Schroders  opinion was  necessarily  based upon  financial,  economic,
market and other  conditions as they existed and could be evaluated by Schroders
on the date  thereof.  Schroders  disclaimed  any  undertaking  or obligation to
advise any person of any change in any fact or matter  affecting  the  Schroders
opinion  which may come or be  brought to its  attention  after that date of the
Schroders opinion unless specifically requested by AMCOL to do so.

     The Schroders opinion does not constitute a recommendation as to any action
AMCOL's Board of Directors or any shareholder of AMCOL should take in connection
with the purchase agreement or any aspect thereof or alternatives thereto.

     In rendering the Schroders  opinion,  Schroders was not engaged as an agent
or fiduciary of AMCOL's  shareholders or of any other third party. The Schroders
opinion  related  solely to the  fairness,  from a financial  point of view,  of
consideration  to be paid to AMCOL in the  transaction.  Schroders  expressed no
opinion therein as to the structure, terms or effects of any other aspect of the
transactions contemplated by, or provisions of, the purchase agreement or any of
the agreements or instruments delivered pursuant thereto.

     The following is a summary of the material  financial analyses performed by
Schroders in arriving at the Schroders opinion and was provided by Schroders for
inclusion herein.

     Selected Comparable  Speciality Chemicals and Materials Companies Analysis.
Schroders  compared  selected  historical and projected  financial and operating
data of the SAP business to the corresponding data of a group of publicly traded
companies that Schroders deemed to be reasonably comparable to the SAP business.
In determining  the appropriate  comparable  companies,  Schroders  considered a
variety  of  factors,  including  market  capitalization,   business  focus  and
end-markets,  revenues,  EBITDA and EBIT.  These  companies,  or the  Comparable
Companies,  included AEP Industries;  Applied Extrusion  Technologies;  BASF AG;
Cabot Corp.; Calgon Carbon Corp.; Polymer Group Inc.; and Tredegar Industries.

     Schroders calculated multiples of enterprise value, which is defined in the
Schroders  opinion as market  value of equity plus total debt less cash and cash
equivalents,  to latest twelve months, or LTM, earnings before interest,  taxes,
depreciation,  amortization, or EBITDA, 1999 estimated EBITDA and 2000 estimated
EBITDA.  Schroders also calculated multiples of enterprise value to LTM earnings
before interest and taxes, or EBIT, 1999 estimated EBIT and 2000 estimated EBIT.
For each of these  multiples,  Schroders  determined a selected  multiple  range
based on the  mean,  adjusted  mean and range of  values.  The  results  of this
analysis are set forth in the tables below:


                                                                          Multiple to
                                                  LTM EBITDA             1999E EBITDA            2000E EBITDA
                                                                                            
Mean                                                 7.4x                    6.8x                    6.1x
Mean excluding high/low                              7.6x                    6.8x                    6.2x
Selected multiple range                          6.5x - 8.5x             6.0x - 8.0x              5.0x - 7.0x



                                                                          Multiple to
                                                   LTM EBIT               1999E EBIT              2000E EBIT
                                                                                            
Mean                                                12.5x                   10.8x                    9.4x
Mean excluding high/low                             11.3x                   10.6x                    9.3x
Selected multiple range                         10.5x - 12.5x            9.5x - 11.5x            8.0x - 10.0x



     As the  above  ranges  represent  trading  multiples  for  publicly  traded
companies,  Schroders then applied  control  premiums of 30%, 35% and 40% to the
selected  multiple ranges to determine the implied private market  valuation for
the SAP  business.  This  range of  control  premiums  was  based on a review of
premiums  paid  in  recent  public  merger  and  acquisition  transactions.  The
following  table  sets forth the  implied  enterprise  value  ranges for the SAP
business based upon the foregoing analysis:


               (% millions)                                       Implied Valuation Based on
                                             30% Control Premium     35% Control Premium      40% Control Premium
                                                                                       
Selected Enterprise Value Range                  $550 - $700             $570 - $725              $590 - $750

     Comparable  Transactions  Analysis.  Schroders considered the terms, to the
extent publicly available, of selected transactions reasonably comparable to the
sale  transaction,  or the  comparable  transactions,  and sought to compare the
consideration  to be paid to  AMCOL  with  the  consideration  involved  in such
transactions.  Schroders selected the comparable transactions based on a variety
of factors, including the date, size, profitability,  range of product offerings
and  types  of  end-use  markets  of  the  target   companies.   The  comparable
transactions and their pertinent dates were as follows:

          -    The  acquisition by Rhodia SA of Albright & Wilson plc (completed
               July 1999).
          -    The  acquisition by Suez Lyonnaise des Eaux of Imetal SA's Calgon
               Water Treatment (completed June 1999).
          -    The   acquisition   by   Eastman   Chemical   Company  of  Lawter
               International, Inc. (completed June 1999).
          -    The Tredegar Industries'  acquisition of Exxon Chemical Company's
               Films Business (completed May 1999).
          -    Laporte  plc's   acquisition   of  Inspec  Group  plc  (completed
               September 1998)
          -    BBA Group plc's acquisition of International  Paper Co.'s Veratec
               Nonwovens Business (completed in August 1998).
          -    Huntsman   Packaging   Corporation's   acquisition  of  Blessings
               Corporation (completed in May 1998).
          -    B.F. Goodrich  Company's  acquisition of Freedom Chemical Company
               (completed in March 1998).
          -    Polymer Group's  acquisition of Dominion Textile Inc.'s Nonwovens
               Business (completed in February 1998).
          -    Elementis  plc's  acquisition  of Rheox Inc.  from NL  Industries
               Inc.(completed in January 1998).
          -    Sentrachem   Ltd.'s   acquisition   of  Hampshire   Chemical  Co.
               (completed in September 1995) .
          -    Witco Corporation's acquisition
               of OSi Specialties Inc. (completed in October 1995).

     Schroders  calculated the multiple of enterprise value,  which in this case
is defined in the  Schroders  opinion as the purchase  price of equity plus debt
assumed  less  cash,  to the  target  company's  EBITDA  for the  twelve  months
preceding the transaction.  The mean enterprise value to LTM EBITDA multiple for
the comparable  transactions was 9.7x. The  consideration to be paid by BASF for
the SAP business implies transaction multiples of 10.6x LTM EBITDA and 9.9x 1999
estimated EBITDA. Schroders determined a selected multiple range of 9.0x to 11.0
x based upon the mean  multiple  and the range of  multiples  of the  comparable
transactions. The following table sets forth the implied enterprise value ranges
for the SAP business based upon the foregoing analysis:


                                            Multiple Range for Comparable            Implied Enterprise Value
                                                     Transactions                          ($ millions)
                                                                                      
LTM EBITDA                                           9.0x - 11.0x                        $555.3 - $678.7
1999E EBITDA                                         9.0x - 11.0x                        $595.8 - $728.2


     Discounted  Cash Flow Analysis.  Schroders  performed  discounted cash flow
analyses of the projected  free cash flows of the SAP business.  Free cash flows
are defined as after-tax  operating profit,  plus depreciation and amortization,
less capital  expenditures and changes in working  capital.  The discounted cash
flow analyses of the SAP business were determined by adding the present value of
the projected free cash flows of the SAP business,  and the present value of the
estimated terminal value of the SAP business.

     Schroders performed discounted cash flow analysis of the SAP business based
on projections  provided by AMCOL's management,  including  sensitivity cases in
which  adjustments  were  made to the  financial  forecast  and  terminal  value
calculation as follows:


                   Projections                                     Terminal Value / Discount Period
                                                  
Management projections as provided                   Free cash flows were calculated using the SAP business
                                                     projections from 2000 to 2008.  The terminal value of the SAP
                                                     business was determined by applying exit multiples ranging
                                                     from 6.0x to 8.0x to average EBITDA from 2004 through 2008
Alternative projections which incorporated a 10%     Free cash flows were calculated using the SAP business
reduction in variable margin, or a 7.5% increase     projections from 2000 to 2005.  The terminal value of the SAP
in acrylic acid pricing, the key raw material for    business was determined by applying exit multiples ranging
the SAP business                                     from 6.0x to 8.0x to 2005 EBITDA

     Estimated cash flows and terminal  values were  discounted at rates ranging
from 9.0% to 11.0%. These discount rates were based on the weighted average cost
of capital for AMCOL and the comparable companies.  Based on such terminal value
multiples and discount rates, the implied

enterprise values for the SAP business are presented below:


                                                                           Implied Enterprise Value Range
                          Description                                               ($ millions)
                                                                                  
Management case projections through 2008                                          $534.6 - $728.5
Alternative case projections through 2008                                         $418.7 - $578.0
Management case projections through 2005                                          $502.3 - $677.8
Alternative case projections through 2005                                         $391.1 - $534.6

     Leveraged Buyout Analysis.  Schroders performed a leveraged buyout analysis
on the SAP  business to  determine  what a potential  financial  investor  could
afford to pay for the SAP business.  This analysis was based on assumed interest
rates of 8.75% for bank debt,  12.0% for senior  subordinated  debt and  current
minimum  acceptable  debt  coverage  ratios.  This  analysis also assumed that a
financial  investor would require a minimum internal rate of return,  or IRR, of
20% to 25%  over the  term of its  investment.  Based  upon  these  assumptions,
Schroders  determined that a financial  investor would be able to pay up to $483
million  (assuming a 25% IRR) and $513 million  (assuming a 20% IRR) for the SAP
business.

     The  preparation  of a  fairness  opinion  is a complex  process  involving
various  determinations as to the most appropriate and relevant quantitative and
qualitative  methods of financial  analysis and the application of those methods
to the particular  circumstances and,  therefore,  is not readily susceptible to
partial analysis or summary description.  In arriving at its opinion,  Schroders
considered  the results of all its analyses as a whole and did not attribute any
particular  weight to any analysis or factor  considered  by it.  Subject to the
matters set forth in the Schroders  opinion,  the judgments made by Schroders as
to its analyses and the factors  considered by it caused  Schroders to be of the
opinion,  as of the date of the Schroders opinion,  that the consideration to be
paid by BASF was fair,  from a  financial  point of view,  to AMCOL.  Schroders'
analyses  must be  considered  as a whole and  considering  any  portion of such
analyses and of the factors  considered,  without  considering  all analyses and
factors,  could create a misleading or incomplete view of the process underlying
the Schroders opinion.

     Any  estimates   contained  in  Schroders'  analyses  are  not  necessarily
indicative of actual values or predictive of future results or values, which may
be  significantly  more or less favorable than those contained in such analyses.
Estimated  values do not  purport to be  appraisals  or to reflect the prices at
which businesses or companies may be sold in the future,  and such estimates are
inherently subject to uncertainty.

     Schroders is an  internationally  recognized  investment  banking firm with
experience  in the valuation of  businesses  and their  securities in connection
with  mergers;  acquisitions;  sales and  distributions  of listed and  unlisted
securities; private placements; and valuations for corporate and other purposes.

     The extensive experience of Schroders' chemical investment banking group in
providing  corporate  finance and advisory services to companies in the chemical
industry was a significant  factor in AMCOL's decision to select Schroders to be
its financial advisor for the transaction.

     Schroders,  in the past,  has  performed  financial  advisory  services for
AMCOL.  Schroders may provide  investment banking or financial advisory services
for AMCOL in the future.

     Pursuant  to a letter  agreement  dated  July 26,  1999,  AMCOL has paid to
Schroders  a $150,000  retainer  fee,  and a fee of $850,000  for the  Schroders
opinion  furnished to AMCOL and has agreed to pay,  contingent upon consummation
of the  transaction,  a  cash  success  fee  equal  to  0.5%  of  the  aggregate
consideration to be received by AMCOL in the  transaction.  The retainer fee and
the fairness opinion fee will be credited against this success fee. In addition,
AMCOL has agreed to indemnify Schroders against certain expenses and liabilities
in connection with its engagement.  The fairness opinion fee was not conditioned
upon  the   conclusion   reached  by   Schroders  as  to  the  fairness  of  the
consideration, nor upon the ultimate consummation of the transaction.

Recommendation of the Board

     AMCOL's Board of Directors has unanimously  approved the purchase agreement
and the sale transaction,  and believes that the purchase agreement and the sale
transaction  are  fair  to,  and  in  the  best  interests  of,  AMCOL  and  its
shareholders. The Board of Directors recommends that you vote "FOR" the approval
of the sale transaction.

Reasons for the Sale Transaction

     In reaching its decision to recommend  and approve the purchase  agreement,
AMCOL's Board of Directors  consulted  with its advisors and considered a number
of factors, including the following:

     -    Information regarding the financial performance,  business operations,
          capital  requirements  and future  prospects of the SAP business.  The
          Board reviewed the likelihood of realizing a long-term  value equal to
          or greater than the value  offered by BASF if the SAP business was not
          sold. The Board determined that the ability to obtain such value would
          depend  on  numerous  factors,  many  of  which  were  speculative  or
          uncertain.  These  factors  included  the  investment  of  significant
          amounts of capital and the continued  availability  of acrylic acid at
          reasonable  prices.  In  light  of  these  uncertainties,   the  Board
          determined  that the  interests  of AMCOL's  shareholders  were better
          served  by the sale of the SAP  business  to BASF . - The terms of the
          purchase agreement, including the price, the proposed structure of the
          sale  transaction  and  BASF's  financial  strength  and the fact that
          financing is not a condition to the sale transaction.

     -    The process engaged by AMCOL's management and Schroders which included
          discussions with potential acquirors of the SAP business, and the view
          of  AMCOL's   Board  of   Directors,   based  in  part  on  Schroders'
          presentation,  that  it was  unlikely  a  superior  offer  for the SAP
          business would arise and be consummated.

     -    Schroders'  presentation  and written  opinion that, as of the date of
          the  opinion  and based upon and  subject to  certain  matters  stated
          therein,  the cash  consideration  to be received by AMCOL pursuant to
          the sale  transaction is fair to AMCOL from a financial point of view.
          The full text of  Schroders'  opinion is  attached  hereto as Annex B.
          Shareholders are urged to read the opinion in its entirety.
     -    Current industry, economic and market conditions in the superabsorbent
          polymers industry, including (a) the fact that AMCOL is one of several
          superabsorbent  polymers producers which does not also produce acrylic
          acid,   the  primary  raw   material   used  in  the   production   of
          superabsorbent  polymers,  (b) the increasing vertical  integration of
          the  superabsorbent  polymers  industry as competing  manufacturers of
          superabsorbent polymers have become suppliers of acrylic acid, and (c)
          the  decrease  in  available  sources  of  acrylic  acid which are not
          competitors of the SAP business.
     -    AMCOL  management's  belief that,  although  acrylic  acid  production
          presently  exceeds  demand,  the SAP business may become  increasingly
          dependent upon its  competitors  for supplies of acrylic acid and that
          in periods  of low  supply,  such  dependence  may have a  significant
          negative impact on the profitability of the SAP business. Any decrease
          in the  profitability  of the SAP  business  may  decrease the value a
          potential purchaser would assign to the SAP business.
     -    AMCOL's  review  of  alternatives  to a  sale  of  the  SAP  business,
          including (a) acquiring an acrylic acid  supplier,  (b) developing the
          internal  capacity to produce  acrylic  acid,  or (c) entering  into a
          strategic  relationship  with an acrylic acid supplier,  and the costs
          and capital expenditures  associated with each alternative.  The Board
          determined that significant capital  expenditures would be required to
          acquire an acrylic  acid  supplier or develop the  capacity to produce
          acrylic  acid.  In addition,  the Board  concluded  that AMCOL did not
          currently  possess the  technology  or resources  necessary to produce
          acrylic acid.
     -    AMCOL's  ability  to  adopt  a  plan  of  partial  liquidation  and to
          distribute a  substantial  portion of the net  proceeds  from the sale
          transaction to AMCOL's shareholders.
     -    That  the  purchase  agreement  permits  AMCOL  to  furnish  nonpublic
          information  to, and to  participate in  negotiations  with, any third
          party that has submitted an unsolicited  acquisition  proposal, if the
          Board determines in good faith that such  acquisition  proposal is, or
          may  reasonably be expected to lead, to a superior  proposal,  and the
          purchase  agreement  permits  AMCOL's Board of Directors to change its
          recommendation  with respect to the sale  transaction and to terminate
          the purchase agreement in certain circumstances in the exercise of its
          fiduciary duties.
     -    The absence of any lock-up arrangements  requiring any shareholders of
          AMCOL to vote in favor of the sale transaction.
     -    The  termination  provisions  of the purchase  agreement,  which under
          certain circumstances could obligate AMCOL to pay a termination fee of
          $20  million to BASF and to  reimburse  BASF for its  actual  expenses
          incurred in connection with the transaction, up to $3 million, and the
          Board's  belief  that such fees and expense  reimbursement  provisions
          would not deter a higher offer for the SAP business.

The  Board  also  considered  the  following  facts,   risks  and  uncertainties
associated with the sale transaction:

     -    The asset/stock  purchase  structure of the sale transaction is not as
          tax efficient to AMCOL as the  spin-off/merger  structure.  AMCOL will
          recognize  gain  on the  sale  of  the  SAP  business  and  the  AMCOL
          shareholders  will  recognize  a gain or loss on any  distribution  by
          AMCOL of the proceeds from the sale transaction.  The Board recognized
          that BASF was not  willing to agree to the  spin-off/merger  structure
          and  increased  the  purchase   price  to  mitigate  the  adverse  tax
          consequences of the asset/stock purchase structure.
     -    Under the purchase  agreement,  AMCOL has agreed to indemnify BASF for
          the breach of its  representations  and  warranties  contained  in the
          purchase  agreement  and other  matters.  If the  proceeds of the sale
          transaction  are distributed to AMCOL's  shareholders,  AMCOL would be
          required  to fund the  payment of any  indemnification  claims by BASF
          under the purchase  agreement or  otherwise  out of its then  existing
          working capital and cash flows from its continuing businesses.

     The foregoing addresses the material  information and factors considered by
AMCOL's Board of Directors in its consideration of the sale transaction. In view
of the  variety of factors  and the amount of  information  considered,  AMCOL's
Board of Directors did not find it practicable to provide  specific  assessments
of,  quantify or  otherwise  assign  relative  weights to the  specific  factors
considered in reaching its  determination.  The  determination to recommend that
AMCOL's shareholders approve the purchase agreement was made after consideration
of all of the factors taken as a whole. In addition,  individual  members of the
Board may have given different weights to different factors.

Use of Proceeds

     AMCOL expects to receive  approximately  $656.5  million in gross  proceeds
from the sale transaction.  See "The Purchase  Agreement - Purchase Price." From
these gross  proceeds,  AMCOL intends to repay certain  indebtedness  of the SAP
business (totaling approximately $44.3 million as of December 31, 1999) and will
pay various transaction related costs, including estimated legal, accounting and
advisory  fees of $7.5  million,  estimated  employee  bonuses of $3.6  million,
estimated filing, printing and other costs of $1.3 million,  estimated penalties
for the prepayment of debt of $1.3 million, and estimated corporate income taxes
of $208.4 million.

     In connection with the sale transaction, AMCOL currently intends to adopt a
plan of partial liquidation  pursuant to which AMCOL will distribute pro rata to
its  shareholders  a  significant  portion  of the net  proceeds  from  the sale
transaction after payment of the expenses  described above. We cannot assure you
that any plan of partial  liquidation  will be adopted or that any  distribution
will be made. The Board of Directors  will consider the facts and  circumstances
existing  after the completion of the sale  transaction  to determine  whether a
distribution  in  partial  liquidation  is in  the  best  interests  of  AMCOL's
shareholders  at that time and the timing  and amount of any such  distribution.
Any plan of partial  liquidation  must be  approved  by the Board,  but does not
require the approval of AMCOL's  shareholders.  Shareholders are not being asked
to vote on or approve any plan of partial liquidation.

     AMCOL currently expects to distribute  between $14.00 and $14.50 per share.
See "Selected Consolidated Historical and Pro Forma Financial Data." This amount
is based upon the selected  consolidated  pro forma financial data, the expected
gross proceeds of the sale transaction, and estimated transaction related costs.
The actual amount of any  distribution  is expected to be  determined  after the
closing of the sale transaction.  Accordingly, shareholders are advised that the
actual amount of any distribution to shareholders may be substantially different
from the amount indicated above.

     If the sale transaction is consummated,  AMCOL's  shareholders  will retain
their  equity  interest in AMCOL.  The sale  transaction  will not result in any
changes in the rights of AMCOL's shareholders.

Accounting Treatment

     Upon consummation of the sale transaction,  the entities comprising the SAP
business will be treated as a discontinued operation of AMCOL. All prior periods
will be reclassified  to show the operations of the entities  comprising the SAP
business  separately  from the continuing  operations of AMCOL.  The gain on the
sale transaction will be calculated as the excess of the consideration  received
by AMCOL plus liabilities  assumed by BASF over the net book value of the assets
sold, net of transaction  costs and  applicable  income taxes.  The gain will be
recorded  as  a  separate  component  of  discontinued   operations  in  AMCOL's
consolidated financial statements.

Certain Federal Income Tax Consequences

     The following summary  describes  material United States federal income tax
consequences  to AMCOL and its  shareholders  from the sale  transaction and the
proposed distribution to AMCOL's shareholders, which would result if the plan of
partial   liquidation  were  adopted.  It  is  based  upon  the  Code,  Treasury
Regulations promulgated and proposed thereunder,  administrative  pronouncements
and judicial decisions, all of which are subject to change (either prospectively
or  retroactively),  which changes could materially  affect the tax consequences
described herein.

     No  rulings  have  been or will be  requested  from  the  Internal  Revenue
Service,  or the IRS,  as to the matters  discussed  herein and, as to some such
matters,  such a ruling might not be obtainable even if requested.  Accordingly,
no assurance can be given that the IRS will not challenge the federal income tax
treatment of certain matters discussed herein, which challenge, if any, might be
upheld by the courts.

     This summary is necessarily  general in nature, and does not address all of
the tax consequences that may be relevant to particular shareholders in light of
the personal circumstances, or to certain types of shareholders (such as certain
financial  institutions,   dealers  in  securities  or  commodities,   insurance
companies, tax-exempt organizations, or persons who hold shares as a position in
a straddle). In particular,  the discussion applies only to a shareholder who is
a United States  resident for federal income tax purposes.  This summary further
assumes that all shares of stock are held as "capital  assets," and thus may not
be applicable as to shares acquired as compensation  (including  shares acquired
upon the  exercise of  options).  This  summary also does not address the state,
local or foreign tax consequences to a shareholder of the proposed transaction.

     Accordingly,  each  shareholder  is urged to consult with and to obtain the
advice of his or her own tax advisor as to the tax  consequences of the proposed
transaction as to such shareholder.

     Sale Transaction. AMCOL will recognize gain on the sale of the SAP business
in the sale transaction,  but no gain will be recognized by AMCOL's shareholders
on the sale  transaction.  AMCOL and BASF will make a joint  election under Code
Section 338(h)(10).  Under this election,  AMCOL will be deemed to have sold all
of the assets of the SAP business (rather than the shares of Chemdal US) to BASF
for the purchase price.  AMCOL's gain or loss will be determined  based upon the
amount  of  the  sales  price  allocated  to  each  asset  and  AMCOL's  or  its
subsidiary's  tax basis for each asset.  The sale transaction may also result in
foreign,  state or local income,  franchise or sales and use tax  liabilities in
some or all of the foreign countries, states or local tax jurisdictions in which
AMCOL or a subsidiary files returns.

     Shareholder  Distribution.  The proposed  distribution by AMCOL of proceeds
from the sale  transaction will be treated by AMCOL as a distribution in partial
liquidation of AMCOL under Code Section  302(b)(4).  No shares will be exchanged
in the distribution,  although non-corporate shareholders will be deemed to have
transferred  a portion of their common stock to AMCOL in exchange for the amount
received in the distribution.  For federal income tax purposes,  a non-corporate
shareholder  will  recognize  gain  or  loss on  such  redemption  equal  to the
difference between the amount of cash received, and such shareholder's tax basis
in the common stock considered to be redeemed.  The number of shares  considered
to be redeemed shall be determined by  multiplying  the number of shares held by
such non-corporate shareholder by the fraction that the total amount distributed
bears  to the  total  value  of  the  common  shares  immediately  prior  to the
distribution.  Any gain or loss would be  considered  long term  capital gain or
loss if the stock deemed to have been  exchanged has been held for more than one
year and short-term gain or loss if the stock was owned for less than one year.

     If the  redemption  does  not  qualify  as one  which  is made  in  partial
liquidation  of  AMCOL,  then  the  entire  amount  of the  cash  received  by a
non-corporate  shareholder  will be  treated  as a  dividend  in the year of the
redemption  to the extent that AMCOL has  current or  accumulated  earnings  and
profits.  Such dividend will be includable in the shareholder's  gross income as
ordinary income.  If the amount of the distribution  exceeds AMCOL's current and
accumulated  earnings  and  profits,  such  excess  will  first be  treated as a
non-taxable  return  of  capital  to  the  shareholder  to  the  extent  of  the
non-corporate  shareholder's  basis in AMCOL  shares,  with  any  balance  being
treated as capital gain from the sale or exchange of such shares.


     Because "partial  liquidation"  treatment under Code Section 302(b)(4) only
obtains  with  respect  to  non-corporate  shareholders,   the  deemed  exchange
treatment described above will not apply to corporate  shareholders.  A domestic
corporate  shareholder  will be  treated as having  received  a dividend  to the
extent of the current and accumulated earnings and profits of AMCOL. However, to
the extent the distribution  received by the corporate shareholder is treated as
a dividend,  such dividend  income will then  generally be in part offset by the
corporate shareholder by a dividends-received deduction; subject, however, among
other   limitations,   to  its  having  satisfied  the  minimum  holding  period
requirements,  and possible  reduction  in the amount of such  dividend-received
deduction in and to the extent that the common  stock owned by it is  considered
to be "debt financed."

     In addition,  and irrespective of a corporate  shareholder's holding period
for its common stock, a dividend  received in partial  liquidation of AMCOL will
be  characterized as an  "extraordinary  dividend" under Code Section 1059, with
the  result  that  the  portion  of  such  dividend  which   qualifies  for  the
dividend-received deduction will reduce the corporate shareholder's tax basis in
its common stock (but not below zero). If the non-taxed  portion of the dividend
exceeds the corporate  shareholder's  tax basis in the common stock, such excess
will be  recognized as gain from the sale or exchange of the common stock in the
year the extraordinary  dividend is received.  If the amount of the distribution
exceeds AMCOL's current and accumulated  earnings and profits,  such excess will
first be treated as a non-taxable  return of capital to the  shareholder  to the
extent  of the  shareholder's  basis in AMCOL  shares,  with any  balance  being
treated as capital gain from the sale or exchange of such shares.

Interests of Certain Persons

     The Compensation Committee of the Board of Directors has granted bonuses to
certain  of  AMCOL's  employees  in  recognition  of their  contribution  to the
development and success of the SAP business.  The grant of these bonuses creates
a different and additional  interest in the sale transaction for these employees
that could influence their support of the sale transaction. As a result of these
bonuses,  these employees  could be more likely to support the sale  transaction
than if they were not granted the bonuses.  The directors or executive  officers
of AMCOL  listed  below were  granted  bonuses in the  following  amounts:  John
Hughes, Chairman, Chief Executive Officer and Director, $_________;  Lawrence E.
Washow,  President,  Chief Operating Officer and Director,  $_________;  Paul G.
Shelton,   Senior   Vice-President,   Chief  Financial   Officer  and  Director,
$_________;  and Gary L.  Castagna,  Vice  President  of AMCOL and  President of
Chemdal International Corporation,  $_________. In addition, seven key employees
of the SAP business were granted bonuses in the aggregate amount of $__________.
In order to be eligible to receive these bonuses, the relevant employees may not
terminate their employment with AMCOL prior to closing of the sale  transaction.
In  addition,  these  bonuses  are  contingent  upon  the  closing  of the  sale
transaction.

     In addition to approving the sale  transaction,  AMCOL's  shareholders  are
being asked to adopt  amendments  to AMCOL's  1993 Stock Plan and  AMCOL's  1998
Long-Term  Incentive Plan which provide for the  acceleration  of vesting of all
options held by employees who will become employees of BASF. If these amendments
are approved,  as of April __, 2000,  options to  purchase___________  shares of
AMCOL's common stock held by Gary Castagna will become  immediately  vested. The
exercise  prices  of the  relevant  options  held  by Mr.  Castagna  range  from
$__________  to  $__________.  Based on the closing sale price of AMCOL's common
stock on April  __,  2000,  as  reported  by the New York  Stock  Exchange,  the
aggregate  value  of the  benefit  to be  received  by  Mr.  Castagna  upon  the
acceleration  of the  relevant  options is  $___________.  The  vesting of these
options is contingent  upon the receipt of shareholder  approval of the purchase
agreement,  but is not  contingent  upon  closing  the sale  transaction  or the
termination of Mr. Castagna's employment with AMCOL. See "Approval of Amendments
to AMCOL's 1993 Stock Plan and 1998 Long-Term Incentive Plan - General."

     If the Board of Directors  approves the  proposed  distribution  in partial
liquidation, the Compensation Committee will be required pursuant to the Code to
adjust the number of shares subject to incentive stock options outstanding under
AMCOL's 1983  Incentive  Stock Option Plan,  1993 Stock Plan and 1998  Long-Term
Incentive  Plan, and their exercise  price.  These  adjustments  are intended to
preserve the ratio of the exercise  price of the option to the fair market value
of AMCOL's common stock.  In accordance  with the  requirements of the Code, the
number of shares  subject to incentive  stock  options would be increased to the
product of (A) the ratio of the pre-distribution  price of AMCOL common stock to
the post-distribution  price of AMCOL common stock, and (B) the number of shares
subject to incentive stock options,  rounded down to the next whole number.  The
exercise  price  would  be  reduced  to the  product  of (A)  the  ratio  of the
post-distribution  price of AMCOL common stock to the pre-distribution  price of
AMCOL common stock, and (B) the original option price,  rounded down to the next
whole cent. The Compensation  Committee  intends to make similar  adjustments to
non-qualified  stock options outstanding under those plans or under AMCOL's 1987
Non-Qualified Stock Option Plan. As an example, if the pre-distribution price of
AMCOL common stock were $_________ per share and the post-distribution  price of
AMCOL common stock were  $_________ per share and there were  ___________  stock
options  outstanding  on the  distribution  date,  then the  number  of  options
outstanding   would  be   increased   to  the  product  of   _____________   and
______________,  or _____________  shares. If the exercise price were $________,
the exercise price would be reduced to the product of ________ and ________,  or
$________.  Once these  adjustments  are made, the shares subject to outstanding
options will constitute a significant  portion of AMCOL's  outstanding shares of
common stock.  Assuming the stock prices set forth above  immediately  after the
distribution and the required adjustment,  shares subject to outstanding options
would constitute  _____________ out of ___________  outstanding  shares of AMCOL
common stock, or _____%.

No Appraisal Rights

     Under  Delaware  law,  AMCOL's  shareholders  are not entitled to appraisal
rights with respect to the proposed sale of the SAP business or any  transaction
contemplated by the purchase agreement.

                  THE PURCHASE AGREEMENT

     The  following  discussion  of the  material  terms and  conditions  of the
purchase  agreement is qualified in its entirety by reference to the  provisions
of the purchase agreement,  which is attached to this proxy statement as Annex A
and incorporated herein by reference.

Purchased Shares and Assets

     Under the terms of the purchase agreement,  AMCOL and its subsidiaries,  or
the  sellers,  will  sell to BASF  or one or more of its  affiliates  all of the
issued and  outstanding  capital  stock of Chemdal US and Chemdal  Asia,  or the
shares,  and, except for some excluded  assets,  all assets of the sellers which
are  primarily  related to the SAP business,  or the SAP assets.  The SAP assets
include the following:

         -        owned real property;
         -        furniture, fixtures, equipment and other tangible personal
                  property;
         -        inventories;
         -        receivables;
         -        books and records;
         -        intellectual property and other intangible personal property;
         -        customer lists and sales-related materials;
         -        contracts, licenses, leases, sales and purchase orders and
                  other similar commitments; and
         -        all permits and licenses.

         Specifically excluded from the SAP assets are the following:

         -        all cash and cash equivalents;
         -        except as otherwise  provided in the purchase  agreement,  all
                  assets and properties not primarily related to or used
                  in the conduct of the SAP business (including the assets used
                  primarily in the Poly-Pore business);
         -        the name "AMCOL" and all related trademarks, logos, and domain
                  names;
         -        all intellectual property rights which do not primarily relate
                  to the SAP business;
         -        certain tax refunds and credits for periods prior to the
                  closing; and
         -        rebates and refunds due to AMCOL and the other sellers
                  pursuant to some supply agreements.

Assumed Liabilities

     BASF  or  one  of  its  affiliates  will  assume  all  debts,  obligations,
contracts,  commitments,  agreements and  liabilities  of the sellers  primarily
related  to  the  conduct  of  the  SAP   business.   The  sellers  will  retain
responsibility   for  the   payment  of  any  debts,   obligations,   contracts,
commitments,  agreements or liabilities of the sellers not primarily  related to
the conduct of the SAP business, including the following:

         -        taxes relating to periods prior to the closing;
         -        liabilities relating to assets excluded from the SAP assets;
         -        liabilities arising from the employment or termination of any
                  employees prior to the closing;
         -        any indebtedness for borrowed money other than any assumed
                  intercompany indebtedness;
         -        liabilities  relating to the conduct of the SAP  business
                  prior to the closing to the extent the  existence  of such
                  liability  constitutes  a breach by the sellers of any of
                  their  representations  and  warranties  under the purchase
                  agreement;
         -        any liabilities  relating to the conduct of the businesses
                  conducted by AMCOL or its subsidiaries other than the SAP
                  business occurring or existing before or after the closing;
                  and
         -        subject to certain  exceptions,  any losses or liabilities
                  pursuant to any environmental law arising from or related
                  to any action,  event,  circumstance or condition  related to
                  the SAP business and occurring or existing on or before
                  the closing.

Purchase Price

     The  purchase  price for the shares  and the SAP assets is $628  million in
cash,  less the amount of any outstanding  intercompany  indebtedness of the SAP
business  as of the  closing,  subject  to  certain  additional  adjustments  as
described below. In addition,  BASF will pay $28.5 million to Chemdal Limited as
consideration  for  entering  into the Acrylic Acid Supply  Agreement  described
below.

     The purchase price is subject to adjustment  based on the aggregate  amount
of the working capital of the SAP business as of the closing,  consisting of the
amount of the accrued  current trade accounts  receivables  (net of allowances),
Chemdal Asia value added tax receivables and inventories,  less accounts payable
and accrued current liabilities of the SAP business. Within thirty business days
following  the  closing,  AMCOL is required  to deliver to BASF a  statement  of
working  capital of the SAP  business as of the  closing.  If the  statement  of
working  capital is acceptable to BASF, the amount of the purchase price will be
adjusted by the amount of the difference  between the amount of working  capital
of the SAP business as of the closing and $34,175,000, and a cash payment in the
amount of such  difference will be made by AMCOL or BASF, as the case may be, to
the other party within ten business days  following the final  determination  of
the  statement of working  capital.  If BASF objects to the statement of working
capital,  the parties  will  attempt to resolve the dispute in good faith and if
they are unable to resolve  the  dispute,  the matter  will be  submitted  to an
independent accounting firm for binding resolution.

The Closing

     Subject to the terms of the  purchase  agreement,  the  closing of the sale
transaction  will take place on the tenth  business  day  following  the date on
which all of the  conditions  to each  party's  obligations  under the  purchase
agreement  have been  satisfied or waived,  or on such other date as the parties
may mutually  agree, or the closing date. It is currently  anticipated  that the
closing will occur in the second quarter of 2000.

Representations and Warranties

     The purchase agreement contains various  representations  and warranties of
AMCOL  and  the   other   sellers   regarding   the  SAP   business,   including
representations and warranties regarding the following:

         -        the organization, authority and qualification of the sellers,
                  Chemdal US and Chemdal Asia;
         -        capitalization and ownership of Chemdal US and Chemdal Asia;
         -        no conflicts;
         -        consents and approvals;
         -        accuracy of financial statements;
         -        absence of undisclosed liabilities;
         -        receivables and inventories;
         -        the absence of certain changes, events and conditions;
         -        material litigation;
         -        compliance with laws;
         -        environmental matters;
         -        material contracts;
         -        intellectual property;
         -        real property and tangible personal property;
         -        employee benefit matters;
         -        labor matters and key employees;
         -        taxes; and
         -        insurance.

     The purchase  agreement  also contains  representations  and  warranties of
BASF,  including  representations  and  warranties  as to the  organization  and
authority of BASF; no conflicts;  consents and approvals;  material  litigation;
and financial statements.

     For  a  description  of  the  survivability  of  the   representations  and
warranties and related  indemnification,  see "Survival of  Representations  and
Warranties; Indemnification."

Conduct of Business

     During the period from the date of the  purchase  agreement  to the closing
date,  AMCOL will, and will cause Chemdal US, Chemdal Asia and the other sellers
to,  conduct  its  business  in the  ordinary  course and  consistent  with past
practice, including to

     -    continue its advertising and promotional  activities,  and pricing and
          purchasing policies, in accordance with past practice;

     -    not intentionally shorten or lengthen the customary payment cycles for
          any of its payables or receivables;
     -    use all  reasonable  efforts  consistent  with  past  practice  to (A)
          preserve   intact  its   business   organizations   and  the  business
          organization  of the SAP  business,  (B)  keep  available  to BASF the
          services of the employees of the SAP  business,  (C) continue in force
          without material modification all existing insurance policies, and (D)
          preserve the current relationships with its customers and suppliers;
     -    exercise, subject to BASF's approval, any renewal rights under leases;
          and
     -    not engage in any practice,  take any action,  fail to take any action
          or enter into any transaction which could cause any  representation or
          warranty  of the  sellers in the  purchase  agreement  to be untrue or
          result in a breach of any covenant made by the sellers in the purchase
          agreement.

     AMCOL also agreed that, prior to closing,  neither Chemdal US, Chemdal Asia
nor the sellers with respect to the SAP business will

     -    incur any indebtedness;
     -    redeem any of its capital stock or declare,  make or pay any dividends
          or  distributions  (whether in cash,  securities or other property) to
          the holders of capital stock of Chemdal US or Chemdal Asia;
     -    make any material  changes in the  customary  methods of operations of
          Chemdal US, Chemdal Asia or the sellers;
     -    merge with, enter into a consolidation  with or acquire an interest in
          any person or acquire a substantial  portion of the assets or business
          of any  person  or any  division  or  line  of  business  thereof,  or
          otherwise  acquire  any  material  assets  other than in the  ordinary
          course of business consistent with past practice;
     -    except as directly  related to the  construction  of the Chemdal  Asia
          facility in Thailand,  issue any sales  orders or  otherwise  agree to
          make any purchases  involving exchanges in value in excess of $500,000
          individually;
     -    sell, transfer,  lease, sublease,  license or otherwise dispose of any
          properties  or assets,  real,  personal or mixed  (including,  without
          limitation,  leasehold interests and intangible assets), other than in
          the ordinary course of business consistent with past practice;
     -    grant any increase, or announce any increase, in the wages,  salaries,
          compensation,  bonuses, incentives,  pension or other benefits payable
          by Chemdal US,  Chemdal Asia or any seller to any of the  employees of
          the SAP  business or  establish or increase or promise to increase any
          benefits  under any employee  benefit  plan,  in either case except as
          required by law, or any collective bargaining agreement,  or involving
          ordinary   increases   consistent  with  the  past  practices,   or  a
          contractual obligation existing on the date of the purchase agreement;
          or
     -    agree to employ any new hire on terms  that would pay any such  person
          an  annual  base  salary  in excess  of  $50,000  or annual  aggregate
          compensation in excess of $75,000.

         No Solicitation

     AMCOL has agreed that  between the date of the purchase  agreement  and the
earlier of the closing or the  termination  of the purchase  agreement,  none of
AMCOL, Chemdal US, Chemdal Asia, the other sellers, nor any of their affiliates,
officers, directors, representatives or agents will solicit, initiate, consider,
encourage  or accept any  acquisition  proposals  from any person,  or except as
required by the fiduciary  duties of AMCOL's Board of Directors,  participate in
any discussions, conversations,  negotiations or other communications regarding,
or furnish to any other  person any  information  with  respect to, or otherwise
cooperate in any way,  assist or participate  in, or facilitate or encourage any
effort or attempt by any other person to seek or to  consummate  an  acquisition
proposal.  Notwithstanding  the above, prior to the consummation of the purchase
agreement, AMCOL's Board of Directors is permitted to furnish information to, or
enter into  discussions or negotiations  with, any person that after the date of
the purchase agreement makes an unsolicited  acquisition proposal,  if, and only
to the extent that,  (A) AMCOL's  Board of Directors  determines  in good faith,
after  consultation  with and based upon the advice of counsel  and a  financial
advisor of a nationally  recognized  reputation,  that such acquisition proposal
is, or may  reasonably  be expected to lead to, a superior  proposal,  (B) AMCOL
provides  written  notice  to BASF  that it is  furnishing  information  to,  or
entering into  discussions  or  negotiations  with,  such person,  indicating in
reasonable detail the terms and conditions of such acquisition proposal,  offer,
inquiry  or  other  contact,  and  (C)  information  to be  furnished  has  been
previously  delivered to BASF, or to comply with Rule 14e-2 under the Securities
Exchange Act of 1934, as amended, with regard to an acquisition proposal.

     AMCOL has agreed to notify BASF promptly if any such  acquisition  proposal
or offer,  or any inquiry or other  contact  with any person with  respect to an
acquisition  proposal  is made.  AMCOL  agrees not to, and to cause  Chemdal US,
Chemdal Asia and each other seller not to, without BASF's prior written consent,
release any person  from,  or waive any  provision  of, any  confidentiality  or
standstill agreement,  except in the event AMCOL's Board of Directors determines
in good faith,  after consultation with and based upon the advice of counsel and
a financial advisor of a nationally recognized reputation,  that such release or
waiver is  reasonably  expected to lead to a superior  proposal.  AMCOL has also
terminated  all  existing  discussions,  conversations,  negotiations  and other
communications  with any  persons  conducted  before  the  date of the  purchase
agreement with respect to any acquisition proposal.

     An  acquisition  proposal  means  any  proposal  or offer  relating  to the
     following:

     -    any acquisition or purchase of all or any portion of the capital stock
          of  Chemdal  US,  Chemdal  Asia  or  any  other  seller  or  all  or a
          substantial  portion of the assets of Chemdal US,  Chemdal  Asia,  any
          other seller or the SAP business;
     -    any business  combination  with Chemdal US,  Chemdal Asia or any other
          seller;
     -    any other extraordinary  business  transaction  involving or otherwise
          relating to Chemdal US, Chemdal Asia, any other
          seller or the SAP business; or
     -    any acquisition or purchase of, or tender offer or exchange offer for,
          more  than 20% of the  equity  securities  of  AMCOL,  or any  merger,
          consolidation   or  business   combination   with   AMCOL,   or  other
          extraordinary  business transaction involving or otherwise relating to
          AMCOL that would result in any other person owning in excess of 20% of
          the outstanding equity securities of AMCOL.

     A superior  proposal means any acquisition  proposal on terms which AMCOL's
Board of Directors determines, in its good faith judgment (after having received
the advice of a financial adviser of nationally  recognized  reputation),  to be
more favorable to AMCOL and its  shareholders  than the sale transaction and for
which financing, to the extent required, is then committed or, in the good faith
judgment of AMCOL's  Board of  Directors,  based upon the written  advice of its
financial  adviser,  is reasonably  capable of being obtained by the third party
bidder.

Non-Competition

     For a period of three years after the closing in the European Community and
a period of ten years  after the  closing in every  other  location  or, in each
case,  for such shorter  period as may be required by applicable  law, AMCOL and
its affiliates will not engage, directly or indirectly, in any business anywhere
in the world that  researches,  develops,  manufactures,  markets,  distributes,
sells,  produces  or  supplies  products  or  services  of the kind  researched,
developed,  manufactured,  marketed,  distributed, sold, produced or supplied by
the SAP business,  Chemdal US or Chemdal Asia, in each case, for traditional SAP
market segments as of the closing date, or without BASF's prior written consent,
own, directly or indirectly,  an interest in, manage,  operate,  join,  control,
lend money or render  financial or other  assistance to or  participate in or be
connected with, as an officer,  employee,  partner,  stockholder,  consultant or
otherwise,  any person that  competes  with Chemdal US,  Chemdal Asia or the SAP
business in researching,  developing,  manufacturing,  marketing,  distributing,
selling,  producing  or supplying  products or services of the kind  researched,
developed,  manufactured,  marketed,  distributed, sold, produced or supplied by
Chemdal US, Chemdal Asia or the SAP business for traditional SAP market segments
as of the closing.

     For a period of three years after the closing in the European Community and
a period of ten years  after the  closing in every  other  location  or, in each
case,  for such  shorter  period as may be required  by  applicable  law,  AMCOL
further  agreed to not,  and not  permit any of its  affiliates  to, in any way,
directly or indirectly for the purpose of conducting or engaging in any business
that researches, develops,  manufactures,  markets, distributes, sells, produces
or  supplies   products  or   services  of  the  kind   researched,   developed,
manufactured,  marketed,  distributed,  sold,  produced  or  supplied by the SAP
business,  Chemdal US or Chemdal Asia, in each case, for  traditional SAP market
segments as of the  closing,  call upon,  solicit,  advise or  otherwise  do, or
attempt to do, business in the traditional SAP market segments with any customer
of the  SAP  business  with  whom  the SAP  business  had  any  dealings  in the
traditional  SAP  market  segments  during  the  period of time in which the SAP
business,  Chemdal  US,  and  Chemdal  Asia was owned by AMCOL,  or take away or
interfere or attempt to interfere with any custom,  trade, business or patronage
of the SAP business in the traditional SAP market segments.

     Traditional SAP market segments mean disposable hygienics (such as diapers,
adult  incontinence  products,  and feminine care products),  cable wraps,  fire
retardants, freezer packs and food packaging liquid absorption.

     For a period of one year after the  closing,  neither  AMCOL nor any of its
affiliates  will solicit the  employment  of,  attempt to employ,  or employ any
employee of the SAP  business  hired or  retained  by BASF and not  subsequently
terminated.  For a period of one year after the closing, neither BASF nor any of
its affiliates will solicit the employment of, attempt to employ,  or employ any
employee of AMCOL or its affiliates which has not been terminated. The foregoing
restrictions on hiring will not apply to general  solicitations to the public or
general advertising.

Employee Matters

     AMCOL has agreed to indemnify  and hold harmless BASF against any severance
claim and against any loss, damage,  liability or expense incurred in connection
with any  claim  for  severance  benefits  brought  by any  employees  or former
employees of AMCOL,  Chemdal US,  Chemdal Asia or the other  sellers,  except as
provided below. BASF will be responsible for any severance  obligations incurred
pursuant to any severance plan, program  arrangement or agreement of Chemdal US,
Chemdal  Asia  or  any  other  seller  with  respect  to  the  termination  of a
transferred employee or a U.K. designated employee on or after the closing.

     For a period of one year after the closing date, BASF has agreed to provide
the  transferred  employees  who are  employed  by  Chemdal US within the United
States, or the US transferred employees,  with a level of employee benefit plans
and arrangements  substantially  comparable to the employee benefits provided to
similarly  situated  employees of BASF. For certain specified  purposes,  the US
transferred  employees  will be credited  for service  prior to the closing with
Chemdal US or the sellers to the extent that such service was recognized under a
comparable  employee  benefit  plan,  program or  arrangement  under  which such
applicable US transferred employee was participating in immediately prior to the
closing. As of the closing date, each US transferred employee and their eligible
dependents who are  participating  in the sellers'  welfare  benefit plans shall
become entitled to participate in the welfare benefit plans sponsored by BASF or
its affiliates at the closing date. Additional agreements have also been made by
AMCOL and BASF  regarding  employee  benefits to be provided to U.K.  designated
employees and Thai transferred employees.

     The purchase  agreement  requires AMCOL to cause each unvested stock option
to purchase  shares of AMCOL's  common stock held by  transferred  employees and
U.K.  designated  employees to become fully vested and  exercisable on or before
the closing.  For this reason,  AMCOL's  shareholders are being asked to approve
amendments  to  AMCOL's  1993 Stock Plan and 1998  Long-Term  Incentive  Plan to
provide for the  acceleration  of vesting of stock  options held by employees of
the SAP  business.  See  "Proposal 2: The Plan  Amendments."  AMCOL is unable to
accelerate the vesting of the options granted to the U.K.  designated  employees
which were issued  under a scheme  approved  by United  Kingdom  Inland  Revenue
because the necessary  approvals  were not received from United  Kingdom  Inland
Revenue.  Pursuant  to the  purchase  agreement,  AMCOL may either  replace  the
options held by these U.K.  designated  employees or pay a special cash bonus to
these  employees  in an amount  equal to the  product of the number of shares of
AMCOL's common stock subject to an unvested stock option and the excess, if any,
of the closing price on the New York Stock  Exchange of AMCOL's  common stock on
the last trading day  immediately  prior to the closing over the exercise  price
per share of AMCOL's common stock subject to such unvested stock option.

Tax Matters

     AMCOL agreed to indemnify on an  after-tax  basis and hold  harmless  BASF,
each of its  subsidiaries,  Chemdal US and Chemdal  Asia  against the  following
taxes and related expenses:

          -    taxes imposed on Chemdal US, Chemdal Asia or  attributable to the
               SAP assets or the SAP business  with  respect to taxable  periods
               ending on or before the closing date;
          -    with respect to taxable periods beginning before the closing date
               and ending after the closing  date,  taxes imposed on Chemdal US,
               Chemdal  Asia  or  attributable  to the  SAP  assets  or the  SAP
               business which are allocable to the portion of such period ending
               on the closing date;
          -    taxes imposed on any of the sellers, any of their subsidiaries or
               any  member of any  affiliated  group  with  which  Chemdal US or
               Chemdal  Asia files or has filed a tax return on a  consolidated,
               unitary or combined  basis for a taxable  period (or portion of a
               taxable period) ending on or before the closing date;
          -    taxes  imposed on BASF,  any of its  subsidiaries,  Chemdal US or
               Chemdal   Asia  as  a  result  of  any  breach  of   warranty  or
               misrepresentation by AMCOL regarding taxes; and
          -    taxes resulting from any 338(h)(10) election by the parties.

     AMCOL agreed to join BASF in making an election under Section 338(h)(10) of
the Code with respect to the sale of Chemdal US to BASF.

Closing Conditions

     Conditions to AMCOL's  Obligations.  AMCOL's  obligations to consummate the
sale transaction are subject to the  satisfaction of some conditions,  including
the following:

     -    the  representations  and warranties of BASF being true and correct in
          all  material   respects  as  of  the  closing   date,   as  if  those
          representations  and  warranties  were  made at and as of  such  date,
          subject to certain qualifications specified in the purchase agreement;

     -    BASF having complied in all material  respects with all agreements and
          covenants required by the purchase agreement to be complied with by it
          on or before the closing date;

     -    the expiration or termination of any waiting period under the HSR Act;

     -    the purchase agreement having been approved by the affirmative vote of
          AMCOL's shareholders; and

     -    BASF having  executed  and  delivered to AMCOL the Acrylic Acid Supply
          Agreement, the SAP subleases and certain other ancillary agreements.

     Conditions to BASF's Obligations. BASF's obligations to consummate the sale
transaction are subject to the  satisfaction of some  conditions,  including the
following:

     -    the  representations  and  warranties  of the  sellers  being true and
          correct in all material  respects as of the closing  date, as if those
          representations  and  warranties  where  made at and as of such  date,
          subject to certain qualifications specified in the purchase agreement;

     -    the  sellers  having  complied  in  all  material  respects  with  all
          agreements  and  covenants  required by the  purchase  agreement to be
          complied with by it on or before the closing date;
     -    the expiration or termination of any waiting period under the HSR Act;
     -    the purchase  agreement  shall have been  approved by the  affirmative
          vote of AMCOL's shareholders;
     -    no events having  occurred,  which,  individually or in the aggregate,
          have, or are reasonably likely to have, a material adverse effect;
     -    AMCOL or one of its affiliates  having  executed and delivered to BASF
          the Acrylic Acid Supply Agreement, the SAP subleases and certain other
          ancillary agreements; and
     -    the facility being constructed by AMCOL and its affiliates in Thailand
          being mechanically complete in accordance with certain  specifications
          described in the purchase agreement.

Survival of Representations and Warranties; Indemnification

     All representations and warranties of the parties contained in the purchase
agreement will survive the closing for a period of fifteen months  following the
closing  date,  except that the  representations  and  warranties  made by AMCOL
relating to employee benefits taxes, employment taxes and other applicable taxes
shall  survive  until  the 120th day  after  the  expiration  of the  applicable
statutes of limitations,  and the  representations  and warranties made by AMCOL
relating  to  environmental  matters  shall  survive  for a period of four years
following the closing date.

     AMCOL will indemnify BASF, its affiliates and their successors and assigns,
and the officers, directors, employees and
agents of such parties for losses arising out of or resulting from:

     -    the breach of any  representation  or warranty  made by the sellers in
          the purchase agreement (without giving effect to any qualifications or
          limitations  as  to  materiality   except  for   representations   and
          warranties relating to material contracts);
     -    the breach of any covenant or  agreement  by the sellers  contained in
          the purchase agreement;
     -    the excluded liabilities;
     -    all  liabilities  arising  from  or  relating  to the  any  businesses
          conducted by AMCOL and its subsidiaries other than the SAP business;
     -    any liabilities  suffered by BASF, Chemdal US, Chemdal Asia or the SAP
          business  related to the operation of Chemdal US,  Chemdal Asia or the
          SAP  business  prior to the closing to the extent that such  liability
          constitutes  a breach  by the  sellers  of their  representations  and
          warranties in the purchase agreement;
     -    the assets excluded pursuant to the purchase agreement;
     -    subject to certain exceptions,  any losses or liabilities  pursuant to
          any  environmental  law arising from or related to any action,  event,
          circumstance or condition related to the SAP business and occurring or
          existing on or before the closing date;

     -    the transfer or termination of any employees of Chemdal  Limited prior
          to or in  connection  with the closing or the breach by the sellers of
          certain U.K.  employment  laws or  employment  contracts  prior to the
          closing;
     -    subject to certain qualifications,  claims of patent infringement with
          respect to certain patents; and
     -    expenditures or amounts payable in connection with construction of the
          Thai facility.

     BASF will indemnify AMCOL, its affiliates and their successors and assigns,
and the  officers,  directors,  employees  and agents of such parties for losses
arising out of or resulting from:

     -    the  breach  of any  representation  or  warranty  made by BASF in the
          purchase agreement;
     -    the breach of any  covenant  or  agreement  by BASF  contained  in the
          purchase agreement;
     -    any assumed liabilities;
     -    any third party claims arising primarily out of, or relating primarily
          to,  the  conduct  of the SAP  business  before or after the  closing,
          except to the extent that AMCOL is obligated  to  indemnify  BASF with
          respect to such claim or as  otherwise  contemplated  in the  purchase
          agreement;
     -    any  claims  arising  out  of  the  employment  or  discharge  of  any
          transferred employee at any time on or after the closing; or
     -    claims made by any U.K.  designated  employees  against the sellers in
          connection  with the  transfer  of their  employment  pursuant to U.K.
          regulations or from the termination of any U.K.  designated  employees
          after the closing.

          BASF will not be  required to  indemnify  AMCOL for any such losses to
     the extent AMCOL receives insurance proceeds under its applicable insurance
     policies to cover such loss.

     Each party will not be liable for any  indemnification  claim relating to a
breach of its representations and warranties and certain other specified matters
unless the amount of a loss  resulting  from such  claim (or  aggregated  claims
arising out of the same event) exceeds  $150,000 and the aggregate amount of all
losses incurred by the party seeking  indemnification  exceeds $5 million, after
which the  indemnifying  party will only be liable for those losses in excess of
$5 million. Each party's aggregate liability for indemnification claims relating
to a breach of its  representations  and warranties and certain other  specified
matters is also limited to the amount of the purchase price.

Termination

     The purchase  agreement  may be terminated  (subject to a  termination  fee
under certain circumstances as described below) at any time prior to the closing
as follows:

     (a)  By BASF if  before  closing  an event  or  condition  occurs  that has
          resulted  in or that is  reasonably  likely to  result  in a  material
          adverse effect to the SAP business or AMCOL,  Chemdal US, Chemdal Asia
          or any other  seller  makes a general  assignment  for the  benefit of
          creditors,  or any proceeding shall be instituted by or against AMCOL,
          Chemdal US or any seller  seeking to adjudicate any of them a bankrupt
          or insolvent,  or seeking  liquidation,  winding up or reorganization,
          arrangement,  adjustment,  protection,  relief or  composition  of its
          debts  under  any  law   relating   to   bankruptcy,   insolvency   or
          reorganization,  and such  proceeding is not  dismissed  within ninety
          days; or

     (b)  By BASF, upon a breach of any  representation,  warranty,  covenant or
          agreement  on the  part  of the  sellers  set  forth  in the  purchase
          agreement,  or if any  representation  or  warranty of the sellers has
          become untrue,  in either case,  such that BASF's  closing  conditions
          relating to AMCOL's representations and warranties and covenants would
          not be  satisfied;  provided  that if such a breach is  curable by the
          sellers  through the exercise of their  reasonable  efforts and for so
          long as the sellers continue to exercise such reasonable efforts, BASF
          may not terminate the purchase agreement under this provision; or

     (c)  By AMCOL upon a breach of any  representation,  warranty,  covenant or
          agreement on the part of BASF set forth in the purchase agreement,  or
          if any representation or warranty of BASF has become untrue, in either
          case,  such  that  AMCOL's  closing  conditions   relating  to  BASF's
          representations  and warranties and covenants  would not be satisfied;
          provided  that if such breach is curable by BASF  through the exercise
          of its  reasonable  efforts  and  for so long  as  BASF  continues  to
          exercise such reasonable efforts, AMCOL may not terminate the purchase
          agreement under this provision; or

     (d)  By either AMCOL or BASF if the closing  shall not have occurred by May
          31, 2000; or

     (e)  By BASF or AMCOL if AMCOL's  shareholders vote against approval of the
          purchase agreement; or

     (f)  By either BASF or AMCOL in the event that any  governmental  authority
          has  issued  an order,  decree  or  ruling  or taken any other  action
          restraining,  enjoining  or  otherwise  prohibiting  the  transactions
          contemplated by the purchase agreement and such order, decree,  ruling
          or other action has become final and nonappealable; or

     (g)  By AMCOL in order to enter into a definitive agreement with respect to
          a superior proposal;  provided,  however, that AMCOL must provide BASF
          with written notice of such superior proposal,  including a reasonable
          description of the material terms thereof, and AMCOL will not take any
          action in respect of such superior proposal, including terminating the
          purchase  agreement  or  entering  into an  agreement  relating to the
          superior  proposal,  for a  period  of five  business  days  following
          receipt of such notice by BASF and until such time as AMCOL's Board of
          Directors has considered any response to such notice  provided by BASF
          to AMCOL  during such five  business  day period;  provided  that such
          termination will not be effective until AMCOL pays the fee (as defined
          below) to BASF; or

     (h)  By the mutual written consent of AMCOL and BASF.

     In the event of the  termination  of the  purchase  agreement  as  provided
above,  there  will be no  liability  on the part of either  party,  except  for
provisions in the purchase agreement regarding confidential information and fees
and  expenses and that nothing in the  purchase  agreement  will relieve  either
party from liability for any breach of the purchase agreement.

Expenses

     In the event that (1) the purchase  agreement is terminated because AMCOL's
shareholders vote against approval and adoption of the purchase agreement and at
or prior to the time of such vote an  acquisition  proposal has been made public
and AMCOL enters into an agreement with respect to an acquisition  proposal,  or
an acquisition proposal is consummated,  in each case within twelve months after
such termination of this agreement;  (2) the purchase agreement is terminated by
AMCOL in order to enter into a definitive  agreement  with respect to a superior
proposal; or (3) the purchase agreement is terminated for any reason, other than
items (a), (c), (f) or (h) described under "Termination" above, and AMCOL enters
into an agreement with respect to a superior proposal, or a superior proposal is
consummated,  in each case within  twelve months after such  termination  of the
purchase  agreement;  then  AMCOL  will  be  required  to pay  BASF a fee of $20
million, or the fee, plus all of BASF's out of pocket expenses up to $3 million,
or expenses.  If the fee and expenses become payable pursuant to item (1) or (3)
above,  AMCOL is required  to pay such  amounts no later than one  business  day
after consummation of the acquisition proposal or the superior proposal,  as the
case may be, and if the fee and  expenses  become  payable  pursuant to item (2)
above,  AMCOL is  required  to pay such  amounts  prior  to  termination  of the
purchase agreement.

Ancillary Agreements

     Acrylic Acid Supply Agreement. Immediately prior to the closing of the sale
transaction,  Chemdal  Limited  and a BASF  subsidiary  will enter into a supply
agreement  pursuant to which the BASF  subsidiary  will supply  acrylic  acid to
Chemdal  Limited for a period of ten years.  Upon the signing of such agreement,
the BASF subsidiary will pay a  non-refundable  signing premium of $28.5 million
to Chemdal  Limited as  consideration  for entering  into the supply  agreement.
Immediately following the closing of the sale transaction,  the supply agreement
will be assigned by Chemdal Limited to one of BASF's designated affiliates which
will  assume  Chemdal  Limited's  obligations  under the supply  agreement,  and
Chemdal  Limited will be released  from any further  liability  under the supply
agreement.

     SAP Subleases. At the closing, AMCOL and BASF will enter into subleases for
a portion of two  facilities  currently  leased by AMCOL in  Arlington  Heights,
Illinois.  The first sublease is for  approximately  7,453 square feet currently
being used as  Chemdal's  corporate  headquarters.  The second  sublease  is for
approximately  14,610 square feet currently being used as a research laboratory.
The initial annual base rent under these subleases will be approximately $99,800
and $136,000, respectively,  subject to annual escalations. This rent will cover
AMCOL's costs for the space being  subleased.  BASF will also be required to pay
its  proportionate  share of operating  expenses,  real estate taxes and certain
other expenses. The term of each sublease will expire on July 31, 2008.

     One of AMCOL's subsidiaries and an affiliate of BASF will also enter into a
lease  agreement  for a  portion  of  certain  properties  owned  by such  AMCOL
subsidiary in Birkenhead,  Merseyside, U.K. The annual rent under the lease will
be determined by the parties after the closing of the sale transaction, but will
be between  70,000 and 100,000  Pounds.  The term of the lease will be for seven
years.

                          MARKET PRICE DATA; DIVIDENDS

     AMCOL's common stock trades on the New York Stock Exchange under the symbol
ACO.  Prior to  September  22, 1998,  AMCOL's  common stock traded on the Nasdaq
National Market tier of The Nasdaq Stock Market under the symbol ACOL. The table
below sets forth, for the calendar periods indicated, the high and low intra-day
sales  price per share of  AMCOL's  common  stock as  reported  by the  relevant
organizations, and cash dividends declared per share.


                                                                                                         Cash
                                                                                                       Dividends
                                                                                                       Declared
                                                                                Stock Price            Per Share
                                                                            High          Low
                                                                       
Fiscal Year Ended December 31, 2000:          1st Quarter..............            $             $                $
                                              2nd Quarter (through
                                              April    , 2000).........
Fiscal Year Ended December 31, 1999:          1st Quarter..............      $11.375        $8.250           $.0600
                                              2nd Quarter..............       14.750         8.875            .0700
                                              3rd Quarter..............       15.125        13.250            .0700
                                              4th Quarter..............       17.750        12.000            .0700
Fiscal Year Ended December 31, 1998:          1st Quarter..............      $16.375       $12.125           $.0550
                                              2nd Quarter..............       16.375        11.500            .0550
                                              3rd Quarter..............       14.250         9.375            .0600
                                              4th Quarter..............       11.375         8.000            .0600

     On  November  22,  1999,  the last  full  trading  day  before  the  public
announcement of the sale transaction,  the high and low sales price per share of
AMCOL's  common stock,  as quoted on the NYSE  Composite  Tape,  were $13.75 and
$13.4375, respectively.

     The closing sales price for the shares of AMCOL's  common stock as reported
on the NYSE Composite Tape on April __, 2000 (the latest  practicable date prior
to mailing this proxy  statement) was $________.  As of the close of business on
the record  date,  there  were  __________  holders of record of AMCOL's  common
stock, excluding shares held in street name.

     In connection with the sale transaction,  the Board of Directors  currently
intends  to adopt a plan of partial  liquidation  pursuant  to which  AMCOL will
distribute  pro  rata  to its  shareholders  a  significant  portion  of the net
proceeds  from the sale  transaction.  AMCOL  currently  expects  to  distribute
between  $14.00 and $14.50  per share in the second  quarter of 2000.  We cannot
assure  you that any plan of  partial  liquidation  will be  adopted or that any
distribution  will be made.  The Board of Directors  will consider the facts and
circumstances  existing  after  completion of the sale  transaction to determine
whether a  distribution  in  partial  liquidation  is in the best  interests  of
AMCOL's  shareholders  at that  time  and the  timing  and  amount  of any  such
distribution. Any plan of partial liquidation must be approved by the Board, but
does not require the approval of AMCOL's  shareholders.  You are not being asked
to vote on or approve any plan of partial liquidation. See "Proposal 1: The Sale
Transaction - Use of Proceeds."

     After the closing of the sale transaction, the payment of dividends and the
amount and timing of such  dividends  will depend on AMCOL's  earnings,  capital
requirements,  financial  condition and other factors deemed relevant by AMCOL's
Board of Directors.

                AMCOL INTERNATIONAL CORPORATION AND SUBSIDIARIES
             UNAUDITED PRO FORMA CONSOLIDATED FINANCIAL INFORMATION

     The following Unaudited Pro Forma Consolidated  Financial Information gives
effect to the  consummation  of the sale  transaction  and the  proposed  use of
proceeds as if  consummated:  on December 31, 1999, in the case of the Unaudited
Pro Forma Balance Sheet; and on January 1, 1997, the first day of AMCOL's fiscal
year, in the case of the Unaudited  Pro Forma  Statements of Operations  for the
fiscal years ended December 31, 1997, 1998 and 1999.

     The Unaudited Pro Forma Consolidated Financial Information is presented for
illustrative  purposes only and does not necessarily  reflect what our financial
position and results of operation  would have been if the sale  transaction  and
the proposed use of proceeds had been consummated on the above referenced dates,
and may not be indicative of our future performance,  nor does it give effect to
any  transactions  other  than  the sale  transaction  and the  proposed  use of
proceeds  as  described  in the Notes to the  Unaudited  Pro Forma  Consolidated
Financial Information or AMCOL's results of operations since December 31, 1999.

     The  Unaudited  Pro Forma  Balance Sheet at December 31, 1999 is based upon
AMCOL's  financial  position at  December  31,  1999.  The  Unaudited  Pro Forma
Statements of Operations for the fiscal years ended December 31, 1997,  1998 and
1999 are based upon AMCOL's results of operations for those years.

     The Unaudited Pro Forma Consolidated  Financial Information is qualified in
its  entirety  by,  and  should be read in  conjunction  with,  AMCOL's  audited
consolidated  financial  statements  and  the  notes  thereto  and  Management's
Discussion and Analysis of Financial  Condition and Results of Operations  which
are incorporated by reference to this Proxy Statement.



                                                   UNAUDITED PRO FORMA FINANCIAL INFORMATION
                                                             BALANCE SHEET
                                                           December 31, 1999
                                                            (in thousands)
                                                                              Reclassify SAP
                                                             Historical        Discontinued         Adjustment          Pro Forma
                                                                              Operations (E)


Current assets:

                                                                                                              
  Cash and cash equivalents                                    $    3,815           $     139          $       -          $    3,954

  Accounts receivable:

     Trade, net                                                    98,943            (50,013)                  -              48,930

     Other                                                          7,873             (4,747)                  -               3,126

  Inventories                                                      40,680             (9,715)                  -              30,965

  Prepaid expenses                                                  6,571                 (5)                  -               6,566

  Current deferred tax asset                                        6,888               (541)                  -               6,347

  Net current assets of discontinued operations                         -              40,147           (40,147)  (H)              -

Total current assets                                              164,770            (24,735)           (40,147)              99,888

Investment in and advances to joint ventures                        9,111                   -                  -               9,111

Property,   plant,   equipment  and  mineral   rights  and
reserves:

  Land and mineral rights and reserves                             12,369             (2,401)                                  9,968

  Depreciable assets                                              339,006           (153,652)                  -             185,354

                                                                  351,375           (156,053)                  -             195,322

  Less accumulated depreciation                                   178,967            (72,905)                  -             106,062

                                                                  172,408            (83,148)                  -              89,260

Other assets:

  Goodwill and other intangible assets, net                           452                   -                  -                 452

  Long-term prepayments and other assets                            1,534                   -                  -               1,534

  Deferred tax asset                                                  732                   -                  -                 732

                                                                    2,718                   -                  -               2,718

Net non-current assets of discontinued operations                       -              81,531           (81,531)  (H)              -

Total assets                                                  $   349,007        $   (26,352)       $  (121,678)         $   200,977



Current liabilities:

  Current maturities of long-term obligations                   $     509           $       -          $       -           $     509

  Accounts payable                                                 20,656             (9,880)                  -              10,776

  Accrued income taxes                                              7,564             (5,263)                  -               2,301

  Accrued liabilities                                              30,986             (9,592)                  -              21,394

Total current liabilities                                          59,715            (24,735)                  -              34,980

Long-term debt                                                     93,914                   -           (44,289)  (C)         49,625

Deferred income tax liabilities                                         -             (2,781)                  -             (2,781)

Other liabilities                                                   8,938               (321)                  -               8,617

                                                                    8,938             (3,102)                  -               5,836

Stockholders' equity:

  Common stock                                                        320                   -                  -                 320

  Additional paid-in-capital                                       76,440                   -                  -              76,440

  Foreign currency translation adjustment                         (2,607)               1,485                  -             (1,122)

  Retained earnings                                               142,270                   -            312,673  (B)        454,943

  Distribution to stockholders                                          -                   -          (390,062)  (A)      (390,062)

  Treasury stock                                                 (29,983)                   -                  -            (29,983)

Total stockholders' equity                                        186,440               1,485           (77,389)             110,536



Total liabilities and stockholders' equity                    $   349,007        $   (26,352)       $  (121,678)         $   200,977
                                                           ===============    ================    ===============     =============




                                          UNAUDITED PRO FORMA FINANCIAL INFORMATION
                                                       STATEMENT OF OPERATIONS
                                                    Year Ended December 31, 1999
                                                           (in thousands)
                                                                              Reclassify SAP
                                                                                Business to         Pro Forma
                                                             Historical        Discontinued         Adjustment          Pro Forma
                                                                                Operations

                                                                                                             
Net sales                                                     $   552,052        $  (252,908) (E)      $       -         $   299,144

Cost of sales                                                     414,256           (184,006) (E)              -             230,250

     Gross profit                                                 137,796            (68,902)                  -              68,894



General, selling and administrative expenses                       79,834            (17,052) (E)        (1,257) (M)          61,525

Write down of impaired assets                                      14,529                   -                  -              14,529



Operating profit                                                   43,433            (51,850)              1,257             (7,160)



Other income (expense):

     Interest expense, net                                        (6,396)                 111 (E)          3,687 (F)         (2,598)

     Other, net                                                   (1,338)                 269 (E)              -             (1,069)

Total other income (expense)                                      (7,734)                 380              3,687             (3,667)



Income before income taxes and joint ventures                      35,699            (51,470)              4,944            (10,827)

     Income taxes                                                  13,913            (20,058) (N)          1,927 (G)         (4,218)

Income before joint ventures                                       21,786            (31,412)              3,017             (6,609)

     Equity interests in income of joint ventures                     448                   -                  -                 448



Income from continuing operations                             $    22,234        $   (31,412)         $    3,017        $    (6,161)



Weighted average common shares                                 26,772,569                                                 26,772,569

Weighted average common and common equivalent shares           27,199,263                                                 27,199,263



Earnings per share:

     Basic                                                     $     0.83                                                $    (0.23)

     Diluted                                                   $     0.82                                                $    (0.23)
                                                           ===============                                            =============




                                              UNAUDITED PRO FORMA FINANCIAL INFORMATION
                                                       STATEMENT OF OPERATIONS
                                                    Year ended December 31, 1998
                                                           (in thousands)
                                                                              Reclassify SAP
                                                                                Business to         Pro Forma
                                                             Historical        Discontinued         Adjustment          Pro Forma
                                                                                Operations

                                                                                                             
Net sales                                                     $   521,530        $  (221,093) (E)      $       -         $   300,437

Cost of sales                                                     410,359           (174,635)                  -             235,724
                                                                                              (E)

     Gross profit                                                 111,171            (46,458)                  -              64,713



General, selling and administrative expenses                       68,951            (13,207)                  -              55,744
                                                                                              (E)



Operating profit                                                   42,220            (33,251)                  -               8,969



Other income (expense):

     Interest expense, net                                        (7,933)               1,345              5,541 (I)         (1,047)
                                                                                              (E)

     Other, net                                                       140                  16                  -                 156
                                                                                              (E)

                                                                  (7,793)               1,361              5,541               (891)



Income before income taxes and minority interest                   34,427            (31,890)              5,541               8,078

     Income taxes                                                  12,350            (11,439) (N)          1,988 (J)           2,899

Income before minority interest                                    22,077            (20,451)              3,554               5,179

     Minority interest                                                  8                   -                  -                   8



Income from continuing operations                             $    22,085        $   (20,451)         $    3,554          $    5,187



Weighted average common shares                                 27,918,391                                                 27,918,391

Weighted average common and common equivalent shares           28,385,860                                                 28,385,860



Earnings per share:

     Basic                                                     $     0.79                                                 $     0.19

     Diluted                                                   $     0.78                                                 $     0.18
                                                           ===============                                            =============




                                              UNAUDITED PRO FORMA FINANCIAL INFORMATION
                                                       STATEMENT OF OPERATIONS
                                                    Year ended December 31, 1997
                                                           (in thousands)
                                                                              Reclassify SAP
                                                                                Business to         Pro Forma
                                                             Historical        Discontinued         Adjustment          Pro Forma
                                                                                Operations

                                                                                                             
Net sales                                                     $   477,060        $  (195,944)          $       -         $   281,116
                                                                                              (E)

Cost of sales                                                     376,319           (154,983)                  -             221,336
                                                                                              (E)

     Gross profit                                                 100,741            (40,961)                  -              59,780



General, selling and administrative expenses                       59,272            (12,098)                  -              47,174
                                                                                              (E)



Operating profit                                                   41,469            (28,863)                  -              12,606



Other income (expense):

     Interest expense, net                                        (8,628)               1,531              7,114 (K)              17
                                                                                              (E)

     Other, net                                                     (398)                 459                  -                  61
                                                                                              (E)

                                                                  (9,026)               1,990              7,114                  78



Income before income taxes and minority interest                   32,443            (26,873)              7,114              12,684

     Income taxes                                                  11,399             (9,443) (N)          2,500 (L)           4,456

Income before minority interest                                    21,044            (17,430)              4,614               8,228

     Minority interest                                                  -                   -                  -                   -



Income from continuing operations                             $    21,044        $   (17,430)         $    4,614          $    8,228



Weighted average common shares                                 28,488,527                                                 28,488,527

Weighted average common and common equivalent shares           29,125,168                                                 29,125,168



Earnings per share:

     Basic                                                     $     0.74                                                 $     0.29

     Diluted                                                   $     0.72                                                 $     0.28
                                                           ===============                                            =============


<FN>
                           Notes to Unaudited Pro Forma Consolidated Financial Information

(A)      For pro forma purposes at December 31, 1999, the total  distribution to stockholders is calculated  below.  The sales price
         is net of estimated transaction costs of $13,700,000.

                        -----------------------------------------------------------------
                        Sales price, net of estimated transaction costs   $  642,800
                        -----------------------------------------------------------------
                        -----------------------------------------------------------------
                        Less intercompany indebtedness                        44,289 (C)
                        -----------------------------------------------------------------
                        -----------------------------------------------------------------
                        Net cash proceeds                                    598,511
                        -----------------------------------------------------------------
                        -----------------------------------------------------------------
                        Income taxes                                         208,449
                        -----------------------------------------------------------------
                        -----------------------------------------------------------------
                        Distribution to stockholders                         390,062
                        ------------------------------------------------=============----
                        -----------------------------------------------------------------
                        Common stock outstanding                          26,852,081
                        -----------------------------------------------------------------
                        -----------------------------------------------------------------
                        Distribution per share                             $   14.53
                        ------------------------------------------------=============----

          The  distribution  per share was calculated  based on common stock and
          intercompany  indebtedness outstanding at December 31,1999. The actual
          amount of any distribution will be determined after the closing of the
          sale  transaction  and will be based on the amount of  indebtedness of
          the SAP business to be repaid and the number of shares of common stock
          outstanding  at such  time.  The  number of  shares  of  common  stock
          outstanding  will increase in the event an AMCOL director or employees
          exercise  vested  outstanding  options prior to the record date of the
          distribution.  The actual  amount of any  distribution  will likely be
          different from the amount indicated above.

          (B) For pro forma  purposes at December 31, 1999,  gain on sale of SAP
          business and resulting effect on equity is calculated below.

                        -----------------------------------------------------------------
                        Sales price, net of estimated transaction costs   $  642,800
                        -----------------------------------------------------------------
                        -----------------------------------------------------------------
                        Net investment in SAP business                       121,678
                        -----------------------------------------------------------------
                        -----------------------------------------------------------------
                        Gain before income taxes                             521,122
                        -----------------------------------------------------------------
                        -----------------------------------------------------------------
                        Income taxes                                         208,449 (D)
                        -----------------------------------------------------------------
                        -----------------------------------------------------------------
                        Net gain on sale                                     312,673
                        -----------------------------------------------------------------
                        -----------------------------------------------------------------
                        Distribution to stockholders                         390,062
                        -----------------------------------------------------------------
                        -----------------------------------------------------------------

                        Net decrease in equity                           $  (77,389)
                        ------------------------------------------------=============----

(C)      The  intercompany  indebtedness  as of the date of closing will reduce the cash  received on the date of sale but will be
         paid by BASF the day following the closing date.  This amount will be used to repay a portion of AMCOL's  long-term  debt
         and could vary based on the  indebtedness  level at the date of closing.  As of  December  31, 1999 the  intercompany
         indebtedness  was $44,289,000.  Increases  or  decreases  in this amount from the  pro-forma  amount to the actual  amount
         will  proportionately effect  interest  expense in future  periods,  as this amount will directly  reduce  long-term  debt.
         For every  $1,000,000 of additional debt as of the date of closing annual interest expense in future periods will decrease
         by $62,500.

(D)      Tax expense for federal and state purposes is calculated at the effective statutory rate at December 31, 1999 of 40%.

(E)      To reclassify the SAP business as a discontinued operation as a result of the proposed sale of the business.

(F)      To record  reduction in interest  expense  arising from the repayment of  indebtedness  using the funds  received from
         BASF to settle the  intercompany  liability,  as discussed in Note C. The  indebtedness  repaid had an average  interest
         rate of 6.25% for the year ended December 31, 1999.

(G)      To record income tax benefit attributable to adjustment (F) at the 1999 effective rate of 38.97%.

(H)      To remove the net assets of the SAP business.

(I)      To record  reduction in interest  expense  arising from the repayment of  indebtedness  using the funds  received from BASF
         to settle the  intercompany  liability,  as discussed in Note C. The  indebtedness  repaid had an average  interest rate of
         7.15% for the year ended December 31, 1998.

(J)      To record income tax benefit attributable to adjustment (I) at the 1998 effective rate of 35.87%.

(K)      To record  reduction in interest  expense  arising from the repayment of  indebtedness  using the funds  received from
         BASF to settle the  intercompany  liability,  as discussed in Note C. The  indebtedness  repaid had an average  interest
         rate of 7.30% for the year ended December 31, 1997.

(L)      To record income tax benefit attributable to adjustment (K) at the 1997 effective rate of 35.14%.

(M)      To reclassify  acquisition costs expensed up through the third quarter to discontinued  operations as a result of the
         proposed sale of the SAP business.

(N)      To  reclassify  the SAP  business as a  discontinued  operation  as a result of the  proposed  sale of the SAP  business.
         The difference  in the income  taxes of the SAP  business in the  unaudited  statements  of  operations  is due to the
         additional expenses  related to  intercompany  royalties,  intercompany  interest,  corporate  allocations and the use of a
         different tax rate.  The tax rate used in the  pro-forma  financial  statements  is a  consolidated  effective tax rate
         whereas the tax rate used in the unaudited financial statements of the SAP business is the effective tax rate for the SAP
         business.
</FN>


                        UNAUDITED FINANCIAL STATEMENTS OF THE SAP BUSINESS

     The following are the unaudited comparative financial statements of the SAP
business.  The unaudited financial  statements have been derived from historical
financial  data of AMCOL and include  balance  sheets of the SAP  business as of
December 31, 1999 and 1998,  and the related  statements of operations  and cash
flows for each of the years in the three year period  ending  December 31, 1999.
This  financial  information  does not  necessarily  reflect what the  financial
position and results of  operation  of the SAP business  would have been if such
business  were  operated  as a  separate,  stand-alone  entity  for the  periods
presented,  and may  not be  indicative  of the  future  performance  of the SAP
business.

     The unaudited financial statements of the SAP business are qualified in its
entirety  by,  and  should  be  read  in  conjunction   with,   AMCOL's  audited
consolidated  financial  statements  and  the  notes  thereto  and  Management's
Discussion and Analysis of Financial  Condition and Results of Operations  which
are incorporated by reference to this Proxy Statement.



                                                    SAP BUSINESS
                                                   BALANCE SHEETS
                                                     (Unaudited)
                                                   (in thousands)

                                     ASSETS                                                 December 31

                                                                                      1999               1998

Current assets:

                                                                                                 
   Cash and cash equivalents                                                        $     (139)        $    (3,448)

   Accounts receivable:

      Trade, less allowance for doubtful accounts of $1,876 and $1,393                   50,013              41,155

      Other                                                                               4,747               2,354

   Inventories                                                                            9,715              11,479

   Prepaid expenses                                                                           5                 491

   Current deferred tax asset                                                               541                 521

Total current assets                                                                     64,882              52,552



Investment in and advances to joint ventures                                                  -                  10



Property, plant, equipment and mineral rights and reserves:

   Land and mineral rights and reserves                                                   2,401               2,461

   Depreciable assets                                                                   153,652             134,104

                                                                                        156,053             136,565

   Less accumulated depreciation                                                         72,905              57,150

                                                                                         83,148              79,415



Total assets                                                                        $   148,030         $   131,977




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

                      LIABILITIES AND STOCKHOLDERS' EQUITY                                  December 31

                                                                                      1999               1998



Current liabilities:

   Notes payable and current maturities of long-term obligations                      $       -          $    1,577

   Accounts payable                                                                       9,880               8,023

   Accrued income taxes                                                                   5,263                   -

   Accrued liabilities                                                                    9,592               9,401

   Due to AMCOL                                                                          44,289              58,994

Total current liabilities                                                                69,024              77,995



Deferred income tax liabilities                                                           2,781               5,213

Other liabilities                                                                           321                 315

                                                                                          3,102               5,528

Stockholders' equity:

   Common stock                                                                          13,135              13,135

   Additional paid-in-capital                                                             2,235               2,235

   Retained earnings                                                                     62,019              33,507

   Cumulative translation adjustment                                                    (1,485)               (423)

                                                                                         75,904              48,454



Total liabilities and stockholders' equity                                          $   148,030         $   131,977
- - ---------------------------------------------------------------------------------===============----================


See accompanying notes to financial statements.



                                                    SAP BUSINESS
                                              STATEMENTS OF OPERATIONS
                                                     (Unaudited)
                                                   (in thousands)



                                                                            Years Ended December 31,
                                                             -------------------------------------------------------

                                                                  1999                1998               1997

                                                                                               
Net sales                                                       $   252,908         $   221,093         $   195,944

Cost of sales                                                       184,006             174,635             154,983

   Gross profit                                                      68,902              46,458              40,961

General, selling and administrative expenses                         17,052              13,207              12,098

Write down of intangible and long-term assets                             -                   -                   -

Operating profit                                                     51,850              33,251              28,863

Other income (expense):

   Intercompany interest expense                                    (2,845)             (3,591)             (5,756)

   Other interest expense                                             (111)             (1,345)             (1,531)

   Intercompany royalties                                           (2,053)             (1,844)             (4,679)

   Other, net                                                         (269)                (16)               (459)

                                                                    (5,278)             (6,796)            (12,425)

Income before allocations                                            46,572              26,455              16,438

   Corporate allocations                                            (2,489)             (1,778)             (1,585)

Income before income taxes and minority interest                     44,083              24,677              14,853

   Income taxes                                                      15,571               8,838               5,340

Net income                                                      $    28,512         $    15,839          $    9,513



Retained earnings at the beginning of the year                       33,507              23,668              14,155

Dividends paid                                                            -             (6,000)                   -

Retained earnings at the end of the year                        $    62,019         $    33,507         $    23,668
- - -------------------------------------------------------------===============-----===============----================

See accompanying notes to financial statements.



                                                    SAP BUSINESS
                                              STATEMENTS OF CASH FLOWS

                                                     (Unaudited)
                                                   (in thousands)



                                                                            Years Ended December 31,
                                                             -------------------------------------------------------

                                                                  1999                1998               1997



Cash flows from operating activities:

                                                                                                
   Net income                                                   $    28,512         $    15,839          $    9,513

      Adjustment to reconcile net income to net cash
provided by
      operating activities:

         Depreciation and amortization                               17,356              14,840              14,362

         Loss on sale or transfer of depreciable assets                  49                  13                  --

         Changes in assets and liabilities:

            (Increase) decrease in:

               Accounts receivable                                 (11,251)             (5,708)             (3,233)

               Inventories                                            1,764                 408               4,732

               Prepaid expenses                                         486                 583               (819)

               Deferred income taxes                                (2,452)               2,741               1,336

               Accounts payable                                       1,857               2,103             (5,273)

               Accrued income taxes                                   5,263                  --                  --

               Accrued liabilities                                      191               1,039               5,525

               Other liabilities                                          6                (95)               (119)



                  Net cash used in operating activities              41,781              31,763              26,024



Cash flows from investing activities:

   Acquisition of depreciable assets                               (22,639)             (9,614)             (4,842)

   Investment in/advance to subsidiary                                   10                (10)                  --

   Foreign currency                                                     439               (423)             (2,700)



                  Net cash used in investing activities            (22,190)            (10,047)             (7,542)



Cash flows from financing activities:

   Payment of cash dividends                                             --             (6,000)                  --

   Issuance of notes payable                                             --                  10                  --

   Payment of notes payable                                         (1,577)                  --                (60)

   Net payments to AMCOL                                           (14,705)            (18,504)            (19,950)



                  Net cash provided by financing activities        (16,282)            (24,494)            (20,010)



                  Net increase in cash and cash equivalents           3,309             (2,778)             (1,528)



                  Cash and cash equivalents at the                  (3,448)               (670)                 858
beginning of year



                  Cash and cash equivalents at the end of       $     (139)        $    (3,448)         $     (670)
year

See accompanying notes to financial statements.


                                  SAP BUSINESS
                          NOTES TO FINANCIAL STATEMENTS
                                 (in thousands)
Note 1:  BASIS OF PRESENTATION

     The financial  information  included herein has been prepared by management
without audit. The information  furnished herein includes all adjustments  which
are,  in the  opinion  of  management,  necessary  for a fair  statement  of the
financial  position  and  operating  results and all such  adjustments  are of a
normal recurring nature.

Note 2:  INVENTORIES

     Inventories  are valued at the lower of cost or market.  Cost is determined
by the first-in,  first-out  method.  The composition of inventories at December
31, 1999 and December 31, 1998, was as follows:


                                                                          1999                1998
                                                                                                 
         Finished Product Inventory                                       $   5,899           $   8,468
         Stores Inventory                                                     3,816               3,011
                                                                          $   9,715          $   11,479

                                 PROPOSAL 2:  THE PLAN AMENDMENTS

General

     The Board of  Directors  has  adopted,  subject  to  shareholder  approval,
amendments  to AMCOL's  1993 Stock  Plan,  or the 1993 plan,  and  AMCOL's  1998
Long-Term  Incentive Plan, or the 1998 plan,  which provide for the acceleration
of vesting of all options  held by employees  who will become  employees of BASF
except for nonvested options held by employees whose options were issued under a
scheme approved by United Kingdom Inland Revenue.  This  acceleration of vesting
will become effective  immediately  upon receipt of shareholder  approval of the
vesting amendments at the special meeting.  In addition,  the Board of Directors
has  adopted,  subject to  shareholder  approval,  an amendment to the 1998 plan
which  deletes  the  $100,000  cap on the  aggregate  fair  market  value  of an
employee's  incentive stock options,  or ISOs,  which become  exercisable in any
calendar year.

     The 1993 plan and the 1998 plan were  approved by AMCOL's  shareholders  at
AMCOL's annual meeting of shareholders held in 1993 and 1998,  respectively.  As
of April __,  2000,  options to purchase  ___________  shares of AMCOL's  common
stock held by _______ employees will become immediately vested upon the approval
of the plan  amendments  by  AMCOL's  shareholders.  This  includes  options  to
purchase  ___ shares of AMCOL's  common  stock held as of April __, 2000 by Gary
Castagna, an executive officer of AMCOL. The exercise prices of the options held
by the Chemdal  employees range from $_______ to $________.  The exercise prices
of the  options  held by Mr.  Castagna  range from $___ to $_____.  Based on the
closing sale price of AMCOL's  common stock on April __, 2000 as reported by the
New York Stock  Exchange,  the aggregate  value of the benefit to be received by
Mr. Castagna upon the acceleration of the options held by him is $___________.

     The purchase  agreement  requires AMCOL to cause each unvested stock option
to purchase  shares of AMCOL's  common stock held by employees who are to become
employees  of BASF to become  fully  vested  and  exercisable  on or before  the
closing.  However,  AMCOL is unable to  accelerate  the  vesting of the  options
granted to employees who reside in the United  Kingdom which were issued under a
scheme approved by United Kingdom Inland Revenue because the necessary approvals
were not received from United Kingdom Inland  Revenue.  Pursuant to the purchase
agreement,  AMCOL may either replace the options held by these  employees in the
United Kingdom or pay a special cash bonus to these employees in an amount equal
to the  product of the number of shares of AMCOL's  common  stock  subject to an
unvested  stock option and the excess,  if any, of the closing  price on the New
York Stock Exchange of AMCOL's common stock on the last trading day  immediately
prior to the closing over the exercise  price per share of AMCOL's  common stock
subject to such unvested stock option.

     The 1998 Plan  contains a provision  which  prohibits  the  aggregate  fair
market value of an employee's ISOs which become exercisable in any calendar year
to exceed  $100,000.  Due to the  acceleration of vesting of the options held by
these  employees,  the aggregate  fair market value of certain  employees'  ISOs
which will become  exercisable  will exceed  $100,000.  Therefore,  the Board of
Directors has decided to delete this restriction from the 1998 plan.

The 1993 Plan and the 1998 Plan

     Purpose. The purpose of the 1993 plan and 1998 plan is to provide officers,
directors and employees who have  substantial  responsibility  for the direction
and  management of AMCOL with an additional  incentive to promote the success of
AMCOL's  business,  to encourage  such persons to remain in the service of AMCOL
and to enable them to acquire proprietary interests in AMCOL. The following is a
summary of the 1993 plan and the 1998 plan.  You are encouraged to read the 1993
plan and the 1998 plan in their  entirety.  These documents have been filed with
the SEC and are publicly available. See "Additional Information."

     Awards.  Both the 1993 plan and the 1998 plan  provide for the  granting of
awards of restricted  stock, ISOs within the meaning of Section 422 of the Code,
nonqualified stock options, or NSOs, and stock appreciation  rights, or SARs. In
addition,  the 1993 plan  provides for the granting of awards of phantom  stock.
The 1993 plan and the 1998 plan permit a total of 1,260,000 and 1,900,000 shares
of AMCOL's common stock to be awarded to participants, respectively. However, as
of March 1, 1998, no further awards may be made pursuant to the 1993 plan. As of
April __, 2000 the closing  sale price of AMCOL's  common  stock was $______ per
share as reported by the New York Stock Exchange.

     The Committee.  Both the 1993 plan and the 1998 plan are  administered by a
committee composed of two or more individuals  elected by the Board of Directors
from time to time. The committee administering the 1998 plan must be composed of
directors.  Currently,  both the 1993 plan and the 1998 plan are administered by
the Compensation Committee of the Board of Directors. The Compensation Committee
from  time to time  grants  awards  under  the 1998  plan to  selected  eligible
directors and employees, without payment by the participant. As set forth above,
awards are no longer made pursuant to the 1993 plan.

     Restricted  Stock  Awards.  The  1993  plan and the 1998  plan  permit  the
granting of awards of restricted stock to any participant.  Awards of restricted
stock  may be issued to  participants  without  payment.  Upon  completion  of a
vesting period and the fulfillment of any required conditions, restrictions upon
the  restricted  stock  expire and new  certificates  representing  unrestricted
shares of common stock are issued to the participant. Generally, the participant
will have all of the rights of a shareholder of AMCOL with respect to his shares
of restricted stock including, but not limited to, the right to vote such shares
and the  right to  receive  dividends  payable  with  respect  to the  shares of
restricted stock.

     Incentive  Stock Options.  Both the 1993 plan and the 1998 plan provide for
the granting of ISOs to any employee of AMCOL.  The  committee has the authority
to  determine  the terms and  conditions  of each ISO grant,  including  without
limitation,  the number of shares subject to each ISO and the option period. The
ISO exercise price is also  determined by the committee and may not be less than
the fair market value of AMCOL's common stock on the date of grant. The exercise
price may not be less than 110% of such fair market value if the participant was
the holder of more than 10% of AMCOL's outstanding voting securities. Unless the
committee  otherwise  determines,  the option  period for ISOs granted under the
1993 plan expire upon the earliest of:

          -    ten years  after the date of grant  (five  years in the case of a
               holder  of  more   than  10%  of   AMCOL's   outstanding   voting
               securities);
          -    three months after termination of employment for any reason other
               than death;
          -    twelve months after death; or
          -    such other date or event as specified by the committee.

     Unless the  committee  otherwise  determines,  the  option  period for ISOs
granted under the 1998 plan will expire upon the earliest of:

          -    ten years  after the date of grant  (five  years in the case of a
               holder  of  more   than  10%  of   AMCOL's   outstanding   voting
               securities);
          -    three months after termination of employment for any reason other
               than cause, death or total and permanent disability;
          -    immediately upon termination of employment for cause;
          -    twelve months after death or termination of employment on account
               of total and permanent disability; or
          -    such other date or event as specified by the committee.

     Nonqualified Stock Options. The 1993 plan and the 1998 plan provide for the
granting  of  NSOs to any  participant.  The  committee  has  the  authority  to
determine the terms and conditions of each grant  including the number of shares
subject to each NSO, the option period and the option  exercise  price.  The NSO
exercise  price may not be less than 85% of the fair market  value of the common
stock on the date of grant.  Unless  the  committee  otherwise  determines,  the
option  period for NSOs  granted  pursuant to the 1993 plan will expire upon the
earliest of:

          -    three months after termination of employment for any reason other
               than death;
          -    twelve months after death; or
          -    such other date or event as specified by the committee.

     Unless the  committee  otherwise  determines,  the  option  period for NSOs
granted pursuant to the 1998 plan will expire upon the
earliest of:

          -    ten years after the date of grant;
          -    three months after termination of employment for any reason other
               than cause,  death, total and permanent  disability or retirement
               after age 65  (nonemployee  directors  will be  treated  as being
               terminated when they cease to serve on the Board);
          -    immediately upon termination of employment for cause;
          -    sixty  months  after  termination  of  employment  on  account of
               retirement after age 65;
          -    twelve months after death or termination of employment on account
               of total and permanent disability; or
          -    such other date or event as specified by the committee.

     Stock Appreciation Rights. Both the 1993 plan and the 1998 plan provide for
the granting of SARs to any participant.  SARs granted by the committee pursuant
to the 1993 plan or the 1998 plan may  relate to and be  associated  with all or
any part of a specific  ISO or NSO.  An SAR shall  entitle  the  participant  to
surrender  any then  exercisable  portion  of the SAR and,  if  applicable,  the
related ISO or NSO. In exchange,  the  participant  would  receive from AMCOL an
amount equal to the product of the excess of the fair market value of a share of
common stock on the date of  surrender  over the fair market value of the common
stock on the date the SARs were issued, or, if the SARs are related to an ISO or
an NSO, the per share  exercise price under such option and the number of shares
of common stock  subject to such SAR,  and, if  applicable,  the related  option
which is surrendered. SARs may be exercisable during a period established by the
committee and, if related to an ISO or NSO, shall  terminate on the same date as
the related option. Upon exercise,  participants may be paid in shares of common
stock or cash, as determined by the committee.

     Phantom  Stock.  The 1993 plan  provided  for awards of phantom  stock to a
participant.  Subject to any limitations  imposed by the committee,  an award of
phantom stock  entitles the  participant  to surrender any vested portion of the
phantom stock in exchange for the fair market value of the common stock to which
the  surrendered  phantom  stock  relates.  No awards of phantom stock were made
pursuant to the 1993 plan.

     The Manner of Exercise.  The  committee  may permit the exercise  price for
options  granted  under  the 1993  plan or the  1998  plan to be paid in cash or
shares of common stock,  including  shares of common stock which the participant
received upon the exercise of one or more options. The committee may also permit
the  option  exercise  price  to be paid  by the  participant's  delivery  of an
election  directing  AMCOL to  withhold  shares of common  stock from the common
stock otherwise due upon exercise of the option or any method permitted by law.

     Vesting.  Unless the committee  establishes a different vesting schedule at
the time of grant,  awards  generally vest 40% after two years,  60% after three
years,  80% after four years and 100% after five years.  A  participant  may not
exercise an option or SAR or transfer shares of restricted stock until the award
has vested.

     Under the 1993 plan, if a participant's employment with AMCOL is terminated
due to  retirement  on or  after  the  age of 65 (or 55 with  AMCOL's  consent),
retirement  at any age on account of  disability,  or death,  all Awards  become
fully  vested.  If a  participant's  employment  with or  service  to  AMCOL  is
terminated  for any  other  reason,  any  Awards  that  are not yet  vested  are
forfeited.

     Under the 1998 plan, generally, if a participant's employment with AMCOL or
service on the Board is terminated  due to  retirement,  death,  disability or a
change in control of AMCOL (as determined by the committee),  the committee may,
in its discretion,  accelerate  vesting.  If a participant's  employment with or
service to AMCOL is terminated for any other reason, any awards that are not yet
vested are forfeited.

     Nontransferability.  Awards are not transferable  other than by will or the
laws of descent and distribution or pursuant to a qualified  domestic  relations
order as defined by the Code; provided,  however, that under the 1998 plan NSOs,
SARs and restricted stock are  transferable in the committee's  discretion after
vesting.  During a participant's  lifetime,  his ISOs and any NSOs granted under
the 1993 plan may be exercised only by him.

     Withholding  Tax.  AMCOL shall have the right to withhold in cash or shares
of common  stock with respect to any payments  made to  participants,  any taxes
required by law to be withheld because of such payments.

     Amendment;  Termination. The Board of Directors may amend the 1993 plan and
the 1998 plan at any time,  but may not impair the rights of  participants  with
respect to any  outstanding  awards  without  the consent of  participants,  and
provided  further that the Board of Directors  may not amend the 1993 plan so as
to extend the period in which a participant  may exercise an ISO and may not, in
the absence of shareholder approval,  change the aggregate number of shares that
may be issued  pursuant  to the  options  granted,  change the class of eligible
employees,  adopt any  amendment  affecting  the exercise  price,  or materially
increase benefits accruing to the participants.

     The 1998 plan will  terminate  ten years after its adoption by the Board of
Directors; provided, however, that the Board of Directors may terminate the 1998
plan at any  time.  The  1993  plan was  terminated  effective  March  1,  1998.
Termination  of the 1993 plan and the 1998 plan will not  affect  the  rights of
participants with respect to any awards granted before the termination date.

     Federal Tax Consequences-Incentive Stock Options. Provided a participant is
an employee of AMCOL during the period beginning on the date of grant of the ISO
and ending on the day three  months  before the date of  exercise,  neither  the
grant  nor  the  exercise  of an ISO has an  immediate  tax  consequence  to the
participant  or AMCOL.  If subsequent to the exercise of an ISO the  participant
does not dispose of the acquired common stock within two years after the date of
the grant of the ISO,  or within one year after the date of the  transfer of the
common stock to the participant, or the holding period, AMCOL is not entitled to
a tax deduction,  the participant  realizes no ordinary income,  and any gain or
loss that is realized on the subsequent  sale or taxable  exchange of the common
stock is treated as a long-term  capital gain or loss.  Some tax  deductions and
exclusions,  known  as "tax  preference  items,"  give  rise to an  "alternative
minimum tax" enacted to recapture  some of the tax savings  provided by such tax
preference  items.  The tax benefits  associated  with an ISO are tax preference
items that may affect the  alternative  minimum tax that must be paid by certain
high income individuals.

     If a participant exercises an ISO and disposes of the acquired common stock
before the end of the holding period,  the participant  realizes ordinary income
in an amount equal to the lesser of the fair market value of the common stock on
the date of exercise  over the option price of the common  stock,  or the amount
realized  on  disposition  over the  adjusted  basis of the  common  stock.  Any
remaining gain will be considered capital gain to the participant. AMCOL will be
entitled to a  corresponding  tax  deduction  in the same amount and at the same
time, subject to the limitations imposed by Code Section 162(m).

     Code Section 162(m) denies a deduction to any publicly held corporation for
compensation paid to certain "covered employees" in a taxable year to the extent
that  such  compensation   exceeds   $1,000,000.   "Covered   employees"  are  a
corporation's  chief  executive  officer on the last day of the taxable year and
any  other  individuals  whose  compensation  is  required  to  be  reported  to
shareholders  under the  Exchange  Act by  reason  of being  among the four most
highly  compensated  officers (other than the chief  executive  officer) for the
taxable  year  and  who  are  employed  on the  last  day of the  taxable  year.
Compensation   paid  under   some   qualified   performance-based   compensation
arrangements,  which  (among other  things)  provide for  compensation  based on
pre-established  performance goals established by a compensation  committee that
is composed  solely of two or more  "outside  directors,"  is not  considered in
determining whether a "covered employee's" compensation exceeds $1,000,000.

     Federal  Tax  Consequences-Non-Qualified   Stock  Options.  Generally,  the
recipient of an NSO realizes no taxable income at the time of grant.  Similarly,
AMCOL is not entitled to a deduction with respect to the grant of an NSO.

     Upon the  exercise  of an NSO, a  participant  realizes  income at ordinary
income tax rates. The amount included in income is the excess of the fair market
value  of the  common  stock  acquired  (as of the  date of  exercise)  over the
exercise price.  AMCOL will generally be entitled to a  corresponding  deduction
equal to this amount for AMCOL's taxable year that ends with or includes the end
of  the  participant's  taxable  year  of  income  inclusion,   subject  to  the
limitations imposed by Code Section 162(m).

     A participant's  basis in the common stock acquired upon the exercise of an
NSO will be the exercise price,  plus any amount includable in the participant's
gross  income  upon the  exercise of the NSO.  The gain or loss  realized by the
participant  upon a subsequent  sale or exchange of the shares will be a capital
gain or loss.

     Federal Tax Consequences-Restricted  Stock. Generally,  because of the risk
of  forfeiture  prior to vesting (and  certain  other  restrictions  that may be
imposed  by  the  committee),  no  taxable  income  will  be  recognized  by the
participant upon an award of restricted stock.  Absent an election under Section
83(b) of the Code, the  participant is deemed to receive  ordinary income at the
time  the  restrictions  on  the  restricted  stock  lapse.  The  amount  of the
participant's taxable income is equal to the fair market value of the restricted
stock,  less  any  amount  paid by the  participant  for the  restricted  stock.
However,  a  participant  may make an election  under Section 83(b) of the Code,
within thirty days of the date of issuance of the restricted  stock, to be taxed
at the time of issuance.  Any participant who makes such an election  recognizes
ordinary  income on the date of  issuance of the  restricted  stock equal to its
fair market value at that time,  less any amount paid by the participant for the
restricted stock. The participant's basis in this stock will be increased by the
amount includable in his or her gross income under Code Section 83.

     AMCOL is  entitled  to a deduction  equal to the amount  includable  in the
participant's  gross income for AMCOL's tax year in which or with which ends the
participant's taxable year in which

the amount is included in the participant's  gross income.  AMCOL's deduction is
also subject to the limitations  imposed by Code Section 162(m) mentioned above.
If the  participant  subsequently  disposes  of the  restricted  stock  after it
becomes  substantially  vested,  the participant will recognize  capital gain or
loss equal to the difference  between the amount realized and the  participant's
basis  in the  restricted  stock,  assuming  the  restricted  stock is held as a
capital asset.

     Unless an election  under Code Section 83(b) is made,  dividends  paid to a
participant  while the  restricted  stock remains  subject to  restrictions  are
treated as compensation  for federal income tax purposes.  Any dividends paid on
the restricted  stock subsequent to a Code Section 83(b) election are treated as
dividend income, rather than compensation, for federal income tax purposes.

The Plan Amendments

     In order to implement the plan amendments,  the 1993 plan and the 1998 plan
are  proposed  to be  amended  as set  forth  below.  The  plan  amendments  are
contingent upon the receipt of shareholder approval of the purchase agreement.

     1993  Plan.  The  following  shall be added to the end of Section 12 of the
     1993 plan:

     "Notwithstanding  anything  herein to the contrary,  all nonvested  options
     held by  employees  who are to  become  employees  of  BASF  (the  "Chemdal
     Employees"),  pursuant  to the  Asset and Stock  Purchase  Agreement  dated
     November 22, 1999,  between  AMCOL  International  Corporation,  a Delaware
     corporation, and BASF Aktiengesellschaft, a corporation organized under the
     laws of Germany, shall be immediately fully vested and exercisable,  except
     that any nonvested options held by any Chemdal employees whose options were
     issued under a scheme approved by United Kingdom Inland Revenue will not be
     vested."

     1998  Plan.  The  following  shall be added to the end of Section 11 of the
     1998 plan:

     "Notwithstanding  anything  herein to the contrary,  all nonvested  options
     held by  employees  who are to  become  employees  of  BASF  (the  "Chemdal
     Employees"),  pursuant  to the  Asset and Stock  Purchase  Agreement  dated
     November 22, 1999,  between  AMCOL  International  Corporation,  a Delaware
     corporation, and BASF Aktiengesellschaft, a corporation organized under the
     laws of Germany, shall be immediately fully vested and exercisable,  except
     that any nonvested options held by any Chemdal employees whose options were
     issued under a scheme approved by United Kingdom Inland Revenue will not be
     vested.

     The following  sentences  shall be removed in their entirety from Section 7
     of the 1998 plan:

     "The  aggregate  fair  market  value of the  common  stock  covered by ISOs
     granted  under  the Plan or any  other  stock  option  plan of AMCOL or any
     subsidiary or parent of AMCOL that become exercisable for the first time by
     any employee in any calendar year shall not exceed $100,000.  The aggregate
     fair market value will be determined at the Award Date."

Board Recommendation

     Proxies will be voted for or against approval of the plan amendments to the
1993  plan and the  1998  plan in  accordance  with  the  specifications  marked
thereon,  and will be voted in favor of  approval if no  specification  is made.
Assuming a quorum is present,  the affirmative  vote of a majority of the shares
of common  stock  represented  in person or by proxy at the special  meeting and
entitled to vote thereon is required to adopt the plan amendments.

     The Board of Directors  recommends that you vote "FOR" adoption of the plan
     amendments.

                               SECURITY OWNERSHIP

Security Ownership of Five Percent Beneficial Owners

     The following table sets forth all persons known to be the beneficial owner
of more than 5% of AMCOL's common stock as of December 31, 1999.



                                                                            Number of Shares and
                 Name and Address of Beneficial Owner                       Nature of Beneficial         Percent
                                                                                Ownership (1)           of Class

                                                                                                
Bank of Montreal                                                                3,101,751 (2)            11.52%
   Paul Bechtner Trust
   111 West Monroe Street
   Chicago, Illinois 60690
Everett P. Weaver                                                             3,116,751 (3)(4)           11.58%
   c/o AMCOL International Corporation
   1500 West Shure Drive, Suite 500
   Arlington Heights, Illinois 60004-7803
William D. Weaver                                                             4,155,059 (3)(5)           15.43%
   c/o AMCOL International Corporation
   1500 West Shure Drive, Suite 500
   Arlington Heights, Illinois 60004-7803
<FN>
(1)  Nature of  beneficial  ownership is direct  unless  otherwise  indicated by footnote.  Beneficial  ownership as shown in the
     table arises from sole voting and investment power unless otherwise indicated by footnote.
(2)  Voting and investment power are shared by the trustees of this trust.  See note (3) below.
(3)  Includes  3,101,751 shares held in the Paul Bechtner Trust as to which Messrs.  Everett P. Weaver,  William D. Weaver and the
     Bank of Montreal are co-trustees and share voting and investment power.
(4)  Includes 15,000  shares in a trust as to which voting and investment power are shared with Mr. Weaver's wife.
(5)  Includes  615,570  shares held in a living trust and 56,800  shares in a charitable  remainder  unit trust as to which Mr.
     Weaver exercises  sole voting and  investment  power.  Also  includes  1,600 shares held by his wife,  223,400  shares held in
     his wife's living  trust,  45,000  shares held by his wife as trustee for the benefit of her brother,  and 63,560 shares held
     by his wife for the benefit of their grandchildren as to which Mr. Weaver may be deemed to share voting and investment power.
</FN>


Security Ownership of Directors and Executive Officers

     The  following  table  sets  forth,   as  of  February  21,  2000,   shares
beneficially  owned by: each director and nominee;  the Chief Executive Officer;
the four other most highly compensated executive officers;  and as a group, such
persons and other executive officers.



                                                                    Number of Shares and Nature
                         Beneficial Owner                           of Beneficial Ownership (1)   Percent of Class
                                                                            
Arthur Brown                                                                   28,146                     *
Robert E. Driscoll, III                                                       380,895                   1.38%
John Hughes                                                                   800,709                   2.90%
James A. McClung                                                               4,600                      *
Jay D. Proops                                                                  42,700                     *
C. Eugene Ray                                                                 106,146                     *
Clarence O. Redman                                                             63,708                     *
Paul G. Shelton                                                               416,962                   1.51%
Dale E. Stahl                                                                  28,200                     *
Lawrence E. Washow                                                            433,325                   1.57%
Audrey L. Weaver                                                              651,796                   2.36%
Paul C. Weaver                                                                383,920                   1.39%
Gary L. Castagna                                                               62,825                     *
Frank B. Wright, Jr.                                                           35,251                     *
All of the above and other executive officers as a group (20
persons)                                                                     3,220,884                 11.66%
<FN>
*    Percentage represents less than 1% of the total shares of common stock outstanding as of February 21, 2000.
(1)  Nature of beneficial ownership is set forth on Page _____.
</FN>




                                                          Nature of Beneficial Ownership
                                                      (Shares Held) as of February 21, 2000
                               Directly  In the     In Limited   As          As         By      As Trustee Subject
      Beneficial Owner         or as     Company's  Partnership  Trustee     Custodian  Family  of the     to Options
                               Joint     Savings                 or                     Members Company's  Exercisable
                               Tenants   Plan                    Co-Trustee                     Pension    in 60 Days
                                  (1)    (2)                                                    Plan (4)
                                                                                   
Arthur Brown                     23,400      ---        ---         ---        ---         ---      ---      4,746
Robert E. Driscoll, III           5,000      ---    371,295 (3)   4,000        ---         ---      ---        600
John Hughes                     249,530  103,443        ---         ---        ---      41,328  217,500    188,908
James A. McClung                  1,000      ---        ---         ---        ---         ---      ---      3,600
Jay D. Proops                    24,000      ---     10,000         ---        ---         ---      ---      8,700
C. Eugene Ray                    81,150      ---        ---         ---        ---      20,250      ---      4,746
Clarence O. Redman               25,374   14,934        ---         ---        ---         ---      ---     23,400
Paul G. Shelton                  70,085   22,068        ---         ---      14,492        935  217,500     91,882
Dale E. Stahl                    19,500      ---        ---         ---         ---        ---      ---      8,700
Lawrence E. Washow               79,643   13,448        ---         ---       7,500        ---  217,500    115,234
Audrey L. Weaver                646,070      ---        ---         ---        ---       5,126      ---        600
Paul C. Weaver                  318,876      ---        ---      30,638        ---      31,706      ---      2,700
Gary L. Castagna                  2,733    4,357        ---         ---        ---         ---      ---     55,735
Frank B. Wright, Jr.              1,350   18,284        ---         ---        ---         ---      ---     15,617
All Directors and  Executive  1,568,524  242,595    381,295      34,638      21,992     99,345  217,500    692,177
Officers
<FN>
(1)  Includes shares held in joint tenancy with spouses for which voting rights may be shared.
(2)  With the  exception  of Mr.  Redman's  shares,  which are held in the Clarence O. Redman PC Savings  Plan,  the shares are held
     in AMCOL's Savings Plan.
(3)  Mr. Driscoll is a general partner.
(4)  Messrs. Hughes, Shelton and Washow share voting rights.
</FN>




                                            NAMED OFFICERS' COMPENSATION
Summary Compensation Table

     The Summary Compensation Table below includes, for each of the fiscal years
ended December 31, 1999, 1998 and 1997, individual  compensation for services to
AMCOL and its  subsidiaries  of those persons who were at December 31, 1999: the
Chief Executive Officer;  and the four other most highly  compensated  executive
officers of AMCOL, or collectively, the named officers.


                                                                                       Long-Term       All Other
                                                                                      Compen-sation   Compen-sation
      Name and Principal Position                Annual Compensation (1)(2)              Awards          ($)(4)
                                                                                       Securities
                                                                          Bonus        Underlying
                                              Year       Salary ($)       ($)(3)       Options (#)
                                                                                              
John Hughes                                   1999            475,000       712,500           25,000         41,146
   Chairman and Chief Executive Officer       1998            450,000       257,792           25,000         19,386
                                              1997            400,000       244,650           25,500         24,400
Lawrence E. Washow                            1999            350,000       437,500           21,250         31,280
   President and  Chief Operating             1998            316,667       137,600           18,750         16,578
   Officer                                    1997            229,256       114,449           12,750          8,740
Paul G. Shelton                               1999            275,000       258,090           17,000         21,656
   Senior Vice President and Chief            1998            240,000        92,800           12,500         13,694
   Financial Officer of AMCOL and             1997            215,000       102,354           12,750          8,600
   President of Ameri-Co Carriers, Inc.
   and Nationwide Freight Service, Inc.
Frank B. Wright, Jr.                          1999            215,000       112,698           11,250         15,840
   Vice President of AMCOL and                1998            195,000       101,010           10,750         10,600
   President of Volclay International         1997            175,000        70,000            9,563          3,500
   Corporation
Gary L. Castagna                              1999            200,000       200,000           11,250         18,571
   Vice President of AMCOL and                1998            160,000       109,874           10,750          8,599
   President of Chemdal International         1997            142,645        54,976            6,375          5,706
   Corporation
<FN>
(1)  Includes deferred compensation under AMCOL's Savings Plan and AMCOL's Deferred Compensation Plan.
(2)  The incremental cost of non-cash  compensation and other personal  benefits during any year presented did not exceed the lesser
     of $50,000 or 10% of the total of annual salary and bonus reported for any individual named above.
(3)  The figures in this column reflect bonuses from the Executive  Incentive  Compensation Plan and the Bonus Plan as described in
     the Board Compensation Committee Report on Executive Compensation.

(4)  The figures in this column include  Company  matching  contributions  under AMCOL's  Savings Plan.  During 1997,  AMCOL
     approved a 401(k) restoration plan whereby the matching  contributions for salary deferrals in excess of ERISA limits to
     AMCOL's Savings Plan were credited to AMCOL's Deferred Compensation Plan.
</FN>


Option Grants in Last Fiscal Year

     Shown below is information on grants of incentive  stock options during the
fiscal year ended December 31, 1999 to the named  officers,  which are reflected
in the Summary Compensation Table on Page ___.


                                                                                                       Date
             Name                                   Individual Grants in 1999                            Value
                                  Number of
                                  Securities       % of Total                                            Grant
                                  Underlying         Options                                             Date
                                    Options        Granted to        Exercise        Expiration         Present
                                  Granted (1)     Employees (2)      Price (3)          Date           Value (4)

                                                                                          
John Hughes                              25,000            8.68%            $9.00     02/03/09              $87,494
Lawrence E. Washow                       21,250             7.38             9.00     02/03/09               74,370
Paul G. Shelton                          17,000             5.90             9.00     02/03/09               59,496
Frank B. Wright, Jr.                     11,250             3.91             9.00     02/03/09               39,372
Gary L. Castagna                         11,250             3.91             9.00     02/03/09               39,372
<FN>
(1)  These  incentive  stock options,  or ISOs, were issued pursuant to the 1998
     plan and may not be  exercised  until they vest.  These ISOs vest 40% after
     two years,  60% after three years, 80% after four years and 100% after five
     years,  provided that on death or retirement  under  specified  conditions,
     these ISOs become fully vested. The exercise price may not be less than the
     fair market value of the shares subject to the option on the date of grant.
     The  exercise  price may not be less than 110% of such fair market value if
     the  purchaser is a holder of more than 10% of AMCOL's  outstanding  voting
     securities.
(2)  Based on 288,000 options granted to all employees.
(3)  Fair market value on the date of grant.
(4)  The  estimated  grant date  present  value  reflected in the above table is
     determined  using the  Black-Scholes  model.  The material  assumptions and
     adjustments incorporated in the Black-Scholes model in estimating the value
     of the options  reflected  in the above table  include  the  following:  an
     exercise  price on the option of $9.00,  equal to the fair market  value of
     the  underlying  stock on the date of  grant;  an  option  term of 6 years;
     interest rate of 4.87%  representing  the interest  rates on U.S.  Treasury
     securities on the date of grant with maturity  dates  corresponding  to the
     vesting of the options;  volatility  of 44.90% and dividends at the rate of
     $0.24 per share representing the annualized  dividends paid with respect to
     a share of common stock at the date of grant. There have been no reductions
     to reflect  the  probability  of  forfeiture  due to  termination  prior to
     vesting,  or to reflect the  probability of a shortened  option term due to
     termination of employment prior to the option expiration date. The ultimate
     values of the  options  will depend on the future  market  price of AMCOL's
     stock, which cannot be forecast with reasonable accuracy. The actual value,
     if any, an optionee  will realize upon exercise of an option will depend on
     the excess of the market  value of AMCOL's  common  stock over the exercise
     price on the date the option is exercised.
</FN>


Option Exercises in Last Fiscal Year and Fiscal Year-End Option Values

     Shown below is information  with respect to options  exercised by the named
officers  pursuant to AMCOL'S  option plans during  fiscal 1999 and  unexercised
options granted in fiscal 1999 and prior years under AMCOL's option plans to the
named officers and held by them at December 31, 1999.


                                                               Number of Securities        Value of Unexercised
                                  Shares                      Underlying Unexercised      In-the-Money Options at
            Name                 Acquired        Value         Options at 12/31/99               12/31/99
                                    on         Realized            Exercisable/                Exercisable/
                                 Exercise                         Unexercisable              Unexercisable (1)
                                                                                      
John Hughes                       33,750       $179,759          164,463 / 78,425          $1,305,643 / $407,027
Lawrence E. Washow                20,000        182,333          105,003 / 53,469            785,263 / 281,791
Paul G. Shelton                   17,300        134,489          84,606 / 43,318             766,669 / 232,464
Frank B. Wright, Jr.                --            --              9,135 / 31,278             53,237 / 161,580
Gary L. Castagna                    --            --             50,040 / 29,186             259,340 / 152,664
<FN>
(1)  Based on the closing sale price as quoted on The New York Stock Exchange on that date.
</FN>



Pension Plans
    Remuneration                     Estimated Annual Retirement Benefits Based on Years of Service
                          15 Years       20 Years        25 Years       30 Years        35 Years       40 Years
                                                                                      
      $150,000                $33,750        $45,000         $56,250        $67,500         $78,750        $84,375
        200,000                45,000         60,000          75,000         90,000         105,000        112,500
        250,000                56,250         75,000          93,750        112,500         131,250        140,625
        300,000                67,500         90,000         112,500        135,000         157,500        168,750
        350,000                78,750        105,000         131,250        157,500         183,750        196,875
        400,000                90,000        120,000         150,000        180,000         210,000        225,000
        450,000               101,250        135,000         168,750        202,500         236,250        253,125
        500,000               112,500        150,000         187,500        225,000         262,500        281,250
        550,000               123,750        165,000         206,250        247,500         288,750        309,375



     The above table shows the estimated annual retirement benefits payable on a
straight life annuity basis to participating  employees,  including officers, in
the  earnings  and years of  service  classifications  indicated  under  AMCOL's
retirement plans,  which cover  substantially all of its domestic employees on a
non-contributory  basis.  The estimated  benefits as disclosed below assume that
the plans will be  continued  and that the  employee  will elect to receive  his
pension at normal retirement age. The table above and the estimates below do not
reflect the reduction in an individual's  final monthly  compensation due to the
social security monthly covered  compensation.  This reduction is based upon the
retirement year for a particular individual.



                                           Years of                    Average                    Pension
              Name                         Service                  Compensation                  Benefit
                                                                                         
John Hughes                                   35                      $604,658                    $296,330
Lawrence E. Washow                            21                       375,426                    112,142
Paul G. Shelton                               18                       303,929                     85,007
Frank B. Wright, Jr.                          4                        200,324                       --
Gary L. Castagna                              10                       233,207                     30,044

     The above  table  indicates  the  average  earnings  for the  highest  five
consecutive calendar years and the number of years of credited service under the
pension plans as of December 31, 1999, for each of the named  officers.  Covered
compensation  includes a  participant's  base salary,  commissions,  bonuses and
salary reductions under AMCOL's Savings Plan and Deferred Compensation Plan. Mr.
Wright  has only  been  employed  by AMCOL for four  years,  and does not have a
vested pension benefit.  The average  compensation for Mr. Wright represents the
average paid during his employment with AMCOL.

     Sections  401(a)(17)  and 415 of the  Internal  Revenue  Code of  1986,  as
amended,  limit  the  annual  benefits  that  may be paid  from a  tax-qualified
retirement plan. As permitted by the Employee  Retirement Income Security Act of
1974,  AMCOL has a supplemental  plan that authorizes the payment out of general
funds of AMCOL any benefits  calculated under provisions of AMCOL's pension plan
that may be above  the  limits  under  these  sections.  The  accrued,  unfunded
liability of the supplemental plan at December 31, 1999, was $__________.

Change In Control Arrangements

     Each of the named officers has an agreement with AMCOL which provides that,
upon a change in control of AMCOL, each of them is to be employed by AMCOL for a
period of time after the change in control  (three  years in the case of Messrs.
Hughes,  Washow and  Shelton  and two years for  Messrs.  Wright and  Castagna),
unless there is just cause for his  termination.  A change in control is defined
as a change in legal or  beneficial  ownership  of 51% of AMCOL's  common  stock
within a six-month  period,  or the sale of 90% or more of AMCOL's  assets.  The
sale transaction does not constitute a change of control under these agreements.

     If  termination  occurs  within  the  specified  period for other than just
cause, through either actual termination or constructive termination,  the named
officer will receive  compensation  equal to his current  annual  salary plus an
average of his incentive bonus payments for prior periods, less any compensation
received from the date of the change in control.  These  payments may not exceed
an amount equal to two times,  in the case of Messrs.  Wright and Castagna,  and
three times, in the case of Messrs.  Hughes,  Washow and Shelton, the respective
named  officer's  average  annual  compensation  during the prior five  calendar
years.  Each named  officer  will also  receive  continued  medical,  health and
disability benefits for one year after termination.

     The table below  indicates the maximum amount that would have been paid had
a change of control  occurred and the named  executives were terminated  without
cause prior to December 31, 1999.


                 Name                             Date of Agreement                          Payment
                                                                                      
John Hughes                                         April 1, 1997                           $1,813,974
Lawrence E. Washow                                February 16, 1998                         1,126,278
Paul G. Shelton                                     April 1, 1997                            911,772
Frank B. Wright, Jr.                               December 1, 1999                          400,648
Gary L. Castagna                                  February 17, 1998                          466,414

     The agreements do not require the named officers to seek other  employment,
but any  payments or benefits  will be reduced by up to 50% by any  compensation
earned from other employment.  For a period of years (three years in the case of
Messrs.  Hughes,  Washow and Shelton and two years in the case of Messrs. Wright
and Castagna) from the date of termination of employment  with or without cause,
before or after a change in control,  each of the named  officers is  prohibited
from engaging in any business that competes with AMCOL and from  soliciting  any
employee of AMCOL.


Director Compensation
Type of Compensation                                                             Cash             Stock Options
                                                                                             
Annual Retainer                                                                $14,700             2,000 shares
Board Meeting Attendance Fee                                                    $1,470
Annual Retainer for Committee Chairman                                          $1,969
Committee Meeting Attendance Fee                                                 $525


     Directors who are also full-time  employees of AMCOL are not paid for their
services as directors or for attendance at meetings.

     Pursuant to the 1998 plan, each of the  non-employee  directors was granted
2,000 options at $13.00 per share in 1999.

Compensation Committee Report on Executive Compensation

     AMCOL's  mission  is  to  supply  high-quality   performance  products  and
innovative  technologies  for  absorbent  polymers,  minerals and  environmental
markets   worldwide.   To  accomplish  this   objective,   AMCOL  has  developed
comprehensive  compensation  strategies  that emphasize  maximizing  shareholder
value and  growth in sales  and  earnings.  The  compensation  program  has been
designed  to  reinforce  and  support  AMCOL's  business  goals  and to help the
organization both attract and retain high quality executive talent.

     The Compensation  Committee of the Board of Directors is comprised of seven
non-employee  directors whose  objectives are to approve the design,  assess the
effectiveness  of  and  administer  compensation  programs  in  support  of  the
compensation  policies.  The  Compensation  Committee also  evaluates  executive
performance  and  reviews  and  approves  all  salary   arrangements  and  other
remuneration for the officer group.

Compensation Committee Philosophy

     The Compensation Committee is committed to implementing and administering a
compensation  program that supports and underscores  AMCOL's mission and values.
The policies underlying the Compensation  Committee's compensation decisions are
enumerated more fully below:

     Compensation  opportunities  should strengthen  AMCOL's ability to attract,
     retain,  and encourage the growth and  development  of the highest  caliber
     executive talent upon whose efforts the success of AMCOL largely depends.

     A substantial  portion of pay for senior  executives should be comprised of
     at-risk, variable compensation whose payout is dependent on the achievement
     of specific corporate and individual performance  objectives.  In addition,
     the at-risk components of pay will have a significant  equity-based element
     to ensure  appropriate  linkage between executive  behavior and shareholder
     interests.

     The committee  considers  stock  ownership by management to be an important
     means  of  linking  management's  interests  with  those  of  shareholders.
     Effective  February 1999, AMCOL adopted stock ownership  guidelines for its
     corporate and subsidiary officers. The amount of stock required to be owned
     increases  with the level of  responsibility  of each  executive,  with the
     Chief  Executive  Officer  expected  to own stock  with a value of at least
     equal to four times base salary.  Shares that the executives have the right
     to acquire  through the  exercise of stock  options are not included in the
     calculation of stock ownership for purposes of these guidelines. Executives
     are  expected  to reach  their  respective  stock  ownership  goals  over a
     three-year period.

     Each  compensation  component  targets pay  opportunities  at the median of
     compensation   paid  to   executives   included   in  AMCOL's   comparative
     compensation peer group. AMCOL's comparative  compensation group is not the
     same as the  companies  that  make up the  peer  group in the  stock  price
     performance graph included in this proxy statement.  In order to provide an
     appropriate basis for compensation  analysis, a group larger than the stock
     price graph's peer group was used; note, however, that a significant number
     of the peer group  companies are included in the  comparative  compensation
     group.

Components of Compensation

     AMCOL's total compensation program consists of several components,  each of
which plays a role in supporting  overall business goals and pay philosophy.  In
assessing the competitiveness of AMCOL's senior executive compensation programs,
available salary data consisting of general manufacturing  companies is used for
comparison  purposes.  Pay  decisions  are  based  upon pay data for  comparable
positions.  The total  compensation  program  consists  of base  salary,  annual
incentives and long-term incentives.

Base Pay

     Base  salaries  are set at median  levels  (50th  percentile)  relative  to
competitive  market levels for comparable  positions based upon available survey
data from general  manufacturing and durable and nondurable goods  manufacturing
industries.  The Compensation  Committee  annually reviews each executive's base
salary and makes  adjustments  based upon levels of  responsibility,  breadth of
knowledge,  internal  equity  issues,  as well as market pay  practices.  Salary
adjustments are based primarily upon individual performance,  which is evaluated
based on individual contributions to AMCOL.

     As  reflected  in the  Summary  Compensation  Table on Page ___,  the Chief
Executive  Officer's  base salary was  increased in 1999 by $25,000  (5.6%).  In
arriving at Mr. Hughes' base salary, the Compensation  Committee  considered his
individual performance and his long-term  contributions to the financial success
of AMCOL.  The  Committee  also  compared Mr.  Hughes' base salary with the base
salaries of chief executive officers from appropriate salary surveys.

Annual Incentives

     The  Executive   Incentive   Compensation  Plan,  or  the  incentive  plan,
underscores AMCOL's  pay-for-performance  philosophy by rewarding executives for
meaningful  contributions toward predetermined  financial performance goals. The
annual incentive  opportunity for the Chief Executive  Officer,  Chief Operating
Officer and Chief  Financial  Officer is based upon  performance of AMCOL,  as a
whole,  compared to targets for return on capital and earnings per share.  These
executives  do not receive  bonuses until AMCOL  achieves a designated  level of
return on capital and earnings per share.  In the case of the other  executives,
their  bonus is  determined  pursuant  to formulas  tailored  for each  business
segment with an emphasis on the return on capital and earnings of the particular
business  segment to which the executive  devotes the majority of his time.  The
Chief  Executive  Officer  was paid a bonus of $712,500  for the 1999  financial
performance of AMCOL.

     In  connection  with  the  proposed  sale  of  AMCOL's  SAP  business,  the
Compensation  Committee has granted  bonuses to certain of AMCOL's  employees in
recognition  of their  contribution  to the  development  and success of the SAP
business.  These bonuses are contingent  upon the closing of the sale of the SAP
business.  John  Hughes,  our Chief  Executive  Officer  was  granted a bonus of
$_________.  In addition,  the following  executive officers were also granted a
bonus in  connection  with the proposed  sale of the SAP  business:  Lawrence E.
Washow,   President  and  Chief  Operating  Officer,  Paul  G.  Shelton,  Senior
Vice-President and Chief Financial Officer,

and  Gary L.  Castagna,  Vice  President  of  AMCOL  and  President  of  Chemdal
International Corporation.  In addition, seven key employees of the SAP business
were granted  bonuses.  In order to be eligible to receive  these  bonuses,  the
relevant  employees may not terminate  their  employment with AMCOL prior to the
closing of the sale of the SAP business.

Long-Term Incentives

     Long-term  incentives are provided  annually in the form of incentive stock
options,  or ISOs.  Options  under  AMCOL's 1998  Long-Term  Incentive  Plan are
granted by the Compensation Committee. ISOs are granted at a price not less than
the fair  market  value of the  common  stock on the date of grant.  Hence,  the
options will only have value when and if the stock price  appreciates  above the
grant date price.  ISOs are the only long-term  incentive  compensation  vehicle
currently used by AMCOL.

     The option  program  serves to focus  executives  on long-term  shareholder
value  creation  and to  foster  an  ownership  mentality  among  the  executive
management  team.  In  keeping  with  AMCOL's  commitment  to  provide  a  total
compensation   package  that  focuses  on  at-risk  pay  components,   long-term
incentives  will  continue  to  comprise  a large  portion  of the  value  of an
executive's total compensation package.  Currently,  approximately 15% to 20% of
the value of total compensation is comprised of equity incentives.

     When  determining  award sizes, the  Compensation  Committee  considers the
executive's  responsibility  level, prior experience,  historical award data and
ability to positively  impact  long-term  shareholder  value.  The  Compensation
Committee also strives to deliver market competitive  long-term  incentive award
opportunities to executives based on the dollar value of the award delivered.

     In 1999, the Chief Executive  Officer  received  options to purchase 25,000
shares with an exercise price of $9.00, as provided in the Option Grant Table on
Page __.  The  Compensation  Committee  believes  the equity  incentive  program
provides a strong link between management behavior and shareholder interests.

                             Compensation Committee
                             Jay D. Proops, Chairman
                                  Arthur Brown
                             Robert E. Driscoll, III
                                  C. Eugene Ray
                               Clarence O. Redman
                                  Dale E. Stahl
                                Audrey L. Weaver

Stock Performance Graph

     The following graph sets forth a five-year  comparison of cumulative  total
returns for: AMCOL (which trades on The New York Stock  Exchange);  S&P SmallCap
600 Index;  and a custom peer group of publicly  traded  companies,  or the peer
group.

     Using the  assistance of  consultants,  AMCOL selected the peer group which
consists of companies whose businesses,  sales sizes, market  capitalization and
stock trading volumes were similar to that of AMCOL.

     All returns were calculated  assuming dividend  reinvestment on a quarterly
basis.  The  returns  of each  company  in the peer  group  have  been  weighted
according to market capitalization.

     The  peer  group  consists  of  the  following  companies:   Calgon  Carbon
Corporation,  ChemFirst,  Inc., Lilly Industries Inc.,  McWhorter  Technologies,
Inc., Mississippi Chemical Corporation, Oil-Dri Corporation of America and Zemex
Corporation.

                Comparison of Five-Year Cumulative Total Return*
             AMCOL, S&P SmallCap 600 and Self-Determined Peer Group
[GRAPHIC OMITTED]



                                12/95   12/96   12/97   12/98   12/99
                                                 
AMCOL International             102.6   115.7   177.7   112.7   187.76
S&P SmallCap                    129.9   157.6   197.8   195.2   219.16
Self-Determined Peer Group      116.1   133.5   135.2   109.6    86.1

*    Assumes  $100  invested  on  December  31,  1994,  in  AMCOL  International
     Corporation CommonStock, S&P SmallCap 600 and Self-Determined Peer Group.

*    Total return assumes reinvestment of dividends on a quarterly basis.

                    INDEPENDENT CERTIFIED PUBLIC ACCOUNTANTS

     A  representative  of  KPMG  LLP,  AMCOL's  independent   certified  public
accountants,  will be present  at the  special  meeting,  will be  afforded  the
opportunity to make a statement, and will be available to respond to appropriate
questions.

                              SHAREHOLDER PROPOSALS

     Shareholder  proposals  intended to be included in AMCOL's proxy  statement
and form of proxy  relating  to, and to be presented  at, the annual  meeting of
shareholders of AMCOL to be held in 2001, must be received by AMCOL on or before
December __, 2000.

     If a shareholder  intends to present a proposal at the 2001 annual  meeting
of  shareholders  but does not seek  inclusion of that proposal in AMCOL's proxy
statement for that meeting,  such shareholder must deliver written notice of the
proposal  to AMCOL in  accordance  with the  requirements  of  AMCOL's  By-Laws.
Generally,  such proposals must be delivered to AMCOL between ___________,  2001
and ________, 2001. All proposals or notices should be directed to

the Secretary of AMCOL at One North Arlington, 1500 West Shure Drive, Suite 500,
Arlington Heights, Illinois 60004-7803.

                                  OTHER MATTERS

     In addition to the business  described above,  there will be remarks by the
Chairman and Chief  Executive  Officer and a general  discussion  period  during
which shareholders will have an opportunity to ask questions about AMCOL.

     As of the date of this  proxy  statement,  AMCOL's  management  knows of no
matter not specifically  referred to above as to which any action is expected to
be taken at the special meeting. It is intended, however, that the persons named
as proxies will vote the proxies,  insofar as they are not otherwise instructed,
regarding  such other matters and the  transaction of such other business as may
be  properly  brought  before  the  meeting,  as seems to them to be in the best
interest of AMCOL and its shareholders.

                             ADDITIONAL INFORMATION

     AMCOL files annual,  quarterly and special  reports,  proxy  statements and
other information with the SEC. You may read and copy any reports, statements or
other  information  that  AMCOL  files at the SEC's  public  reference  rooms in
Washington,  D.C., New York, New York and Chicago, Illinois. Please call the SEC
at 1-800-SEC-0330 for further  information about the public reference rooms. Our
filings are also available from commercial  document  retrieval  services and at
the Internet web site maintained by the SEC at http://www.sec.gov.

     The SEC allows us to "incorporate by reference" information into this proxy
statement,  which means that we can  disclose  important  information  to you by
referring you to another document filed separately with the SEC. The information
incorporated by reference is deemed to be part of this proxy  statement,  except
for any information  superseded by information  contained directly in this proxy
statement.  This proxy statement incorporates by reference AMCOL's Annual Report
on Form 10-K for the  fiscal  year  ended  December  31,  1999,  which  contains
important information about us and our financial condition.

     We are also  incorporating  by reference  additional  documents that we may
file with the SEC between the date of this proxy  statement  and the date of the
special meeting.  These include periodic  reports,  such as Quarterly Reports on
Form 10-Q and Current Reports on Form 8-K, as well as proxy statements.

     If you are a  shareholder,  you may have  previously  received  some of the
documents incorporated by reference. You may still obtain copies of any of these
documents from AMCOL or the SEC or the SEC's Internet web site described  above.
Documents  incorporated  by  reference  are  available  from us without  charge,
excluding all exhibits unless we have specifically  incorporated by reference an
exhibit in this proxy  statement,  by requesting them in writing or by telephone
from AMCOL at AMCOL International  Corporation,  One North Arlington,  1500 West
Shure Drive, Suite

500,  Arlington  Heights,  Illinois  60004-7803,   Telephone:   (847)  394-8730,
Attention:  Investor  Relations.  Please request  documents by April __, 2000 to
ensure receipt before the special meeting.

                                        By Order of the Board of Directors,

                                        Clarence O. Redman
                                        Secretary

Arlington Heights, Illinois
April __, 2000

                         AMCOL INTERNATIONAL CORPORATION

           Special Meeting of Shareholders to be held on May ___, 2000



     As a shareholder of AMCOL  International  Corporation  (the  "Company"),  I
acknowledge  receipt  of  Notice  of  Special  Meeting  and  accompanying  Proxy
Statement and appoint John Hughes, Lawrence E. Washow and Paul C. Weaver, or any
one of them, to vote all shares of stock of AMCOL International Corporation that
I am entitled  to vote,  at the special  meeting of  shareholders  to be held on
___________, May ___, 2000, at 10:00 a.m., Chicago time, at _______________, and
any adjournment thereof.

1.   To  consider  and vote upon a proposal  to approve the sale by AMCOL of its
     superabsorbent   polymers   business,   or  the  SAP   business,   to  BASF
     Aktiengesellschaft,  or BASF,  pursuant  to the terms of an Asset and Stock
     Purchase Agreement dated November 22, 1999. The purchase agreement provides
     for the transfer to BASF of the following:

     -    all of the shares of capital  stock of AMCOL's  indirect  subsidiaries
          Chemdal Corporation and Chemdal Asia Ltd.; and
     -    all  other  assets of AMCOL and its  designated  subsidiaries  related
          primarily to the SAP business.


FOR AGAINST  ABSTAIN 2. To consider and vote upon a proposal to approve  certain
amendments to AMCOL's 1993 Stock Plan and 1998 Long-Term  Incentive Plan, or the
plan  amendments.  FOR AGAINST  ABSTAIN THIS PROXY SHALL BE VOTED IN  ACCORDANCE
WITH THE INSTRUCTIONS  GIVEN, AND IN THE ABSENCE OF SUCH INSTRUCTIONS,  SHALL BE
VOTED FOR EACH OF THE PROPOSALS.  IF OTHER BUSINESS IS PRESENTED AT THE MEETING,
THIS PROXY SHALL BE VOTED IN ACCORDANCE WITH THE BEST JUDGMENT OF THE PROXIES ON
THOSE MATTERS.

           This Proxy Is Solicited on Behalf of the Board of Directors


     You are urged to mark,  sign and return your proxy promptly in the enclosed
self-addressed, postage-paid (if mailed in the United States) envelope.

                              Dated ________________, 2000


                              _________________________________________
                              SIGNATURE OF SHAREHOLDER

                              _________________________________________
                              SIGNATURE OF SHAREHOLDER

               When signing the proxy,  please date it and take care to have the
               signature agree to the  shareholder's  name as it appears on this
               side of the proxy.  If shares are  registered in the names of two
               or  more   persons,   each   person   should   sign.   Executors,
               administrators,  trustees and  guardians  should so indicate when
               signing.

               CONTROL  NUMBER VOTE BY TELEPHONE  Call Toll Free On a Touch Tone
               Telephone 1-888-___-____ There is NO CHARGE to you for this call.
               The Board of Directors  encourages  you to use this  inexpensive,
               time saving method to vote.

Your telephone vote authorizes the named proxies to vote your shares in the same
manner as if you marked, signed and returned your proxy card.

You will be asked to enter a Control Number,  which is located in the box on the
left side of this form.

Proposal 1: To vote FOR, press 1; AGAINST, press 9; ABSTAIN, press 0
            WHEN ASKED, PLEASE CONFIRM YOUR VOTE BY PRESSING 1-
            THANK YOU FOR VOTING.

Proposal 2: To vote FOR, press 1; AGAINST, press 9; ABSTAIN, press 0
            WHEN ASKED, PLEASE CONFIRM YOUR VOTE BY PRESSING 1-
            THANK YOU FOR VOTING.


             If you vote by telephone, DO NOT mail back your proxy.