1
                                 FIRST AMENDMENT
                                       TO
                            ASSET PURCHASE AGREEMENT
                                  BY AND AMONG
                               THE CLOROX COMPANY,
                       A&M PRODUCTS MANUFACTURING COMPANY,
                        THE CLOROX PET PRODUCTS COMPANY,
                            THE CLOROX SALES COMPANY,
                       THE CLOROX COMPANY OF CANADA, LTD.,
                                       AND
                         OIL-DRI CORPORATION OF AMERICA

      THIS FIRST AMENDMENT TO ASSET PURCHASE AGREEMENT, is made as of December
13, 2002 (this "Amendment"), by and among The Clorox Company, a Delaware
corporation ("CLOROX"), A&M Products Manufacturing Company, a Delaware
corporation ("A&M"), The Clorox Pet Products Company, a Texas corporation
("CPP"), The Clorox Sales Company, a Delaware corporation ("CSC"), and The
Clorox Company of Canada, Ltd., a Canadian corporation ("CCC" and, together with
Clorox, A&M, CPP and CSC, "SELLERS"), and Oil-Dri Corporation of America, a
Delaware corporation ("BUYER").

                              W I T N E S S E T H:

      WHEREAS, Buyer and Sellers have previously entered into that certain Asset
Purchase Agreement dated as of November 19, 2002 (the "Agreement"); and

      WHEREAS, Buyer and Sellers desire to amend the Agreement in certain
respects, as provided herein.

      NOW, THEREFORE, in consideration of the premises and the other agreements
contained herein and in the Agreement, the parties hereto hereby agree as
follows:

Section 1. AMENDMENT TO AGREEMENT.

1.1        The date of December 10, 2002 referred to in Sections 1.2(a), 4.4,
           7.1(D), and 7.1(F) of the Agreement is hereby changed in each such
           section to December 13, 2002.

1.2        The following is hereby added to the Agreement as new paragraph (d)
           of Section 1.1:

           "(d)  Payments from Customers,  Customer  Deductions and
           Unsaleables.

           (1)  PAYMENTS FROM CUSTOMERS. The parties recognize that any Seller
                or Buyer (or Buyer's Designees) may receive customer payments
                intended for the other party. Payments from customers shall be
                credited to the party who issued the invoice(s) in question. If
                the underlying invoice(s) pertaining to a particular payment
                cannot be determined, they will be applied first to amounts
                outstanding under Sellers' outstanding invoices and the

 2
                remainder to Buyer's if received prior to January 15, 2003 and
                they will be applied first to Buyer's outstanding invoices and
                the remainder to Sellers' thereafter.

           (2)  CUSTOMER DEDUCTIONS. Similarly, deductions taken by a customer
                shall be the responsibility of the party to whose invoice(s) the
                deduction relates. The parties will endeavor to determine which
                invoice(s) a given deduction relates to if it is not clear. If
                the underlying invoice(s) pertaining to a particular deduction
                cannot be determined, the responsibility for such deductions
                will be borne by Sellers if the deduction is received prior to
                January 15, 2003 and by Buyer thereafter.

           (3)  UNSALEABLES. Unsaleable claims made by a customer shall be the
                responsibility of the party to whose invoice(s) the claim
                relates. The parties will endeavor to determine which invoice(s)
                a given claim relates to if it is not clear. For those claims
                not readily identifiable, the parties agree that such claims
                made by customers prior to January 15, 2003 shall be the
                responsibility of Sellers and such claims made thereafter shall
                be the responsibility of Buyer. After January 15, 2003, Buyer
                will submit one statement per month to the Sellers verifying
                unsaleable claims that are the responsibility of the Sellers and
                that, individually or in the aggregate, exceed $10,000.

           (4)  BASKET. The adjustments and payments made and costs incurred
                under this Section shall not be subject to nor charged against
                the $120,000 indemnification basket in Section 8.2(b) hereof.

           (5)  ADJUSTING PAYMENTS. The parties will make adjusting payments to
                one another as necessary to carry out the purposes of this
                Section.

           (6)  GOOD FAITH DEALING. Neither party will invite or induce
                customers to take deductions or make claims for unsaleables.

1.3        Sub-paragraph (viii) of Section 1.2(b) is hereby amended and restated
           to read in its entirety as follows:

           "(viii) A&M, CPP, CSC and CCC each shall deliver to Buyer a certified
           copy of the resolutions duly adopted by its Board of Directors (or,
           in the case of CCC, a certified copy of the resolutions duly adopted
           by its shareholder) authorizing the execution, delivery and
           performance of this Agreement and each of the other Transactional
           Agreements to which it is a party, and the consummation of the
           transactions contemplated by this Agreement and the Transactional
           Agreements to which it is a party;"

           Sub-paragraph (xv) of Section 1.2(b) is hereby amended to replace the
           reference to "A&M" therein with "Clorox".

1.4        The following sub-paragraph is hereby added to Section 1.2(b):

 3

           "(xvi) A&M and Buyer shall enter into an agreement relating to
           purchase of Blue Clay Chip for Fresh Step Coarse Clay Cat Litter from
           Buyer."

1.5        SECTIONS 2.9(A)-(C) of the Agreement are hereby amended and restated
           to read in their entirety as follows:

           "2.9  UNPATENTED  MINING  CLAIMS,  MILL SITES,  SURFACE
           RIGHTS AND WATER RIGHTS.

(a)        The Unpatented Mining Claims and Mill Sites identified on SCHEDULE
           2.9(A) contain the information specified below for each such
           Unpatented Mining Claim and Mill Site and are, to the knowledge of
           Sellers, all of the Unpatented Mining Claims and Mill Sites owned by
           Sellers in the vicinity of the Taft Facility.

           ----------------------------------------------------------
             Name of      Date of     County Recording   BLM Serial
              Claim      Location           Data             No.
           ----------------------------------------------------------
                                     Date  Book   Page
           ----------------------------------------------------------

(b)        With  respect to the  Unpatented  Mining  Claims and the Mill
           Sites,  subject  only  to  the  paramount  title  of the
           United  States,  to the  knowledge  of Sellers:  (i) the
           Unpatented  Mining  Claims  and Mill Sites were laid out
           and  monumented  consistent  with industry  practices on
           federal  lands which were open to entry under the Mining
           Law of  1872  at the  time of  location;  (ii)  location
           notices and  certificates  were  properly  recorded  and
           filed with appropriate governmental  authorities;  (iii)
           (with  respect to the  Unpatented  Mining  Claims  only)
           affidavits  of  assessment  work,  notices  of intent to
           hold, or verified  reports were timely and duly recorded
           and  filed  with  appropriate  agencies  for each of the
           Unpatented   Mining   Claims   for  each  year  for  all
           assessment   years  during  which  the   performance  of
           assessment  work was  required by law and for which such
           affidavit,  notice or report was  required  to be filed,
           except as set forth in  Schedule 2.9(b);  (iv)  payments
           of  rental   fees  or   maintenance   fees  in  lieu  of
           assessment  work were  timely  paid for each  assessment
           year  when  such  payments  were  required  by  Law  and
           affidavits  thereof  were timely filed with and recorded
           in the local  offices  of the  appropriate  Governmental
           Body insofar as required or allowed by  applicable  Law,
           except  as set  forth in  Schedule 2.9(b);  (v) the work
           and expenditures  described in said affidavits,  notices
           and reports  were in fact made and  performed  in a good
           faith effort to satisfy  assessment  work  requirements;
           (vi) the  Unpatented  Mining  Claims  and Mill Sites are
           free and clear of liens,  production royalties,  advance
           royalties,  rents, bonuses or bonus payments or finder's
           fees in  favor  of any  Person;  (vii)  Sellers  have no
           knowledge  of   conflicting   claims  or  activities  or
           possession  by third  parties  in  anticipation  of such
           claims,  except  as set  forth in  SCHEDULE 2.9(B);  and
           (viii)  a  predecessor-in-interest  of  one or  more  of
           Sellers  located each such  Unpatented  Mining Claim and
           Mill Site under the Mining Law of 1872.

 4

(c)        To Sellers' knowledge, Sellers have not received any notice
           stating that A&M does not have surface rights of ingress
           and egress and use of the surface of the Unpatented Mining
           Claims for mining and related purposes."

1.6        Section 2.10(a) of the Agreement is hereby amended by deleting the
           reference to "June 30, 2002" therein and replacing it with "June 25,
           2002."

1.7        SECTION 2.11 of the Agreement is hereby amended by deleting the
           second sentence thereof and replacing it with the following:

           "The amount and value of Inventory being sold hereunder is at a level
           in amount and fair market value at least equal to one million two
           hundred thousand dollars ($1,200,000), with a three percent (3%)
           allowance for unsalable or slow-moving Inventory, as determined by a
           count as of the Closing Date."

1.8        SECTION 4.3(J)   of  the  Agreement  is  hereby  amended  and
           restated to read in its entirety as follows:

           "Sellers shall cause the accrued benefits of each Transferring
           Employee under Sellers' qualified retirement plans as of the Closing
           Date to become fully vested. In no event would Buyer, during the
           ninety (90) day period following the Closing, terminate without cause
           more than twenty-five (25) Transferring Employees."

1.9        Section 5.10 of the Agreement is hereby amended to delete item 1 from
           the list of optional Table A items therein.

1.10       SECTION 8.3(A) of the Agreement is hereby amended and restated to
           read in its entirety as follows:

           "Buyer shall hold harmless and indemnify the Seller Indemnitees from
           and against, and shall compensate and reimburse the Seller
           Indemnitees for, any Damages that are suffered or incurred by the
           Seller Indemnitees or to which the Seller Indemnitees may otherwise
           become subject at any time (regardless of whether or not such Damages
           relate to any Third Party Claim) and that arise directly or
           indirectly from (i) any Breach of any of the representations or
           warranties made by Buyer in this Agreement or in the Closing
           Certificate of Buyer, (ii) any Breach of any covenant or agreement of
           Buyer, or any Buyer Designee, contained in this Agreement or any
           other Transactional Agreement (other than the Jonny Cat Copack
           Termination Agreement and the Fresh Step Coarse Clay Amendment) to
           the extent not waived by Sellers, (iii) any claims for severance with
           respect to Transferring Employees arising out of Buyer's termination
           of any Transferring Employee after the Closing Date, or (iv) any
           Third Party Claims or threatened claims against Sellers arising out
           of the actions or inactions of Buyer or any Buyer Designee after the
           Closing Date with respect to the Assets or the operation of the
           Business after the Closing Date."

1.11       SECTION 11.4(A)  of  the  Agreement  is  hereby  amended  and
           restated to add the following to said Section:

 5

           "Subject to the sharing requirement above, Buyer shall pay Kern
           County real property transfer taxes at Closing, and Sellers shall pay
           all California personal property transfer and use taxes at Closing.
           It is anticipated that, on or prior to the Closing, Sellers will pay
           in excess of their share of Transfer Taxes hereunder and will pay in
           excess of their portion of real property taxes with respect to the
           Real Property and the Mining Claims; accordingly, Buyer agrees to
           reimburse Sellers for such overpayment promptly after Closing. Buyer
           and each Buyer Designee that will acquire inventory from Sellers
           pursuant to this Agreement shall deliver to Sellers a copy of its
           California sales or use tax resale or exemption certificates
           indicating Buyer and each such Buyer Designee is exempt from sales or
           use tax that may become payable in connection with the sale of
           inventory from Sellers to Buyer or such Buyer Designee, as well as
           the resale registration numbers of Buyer and each applicable Buyer
           Designee from each state in which Inventory is located. The Canadian
           Buyer Designee and Buyer each shall provide Sellers with such
           Canadian Goods and Services registration evidence and Ontario resale
           registration evidence as Sellers may reasonably require.
           Notwithstanding anything herein to the contrary, Buyer shall be
           solely liable for payment of all sales and/or use tax payable on the
           purchase of Inventory from Sellers in each state for which such
           certificates and registration numbers are not provided to Seller at
           Closing, and Buyer shall be solely liable for any taxes payable as a
           result of the failure of Buyer and/or any Buyer Designee to have any
           of the above-referenced Canadian registrations."

1.12       SECTION 12.6  of the Agreement is hereby amended and restated
           to read in its entirety as follows:

           "This Agreement shall be binding upon, and inure to the benefit of,
           the parties hereto and their respective successors and assigns. No
           party may assign its rights or delegate its duties and obligations
           under this Agreement without the prior written consent of the other
           parties, which may be withheld in the sole and absolute discretion of
           such party; provided, however, Buyer shall have the right at any time
           prior to the Closing to assign this Agreement (and all, or any
           portion, of its rights, remedies, duties and obligations hereunder),
           without the consent of Sellers, to one or two Affiliates of Buyer
           under Buyer's Control (each a "BUYER DESIGNEE"). Any permitted
           assignment by a party of its rights under this Agreement shall not
           relieve such party of its covenants and obligations hereunder. Any
           reference to Buyer in this Agreement shall, to the extent applicable,
           also be deemed a reference to the applicable Buyer Designee, except
           where in the context of this Agreement such use would not be
           appropriate. Except for the provisions of SECTION 8 hereof and
           Buyer's acknowledgment and agreement regarding manufacturing,
           know-how, processes and formula in SECTION 1.1, none of the
           provisions of this Agreement is intended to provide any rights or
           remedies to any Person other than the parties to this Agreement and
           their respective successors and permitted assigns (if any). Without
           limiting the generality of the foregoing, no employee or creditor of
           Clorox or any Clorox Subsidiary shall have any rights under this
           Agreement or under any of the other Transactional Agreements."
 6

1.13       The definition of "Assumed Contracts" in EXHIBIT A is hereby amended
           and restated to read in its entirety as follows:

           "ASSUMED CONTRACTS. "Assumed Contracts" shall mean (a) the Contracts
           identified in SCHEDULE 2.13, as supplemented, (b) all purchase orders
           existing as of the Closing and relating to goods ordered by Sellers
           for use exclusively at the Taft Facility in connection with the
           Business, and (c) all obligations of continued performance under
           executory sales orders for Jonny Cat Product existing as of the
           Closing."

1.14       The definition of "Encumbrance" in EXHIBIT A is hereby amended and
           restated to read in its entirety as follows:

           "ENCUMBRANCE. "Encumbrance" shall mean any lien, pledge,
           hypothecation, charge, mortgage, deed of trust, or security
           interest."

1.15       The definition of "Mining Claims" in EXHIBIT A is hereby amended and
           restated to read in its entirety as follows:

           "MINING CLAIMS. "Mining Claims" shall mean (a) all BLM and other
           governmental and third party claims and leases identified on EXHIBIT
           C attached hereto and made a part hereof, whether or not located and
           held by Sellers under the Mining Law of 1872, as amended, 30 U.S.C.
           ss.21 et seq. (the "MINING LAW OF 1872"), which relate to the Assets
           (collectively, the "UNPATENTED MINING CLAIMS"), (b) all mill site
           claims or reductions related thereto (the "MILL SITES") and (c) all
           related claims, refunds, causes of action, choses in action, rights
           of recovery and rights of set-off of every kind and nature arising as
           of or by reason of events occurring subsequent to Closing."

1.16       The parties hereby agree to the Asset Allocation Statement set forth
           hereto as Exhibit "A."

Section 2. MISCELLANEOUS.

2.1        The Agreement is incorporated herein by this reference.

2.2        Except as otherwise set forth herein, the Agreement shall remain in
           full force and effect and the parties shall have all the rights and
           remedies provided thereunder.

2.3        The provisions hereof shall be binding upon and inure to the benefit
           of the parties hereto and their respective successors and assigns.

2.4        This Amendment may be executed and delivered in several counterparts
           with the intention that all such counterparts, when taken together,
           shall constitute one and the same instrument.

 7

2.5        One or more counterparts of this Amendment may be delivered by
           facsimile, with the intention that delivery by such means shall have
           the same effect as delivery of an original counterpart thereof.

2.6        The section headings contained in this Amendment are for convenience
           of reference only and in no way shall modify any of the terms or
           provisions hereof or of the Agreement.

2.7        Capitalized terms used but not defined herein shall have the meanings
           assigned to such terms in the Agreement.

                            [SIGNATURE PAGE FOLLOWS]



 8

      IN WITNESS WHEREOF, the parties hereto have entered into this Amendment as
of the day and year first above written.

 BUYER                                  SELLERS
 OIL-DRI CORPORATION OF AMERICA, a      THE CLOROX COMPANY, a Delaware
 Delaware corporation                   corporation


 By:                                    By:
    ----------------------------           -----------------------
 Name:                                  Name:
      --------------------------             ---------------------
 Title:                                 Title:
       -------------------------              --------------------

                                        A&M PRODUCTS MANUFACTURING
                                        COMPANY, a Delaware corporation

                                        By:
                                           -----------------------

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

                                        Title:
                                              --------------------



                                        THE CLOROX PET PRODUCTS COMPANY,
                                        A Texas corporation

                                        By:
                                           -----------------------

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

                                        Title:
                                              --------------------


                                        THE CLOROX SALES COMPANY, a
                                        Delaware corporation
                                        By:
                                           -----------------------

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

                                        Title:
                                              --------------------


                                        THE CLOROX COMPANY OF CANADA,
                                        LTD., a Canadian corporation

                                        By:
                                           -----------------------

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

                                        Title:
                                              --------------------