EXHIBIT 10.3


    LETTER AGREEMENT REGARDING RECEIVABLES PURCHASE AGREEMENT

          THIS  LETTER AGREEMENT, dated as of April 15, 2003  (as
amended,  restated or otherwise modified from time to  time,  the
"Letter Agreement") refers to the RECEIVABLES PURCHASE AGREEMENT,
dated  as  of December 11, 1998 (as amended, amended and restated
or  otherwise  modified  from  time to  time,  the  "Agreement"),
between and among CROMPTON CORPORATION (as successor by merger to
Crompton & Knowles Corporation), as the Initial Collection Agent,
CROMPTON  MANUFACTURING  COMPANY, INC. (f/k/a  Uniroyal  Chemical
Company,  Inc.  ("Crompton  Manufacturing")),  UNIROYAL  CHEMICAL
EXPORT  LTD.  ("Export"),  DAVIS  STANDARD  CORPORATION,  PARATEC
ELASTOMERS  LLC  ("Paratec"), CROMPTON  CORPORATION,  CROMPTON  &
KNOWLES  COLORS,  INCORPORATED  ("Colors")  and  CROMPTON   SALES
COMPANY,  INC.  ("Sales") (each a "Seller" and collectively,  the
"Sellers"),   CROMPTON  &  KNOWLES  RECEIVABLES  CORPORATION,   a
Delaware  corporation ("Buyer"), CROMPTON EUROPE B.V., a  private
company with limited liability incorporated under the laws of The
Netherlands ("Crompton Europe"), CROMPTON B.V., a private company
with  limited  liability  incorporated  under  the  laws  of  The
Netherlands  ("Crompton  B.V.")  and  ABN  AMRO  BANK  N.V.  (the
"Agent").

                      W I T N E S S E T H:

          WHEREAS, certain of the Sellers listed on the signature
pages  hereto and the Buyer have previously entered into and  are
currently  party to the Agreement pursuant to which  the  Sellers
agreed to sell to Buyer, and Buyer agreed to buy from each of the
Sellers,  all of the Receivables and Related Assets generated  by
each  such Seller, except for Crompton Europe and Crompton  B.V.,
from  which  Buyer  agreed  to buy such Receivables  and  Related
Assets on April 15, 2003;

          WHEREAS,   pursuant   to  the  Agreement,   Buyer   has
transferred to ABN AMRO Bank N.V. as agent for Amsterdam  Funding
Corporation (as assignee of Windmill Funding Corporation) and the
Committed Purchasers all of Buyer's right, title and interest  in
and to the Agreement, including, without limitation, interests in
the Receivables sold to Buyer pursuant thereto;

          WHEREAS, Crompton Europe and Crompton B.V. each wish to
sell,  transfer  and  assign Receivables  and  Related  Purchased
Assets  on April 15, 2003 to Buyer as though each were  a  Seller
under the Agreement and Buyer wishes to purchase Receivables  and
Related  Purchased Assets from Crompton Europe and Crompton  B.V.
as  though  each were a Seller under the Agreement, all effective
as of April 15, 2003;

          NOW,  THEREFORE,  for good and valuable  consideration,
the receipt and sufficiency of which are hereby acknowledged, the
parties hereto, intending to be legally bound, agree as follows:

     SECTION 1.   Defined Terms.  Unless otherwise amended by the
terms  of  this  Agreement, terms used in this  Letter  Agreement
shall have the meanings assigned in the Agreement.

     SECTION 2.     Adoption of Agreement.

     (a)  Each of the parties hereto agrees that, effective as of
April  15,  2003  (the  "Effective Date"),  Crompton  Europe  and
Crompton B.V. each agrees to sell, transfer, assign, set over and
otherwise  convey  to Buyer, and Buyer agrees  to  purchase  from
Crompton Europe and Crompton B.V., on April 15, 2003, Receivables
and  other Related Purchased Assets originated by Crompton Europe
and  Crompton  B.V.  that exist on such date  on  the  terms  and
conditions  set  forth  in the Agreement,  a  copy  of  which  is
attached as Exhibit A hereto.

      (b)  From and after the Effective Date, each of the parties
hereto  shall  consider  the term "Seller"  to  include  each  of
Crompton  Europe and Crompton B.V.  In addition, from  and  after
the  Effective  Date, each of Crompton Europe and  Crompton  B.V.
hereby  agrees  to  be bound by all of the terms  and  conditions
applicable to a Seller contained in the Agreement and  the  other
Transaction Documents. In connection with the execution  of  this
Letter  Agreement, Crompton Europe, Crompton B.V. and  the  Buyer
agree  to deliver each of the documents set forth in Section  4.1
of   the  Agreement,  to  the  extent  that  such  documents  are
applicable.

       (c)  In connection with the execution and delivery of this
Letter Agreement, each of Crompton Europe and Crompton B.V. hereby
makes, with respect to itself, the representations and warranties
set forth in Section 5.1 of the Agreement. Each of Crompton
Europe and Crompton B.V. is, and at all times since its
incorporation, incorporated under the laws of The Netherlands.
The registered office of Crompton Europe is located at Ankerweg,
18, 1041AT Amsterdam, The Netherlands.  The registered office of
Crompton B.V. is located at Spaarndamseweg, 466, P.O. Box 577,
2003RN Haarlem, The Netherlands.  Each of Crompton Europe and
Crompton B.V. has not been located anywhere else since its
incorporation. Each of Crompton Europe and Crompton B.V. has no
trade names and has not conducted business under any other name
since its incorporation.

     SECTION 3.     Execution in Counterparts, Effectiveness.  This
Letter Agreement may be executed by the parties hereto in several
counterparts,  each  of which shall be executed  by  the  parties
hereto  and  be  deemed  an  original  and  all  of  which  shall
constitute together but one and the same agreement.

    SECTION 4.     Governing Law.  THIS AGREEMENT SHALL BE CONSTRUED
IN ACCORDANCE WITH THE LAWS OF THE STATE OF NEW YORK, INCLUDING 5-
1401 AND 5-1402 OF THE GENERAL OBLIGATIONS LAW, BUT OTHERWISE
WITHOUT REFERENCE TO CONFLICT OF LAW PRINCIPLES, AND THE
OBLIGATIONS, RIGHTS AND REMEDIES OF THE PARTIES HEREUNDER SHALL
BE DETERMINED IN ACCORDANCE WITH THE LAWS OF THE STATE OF NEW
YORK.
                       [Signatures Follow]

     IN  WITNESS  WHEREOF,  the  Initial  Collection  Agent,  the
Sellers  that,  as of the date hereof, may sell  Receivables  and
Related  Purchased  Assets  to  Buyer,  Buyer,  Crompton  Europe,
Crompton B.V., and the Agent have caused this Letter Agreement to
be   executed   by  their  respective  officers  thereunto   duly
authorized as of the day and year first above written.

                         CROMPTON CORPORATION (successor-in-
                         interest to CK Witco),
                         as Initial Collection Agent and as
                         Seller

                         By:
                         Title:

                         Address:  One American Lane
                             Greenwich, Connecticut 06831-2559

                         DAVIS STANDARD CORPORATION, as Seller

                         By:
                         Title:

                         Address:  1 Extrusion Drive
                                   Pawcatuck, Connecticut 06379

                         CROMPTON SALES COMPANY, INC., as Seller

                         By:
                         Title:

                         Address:  One American Lane
                          Greenwich, Connecticut 06831-2559


                         CROMPTON EUROPE B.V., as Seller

                         By:
                         Title:



                         By:
                         Title:

                         Address:  Ankerweg, 18
                                   1041AT Amsterdam,
                                   The Netherlands


                         CROMPTON B.V., as Seller

                         By:
                         Title:

                         Address:  Spaarndamseweg, 466
                                   P.O. Box 577
                                   2003RN Haarlem,
                                   The Netherlands



                         CROMPTON & KNOWLES RECEIVABLES
                         CORPORATION, as the Buyer

                         By:
                         Title:

                         Address:  Benson Road
                                   Middlebury, Connecticut 06749

                         ABN AMRO BANK N.V., as Agent

                         By:
                         Title:

                         By:
                         Title:

                         Address:  Structured Finance, Asset
                                   Securitization
                                   135 South LaSalle Street
                                   Chicago, Illinois 6-674-9135
                                   Attention: Administrator-
                                   Amsterdam
                                   Telephone:(312) 904-6263
                                   Telecopy: (312) 904-6376



                            EXHIBIT A

                 RECEIVABLES PURCHASE AGREEMENT