Exhibit 4.7


FIRST AMENDMENT dated as of December 21, 2001, (this
"Amendment") to the AMENDED AND RESTATED 364-DAY CREDIT
AGREEMENT dated as of October 28, 1999, as amended and
restated in the form of the Amended and Restated Credit
Agreement as of September 24, 2001 (as amended, restated,
Supplemented or otherwise modified from time to time, the
"364-Day Credit Agreement"), among CROMPTON CORPORATION
(formerly known as CK Witco Corporation) (the "Company");
the Eligible Subsidiaries referred to therein; the BANKS
referred to therein; JPMORGAN CHASE BANK (formerly known
as THE CHASE MANHATTAN BANK) ("JPMORGAN"), as Syndication
Agent; CITICORP USA, INC. (as successor to Citibank, N.A.
in its capacity as Administrative Agent), as
Administrative Agent; and BANK OF AMERICA, N.A. and
DEUTSCHE BANC ALEX. BROWN INC. (formerly known as DEUTSCHE
BANK SECURITIES INC.), as Co-Documentation Agents.

          WHEREAS, the Company, the Eligible Subsidiaries,
the Banks, the Co-Documentation Agents, the Syndication
Agent and the Administrative Agent are parties to the 364
Day Credit Agreement;

          WHEREAS, pursuant to the 364-Day Credit
Agreement, the Banks have made and agreed to make certain
loans to the Borrowers; and

          WHEREAS, the Company has requested that certain
provisions of the 364-Day Credit Agreement, the 364-Day
Subsidiary Guarantee Agreement and the 364-Day Indemnity,
Subrogation and Contribution Agreement be modified in the
manner provided in this Amendment;

          WHEREAS, the Banks whose signatures appear
below, constituting the Required Banks, hereby agree to
amend the 364-Day Credit Agreement, which amendment shall
become effective upon satisfaction of the conditions
precedent set forth herein, the 364-Day Subsidiary
Guarantee Agreement and the 364-Day Indemnity, Subrogation
and Contribution Agreement;

          WHEREAS, the Banks whose signatures appear
below, constituting the Required Banks, desire to appoint
Citicorp USA, Inc., as Administrative Agent and as
Collateral Agent , and the Loan Parties desire to consent
to such appointments;

          NOW, THEREFORE, in consideration of the mutual
agreements herein contained and other good and valuable
consideration, the sufficiency and receipt of which are
hereby acknowledged, the parties hereto hereby agree as
follows:

          SECTION 1.  Defined Terms.  Capitalized terms
used but not defined herein have the meanings assigned to
them in the 364-Day Credit Agreement and the Security
Agreement.

        SECTION 2.  Amendment of Section 1.01.  (a)
Section 1.01 of the 364-Day Credit Agreement is hereby
amended by inserting the following defined terms in their
correct alphabetical order:

          "Amendment and Restatement" means the Amended
and Restated Credit Agreement dated as of September 24,
2001, among the Company; the Eligible Subsidiaries
referred to therein; the Banks referred to therein;
JPMorgan, as Syndication Agent; the Administrative Agent;
and the CoDocumentation Agents, amending and restating the
Original Credit Agreement.

          "Amendment No. 1" means the First Amendment
dated as of December 21, 2001, to this Agreement.

          "Amendment No. 1 Effective Date" means the date
on which Amendment No. 1 became effective.

          "CNTA Baskets" means the baskets under the
Indentures equal to 10% of Consolidated Net Tangible
Assets under which obligations and Indebtedness (as
defined in the Indentures) not otherwise permitted by
Section 3.3 of the Crompton Indenture and Section 1008 of
the Witco Indenture are permitted to be secured and sale
and leaseback transactions not otherwise permitted by
Section 3.4 of the Crompton Indenture and Section 1009 of
the Witco Indenture are permitted to be entered into
without the ratable securing of the Company's obligations
under the Indentures.

          "Collateral" has the meaning set forth in the
Security Agreement.

          "Collateral Agent" means Citicorp USA, Inc., in
its capacity as collateral agent for the Banks.

"Collateral Release" has the meaning set forth in Section
11.12.

          "Collateral Requirement" means, at any time,
that (a) the Security Agreement (or a supplement thereto)
shall have been duly executed and delivered by the Company
and by each of the Designated Subsidiaries existing at
such time, (b) each Grantor shall have executed and
delivered to the Collateral Agent (i) an appropriate UCC
financing statement, identifying the Collateral of such
Grantor subject to the Lien of the Security Agreement and
naming the Collateral Agent as secured party, for filing
in the central filing office of the jurisdiction of
organization of such Grantor and (ii) any other financing
statements or continuation statements required under
applicable law or requested by the Collateral Agent to
ensure that the Security Agreement creates a valid and
perfected security interest in all the Collateral in which
a security interest can be perfected under the Uniform
Commercial Code as in effect in each applicable
jurisdiction; provided, that no fixture filings shall be
required with respect to any portion of the Collateral
constituting fixtures.

          "Consolidated Net Tangible Assets" means the
total consolidated assets of the Company and its
Subsidiaries (as such term is defined in the Indentures),
less (a) current liabilities of the Company and its
Subsidiaries; (b) all depreciation and valuation reserves
and all other reserves (except (x) reserves for
contingencies which have not been allocated to any
particular purpose, and (y) deferred credits, including
deferred federal and foreign income taxes and deferred
investment tax credits) of the Company and its
Subsidiaries; (c) the net book amount of all intangible
assets of the Company and its Subsidiaries, including the
unamortized portions of such items as goodwill,
trademarks, trade names, patents and debt discount and
expense less debt premium; and (d) appropriate adjustments
on account of minority interests of other Persons holding
stock in the Subsidiaries.

          "Crompton Indenture" means the Indenture dated
as of March 1, 2000, between the Company (then known as CK
Witco Corporation) and Citibank, N.A., as trustee.

          "Crompton Indenture Obligations" means the
obligations of the Company under the Crompton Indenture.

          "Designated Subsidiaries" means all Domestic
Subsidiaries of the Company other than Domestic
Subsidiaries that, taken together, (a) have assets with an
aggregate book value equal to less than 15% of the
aggregate book value of the total assets of the Company
and the Domestic Subsidiaries and (b) have revenues for
the most recently ended fiscal quarter equal to less than
15% of the total revenues of the Company and the Domestic
Subsidiaries for such fiscal quarter.

          "Documentation Agent" means Bank of America,
N.A., in its capacity as documentation agent for the Banks
hereunder, and its successors in such capacity.

          "Equity Interest" means shares of capital stock,
partnership interests, membership interests in a limited
liability company, beneficial interests in a trust or
other equity ownership interests in a Person.

          "Financial Officer" of any Person shall mean the
chief financial officer, the treasurer or the principal
accounting officer of such Person.

          "Grantors" means the Company and the Subsidiary
Grantors.

          "Indentures" means the Crompton Indenture and
the Witco Indenture.

          "Obligations" has the meaning set forth in the
Security Agreement.

          "Original Credit Agreement" means the 364-Day
Credit Agreement, dated as of October 28, 1999, among the
Company (then known as CK Witco Corporation), the Eligible
Subsidiaries referred to therein, the Banks parties
thereto, The Chase Manhattan Bank, as Syndication Agent,
Citibank, N.A., as Administrative Agent, and the Co-
Documentation Agents named therein, as amended by the
First Amendment thereto, dated as of October 26, 2000.

          "Perfection Certificate" means a certificate in
the form of Exhibit N or any other form approved by the
Collateral Agent.

        "Release Date" has the meaning set forth in
Section 11.12 hereof.

          "Release Conditions" has the meaning set forth
in Section 11.12 hereof.

          "Secured Parties" means the Administrative
Agent, the Collateral Agent, each Bank, the Issuing Bank
and each other person to which any of the Obligations is
owed.

          "Security Agreement" means a Security Agreement
substantially in the form of Exhibit M hereto.

          "Security Documents" means the Security
Agreement, the Subsidiary Guarantee Agreement and the
Indemnity, Subrogation and Contribution Agreement.

          "Subsidiary Grantors" has the meaning set forth
in the Security Agreement.

          "Type", when used in reference to any Loan or
Borrowing, refers to whether the rate of interest on such
Loan, or on the Loans comprising such Borrowing, is
determined by reference to the Adjusted London Interbank
Offered Rate, the Adjusted CD Rate or the Base Rate.

          "Witco Indenture" means the Indenture dated as
of February 1, 1996, between the Company (then known as
Witco Corporation) and The Chase Manhattan Bank, as
trustee.

          (b)  Section 1.01 of the 364-Day Credit
Agreement is hereby further amended by deleting the
definitions of "Administrative Agent", "Agents", "Co-
Documentation Agents", "Five-Year Credit Agreement",
"Fixed Rate Loans", "Loan Documents", "Loan Parties" and
"Money Market LIBOR Loan" in their entirety and replacing
them as follows:

          "Administrative Agent" means Citicorp USA, Inc.,
in its capacity as administrative agent for the Banks
hereunder, and its successors in such capacity.

          "Agents" means the Administrative Agent, the
Syndication Agent, the Collateral Agent and the
Documentation Agent, and "Agent" means any of the
foregoing.

          "Five-Year Credit Agreement" means the Five-Year
Credit Agreement dated as of October 28, 1999 (as amended,
restated, supplemented or otherwise modified from time to
time) among the Company, the Eligible Subsidiaries named
therein, Citicorp USA, Inc. (as successor to Citibank,
N.A. in its capacity as Administrative Agent), as
administrative agent, the banks named therein, JPMorgan
Chase Bank (formerly known as The Chase Manhattan Bank),
as syndication agent, and Bank of America, N.A. and
Deutsche Bank Alex. Brown Inc. (formerly known as Deutsche
Bank Securities Inc.), as co-documentation agents.

          "Fixed Rate Loans" means CD Loans or Euro-Dollar
Loans or Money Market Loans (excluding Money Market LIBOR
Loans bearing interest at the rate applicable to Base Rate
Loans pursuant to Section 8.01) or any combination of the
foregoing.

          "Loan Documents" means this Agreement and the
Security Documents.

        "Loan Parties" means the Company, the other
Borrowers, the Subsidiary Guarantors and the Subsidiary
Grantors.

          "Money Market LIBOR Loan" means a loan to be
made by a Bank pursuant to a LIBOR Auction (including such
a loan bearing interest at the rate applicable to Base
Rate Loans pursuant to Section 8.01).

          (c)  Each reference in the 364-Day Credit
Agreement and the Exhibits thereto to Bank of America,
N.A. and Deutsche Banc Alex. Brown Inc. (formerly known as
Deutsche Bank Securities Inc.) is hereby replaced with a
reference to Bank of America, N.A.

          (d)  Each reference to "Co-Documentation Agents"
in the 364-Day Credit Agreement is hereby replaced with a
reference to "Documentation Agent".

          SECTION 3.  Amendment of Article 2.  (a) Section
2.02 of the 364-Day Credit Agreement is hereby amended by
deleting the word "and" prior to clause (iv) thereof,
deleting the "." at the end of clause (iv) thereof and
replacing it with ", and" and inserting immediately
following clause (iv) thereof the following:

          "(v) executed by an assistant treasurer or a
Financial Officer.";

        (b)  Section 2.03(b) of the 364-Day Credit
Agreement is hereby amended by inserting immediately
following the words "Exhibit E hereto" the following:

          "and executed by an assistant treasurer or a
Financial Officer.";

          (c)  Section 2.06 of the 364-Day Credit
Agreement is hereby amended to read as follows:

          "SECTION 2.06.  Maturity of Loans.  Each
     Committed Loan included in any Borrowing shall
     mature, and the principal amount thereof shall be due
     and payable, on the Termination Date.  In the case of
     any Committed Loan that is a Euro-Dollar Loan, CD
     Loan or Base Rate Loan, upon the expiration of any
     Interest Period applicable thereto, the Borrower may
     continue such Loan as a Loan of the same Type or
     convert the Loan into a Loan of a different Type, in
     each case in accordance with the notice requirements
     set forth in Section 2.02 and subject to the  minimum
     principal amount requirements set forth in Section
     2.01; provided, that, no Loan may be continued or
     converted with an Interest Period ending after the
     Termination Date.  If the Borrower shall not have
     given timely notice to continue or convert any Loan,
     such Loan shall automatically be converted into or
     continued as a Base Rate Loan with an Interest Period
     of 30 days' duration.  Each Money Market LIBOR Loan
     and Money Market Absolute Rate Loan shall mature, and
     the principal amount thereof shall be due and
     payable, on the expiration of the Interest Period
     applicable thereto.";

        (d)  Section 2.07(a) of the 364-Day Credit
Agreement is hereby amended to read as follows:

          "(a) Each Base Rate Loan shall bear interest on
     the outstanding principal amount thereof, for each
     day from the date such Loan is made until it becomes
     due, at a rate per annum equal to the sum of the Base
     Rate Margin for such day plus the Base Rate for such
     day.  Such interest shall be payable for each
     Interest Period on the last day thereof.  Any overdue
     principal of or interest on any Base Rate Loan shall
     bear interest, payable on demand, for each day until
     paid at a rate per annum equal to the sum of 2% plus
     the rate otherwise applicable to Base Rate Loans for
     such day.";

         (e)  Section 2.07(e) is hereby amended by
replacing the last sentence thereof with:

          "Any overdue principal of or interest on any
Money Market Loan shall bear interest, payable on demand,
for each day until paid at a rate per annum equal to the
sum of 2% plus the rate applicable to Base Rate Loans for
such day.";

        (f)  Section 2.11(a) of the 364-Day Credit
Agreement is hereby amended by inserting the words "rate
applicable to" prior to the words "Base Rate" and
inserting the word "Loans" immediately after the words
"Base Rate" in the parenthetical thereto;

        (g)  Section 2.11(f) of the 364-Day Credit
Agreement is hereby amended to read as follows:

          "(f) In the event and on each occasion that the
     Company or any Subsidiary shall complete any Asset
     Sale, the Company shall (i) promptly deliver to the
     Administrative Agent a certificate executed by a
     Financial Officer of the Company describing the
     assets sold and setting forth the aggregate amount of
     Net Cash Proceeds received or to be received and the
     calculation thereof, and (ii)  if the Required
     Leverage Ratio is greater than 3.50 to 1.00, not
     later than the third Business Day following any
     receipt by the Company or any Subsidiary of Net Cash
     Proceeds with respect to such Asset Sale, ratably
     prepay Loans and loans outstanding under the Five-
     Year Credit Agreement in accordance with the
     outstandings thereunder in an amount equal to 100% of
     such Net Cash Proceeds.";

        (h)  Section 2.18(a) of the 364-Day Credit
Agreement is hereby amended by inserting immediately
following the words "Issuing Bank" in the first sentence
the following:

        "and signed by an assistant treasurer or a
Financial Officer"; and

          SECTION 4.  Amendment of Article 4.  (a) Section
4.02 of the 364-Day Credit  Agreement is hereby amended by
adding immediately prior to the period at the end thereof
the following words:

               ", except Liens created under the Loan
     Documents";

               (b)  Section 4.09 of the 364-Day Credit
     Agreement is hereby amended by deleting the words
     "the Company's Material Subsidiaries" and inserting
     "each Loan Party" in their place;

               (c)  Section 4.10 of the 364-Day Credit
     Agreement is hereby amended by deleting the words
     "The Company" therein and replacing them with the
     following "Each of the Loan Parties"; and

                (d)  Article 4 of the 364-Day Credit
     Agreement is hereby amended by adding the following
     Sections at the end of that Article:

               "SECTION 4.13.  Collateral; Security
     Agreement.  (a) The Collateral is not subject to any
     Liens other than Liens permitted by Section 5.08.  On
     the Amendment No. 1 Effective Date, the aggregate
     amount of the Debt and other obligations (other than
     the Obligations) secured by Liens on the Collateral
     does not exceed $50,000,000, none of which has used
     any portion of the CNTA Baskets.

               (b)  The Security Agreement, when executed
     and delivered by the parties thereto, will be
     effective to create in favor of the Collateral Agent,
     for the ratable benefit of the Secured Parties,
     legal, valid and enforceable security interests in
     the Collateral (as defined in the Security
     Agreement), and upon the filing of the financing
     statements referred to in the definition of
     "Collateral Requirement", such security interests
     will constitute fully perfected security interests in
     all right, title and interest of each Grantor in such
     Collateral, in each case prior and superior to the
     rights of any other Person other than Liens permitted
     under Section 5.08 of each of this Agreement and the
     Five-Year Credit Agreement.  On the Amendment No. 1
     Effective Date and at all times thereafter when any
     Bank has any Commitment or LC Exposure hereunder or
     any LC Disbursement remains unreimbursed or any of
     the Obligations remains unpaid, the Collateral
     Requirement will have been satisfied.

               SECTION 4.14.  CNTA Basket.  The CNTA
     Baskets are fully available on the Amendment No. 1
     Effective Date to permit the securing of the
     Obligations as and to the extent provided in the
     Security Agreement."

          SECTION 5.  Amendment of Article 5.  (a)
Section 5.01(c) of the 364-Day Credit Agreement is hereby
amended by deleting the word "and" prior to clause (ii),
replacing it with a comma and inserting immediately before
the semicolon at the end thereof the following:

               "and (iii) setting forth a calculation in
     reasonable detail of Consolidated Net Tangible Assets
     and of the CNTA Baskets as of the date of the balance
     sheet included in such financial statements";

        (b)  Section 5.07(a) of the 364-Day Credit
Agreement is deleted in its entirety and replaced with the
following:

          "(a) The Company will not permit the Leverage
     Ratio at any time during any period beginning on a
     date set forth below and ending on a date immediately
     preceding the date listed immediately below such
     beginning date (if any) to be in excess of the ratio
     set forth below opposite such initial date:

     Date                     Ratio

October 1, 2001         5.25 to 1.00


October 1, 2002         4.75 to 1.00


January 1, 2003         4.00 to 1.00


January 1, 2004         3.50 to 1.00


     provided, if the Company and the Subsidiaries have
     received at least $100,000,000 in Net Cash Proceeds
     from Asset Sales after the Amendment No. 1 Effective
     Date, the Leverage Ratio required to be maintained at
     any time thereafter shall be the greater of (i) 3.50
     to 1.00 and (ii) the appropriate covenant level as
     set forth above minus 0.25 for each $100,000,000
     increment above the initial $100,000,000 in Net Cash
     Proceeds received from Asset Sales after the
     Amendment No. 1 Effective Date.";


        (c)  Section 5.07(b) of the 364-Day Credit
Agreement is hereby amended by deleting it in its entirety
and replacing it with the following:

               "(b) The Company will not permit the
     Interest Coverage Ratio for any four-fiscal quarter
     period ending on or after any date set forth below
     and prior to the date listed immediately below such
     beginning date (if any) to be less than the ratio set
     forth below opposite such initial date:
          Date                     Ratio

December 31, 2001          2.50 to 1.00
December 31, 2002          2.75 to 1.00
December 31, 2003          3.00 to 1.00";

          (d)  Section 5.07 of the 364-Day Credit
Agreement is hereby amended by the insertion at the end
thereof of the following new paragraph (c):


               "(c)   The Company will not permit the book
     value of the Collateral (excluding any Collateral
     that shall be subject to any Lien other than the Lien
     of the Security Agreement) to be less at any time
     than $350,000,000.";


          (e)  Section 5.08 of the 364-Day Credit
Agreement is hereby amended by deleting the word "or" at
the end of clause (g) thereof deleting the "." at the end
of clause (h) and adding the following language
immediately after clause (h) thereof:


     "; or (i) Liens created under the Security
Agreement.";


          (f)  Section 5.11 of the 364-Day Credit
Agreement is hereby deleted in its entirety and replaced
with the following:


          "SECTION 5.11.  Additional Subsidiaries.  The
     Company will ensure at all times that all Designated
     Subsidiaries are (or become within 30 Domestic
     Business Days of being formed or acquired or becoming
     Designated Subsidiaries) Subsidiary Guarantors."; and


          (g)  Article 5 of the 364-Day Credit Agreement
is hereby amended by adding the following sections at the
end thereof:


               "SECTION 5.13.  Prohibition on Guarantees
     by Crompton Manufacturing Company, Inc.  The Company
     will not cause and will not permit Crompton
     Manufacturing Company, Inc. (formerly known as
     Uniroyal Manufacturing Company, Inc.) or any
     successor to guarantee any Debt of the Company other
     than the Obligations.


               SECTION 5.14.  Covenants Relating to
     Collateral.  (a)  The Company will, and will cause
     each Subsidiary Grantor to, execute, acknowledge and
     deliver to the Collateral Agent any and all further
     completed UCC financing statements, and take all such
     further actions, as may be required under any
     applicable law or reasonably requested by the
     Collateral Agent or the Required Banks to ensure that
     the Collateral Requirement will be and remain
     satisfied at all times, all at the expense of the
     Company.  The Company also agrees to provide to the
     Collateral Agent from time to time upon reasonable
     request evidence reasonably satisfactory to the
     Collateral Agent as to the perfection and priority of
     the Liens created or intended to be created by the
     Security Agreement.

      (b)  The Company will furnish to the Collateral
      Agent written notice at least five business days
prior to the effectiveness of any change (i) in any Loan
Party's corporate name, (ii) in the jurisdiction of
organization of any Loan Party, (iii) in any Loan Party's
identity or corporate structure, (iv) in any Loan Party's
organizational identification number or (v) in any Loan
Party's Federal Taxpayer Identification Number.  The
Company agrees not to effect or permit any change referred
to in the preceding sentence unless all filings that are
required in order for the Collateral Agent to continue at
all times following such change to have a valid, legal and
perfected security interest in all the Collateral have
been made.  The Company also agrees promptly to notify the
Collateral Agent if any material portion of the Collateral
is damaged or destroyed.

               (c)  Each year, at the time of delivery of
     annual financial statements with respect to the
     preceding fiscal year pursuant to clause (a) of
     Section 5.01, the Company will deliver to the
     Collateral Agent a certificate executed by a
     Financial Officer of the Company setting forth the
     information required pursuant to the Perfection
     Certificate or confirming that there has been no
     change in such information since the date of the
     Perfection Certificate delivered on the Amendment No.
     1 Effective Date or the date of the most recent
     certificate delivered pursuant to this Section.

               SECTION 5.15.  Use of CNTA Baskets.  The
     Company will not and will not permit any of its
     Subsidiaries to enter into any transaction other than
     the transactions provided for in this Agreement, the
     Five-Year Credit Agreement and the Security Agreement
     that would utilize any portion of the CNTA Baskets.

               SECTION 5.16.  Amendment of Indentures.
     The Company will not amend either of the Indentures
     in a manner adverse to the rights or interests of the
     Banks."

          SECTION 6.  Amendment of Article 6.  Section
6.01 of 364-Day Credit Agreement is hereby amended by (a)
replacing the word "or" immediately before the words "any
Material Subsidiary" with a comma and inserting the words
"or any Designated Subsidiary" immediately after the words
"any Material Subsidiary" in clause (g) thereof;

          (b) replacing the word "or" immediately before
     the words "any Material Subsidiary" with a comma and
     inserting the words "or any Designated Subsidiary"
     immediately after the words "any Material
     Subsidiary", in each case, in both instances  in
     clause (h) thereof;

          (c)  replacing the word "or" immediately before
     the words "any Material Subsidiary" with a comma and
     inserting the words "or any Designated Subsidiary"
     immediately after the words "any Material Subsidiary"
     in clause (j) thereof;

          (d)  deleting the word "or" at the end of clause
     (k) thereof, inserting the word "or" at the end of
     paragraph (l) thereof and inserting the following
     immediately below such paragraph (l):

               "(m)  at any time beginning with the
     Amendment No. 1 Effective Date and prior to the
     Collateral Release, any Lien purported to be created
     under the Security Agreement with respect to any
     portion of the Collateral shall cease to be, or shall
     be asserted by any Loan Party not to be, (i) a valid,
     perfected Lien on such Collateral, or (ii) a first
     priority Lien (except to the extent of Liens
     permitted under Section 5.08 and in existence on the
     Amendment No. 2 Effective Date), in each case except
     as a result of the sale, lease, transfer or other
     disposition of the applicable Collateral in a
     transaction permitted under the Loan Documents or
     pursuant to Section 11.12".

          SECTION 7.  Amendment of Article 7.  Section
7.05 of the 364-Day Credit Agreement is hereby amended by
inserting the following at the end thereof:

               "It is understood and agreed that the
     Collateral Agent shall not be responsible to any
     Lender for the due execution, legality, validity,
     enforceability, genuineness, sufficiency or value of
     or the perfection or priority of any lien or security
     interest created or purported to be created under or
     in connection with, this Agreement or any instrument
     or document furnished pursuant hereto.".

          SECTION 8.  Amendment of Article 8.  Section
8.01(c) of the 364-Day Credit Agreement is hereby amended
by inserting the words "rate applicable to" prior to the
words "Base Rate" and inserting the word "Loans"
immediately after the words "Base Rate" in clause (ii)
thereto.

          SECTION 9.  Amendment of Article 11.  (a)
Section 11.01 of the 364-Day Credit Agreement is hereby
amended by:

          (i) inserting in clause (b) immediately after
     the words "Administrative Agent" the words "or the
     Collateral Agent"; and

          (ii) inserting the following sentence at the end
     thereof:  "Each notice required to be given by the
     Administrative Agent or by the Required Banks under
     this Agreement, other than any notice under Article 2
     or Section 11.06, shall simultaneously be given to
     the Collateral Agent";

          (b)  Section 11.03 of the 364-Day Credit
Agreement is hereby amended by inserting the following
clauses (c) and (d) thereof:

          "(c)  To the extent permitted by applicable law,
     no Borrower shall assert, and each hereby waives, any
     claim against any Indemnitee, on any theory of
     liability, for special, indirect, consequential or
     punitive damages (as opposed to direct or actual
     damages) arising out of, in connection with, or as a
     result of, this Agreement or any agreement or
     instrument contemplated hereby, any Loan or Letter of
     Credit or the use of the proceeds thereof.

          (d)  All amounts due under this Section shall be
     payable promptly after written demand therefor.";

          (c)  Section 11.04 of the 364-Day Credit
Agreement is hereby amended by

               (i) deleting the title of that Section and
     replacing it with "Right of Set-off; Sharing of Set
     offs." and

               (ii)  inserting immediately prior to the
     first sentence thereof the following:

               "(a)  If an Event of Default shall have
     occurred and be continuing, each Bank and each of its
     Affiliates is hereby authorized at any time and from
     time to time, to the fullest extent permitted by law,
     to set off and apply any and all deposits (general or
     special, time or demand, provisional or final) at any
     time held and other obligations at any time owing by
     such Bank or Affiliate to or for the credit or the
     account of the Company or any Loan Party against any
     of and all the obligations of the Borrowers now or
     hereafter existing under this Agreement held  by such
     Bank, irrespective of whether or not such Bank shall
     have made any demand under this Agreement and
     although such obligations may be unmatured.  The
     rights of each Bank under this Section 11.04(a) are
     in addition to other rights and remedies (including
     other rights of setoff) which such Bank may have.

          (b)";

          (d)  Section 11.05 of the 364-Day Credit
Agreement is amended by deleting the word "or" in front of
(vi), replacing it with a comma and inserting the
following language immediately following clause (vi)
thereof:

          "or (vii) release all or substantially all the
     Collateral from the Lien of the Security Agreement
     without the written consent of each Bank except as
     expressly provided in this Agreement or the Security
     Agreement"; and

          (e)  Article 11 of the 364-Day Credit Agreement
is hereby amended by adding the following section at the
end thereof:

         "SECTION 11.12.  Release of Grantors and
Collateral.  (a)  Notwithstanding any contrary provision
herein or in any other Loan Document, if the Company shall
request the release under the Security Agreement of (i)
any Collateral that has been sold to any Person other than
the Company or any Subsidiary, or (ii) any Collateral of
any Subsidiary Grantor in which the Company or any
Subsidiary owns all the equity interests, which Collateral
shall have been sold to any Person other than the Company
or any Subsidiary, in either case in a transaction
permitted under the terms of the Loan Documents, and shall
deliver to the Collateral Agent a certificate to the
effect that such sale will comply with the terms of the
Loan Documents, the Collateral Agent, if satisfied that
the applicable certificate is correct, shall, without the
consent of any Bank, execute and deliver all such releases
or other instruments, and take all such further actions,
as shall be necessary to effectuate the release of such
Collateral.

      (b)  Notwithstanding Section 5.14 or any other
provision herein or in any other Loan Document, the
Collateral Agent is hereby authorized and directed to
release (the "Collateral Release") the Collateral and the
proceeds thereof from the Liens created by the Security
Agreement (the "Collateral Release") on a Business Day
specified by the Company (the "Release Date"), upon the
satisfaction of the following conditions precedent (the
"Release Conditions"):

          (A) the Company shall have given notice to the
     Collateral Agent at least 30 days prior to the
     Release Date, specifying the proposed Release Date
     and electing to reinstate, effective as of the
     Release Date, the covenants set forth in Section 5.07
     of this Agreement as in effect immediately prior to
     the effectiveness of the Amendment and Restatement,
     Amendment No. 1 (and on the Release Date such
     covenants shall be permanently reinstated as provided
     below);
          (B) the Company shall have a Leverage Ratio less
     than or equal to 3.50 to 1.00 as of the Release Date
     and as of the last day of each of the two fiscal
     quarters most recently ended prior to the Release
     Date for which financial statements shall have been
     delivered pursuant to Section 5.01(a) or (b) and
     shall be in compliance as of the Release Date and as
     of the last day of each of such two fiscal quarters
     with the other covenants and agreements set forth in
     this Agreement, giving effect to the reinstatement of
     the covenants set forth in Section 5.07 as provided
     in paragraph (A) above as if such reinstatement had
     occurred prior to the last day of the earlier of such
     two fiscal quarters;

          (C) no Default or Event of Default shall have
     occurred and be continuing as of the Release Date;
     and

          (D) on the Release Date, the Administrative
     Agent and the Collateral Agent shall have received a
     certificate, dated the Release Date and executed on
     behalf of the Company by a Financial Officer thereof,
     confirming the satisfaction of the Release Conditions
     set forth in clauses (B) and (C) above and shall be
     satisfied that the certifications contained therein
     are accurate.

     Any such release shall be without recourse to, or
     representation or warranty by, the Collateral Agent
     and shall not require the consent of any Bank.
     Subject to the satisfaction of the conditions set
     forth in this paragraph (b), on and after the Release
     Date, the Collateral Agent shall execute and deliver
     all such instruments, releases, financing statements
     or other agreements, and take all such further
     actions, as shall be necessary to effectuate the
     release of Collateral required by this paragraph.

          (c)  On the Release Date, (i) Articles 2, 4 and
     5 of this Agreement shall be automatically and
     permanently amended by the deletion therefrom of
     Sections 2.11(f), 4.13, 4.14, 5.13, 5.14 and 5.15,
     and
     (ii) (A) Section 4.02 and (B) Sections 5.01(c), 5.07
     and 5.08 of this Agreement shall be automatically and
     permanently amended so that the representations and
     covenants, respectively set forth therein shall be
     those in effect immediately prior to the
     effectiveness of the Amendment and Restatement.

          (d)  Without limiting the provisions of Section
     11.03, the Borrowers shall reimburse the Collateral
     Agent for all costs and expenses, including
     attorneys' fees and disbursements, incurred by it in
     connection with any action contemplated by this
     Section 11.12."

          SECTION 10.  Amendment of Schedules and
Exhibits. (a)  The Pricing Schedule attached to the 364-
Day Credit Agreement is hereby replaced in its entirety
with the Pricing Schedule attached hereto.

          (b)  Exhibit K of the 364-Day Credit Agreement
is hereby amended by deleting the first sentence of
Section  19 thereof and replacing it with the following :

          "Pursuant to Section 5.11 of the Credit
Agreement, the Company must ensure at all times that all
Designated Subsidiaries are (or become within 30 Domestic
Business Days of being formed or acquired or becoming
Designated Subsidiaries) Subsidiary Guarantors.".

          (c)  Exhibit L of the 364-Day Credit Agreement
is hereby amended by deleting the first sentence of
Section 11 thereof and replacing it with the following:

          "Pursuant to Section 5.11 of the Credit
     Agreement, the Company must ensure at all times that
     all Designated Subsidiaries are (or become within 30
     Domestic Business Days of being formed or acquired or
     becoming Designated Subsidiaries) Subsidiary
     Guarantors.".

        (d)  The 364-Day Credit Agreement is hereby
amended by adding a new Exhibit M:  Form of Security
Agreement to the Five-Year Credit Agreement in the form of
Exhibit M hereto.

        (e)  The 364-Day Credit Agreement is hereby
amended by adding a new Exhibit N:  Form of Perfection
Certificate to the Five-Year Credit Agreement in the form
of
Exhibit N hereto.

          SECTION 11.  Appointments; Consents.  The
Required Banks hereby:

          (a)  appoint Citicorp USA, Inc., as Collateral
Agent for the benefit of the Secured Parties and the Loan
Parties hereby consent to such appointment;

          (b)  appoint Citicorp USA, Inc., as
Administrative Agent and the Loan Parties hereby consent
to such appointment;

          (c)  consent to the amendment of the 364-Day
Subsidiary Guarantee Agreement as provided in Section
10(b) hereof; and

          (d)  consent to the amendment of the 364-Day
Indemnity, Subrogation and Contribution Agreement as
provided in Section 10(c) above.

          SECTION 12.  Representations and Warranties.
To induce the other parties hereto to enter into this
Amendment, the Company hereby represents and warrants
that, after giving effect to this Amendment:

          (a)   The representations and warranties set
     forth in Article 4 of the 364-Day Credit Agreement,
     as amended by this Amendment, are true and correct on
     and as of the date hereof, except to the extent such
     representations and warranties specifically relate to
     an earlier date, with all references to "this
     Agreement" being deemed to refer to the 364-Day
     Credit Agreement, as amended by this Amendment;

          (b)  No Default or Event of Default has occurred
     and is continuing; and

          (c)  This Amendment has been duly executed and
     delivered by the Company and constitutes a legal,
     valid and binding obligation of the Company
     enforceable against the Company in accordance with
     its terms.

          SECTION 13.  Amendment Fee.  The Company agrees
to pay to the Administrative Agent, for the account of
each Bank that shall have executed and delivered to the
Syndication Agent a counterpart of this Amendment prior to
12:00 noon New York City time on December 26, 2001, a
nonrefundable amendment fee equal to 0.25% of the
aggregate amount of such Bank's Commitment, whether used
or unused, on the date hereof, payable in immediately
available funds.

          SECTION 14.  Conditions to Effectiveness.   This
Amendment shall become effective on the date on which:

          (i) the Syndication Agent shall have received
     counterparts of this Amendment that, when taken
     together, bear the signatures of the Company, the
     Required Banks and the Syndication Agent;

          (ii) the Administrative Agent shall have
     received counterparts of the Security Agreement that,
     when taken together, bear the signatures of the
     Company, the Designated Subsidiaries and the
     Collateral Agent;

          (iii) the Syndication Agent shall have received
a certificate, signed by a Financial Officer of the
Company, confirming (A) the accuracy of the
representations set forth in paragraphs (a) and (b) of
Section 12 and (B) the satisfaction of the Collateral
Requirement;

      (iv) the Collateral Agent shall have received a
completed Perfection Certificate dated the Amendment No. 2
Effective Date and signed by a Financial Officer of the
Company, together with all attachments contemplated
thereby;

     (v) the Administrative Agent shall have received the
amendment fees payable to the Banks under Section 13;

     (vi) the Syndication Agent and the Collateral Agent
shall have received written opinions of John T. Ferguson
II, Esq., General Counsel of the Company; Wachtell,
Lipton, Rosen & Katz, counsel to the Company; and such
other opinions as the Syndication Agent or the Collateral
Agent may reasonably request, each addressing such matters
as the Syndication Agent or the Collateral Agent shall
reasonably have requested and in form and substance
reasonably acceptable to the Syndication Agent or the
Collateral Agent; and

     (vii) the Syndication Agent shall have received, on
behalf of the Banks, (i) a copy of the certificate or
articles of incorporation or other organizational
documents, including all amendments thereto, of each of
the Loan Parties, certified as of a recent date by the
Secretary of State (or other appropriate governmental
authority) of the state of its organization, or other
evidence reasonably satisfactory to the Syndication Agent
as to the organization of such Loan Party; (ii) a
certificate as to the good standing or subsistence, to the
extent available, of each of the Loan Parties as of a
recent date, from the appropriate Secretary of State (or
other appropriate governmental authority) or other
evidence reasonably satisfactory to the Syndication Agent
as to the good standing of such Loan Party; (iii) a
certificate of the Secretary or Assistant Secretary of
each Loan Party dated the Amendment No. 1 Effective Date
and certifying (A) that attached thereto is a true and
complete copy of the by-laws or other organizational
documents of such Loan Party as in effect on the Amendment
No. 1 Effective Date and at all times since a date prior
to the date of the resolutions described in clause (B)
below, (B) that attached thereto is a true and complete
copy of resolutions duly adopted by the Board of Directors
(or other analogous governing body) of such Loan Party
(and, if necessary, resolutions duly adopted by the
shareholders or other equity owners of such Loan Party)
authorizing the execution, delivery and performance of the
Loan Documents to which such Loan Party is or is to be a
party and, in the case of the Borrowers, the transactions
hereunder, and that such resolutions have not been
modified, rescinded or amended and are in full force and
effect, (C) that the certificate or articles of
incorporation or other organizational documents of such
Loan Party have not been amended since the date of the
last amendment thereto shown on the certificate furnished
pursuant to clause (i) above, and (D) as to the incumbency
and specimen signature of each officer executing any Loan
Document or any other document delivered in connection
herewith on behalf of such Loan Party; (iv) a certificate
of another officer as to the incumbency and specimen
signature of the Secretary or Assistant Secretary
executing the certificate pursuant to clause (iii) above;
and (v) such other documents as the Banks, the Issuing
Bank or Cravath, Swaine & Moore, special counsel for the
Syndication Agent, may reasonably request related to the
foregoing.

          SECTION 15.  Effect of Amendment.  (a) On and
after the Amendment No. 1 Effective Date, each reference
in the 364-Day Credit Agreement to "this Agreement",
"hereunder", "herein", or words of like import shall mean
and be a reference to the 364-Day Credit Agreement, as
amended hereby.  Except as expressly set forth herein,
this Amendment shall not by implication or otherwise
limit, impair, constitute a waiver of or otherwise affect
the rights and remedies of the Banks under the 364-Day
Credit Agreement or any other Loan Documents, and shall
not alter, modify, amend or in any way affect any of the
terms, conditions, obligations, covenants or agreements
contained in the 364-Day Credit Agreement or any other
Loan Documents, all of which are ratified and affirmed in
all respects and shall continue in full force and effect.
Nothing herein shall be deemed to entitle the Company to a
consent to, or a waiver, amendment, modification or other
change of, any of the terms, conditions, obligations,
covenants or agreements contained in the 364-Day Credit
Agreement or any other Loan Documents in similar or
different circumstances.  This Amendment shall apply and
be effective only with respect to the provisions of the
364-Day Credit Agreement specifically referred to herein.

          (b) Nothing herein will be deemed to reduce the
obligations of any Subsidiary Guarantor under the
Subsidiary Guarantee Agreement, which shall remain in full
force and effect.

          SECTION 16.  References in Documents Executed in
Connection with this Amendment.  References to Citibank,
N.A. as Administrative Agent and/or Collateral Agent in
documents executed in connection with this Amendment will
be deemed to be references to Citicorp USA, Inc. as
Administrative Agent and/or Collateral Agent, as
applicable. References to Bank of America, N.A. and
Deutsche Banc Alex. Brown (formerly known as Deutsche Bank
Securities Inc.) as Co-Documentation Agents in documents
executed in connection with this Amendment will be deemed
to be references to Bank of America, N.A. as Documentation
Agent.

          SECTION 17.  Counterparts.  This Amendment may
be executed by one or more parties to this Amendment in
any number of separate counterparts, each of which shall
constitute an original, but all of which when taken
together shall constitute but one contract.  Delivery of
an executed counterpart of a signature page of this
Amendment by facsimile transmission shall be as effective
as delivery of a manually executed counterpart hereof.

          SECTION 18.  APPLICABLE LAW.  THIS AMENDMENT
SHALL BE CONSTRUED IN ACCORDANCE WITH AND GOVERNED BY THE
LAW OF THE STATE OF NEW YORK.

          SECTION 19.  Headings.  Section headings used
herein are for convenience of reference only, are not part
of, and are not to be taken into consideration in
interpreting, this Amendment.

     SECTION      20.  Expenses.  The Company shall
reimburse the Syndication Agent and the Collateral Agent
for their reasonable out-of-pocket expenses in connection
with this Amendment, including the reasonable fees,
charges and disbursements of Cravath, Swaine & Moore.

     IN WITNESS WHEREOF, the Company, the Administrative
Agent and the undersigned Banks have caused this Amendment
to be duly executed by their duly authorized officers, all
as of the date first above written.



                   CROMPTON CORPORATION,

                    By
                         Name:
                         Title:


                    By




                         Name:
                         Title:

Each of the Subsidiary Guarantors hereby acknowledges
receipt of, and consents to the terms of, this Amendment.



CROMPTON MANUFACTURING COMPANY, INC.,


                         By


                              Name:
                              Title:


                         By


                              Name:
                              Title:

CITICORP USA, INC., individually, as Administrative  Agent
and as Collateral Agent,


     By
          Name:
          Title:


JPMORGAN CHASE BANK (formerly known as THE CHASE MANHATTAN
BANK),

     By


          Name:
          Title:

          270 Park Avenue
          New York, NY 10017



BANK OF AMERICA, N.A.,

     By


                           Name:
                          Title:

          335 Madison Avenue New York, NY 10017

DEUTSCHE BANK AG NEW YORK BRANCH a/o CAYMAN ISLANDS
BRANCH,

     By


          Name:
          Title:



          Name:
          Title:

          31 W. 52nd Street
          New York, NY 10019

MELLON BANK, N.A.,

     By



          Name:
          Title:

          One Mellon Bank Center Pittsburgh, PA 15258

ABN AMRO BANK N.V.,

     By



          Name:
          Title:


     By



          Name:
          Title:

          500 Park Avenue
                    New York, NY 10022

COMMERZBANK AG
NEW YORK AND GRAND CAYMAN  BRANCHES,

     By



          Name:
          Title:

     By




          Name:
          Title:


FOUR WINDS FUNDING CORPORATION,
as Designee,

     By


          Name:
          Title:


     By


          Name:
          Title:

          Address:




THE BANK OF NEW YORK,

     By




          Name:
          Title:

          Address:




FIRST UNION NATIONAL BANK,

     By


          Name:
          Title:

          301 W. College Street, TW-5 Charlotte, NC 28288-
          0760

FLEET NATIONAL BANK,

     By



          Name:
          Title:

          1 Federal Street
          Boston, MA 02110

BANK OF TOKYO-MITSUBISHI TRUST COMPANY,

     By



          Name:
          Title:

          1251 Avenue of the Americas New York, NY 10020-

          1104

THE BANK OF NOVA SCOTIA, By



                           Name:
                          Title:

                         Address:


BNP PARIBAS,

     By


                           Name:
                          Title:

     By



                           Name:
                          Title:

          787 Seventh Avenue New York, NY 10019

BANCA NAZIONALE DEL LAVORO S.P.A. NEW YORK BRANCH,

     By



          Name:
          Title:



          Name:
          Title:

          25 West 51st Street
                    New York, NY 10019


SUNTRUST BANK,

     By


          Name:
          Title:

          711 Fifth Avenue, 16th Floor New York, NY 10022



INTESABCI  NEW YORK BRANCH,

     By


                           Name:
                          Title:

     By


                           Name:
                          Title:

          One William Street New York, NY 10004


ING (U.S.) CAPITAL LLC,

     By



                           Name:
                          Title:

          1325 Avenue of the Americas 8th Floor
                    New York, NY 10019

BANCA MONTE DEI PASCHI DI SIENA S.P.,

     By



          Name:
          Title:

     By



          Name:
          Title:

          55 East 59th Street
          New York, NY 10022

PEOPLE'S BANK,

     By



                              Name:
                              Title:
                              350 Bedford Street Stamford,
                              CT 06901

HIBERNIA NATIONAL BANK,
                            By



                              Name:
                              Title:

                              313 Carondelet Street New
                              Orleans, LA 70130


                      PRICING SCHEDULE

          Each of "Facility Fee Rate", "Euro-Dollar
Margin" and "CD Margin" means, for any day, the rate set
forth below in the row opposite such term and in the
column corresponding to the Pricing Level that applies on
such day as determined based on the ratings by Moody's and
S&P:


Pricing      Level       Level     Level IIIBBB-
Level        I$BBB/Baa2  IIBBB-/   and Ba1orBB+
                         Baa3      and Baa3

Facility
Fee Rate     0.125%      0.150%     0.250%

Euro-Dollar
Margin       0.875%1     1.350%1    1.750%1

CD Margin    2.125%1     2.600%1    3.000%1

Base Rate
Margin       0.150%1     0.350%     0.750%1


Pricing      Level IVBB+/Bal     Level V<Bal/BB+
Level

Facility
Fee Rate     0.300%                0.375%

Euro-Dollar
Margin       1.950%1               2.125%1

CD Margin    3.200%1               3.375%1

Base Rate
Margin       0.950%1               1.125%1



1  The Euro-Dollar Margin, CD Margin and Base Rate Margin
shall increase by 0.500% per annum on any day on which the
Company has a Leverage Ratio that is greater than 4.0 to
1.0.



          For purposes of this Schedule, the following
          terms have the following meanings:

          "Moody's" means Moody's Investors Service, Inc.

          "S&P" means Standard & Poor's Ratings Services,
          a division of The McGraw-Hill Companies, Inc.

The credit ratings to be utilized for purposes of this
Schedule are those assigned to this Agreement and the Five
Year Credit Agreement and if no credit rating shall be
available for this Agreement and the Five-Year Credit
Agreement, to the senior unsecured long-term debt
securities of the Company without third-party credit
enhancement, and any rating assigned to any other debt
security of the Company shall be disregarded.  The ratings
in effect for any day are those in effect at the close of
business on such day.  In the case the ratings from S&P
and Moody's would indicate different Levels, the lower
Level (Level V being the lowest Level) will apply.