SECURITIES AND EXCHANGE COMMISSION
                     Washington, D.C. 20549


                           FORM 11-K

(Mark One)

[X]  Annual Report pursuant to Section 15 (d) of the Securities
     Exchange Act of 1934

     For the calendar year ended December 31, 2001

                               OR

[ ]  Transition report pursuant to Section 15 (d) of the
     Securities Exchange Act of 1934

     For the transition period from ________ to _________

     Commission file number 0-30270

A.   Full title of the Plan and the address of the Plan, if
     different from that of the issuer named below:

                 UNIROYAL CHEMICAL COMPANY, INC.
                         SAVINGS PLAN A
                           BENSON ROAD
                      MIDDLEBURY, CT 06749

B.   Name of issuer of the securities held pursuant to the Plan
     and the address of its principal executive office:

                      Crompton Corporation
                        One American Lane
                  Greenwich, Connecticut  06831




                 UNIROYAL CHEMICAL COMPANY, INC.
                         SAVINGS PLAN A

                  Index to Financial Statements


Independent Auditors' Report

Statements of Net Assets Available for Plan Benefits as of
December 31, 2001 and 2000

Statements of Changes in Net Assets Available for Plan Benefits
for the Years Ended December 31, 2001 and 2000

Notes to Financial Statements

Supplemental Schedules:

Schedule H, Line 4i - Schedule of Assets (Held at End of Year)

Schedule H, Line 4j - Schedule of Reportable Transactions

Signature






                 UNIROYAL CHEMICAL COMPANY, INC.

                         SAVINGS PLAN A

         Financial Statements and Supplemental Schedules

                   December 31, 2001 and 2000

           (With Independent Auditors' Report Thereon)





                 UNIROYAL CHEMICAL COMPANY, INC.
                         SAVINGS PLAN A




                              INDEX


Independent Auditors' Report


Statements  of  Net  Assets Available for  Plan  Benefits  as  of
December 31, 2001 and 2000


Statements  of Changes in Net Assets Available for Plan  Benefits
for the Years Ended December 31, 2001 and 2000


Notes to Financial Statements



Supplemental Schedules:


Schedule H, Line 4i - Schedule of Assets (Held at End of Year)


Schedule H, Line 4j - Schedule of Reportable Transactions






              Independent Auditors' Report



The Board of Directors
Crompton Corporation:

We  have  audited the accompanying statements of net
assets available for  plan benefits of Uniroyal Chemical
Company, Inc. Savings Plan  A (the  "Plan")  as  of
December 31, 2001 and 2000,  and  the  related statements
of changes in net assets available for plan benefits  for
the   years   then  ended.   These  financial  statements
are  the responsibility  of the Plan's management.  Our
responsibility  is  to express an opinion on these
financial statements based on our audits.

We  conducted  our  audits  in  accordance  with
auditing  standards generally  accepted in the United
States of America.  Those standards require  that  we
plan  and perform the audit to  obtain  reasonable
assurance about whether the financial statements are free
of material misstatement.  An audit includes examining,
on a test basis, evidence supporting  the amounts and
disclosures in the financial  statements. An  audit also
includes assessing the accounting principles used  and
significant  estimates made by management, as well as
evaluating  the overall financial statement presentation.
We believe that our audits provide a reasonable basis for
our opinion.

In  our  opinion, the financial statements referred to
above  present fairly,  in all material respects, the net
assets available for  plan benefits  of  the  Plan as of
December 31, 2001  and  2000,  and  the changes in net
assets available for plan benefits for the years  then
ended in conformity with accounting principles generally
accepted  in the United States of America.

Our  audits  were performed for the purpose of forming an
opinion  on the  basic  financial statements taken as a
whole.  The  supplemental schedule  of assets (held at
end of year) and schedule of  reportable transactions are
presented for the purpose of additional analysis and are
not  a required part of the basic financial statements
but  are supplementary information required by the
Department of Labor's Rules and  Regulations  for
Reporting and Disclosure  under  the  Employee Retirement
Income Security Act of 1974.  These supplemental
schedules are  the  responsibility of the Plan's
management.  The  supplemental schedules  have been
subjected to the auditing procedures applied  in the
audits of the basic financial statements and, in our
opinion, are fairly  stated  in  all material respects in
relation  to  the  basic financial statements taken as a
whole.







/s/KPMG LLP
Stamford, Connecticut
June 14, 2002





                 UNIROYAL CHEMICAL COMPANY, INC.
                         SAVINGS PLAN A
      STATEMENTS OF NET ASSETS AVAILABLE FOR PLAN BENEFITS
               AS OF DECEMBER 31, 2001 and 2000

                                               2001           2000
ASSETS:
 Investments:
  Guaranteed investment contracts            $         0  $  698,072
  Short-term investment fund                           0   1,519,603
  Investments in registered investment         3,547,607   3,687,621
   companies
  Investments in common/collective trusts      3,618,930   2,419,468
  Common stock of Crompton Corporation           225,637     233,085
  Loans receivable from participants             136,475     280,417
                                               7,528,649   8,838,266

 Contributions receivable from participants       20,871      37,897
 Contribution receivable from Uniroyal             1,928       2,442
Chemical Company, Inc.
              Total assets                     7,551,448   8,878,605
LIABILITIES:
  Administrative expenses payable                 20,354      21,088
              Net assets available for plan
               benefits                       $7,531,094  $8,857,517


See accompanying notes to financial statements



                 UNIROYAL CHEMICAL COMPANY, INC.
                         SAVINGS PLAN A
 STATEMENTS OF CHANGES IN NET ASSETS AVAILABLE FOR PLAN BENEFITS
        FOR THE YEARS ENDED DECEMBER 31, 2001 and 2000

                                              2001        2000
Additions
 Additions to net assets attributed to:
  Interest and dividend income           $  331,671   $  643,316
 Contributions:
  Employer                                   29,246       33,410
  Participants                              578,572      653,130

              Total additions               939,489    1,329,856
Deductions
 Deductions from net assets attributed to:
 Net (depreciation) in fair value of       (360,070)    (398,631)
investments
 Benefits paid to participants           (1,861,148)  (2,410,743)
Administrative expenses                     (44,694)     (45,937)
              Total deductions           (2,265,912)  (2,855,311)

              Net decrease               (1,326,423)  (1,525,455)

Net assets available for plan benefits
 at beginning of year                     8,857,517   10,382,972
Net assets available for plan benefits
 at end of year                          $7,531,094   $8,857,517


See accompanying notes to financial statements





                 UNIROYAL CHEMICAL COMPANY, INC
                         SAVINGS PLAN A
                  NOTES TO FINANCIAL STATEMENTS
                    DECEMBER 31, 2001 and 2000


1. Plan Description
   The  Uniroyal  Chemical  Company, Inc.  Savings  Plan  A  (the
   "Plan")  is a defined contribution plan established on October
   15,  1986 and amended and restated effective September 1, 1997
   to  provide a means for eligible employees to supplement their
   retirement  income.  Participants receive retirement  payments
   as  of  their  retirement  date by  electing  one  of  several
   payment  options  as  specified in  the  Plan.  The  following
   description  of  the  Plan provides only general  information.
   For complete information, see the Plan document.  The Plan  is
   subject  to  the provisions of the Employee Retirement  Income
   Security Act of 1974, as amended ("ERISA").

   The  Plan  is administered by the Employee Benefits  Committee
   consisting  of persons appointed by the Board of Directors  of
   Crompton Corporation (the "Company").

   The   Plan  covers  all  hourly-rate  and  salaried  employees
   represented by a collective bargaining agent at the  Company's
   plants  or  other  locations  or  hourly-rate  employees   not
   represented  by  a collective bargaining agent  at  a  Company
   plant  or  location  to  which the  Company's  Plan  has  been
   extended.

   Company Contributions
   Contributions  by the Company are made monthly for  each  hour
   for  which  the  participant receives pay  from  the  Company,
   including 40 hours for each week of vacation eligibility.   In
   addition,  the Company will contribute, based upon  40  hours,
   for  any  period  of  absence  during  which  the  participant
   accrues  credited service.  The rate of contribution per  hour
   is in accordance with the following schedule:


                         Years of      Rate Per
                         Service         Hour
                           0-14          $.05
                          15-24           .12
                            25+           .18

   The  Plan  provides that, except in certain specified  events,
   Company  contributions credited to a participant  account  are
   not  vested  until the completion of three years  of  service.
   Thereafter, all Company contributions are immediately vested.

   Participant Contributions
   Each  participant may contribute an amount not to  exceed  15%
   of  eligible  compensation for each  Plan  year.   Participant
   contributions  are  treated as pre-tax contributions  and  are
   made  by  payroll  deductions.  Participant contributions  are
   subject  to  Internal Revenue Service limitations, which  were
   $10,500 in 2001 and 2000.

   Employee Accounts
   The  Vanguard Funds are maintained by the Vanguard  Investment
   Group  and as the record keeper for participant contributions,
   also  maintains,  for  each participant  who  elects  to  make
   voluntary  contributions, a "Voluntary Deferred  Contributions
   Account"  showing  the amount of participant contributions  in
   various Vanguard Funds.

   Expenses
   Expenses  incurred are paid by the Plan, except to the  extent
   that  the Company shall provide for such payment.  The Company
   provides  administrative and accounting services for the  Plan
   at no charge.

   Loans
   The  Plan  permits  participants to borrow  funds  from  their
   Voluntary  Deferred Contributions Account, subject to  certain
   restrictions.   The  minimum amount that may  be  borrowed  is
   $1,000. The maximum amount that may be borrowed is the  lesser
   of  $50,000  reduced  by the greater of  (a)  the  outstanding
   balance of loans from the Plan to the participant on the  date
   the  loan  is made, or (b) the highest outstanding balance  of
   loans  from  the Plan to the participant during  the  one-year
   period  ending  on the day before the date the  loan  is  made
   (excluding  any  payments made) or 50% of  the  value  of  the
   participant's vested interest under the Plan on the  date  the
   loan  is  made  or  the amount of the participant's  voluntary
   deferred  account  not  invested in the  Crompton  Corporation
   Common  Stock  Fund.  Loans bear interest at a rate  equal  to
   1.0%  above  the  prime rate.  Loans are payable  within  five
   years,  except for those used to acquire a principal residence
   which are payable within 15 years.

   Investments
   Employer contributions are invested in the Retirement  Savings
   Trust   Fund   ("Trust  Fund")  maintained  by  the   Vanguard
   Investment  Group. Participant contributions are  invested  in
   mutual funds maintained by the Vanguard Investment Group.

   The  guaranteed investment contracts held by State  Street  at
   August  31, 1997 were held to maturity and invested  in  short
   term  investment funds.  These funds were transferred  to  and
   invested   in  the  Vanguard  mutual  funds  in  five   annual
   installments  with the initial payment made  on  December  31,
   1997  and  the  last  payment made on August  31,  2001.   The
   Company  contribution portion of each installment payment  was
   invested  in  the Retirement Savings Trust Fund.  The  balance
   of  each participant's transfer was invested in the same ratio
   as  the  participant's  then  current  voluntary  contribution
   allocation.   Voluntary deferred contributions  currently  not
   being  made  by the participant was invested in the Retirement
   Savings Trust Fund.

   Withdrawals and Forfeitures
   A  participant may withdraw in whole or in part, subject to  a
   90%  maximum  on  partial withdrawals, his  or  her  voluntary
   contributions  account  at  any  time,  provided   that   each
   withdrawal is separated by a period of six months.

   In  the  event a participant's employment with the Company  is
   terminated because of retirement or death, the participant  or
   a  designated beneficiary shall receive payment of his or  her
   benefit  account  balance.  At December  31,  2001  and  2000,
   benefit  payments  due participants who terminated  employment
   with   the   Company   prior   to   year-end   and   requested
   distributions   of   their  accounts  totaled   $180,767   and
   $315,411, respectively.  These amounts have not been  recorded
   in  the  financial  statements but  are  included  as  benefit
   payments and liabilities in the Form 5500 of the Plan.

   Forfeitures, consisting of Company contributions  credited  to
   the   Company   Basic  Contribution  Account   applicable   to
   participants  who  terminate from the Plan while  not  vested,
   are  valued at the employee's share of the cost of the  Plan's
   investment  plus accrued interest thereon.  These amounts  are
   applied   to  reduce  the  Company's  current  obligation   to
   contribute  to  the Plan.  There were no forfeitures  in  2001
   and 2000.

2. Significant Accounting Policies
   Basis of Presentation
   The  accompanying financial statements have been  prepared  on
   the accrual basis of accounting.

   Use of Estimates
   The  preparation  of financial statements in  conformity  with
   accounting principles generally accepted in the United  States
   of   America,   requires  the  Plan  to  make  estimates   and
   assumptions  that affect the reported amounts  of  assets  and
   liabilities   and   disclosure  of   contingent   assets   and
   liabilities  at the date of the financial statements  and  the
   reported  changes  in net assets available for  plan  benefits
   during  the  reporting  period.  Actual results  could  differ
   from those estimates.

   Payment of Benefits
   Benefits are recorded when paid.

3. Investments
   Short Term Investment Fund
   The  Short-term Investment Fund is valued at cost plus accrued
   interest. The carrying amount approximates fair value  because
   of  the  short  maturity of those instruments.  The  aggregate
   yield for these investments at the end of 2000 was 6.4%.

   Guaranteed Investment Contracts
   The  guaranteed  investment contracts with  various  insurance
   companies are valued at contract value that approximates  fair
   value. Such investments earned interest at rates ranging  from
   6.32% to 7.07% during 2000.

   Mutual Funds
   The  mutual funds sponsored by registered investment companies
   are  recorded  at  market  value  based  on  published  market
   prices.

   Crompton Corporation Stock Fund
   The Crompton Corporation Stock Fund is valued at its year-end
   closing price (comprised of year-end market price plus
   uninvested cash position).

   Loans Receivable
   The  loan  receivables from participants are  valued  at  cost
   plus accrued interest, which approximates fair value.

   Income Recognition
   Net  appreciation (depreciation) in fair value of  investments
   includes  investments bought, sold and held during  the  year.
   Purchases  and sales of securities are recorded  on  a  trade-
   date  basis. Interest income is accrued when earned.  Dividend
   income  is  recorded  on the ex-dividend  date.  Capital  gain
   distributions are included in dividend income.

4. Investments Exceeding 5% of Net Assets
   The  Plan's  investments exceeding 5% of net assets  available
   for  plan  benefits as of December 31, 2001 and  2000  are  as
   follows:


        Description of Investment           2001        2000

        Short-term Investment Fund      $        0   $1,519,603
        Guaranteed Investment
         Contracts                               0      698,072
        Vanguard Retirement Savings
         Trust                           3,618,930    2,419,468
        Vanguard 500 Index Fund          1,129,207    1,235,016
        Vanguard Windsor Fund              993,453      981,643
        Vanguard Morgan Growth Fund        585,404      635,189

   Appreciation/(Depreciation) in Investments
   During 2001 and 2000, the Plan's investments (including  gains
   and  losses  on investments bought and sold, as well  as  held
   during   the  year)  appreciated/(depreciated)  in  value   as
   follows:

                                           2001       2000
        Investments in Registered
         Investment Companies           ($320,260)   ($358,874)
        Common Stock of Crompton
         Corporation                    (  39,810)   (  39,757)
                                        ($360,070)   ($398,631)

5. Tax Status
   The  Internal Revenue Service ("IRS") has determined  and  has
   informed the Company by a letter dated June 12, 1995 that  the
   Plan  and  related  trust  are  designed  in  accordance  with
   applicable sections of the Internal Revenue Code ("IRC").  The
   Plan  has  been  amended  since  receiving  the  determination
   letter.  However, the Plan administrator and  the  Plan's  tax
   counsel  believe  that the Plan is designed and  is  currently
   being  operated in compliance with the applicable requirements
   of  the  IRC.  The Company applied for a new tax determination
   letter  in  December, 2001 and is awaiting response  from  the
   IRS.

6. Parties-in-Interest
   The  Chase  Bank, AON Consulting, State Street Bank and  Trust
   Company,  The Vanguard Investment Group, and the  Company  are
   parties-in-interest  as  defined in Section  3(14)  of  ERISA.
   During  the  years  2001 and 2000, there  were  no  prohibited
   party-in-interest transactions.

7. Priorities Upon Termination of the Plan
   The  Board  of Directors of the Company shall have  the  right
   from  time  to time to add to, modify or amend the  Plan,  and
   the  Board of Directors shall have the right to terminate  the
   Plan.    The  Board  of  Directors  may  also  authorize   the
   inclusion  in  any contract entered into by the  Company  with
   the  union or unions representing employees, or with any group
   or  groups  of employees, of a provision or provisions  having
   the   effect  of  limiting  or  foregoing  any  such   rights.
   Further,   no   addition   to,  modification,   amendment   or
   termination of the Plan shall have the effect of reducing  the
   entitlement  of  any participant's benefit accrued  under  the
   Plan  or of diverting any part of the assets of the Trust Fund
   for purposes other than provided in the Plan.

   Upon  any  termination of the Plan or complete  and  permanent
   discontinuance  of  contributions  of  all  participants,  the
   entitlement  of each participant's Company Basic Contributions
   Account,  if  not  already vested, shall vest  fully  and  all
   amounts   in  all  accounts  of  each  participant  shall   be
   delivered and paid as soon as practicable.

8. Subsequent Event - Plan Merger
   Effective April 1, 2002, the Uniroyal Chemical Company, Inc.
   Savings Plan A, was merged into the Crompton Employee Savings
   Plan.  Fidelity Investments is the trustee and record keeper
   of the Crompton Employee Savings Plan.  The provisions of the
   Plan as a result of this merger have remained unchanged.  All
   assets have been transferred to similar funds as of the date
   of transfer.



                                               Schedule H, Line 4i


                 UNIROYAL CHEMICAL COMPANY, INC.
                         SAVINGS PLAN A
            SCHEDULE OF ASSETS (HELD AT END OF YEAR)
                         DECEMBER 31, 2001


                        Description of Investment
Identity of Issue,     Including Maturity Date, Rate    Current
Borrower, Lessor or     of Interest, Collateral, Par    Value
Similar Party               or Maturity Value



Vanguard Trust Company    Explorer Fund                 $  181,676

Vanguard Trust Company    Long Term Corporate Fund         129,736

Vanguard Trust Company    500 Index Fund                 1,129,207

Vanguard Trust Company    International Growth Fund        158,343

Vanguard Trust Company    Prime Money Market Fund          130,919

Vanguard Trust Company    Star Fund                        238,869

Vanguard Trust Company    Morgan Growth Fund               585,404

Vanguard Trust Company    Windsor Fund                     993,453

Vanguard Trust Company    Retirement Savings Trust       3,618,930

Crompton Corporation      Common Stock                     225,637

                                                         7,392,174


Loans receivable from         Loans earn interest at       136,475
 participants                 the prime rate plus 1%

                                   TOTAL INVESTMENTS    $7,528,649

Party in-Interest - All parties listed above


See accompanying independent auditors' report.




                                              Schedule H, Line 4j




                 UNIROYAL CHEMICAL COMPANY, INC.
                         SAVINGS PLAN A
               SCHEDULE OF REPORTABLE TRANSACTIONS
               FOR THE YEAR ENDED DECEMBER 31, 2001



Identity of     Description  Purchase  Selling  Cost of  Net Gain
Party Involved  of Asset     Price     Price    Asset    (Loss)

Series of
Transactions:

Vanguard Trust  Vanguard    $1,964,250 $   -   $1,964,250  $  -
Company         Retirement
                Savings
                Trust


Vanguard Trust  Vanguard    $   -      $764,788 $ 764,788   $  -
Company         Retirement
                Savings
                Trust


See accompanying independent auditors' report.





                          SIGNATURE




     The Plan.  Pursuant to the requirements of the Securities
and Exchange Act of 1934, the trustees (or other persons who
administer the employee benefit plan) have duly caused this
annual report to be signed on its behalf by the undersigned
hereunto duly authorized.



                 UNIROYAL CHEMICAL COMPANY, INC.
                         SAVINGS PLAN A





Date:  June 27, 2002              By:/s/Peter Barna
                                  Peter Barna
                                  Senior Vice President &
                                  Chief Financial Officer