1. Name and Address of Reporting Person
Conway, James J.
Benson Road
Middlebury, CT 06749
USA
2. Issuer Name and Ticker or Trading Symbol
Crompton Corporation
3. IRS or Social Security Number of Reporting Person (Voluntary)
4. Statement for Month/Day/Year
02/07/2003
5. If Amendment, Date of Original (Month/Day/Year)
6. Relationship of Reporting Person(s) to Issuer (Check all applicable)
( ) Director ( ) 10% Owner
(X) Officer (give title below) ( ) Other (specify below)
Exec. V.P. - Performance Chemi
7. Individual or Joint/Group Filing (Check Applicable Line)
(X) Form filed by One Reporting Person
( ) Form filed by More than One Reporting Person
TABLE I -- Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
+------------------------------+----------+----------+---------+--------------------------+--------------+-----------+------------+
|1. Title of Security |2. Trans- |2A.Execu- |3. Trans-|4. Securities Acquired (A)|5. Amount of |6. Owner- |7. Nature |
| | action | action | action| or Disposed of (D) |Securities | ship | of In- |
| | Date | Date | Code | |Beneficially | Form: | direct |
| | | | | |Owned | Direct | Bene- |
| | (Month/ | (Month/ | | |Following | (D) or | ficial |
| | Day/ | Day/ +-----+---+-----------+---+----------+Reported | Indirect| Owner- |
| | Year) | Year) |Code |V |Amount |A/D|Price |Transaction(s)| (I) | ship |
+------------------------------+----------+----------+-----+---+-----------+---+----------+--------------+-----------+------------+
Common Stock 02/07/2003 A 2643 A $5.7000 3443 D
Common Stock 2462.975 I ESOP TRUST
Common Stock 02/07/2003 A 32576 A $5.7000 74442 I LTIP TRUST
(1988)
Common Stock 3074.1183 I ESPP
TABLE II -- Derivative Securities Acquired, Disposed of, or Beneficially Owned
+----------+--------+-------+-------+---------+-----------+---------------------+----------------+----------+-------+-------+------+
|1. |2. |3. |3A. |4. |5. |6. |7. |8. |9. |10. |11. |
| | | | | | | | | |Number |Owner- | |
| | | | | | | | | |of |ship | |
| | | | | | | | | |Deriv- |Form of| |
| | | | | | | |Title and Amount| |ative |Deriv- | |
| | | | | | | |of Underlying | |Secur- |ative |Nature|
| |Conver- |Trans- |Execu- | |Number of | |Securities | |ities |Secur- |of |
| |sion or |action |tion | |Derivative |Date Exercisable +-------+--------+ |Benefi-|ity: |In- |
| |Exercise|Date |Date | |Securities |and Expiration Date | |Amount | |cially |Direct |direct|
| |Price of| | |Transac- |Acquired(A)|(Month/Day/Year) | |or | |Owned |(D) or |Bene- |
|Title of |Deriv- |(Month/|(Month/|tion Code|Disposed(D)+----------+----------+ |Number |Price of | |In- |ficial|
|Derivative|ative | Day/ | Day/ +------+--+-----+-----+Date Exer-|Expira- | |of |Derivative| |direct |Owner-|
|Security |Security|Year) |Year) |Code |V |(A) |(D) |cisable |tion Date |Title |Shares |Security | |(I) |ship |
+----------+--------+-------+-------+------+--+-----+-----+----------+----------+-------+--------+----------+-------+-------+------+
NQ Stock $7.92 11/22/2011 Common 22374 D
Option Stock
(Right to
Buy)
NQ Stock $8.1562 11/30/2010 Common 50000 D
Option Stock
(Right to
Buy)
NQ Stock $8.3437 11/19/2009 Common 76030 D
Option Stock
(Right to
Buy)
NQ Stock $14.3438 11/14/2008 Common 13029 D
Option Stock
(Right to
Buy)
NQ Stock $26.4063 11/07/2007 Common 2428 D
Option Stock
(Right to
Buy)
ISO Stock $7.92 10/23/2011 Common 12626 D
Option Stock
(Right to
Buy)
ISO Stock $8.3437 10/19/2009 Common 23970 D
Option Stock
(Right to
Buy)
ISO Stock $14.3438 10/14/2008 Common 6971 D
Option Stock
(Right to
Buy)
ISO Stock $26.4063 10/07/2007 Common 7572 D
Option Stock
(Right to
Buy)
Explanation of Responses:
2,643 shares represent the third distribution of the Merger Synergy Award.
19,550 shares represent the Retention Award shares earned from the 2001-2002
LTIP.
13,026 shares represent the third distribution of the Merger Synergy
Award.
SIGNATURE OF REPORTING PERSON
/s/ James J. Conway
DATE
02/10/2003