Holding(s) in Company

Cookson Group PLC
20 May 2002


                                  SCHEDULE 10

                   NOTIFICATION OF MAJOR INTERESTS IN SHARES

1) Name of company

COOKSON GROUP PLC

2) Name of shareholder having a major interest

FRANKLIN RESOURCES, INC.

3) Please state whether notification indicates that it is in respect of
holding of the shareholder named in 2 above or in respect of a
non-beneficial interest or in the case of an individual holder if it is a
holding of that person's spouse or children under the age of 18

AS ABOVE

4) Name of the registered holder(s) and, if more than one holder, the
number of shares held by each of them

BANKERS TRUST COMPANY (220,981 SHARES)
BANK OF NEW YORK NOMINEES (141,690 SHARES)
CHASE NOMINEES LIMITED (36,190,854 SHARES)
CITIBANK (70,000 SHARES)
CLYDESDALE BANK (1,897,010 SHARES)
DEUTSCHE BANK AG (150,372 SHARES)
MERRILL LYNCH (2,296,001 SHARES)
ROYAL TRUST CORP OF CANADA (8,682,814 SHARES)
STATE STREET (860,601 SHARES)

5) Number of shares/amount of stock acquired

N/A


6) Percentage of issued class

N/A

7) Number of shares/amount of stock disposed

NOT DISCLOSED


8) Percentage of issued class

NOT DISCLOSED


9) Class of security

ORDINARY SHARES OF 50 PENCE EACH

10) Date of transaction

17 MAY 2002

11) Date company informed

20 MAY 2002

12) Total holding following this notification

50,510,323 SHARES

13) Total percentage holding of issued class following this notification

6.94%

14) Any additional information

N/A


15) Name of contact and telephone number for queries

ALAN WALLWORK, ASST COMPANY SECRETARY, COOKSON GROUP PLC - TEL: [phone]


16) Name and signature of authorised company official responsible for
making this notification

ALAN WALLWORK, ASST COMPANY SECRETARY, COOKSON GROUP PLC



Date of notification 20 MAY 2002


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