Holding(s) in Company

Cookson Group PLC
17 April 2003

                                  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

CHASE NOMINEES LIMITED (37,983,124 SHARES)
CLYDESDALE BANK (4,757,801 SHARES)
NORTHERN TRUST CO. (1,063,300 SHARES)
ROYAL TRUST CORP OF CANADA (6,759,259 SHARES)
STATE STREET (2,353,777 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 1 PENCE EACH


10) Date of transaction

16 APRIL 2003


11) Date company informed

16 APRIL 2003


12) Total holding following this notification

52,917,261 SHARES


13) Total percentage holding of issued class following this notification

2.79%


14) Any additional information

N/A


15) Name of contact and telephone number for queries

RACHEL BENJAMIN, COMPANY SECRETARIAL ASST, COOKSON GROUP PLC - TEL: [phone]
4590


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

RACHEL BENJAMIN, COMPANY SECRETARIAL ASST, COOKSON GROUP PLC


Date of notification 17 April 2003



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