Holding(s) in Company

Cookson Group PLC
06 August 2003

                                  SCHEDULE 10

                   NOTIFICATION OF MAJOR INTERESTS IN SHARES

1) Name of company

COOKSON GROUP PLC

2) Name of shareholder having a major interest

AEGON UK PLC


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

5) Number of shares/amount of stock acquired

7,581,041 SHARES


6) Percentage of issued class

0.40%

7) Number of shares/amount of stock disposed

N/A


8) Percentage of issued class

N/A


9) Class of security

ORDINARY SHARES OF 1 PENCE EACH

10) Date of transaction

NOT DISCLOSED

11) Date company informed

5 AUGUST 2003

12) Total holding following this notification

95,940,223 SHARES

13) Total percentage holding of issued class following this notification

5.07%

14) Any additional information

N/A


15) Name of contact and telephone number for queries

RACHEL FELL, ASSISTANT COMPANY SECRETARY, COOKSON GROUP PLC - 020 7061 6562

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


RACHEL FELL, ASSISTANT COMPANY SECRETARY, COOKSON GROUP PLC



Date of notification: 6 AUGUST 2003


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