Holding(s) in Company

Cookson Group PLC
05 September 2006

                                  SCHEDULE 10

                   NOTIFICATION OF MAJOR INTERESTS IN SHARES

1) Name of company

COOKSON GROUP PLC

2) Name of shareholder having a major interest

DEUTSCHE BANK AG AND ITS SUBSIDIARIES

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 IN 2 ABOVE

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

DEUTSCHE BANK AG                          5,836,934

5) Number of shares/amount of stock acquired

NOT DISCLOSED

6) Percentage of issued class

NOT DISLOSED

7) Number of shares/amount of stock disposed

n/a

8) Percentage of issued class

n/a

9) Class of security

ORDINARY SHARES OF 10 PENCE EACH

10) Date of transaction

NOT DISCLOSED

11) Date company informed

4 SEPTEMBER 2006

12) Total holding following this notification

5,836,934

13) Total percentage holding of issued class following this notification

3.03%

14) Any additional information

N/A

15) Name of contact and telephone number for queries

RACHEL FELL, DEPUTY SECRETARY, COOKSON GROUP PLC - TEL: [phone]


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

RACHEL FELL, DEPUTY SECRETARY, COOKSON GROUP PLC

Date of notification: 5 SEPTEMBER 2006






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