Holding(s) in Company

Cookson Group PLC
18 April 2002


                                  SCHEDULE 10

                   NOTIFICATION OF MAJOR INTERESTS IN SHARES

1) Name of company

COOKSON GROUP PLC

2) Name of shareholder having a major interest

FIDELITY INTERNATIONAL LIMITED

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

NON-BENEFICIAL INTEREST

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

REGISTERED NAME                         MANAGEMENT COMPANY                                            NUMBER OF SHARES

CHASE NOMINEES LTD.                     FIDELITY INVESTMENT SERVICES LTD.                                   20,302,439
CHASE MANHATTAN BANK LONDON             FIDELITY INVESTMENT SERVICES LTD.                                    9,473,368
RBS TRUST BANK                          FIDELITY PENSION MANAGEMENT                                          1,199,000
NORTRUST NOMINEES LTD.                  FIDELITY PENSION MANAGEMENT                                            200,000
BT GLOBENET NOMINEES LTD.               FIDELITY PENSION MANAGEMENT                                            111,000
CITIBANK                                FIDELITY PENSION MANAGEMENT                                            196,000
CHASE NOMINEES LTD.                     FIDELITY PENSION MANAGEMENT                                          3,709,400
BANK OF NEW YORK LONDON                 FIDELITY PENSION MANAGEMENT                                            841,500
NORTHERN TRUST                          FIDELITY PENSION MANAGEMENT                                          1,123,000
HSBC                                    FIDELITY PENSION MANAGEMENT                                            349,800
BANKERS TRUST                           FIDELITY INTERNATIONAL LIMITED                                         210,300
RBS TRUST BANK                          FIDELITY INTERNATIONAL LIMITED                                       2,353,300
CITIBANK                                FIDELITY INTERNATIONAL LIMITED                                         151,000
CHASE NOMINEES LTD                      FIDELITY INTERNATIONAL LIMITED                                       8,252,809
HSBC CLIENT HOLDINGS NOMINEE (UK)       FIDELITY INTERNATIONAL LIMITED                                      26,242,619
LIMITED
CHASE MANHATTAN BANK LONDON             FIDELITY INTERNATIONAL LIMITED                                          27,900
DEUTSCHE BANK                           FIDELITY INTERNATIONAL LIMITED                                       1,027,700
BANK OF NEW YORK LONDON                 FIDELITY INTERNATIONAL LIMITED                                       2,490,200
NORTHERN TRUST                          FIDELITY INTERNATIONAL LIMITED                                       2,068,000



5) Number of shares/amount of stock acquired

NOT DISCLOSED


6) Percentage of issued class

NOT DISCLOSED

7) Number of shares/amount of stock disposed

N/A


8) Percentage of issued class

N/A


9) Class of security

ORDINARY SHARES OF 50 PENCE EACH

10) Date of transaction

16 APRIL 2002

11) Date company informed

18 APRIL 2002

12) Total holding following this notification

80,329,335 SHARES

13) Total percentage holding of issued class following this notification

11.04%

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: 18 APRIL 2002



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