Holding(s) in Company

Cookson Group PLC
09 August 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
STATE STREET NOMINEES LTD.             FIDELITY MANAGEMENT TRUST COMPANY                                     150,000
BROWN BROTHERS HARRIMAN                FIDELITY MANAGEMENT TRUST COMPANY                                      82,200
CHASE NOMINEES LTD.                    FIDELITY INVESTMENT SERVICES LTD.                                  24,325,539
CHASE MANHATTAN BANK LONDON            FIDELITY INVESTMENT SERVICES LTD.                                   7,518,270
RBS TRUST BANK                         FIDELITY PENSION MANAGEMENT                                         1,257,229
NORTRUST NOMINEES LTD.                 FIDELITY PENSION MANAGEMENT                                           303,100
BT GLOBENET NOMINEES LTD.              FIDELITY PENSION MANAGEMENT                                           103,800
CITIBANK                               FIDELITY PENSION MANAGEMENT                                           183,300
CHASE NOMINEES LTD.                    FIDELITY PENSION MANAGEMENT                                         3,781,000
BANK OF NEW YORK LONDON                FIDELITY PENSION MANAGEMENT                                           786,900
NORTHERN TRUST                         FIDELITY PENSION MANAGEMENT                                         1,197,900
HSBC                                   FIDELITY PENSION MANAGEMENT                                           363,800
BANKERS TRUST                          FIDELITY INTERNATIONAL LIMITED                                        196,700
RBS TRUST BANK                         FIDELITY INTERNATIONAL LIMITED                                      3,209,900
CITIBANK                               FIDELITY INTERNATIONAL LIMITED                                        141,200
CHASE NOMINEES LTD                     FIDELITY INTERNATIONAL LIMITED                                      8,714,281
HSBC CLIENT HOLDINGS NOMINEE (UK)      FIDELITY INTERNATIONAL LIMITED                                     35,633,626
LIMITED
CHASE MANHATTAN BANK LONDON            FIDELITY INTERNATIONAL LIMITED                                        113,400
DEUTSCHE BANK                          FIDELITY INTERNATIONAL LIMITED                                      1,114,300
BANK OF NEW YORK LONDON                FIDELITY INTERNATIONAL LIMITED                                     18,186,498
NORTHERN TRUST                         FIDELITY INTERNATIONAL LIMITED                                      2,412,400
MELLON TRUST                           FIDELITY INTERNATIONAL LIMITED                                        238,600
BANK OF NEW YORK BRUSSELS              FIDELITY INTERNATIONAL LIMITED                                        467,573



5) Number of shares/amount of stock acquired

23,103,023 SHARES


6) Percentage of issued class

3.18%

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

6 AUGUST 2002

11) Date company informed

9 AUGUST 2002

12) Total holding following this notification

110,481,516 SHARES

13) Total percentage holding of issued class following this notification

15.19%

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: 9 AUGUST 2002




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