Holding(s) in Company

Cookson Group PLC
9 July 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.                                  21,115,839
CHASE MANHATTAN BANK LONDON            FIDELITY INVESTMENT SERVICES LTD.                                  11,340,470
RBS TRUST BANK                         FIDELITY PENSION MANAGEMENT                                         1,344,529
NORTRUST NOMINEES LTD.                 FIDELITY PENSION MANAGEMENT                                           324,100
BT GLOBENET NOMINEES LTD.              FIDELITY PENSION MANAGEMENT                                           111,000
CITIBANK                               FIDELITY PENSION MANAGEMENT                                           196,000
CHASE NOMINEES LTD.                    FIDELITY PENSION MANAGEMENT                                         4,054,200
BANK OF NEW YORK LONDON                FIDELITY PENSION MANAGEMENT                                           841,500
NORTHERN TRUST                         FIDELITY PENSION MANAGEMENT                                         1,281,100
HSBC                                   FIDELITY PENSION MANAGEMENT                                           389,100
BANKERS TRUST                          FIDELITY INTERNATIONAL LIMITED                                        210,300
RBS TRUST BANK                         FIDELITY INTERNATIONAL LIMITED                                      3,441,300
CITIBANK                               FIDELITY INTERNATIONAL LIMITED                                        151,000
CHASE NOMINEES LTD                     FIDELITY INTERNATIONAL LIMITED                                      9,086,009
HSBC CLIENT HOLDINGS NOMINEE (UK)      FIDELITY INTERNATIONAL LIMITED                                     26,604,126
LIMITED
CHASE MANHATTAN BANK LONDON            FIDELITY INTERNATIONAL LIMITED                                        124,820
DEUTSCHE BANK                          FIDELITY INTERNATIONAL LIMITED                                      1,182,100
BANK OF NEW YORK LONDON                FIDELITY INTERNATIONAL LIMITED                                      2,853,400
NORTHERN TRUST                         FIDELITY INTERNATIONAL LIMITED                                      2,489,000
MELLON TRUST                           FIDELITY INTERNATIONAL LIMITED                                        238,600



5) Number of shares/amount of stock acquired

7,049,158 SHARES


6) Percentage of issued class

0.97%

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

3 JULY 2002

11) Date company informed

9 JULY 2002

12) Total holding following this notification

87,378,493 SHARES

13) Total percentage holding of issued class following this notification

12.01%

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 JULY 2002



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