Holding(s) in Company

Cookson Group PLC
18 February 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.                        17,424,719
CHASE MANHATTAN BANK LONDON             FIDELITY INVESTMENT SERVICES LTD.                         4,331,470
RBS TRUST BANK                          FIDELITY PENSION MANAGEMENT                               1,109,900
NORTRUST NOMINEES LTD.                  FIDELITY PENSION MANAGEMENT                                 200,000
BT GLOBENET NOMINEES LTD.               FIDELITY PENSION MANAGEMENT                                 106,400
CITIBANK                                FIDELITY PENSION MANAGEMENT                                 196,000
CHASE NOMINEES LTD.                     FIDELITY PENSION MANAGEMENT                               2,552,900
BANK OF NEW YORK LONDON                 FIDELITY PENSION MANAGEMENT                                 696,900
NORTHERN TRUST                          FIDELITY PENSION MANAGEMENT                                 625,200
HSBC                                    FIDELITY PENSION MANAGEMENT                                 286,900
BANKERS TRUST                           FIDELITY INTERNATIONAL LIMITED                              187,300
RBS TRUST BANK                          FIDELITY INTERNATIONAL LIMITED                            1,759,300
CITIBANK                                FIDELITY INTERNATIONAL LIMITED                              137,400
CHASE NOMINEES LTD                      FIDELITY INTERNATIONAL LIMITED                            4,557,109
HSBC CLIENT HOLDINGS NOMINEE (UK)       FIDELITY INTERNATIONAL LIMITED                           21,307,326
LIMITED
CHASE MANHATTAN BANK LONDON             FIDELITY INTERNATIONAL LIMITED                               28,000
DEUTSCHE BANK                           FIDELITY INTERNATIONAL LIMITED                              682,200
BANK OF NEW YORK LONDON                 FIDELITY INTERNATIONAL LIMITED                            1,780,200
NORTHERN TRUST                          FIDELITY INTERNATIONAL LIMITED                              958,100



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

15 FEBRUARY 2002

11) Date company informed

18 FEBRUARY 2002

12) Total holding following this notification

58,927,324 SHARES

13) Total percentage holding of issued class following this notification

8.10%

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 FEBRUARY 2002



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