Holding(s) in Company

Cookson Group PLC 11 March 2002 SCHEDULE 10 NOTIFICATION OF MAJOR INTERESTS IN SHARES 1) Name of company COOKSON GROUP PLC 2) Name of shareholder having a major interest FRANKLIN RESOURCES, INC. 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 ABOVE 4) Name of the registered holder(s) and, if more than one holder, the number of shares held by each of them BANKERS TRUST COMPANY (220,981 SHARES) BANK OF NEW YORK NOMINEES (141,690 SHARES) CHASE NOMINEES LIMITED (57,835,454 SHARES) CITIBANK (70,000 SHARES) CLYDESDALE BANK (1,996,700 SHARES) DEUTSCHE BANK AG (150,372 SHARES) MERRILL LYNCH (2,296,001 SHARES) ROYAL TRUST CORP OF CANADA (8,725,814 SHARES) STATE STREET (865,601 SHARES) 5) Number of shares/amount of stock acquired N/A 6) Percentage of issued class N/A 7) Number of shares/amount of stock disposed NOT DISCLOSED 8) Percentage of issued class NOT DISCLOSED 9) Class of security ORDINARY SHARES OF 50 PENCE EACH 10) Date of transaction 8 MARCH 2002 11) Date company informed 11 MARCH 2002 12) Total holding following this notification 72,302,613 SHARES 13) Total percentage holding of issued class following this notification 9.94% 14) Any additional information N/A 15) Name of contact and telephone number for queries ALAN WALLWORK, ASST COMPANY SECRETARY, COOKSON GROUP PLC - TEL: 020 7766 4537 16) Name and signature of authorised company official responsible for making this notification ALAN WALLWORK, ASST COMPANY SECRETARY, COOKSON GROUP PLC Date of notification 11 MARCH 2002 This information is provided by RNS The company news service from the London Stock Exchange

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