Holding(s) in Company

Diploma PLC
14 February 2003


Letter to Diploma PLC

Disclosure of Interest in shares

Consequent upon a transfer into management of 28,991 shares on the 12 February
2003, Legal & General Group Plc now own the following number of shares which are
not subject to a concert party and will be registered as follows:
 
Material Interest

HSBC Global Custody Nominee (UK) Ltd A/c 775245     100,000
HSBC Global Custody Nominee (UK) Ltd A/C 357206     635,708
HSBC Global Custody Nominee (UK) Ltd A/c 747381      44,800
HSBC Global Custody Nominee (UK) Ltd A/c 866203      32,517
HSBC Global Custody Nominee (UK) Ltd A/c 754612     101,000
HSBC Global Custody Nominee (UK) Ltd A/c 360509      19,788
 
                                                    933,813    4.12%

Please note that this percentage is based on our understanding that your issued 
share capital is 22,647,911, which is the figure quoted by Exshare.

Letter from: Legal & General

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