Holding(s) in Company

Diploma PLC
3 September 2003


Letter to Diploma Plc
Dated September 2, 2003

Amendment #1

NOTIFICATIONS UNDER SECTIONS 198 TO 202 -- UK COMPANIES ACT

1. Company in which shares are held: Diploma Plc

2. Notifiable Interest: Ordinary Shares

           Fidelity International Limited (FIL)
           P.O. Box HM 670
           Hamilton HMSX, Bermuda

           Parent holding company for various direct and indirect subsidiaries,
           including Fidelity Investment Services Ltd. (FISL), investment 
           managers for various non-US investment companies and institutional
           clients. (See Schedule A for listing of Registered Shareholders 
           and their holdings.)

3.     The notifiable interests also comprise the notifiable interest of:

           Mr Edward C Johnson 3d
           82 Devonshire Street
           Boston, MA 02109

           A principal shareholder OF Fidelity International Limited.

4.     The notifiable interests include interest held on behalf of authorized
       unit trust schemes in the U.K., notwithstanding the exemption from 
       reporting pursuant to Section 209 (1) (h) of the Companies Act 1985.

5.     These notifications of disclosable interests constitute separate
       notifications of interest in the shares and are combined solely for 
       the purposes of clarity and efficiency. Nothing herein should be taken to 
       indicate that Fidelity International Limited and its direct and indirect 
       subsidiaries, or Mr Edward C. Johnson 3d act as a group or in concert in 
       respect of the disclosed interests, or that they are required to submit 
       these notifications on a joint basis.

6.     The disclosable interests arise under section 208(4) (b) of the Act,
       namely where a person, not being the registered holder, is entitled
       to exercise a right conferred by the holding of the shares or to 
       control the exercise of such rights, or under section 203 of the Act
       respectively.

SCHEDULE A

SECURITY: Diploma Plc                                            Amendment # 1

                      SHARES HELD   MANAGEMENT  NOMINEE/REGISTERED
                                     COMPANY    NAME
(Ordinary Shares)
                        1,407,612   FISL        Chase Manhattan Bank London
                           12,400   FIL         Brown Brothers Harriman Ltd. LUX
                          148,300   FIL         Chase Manhattan Bank London
                           23,300   FIL         State Street Bank & Trust

TOTAL ORDINARY SHARES:  1,591,612

CURRENT OWNERSHIP 
PERCENTAGE:                  7.03%

SHARES IN ISSUE:       22,647,910

Change in holdings since 
last filing:             +646,074


Letter from Fidelity Management & Research Company


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