Director/PDMR Shareholding

Diploma PLC
02 December 2005


     FOR IMMEDIATE RELEASE

                                                               2 December 2005

                          DIRECTORS' INTERESTS IN SHARES

     Diploma PLC, the specialised international distribution group, has been
     notified today that the following Directors have become beneficially
     interested in ordinary shares of the Company following purchases made
     yesterday:

                         Number of shares     Price

     JL Rennocks              4,000           £7.01
     BM Thompson             10,000           £6.96
     I Henderson              3,000           £6.93


     For further enquiries please contact:

     Nigel Lingwood, Group Finance Director 020 7448 4875


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