Director/PDMR Shareholding

Diploma PLC
26 October 2005


NEWSRELEASE                       DIPLOMA PLC
              

                                                          FOR IMMEDIATE RELEASE

                                                                26 October 2005


                  DIPLOMA PLC - DIRECTORS' INTERESTS IN SHARES

       Diploma PLC, the international specialised distribution group, has
       today been notified that the following Directors have received the
        following number of ordinary shares in the Company in respect of
         Matching Awards which have vested, pursuant to the Diploma PLC
                        2003 Bonus Share Matching Plan.


                            No. of Ordinary              Market Price at date 
                            Shares                       of Vesting

              BM Thompson      12,643                    £6.40
              I Henderson       4,863                    £6.40


         The shares were transferred to the Directors by Ogier Employee
        Benefit Trustee, as trustee of the Diploma Employee Benefit Trust
        ('the Trust'). Accordingly the number of ordinary shares in the
          Company held by the Trust has, following this transfer, been
                          reduced by 17,506 to 165,523.

         Each of the Executive Directors of the Company, BM Thompson, I
       Henderson, NP Lingwood, is deemed to be beneficially interested in
        all the shares held in the Trust from time to time by virtue of
                 being a potential beneficiary under the Trust.



              For further enquiries please contact:

              Bruce Thompson, Chief Executive Officer     020 7638 0934
              Nigel Lingwood, Group Finance Director      020 7448 4875




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