Holding(s) in Company

Diploma PLC
20 June 2006



     FOR IMMEDIATE RELEASE

                                                                   20 June 2006

     Dear Sirs

     We received a letter today from Fidelity International Limited notifying us
     of their interest in 6.93% of the Company's issued share capital.

     Yours faithfully



     NP Lingwood
     Company Secretary




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