Holding(s) in Company

Diploma PLC
06 March 2006



     FOR IMMEDIATE RELEASE


                                                                   6 March 2006

     Dear Sirs

     We received a letter today from Barclays PLC notifying us of their interest
     in 4.62% of the Company's issued share capital.

     Yours faithfully


     NP Lingwood

     Company Secretary




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