Notice of Results

Diploma PLC
21 April 2008


   12 CHARTERHOUSE SQUARE, LONDON EC1M 6AX
   TELEPHONE: [phone]
   FACSIMILE: [phone]


   FOR IMMEDIATE RELEASE

                                                                   21 April 2008

                                  DIPLOMA PLC
                                        
                    NOTIFICATION OF 2008 HALF YEARLY REPORT
                                        
   Diploma PLC, the international group of specialised distribution businesses,
   will announce its Half Yearly Report for the six month period ended 31 March
   2008 on Monday, 12 May 2008.

   There will be an analyst presentation of the results at the offices of
   Bankside Consultants Limited, 1 Fredrick's Place, London, EC2R 8AE, at 9.00am
   on that day.


   For further information, please contact:


   Bruce Thompson, Chief Executive Officer               020 7549 5700
   Nigel Lingwood, Group Finance Director                020 7549 5705
   Ian Seaton/Simon Bloomfield, Bankside Consultants     020 7367 8891/8861



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