Director/PDMR Shareholding

Diploma PLC
10 December 2007


               DIPLOMA PLC - DIRECTORS' INTERESTS IN SHARES 

Diploma PLC, the international group of specialised distribution businesses, has 
been notified today of the following transactions in the shares of the Company: 
     
1.   Mr JL Rennocks, the Chairman of the Company, has acquired a further 2,000 
     ordinary shares of the Company, following a purchase of shares on Friday, 
     7 December 2007, at 901.5 pence per share. 

2.   Mr BM Thompson, a Director of the Company, has acquired a further 2,000 
     ordinary shares of the Company, following a purchase of shares on Friday, 
     7 December 2007 at 900 pence per share. 


For further enquiries please contact: 

Nigel Lingwood, Group Finance Director                          020 7549 5705 



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