Purchase of Own Securities

Diploma PLC
4 December 2001


Diploma PLC has today bought back 2,516,434 of its issued Ordinary Shares of 5p 
each in the market, for cancellation, at a price of 330 pence per share. This 
purchase represents 10% of the Company's issued share capital.

For further enquiries please contact:

Bruce M Thompson, Chief Executive Officer

Nigel P Lingwood, Group Finance Director

Telephone No: 020 7638 0934