Director/PDMR Shareholding

DIPLOMA PLC

NOTIFICATION OF TRANSACTION OF DIRECTORS, PERSONS DISCHARGING MANAGERIAL RESPONSIBILITY ("PDMR") OR CONNECTED PERSON

Diploma PLC, the international group of specialised distribution businesses, has been informed that Ogier Employee Benefit Trustee Limited, as trustee of the Diploma Employee Benefit Trust, has purchased 250,000 ordinary shares in the Company at a price of £1.78.

Each of the Executive Directors of the Company, BM Thompson, I Henderson and NP Lingwood, is deemed to be beneficially interested in all the shares held in the Trust from time to time by virtue of being a potential beneficiary under the Trust.

For further enquiries please contact:

Nigel Lingwood, Group Finance Director 020 7549 5705