Director/PDMR Shareholding

DIPLOMA PLC

12 CHARTERHOUSE SQUARE, LONDON EC1M 6AX

TELEPHONE: +44 (0)20 7549 5700

FACSIMILE: +44 (0)20 7549 5715

FOR IMMEDIATE RELEASE

23 September 2015

DIPLOMA PLC - DIRECTOR'S INTEREST IN SHARES

Diploma PLC has been notified that on 23 September 2015, Mr Charles Packshaw, the Senior Independent non-Executive Director of the Company, purchased 1,500 Ordinary Shares in the Company at 625 pence per share.

For further information, please contact:

Diploma PLC -

Anthony Gallagher, Group Company Secretary 020 7549 5700