Investor Event

DIPLOMA PLC

12 CHARTERHOUSE SQUARE, LONDON EC1M 6AX

TELEPHONE: +44 (0)20 7549 5700

FACSIMILE: +44 (0)20 7549 5715

FOR IMMEDIATE RELEASE

10 September 2013

DIPLOMA PLC

INVESTOR EVENT

Diploma PLC, the international group of businesses supplying specialised technical products and services, is today hosting a site visit for North American investors to one of its Healthcare operations, based in Toronto, Canada. The visit will include presentations from the senior management of the Healthcare businesses, including some background on the Canadian and Australian Healthcare markets.

No discussion of financials or current trading shall take place during the site visit and copies of the Company's presentation materials will be made available after the event at www.diplomaplc.com.

For further information, please contact: