Capital Markets Day

DIPLOMA PLC

12 CHARTERHOUSE SQUARE, LONDON EC1M 6AX

TELEPHONE: +44 (0)20 7549 5700

FACSIMILE: +44 (0)20 7549 5715

FOR IMMEDIATE RELEASE

1 February 2017

DIPLOMA PLC

ANALYST AND INVESTOR PRESENTATION

Diploma PLC, the international group of businesses supplying specialised technical products and services, will be holding a Capital Markets Day for investors and analysts this morning in London.

This event will include presentations from members of Diploma's Executive Management Group (EMG) on each of the Group's Sector businesses: Life Sciences, Seals and Controls.

No new material information will be provided during the presentations, which will be made available on the Company's website, www.diplomaplc.com, on completion of the event.

NOTE TO EDITORS:

Diploma PLC is an international group of businesses supplying specialised technical products and services to the Life Sciences, Seals and Controls industries.

Diploma's businesses are focussed on supplying essential products and services which are funded by the customers' operating rather than their capital budgets, providing recurring income and stable revenue growth.

Our businesses then design their individual business models to closely meet the requirements of their customers, offering a blend of high quality customer service, deep technical support and value adding activities. By supplying essential solutions, not just products, we build strong long term relationships with our customers and suppliers, which support attractive and sustainable margins.

Finally we encourage an entrepreneurial culture in our businesses through our decentralised management structure. We want our managers to feel that they have the freedom to run their own businesses, while being able to draw on the support and resources of a larger group. These essential values ensure that decisions are made close to the customer and that the businesses are agile and responsive to changes in the market and the competitive environment.

The Group employs ca. 1,600 employees and its principal operating businesses are located in the UK, Northern Europe, North America and Australia.

Over the last five years, the Group has grown adjusted earnings per share at an average of ca. 8% p.a. through a combination of organic growth and acquisitions. Diploma is a member of the FTSE 250 with a market capitalisation of ca. £1.2bn.