Diploma Regulatory News (DPLM)

DIPLOMA PLC

12 CHARTERHOUSE SQUARE, LONDON EC1M 6AX

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FOR IMMEDIATE RELEASE

12 November 2014

DIPLOMA PLC

Directorate Change - Chairman

Diploma, the international group of businesses supplying specialised technical products and services, announces that John Rennocks, Chairman, has confirmed that he intends to retire from the Board at the conclusion of the Annual General Meeting on 21 January 2015. John has been Chairman since 2004, having joined the Board in 2002.

The Board now confirms its intention to appoint John Nicholas as Chairman of the Company with effect from the conclusion of the Annual General Meeting on 21 January 2015. John was appointed to the Board in June 2013 and is currently Senior Independent Director, Chairman of the Remuneration Committee and a member of both the Audit and the Nomination Committees.

Commenting, John Rennocks said:

"I have thoroughly enjoyed my time as Chairman of Diploma and I would like to thank my colleagues on the Board, past and present, for their wise counsel and support over the years and to all our Group employees who make a substantial contribution to the success of the Group. I am delighted that in John Nicholas, Diploma has a successful businessman with broad and relevant experience who I am confident will chair the Group well on the next stage of its journey and to further success."

John Nicholas commented:

"I am delighted to be appointed Chairman of Diploma and I look forward to pursuing the Group's current strategy, working with colleagues to deliver further strong growth and increases in shareholder value. John is handing over a well-managed Company with a proven track record and on behalf of the Board, I would like to thank him for his excellent stewardship over the last 10 years."

NOTE TO EDITORS:

John Nicholas is currently non-Executive Director and Chairman of the Audit Committees of Mondi plc and Hunting PLC and Senior Independent Director of Rotork plc. John is also a member of the Financial Reporting Review Panel.

John is a Chartered Certified Accountant with a Masters degree in Business Administration from Kingston University. John has a wealth of business and commercial experience and spent much of his early career in technology-focused international manufacturing and service companies involved in analytical instruments, fire protection and food processing. He has been Group Finance Director of Kidde plc (on its demerger from Williams Holdings) and of Tate & Lyle PLC.