Diploma Regulatory News (DPLM)

DIPLOMA PLC

12 CHARTERHOUSE SQUARE, LONDON EC1M 6AX

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22 JULY 2021

DIPLOMA PLC

CHAIRMAN RETIREMENT

Diploma PLC announces that John Nicholas has indicated his intention to retire as Chairman of the Company in the early part of 2022. John, who has served on the Board for eight years, with more than six years as Chairman, has overseen its successful evolution with the appointment of both executive and non-executive directors.

A process to select and appoint a successor has already commenced, led by Anne Thorburn, the Senior Independent Director.

Johnny Thomson, Chief Executive Officer of Diploma, commented: 'On behalf of the Board, I would like to express our thanks to John for his service over the past eight years. Under his leadership, Diploma has enjoyed a period of considerable growth and value creation, and we wish him all the best for the future.'

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Further information on Diploma PLC can be found at www.diplomaplc.com

LEI: 2138008OGI7VYG8FGR19