RNS Number : 9961Q Diploma PLC 23 December 2024 10-11 CHARTERHOUSE SQUARE, LONDON EC1M 6EE TELEPHONE: +44 (0)20 7549 5700 23 December 2024 DIPLOMA PLC (the "Company") DIRECTOR'S INTEREST IN SHARES Diploma PLC  has been notified that on 20 December 2024 Chris Davies, Chief Financial Officer, acquired the beneficial interest in 3,917 Ordinary Shares in the Company at £42.80 per share. The shares were acquired with an amount equal to 50% of Chris' annual bonus, net of tax thereon, which was awarded for FY2024. These shares will be held by the Diploma Employee Benefit Trust on behalf of Chris in accordance with the Company's Shareholding Policy. The Notification of Dealing Form can be found below. This announcement is made in accordance with the UK Market Abuse Regulation. For further information please contact: LEI: 2138008OGI7VYG8FGR19 This information is provided by RNS, the news service of the London Stock Exchange. RNS is approved by the Financial Conduct Authority to act as a Primary Information Provider in the United Kingdom. Terms and conditions relating to the use and distribution of this information may apply. For further information, please contact rns@lseg.com or visit www.rns.com. RNS may use your IP address to confirm compliance with the terms and conditions, to analyse how you engage with the information contained in this communication, and to share such analysis on an anonymised basis with others as part of our commercial services. For further information about how RNS and the London Stock Exchange use the personal data you provide us, please see our Privacy Policy. END DSHZZMZZKGDGDZM