RNS Number : 1871B Dialight PLC 18 March 2025 Dialight plc (the "Company") Director / PDMR Shareholding Dialight plc (LSE: DIA.L), a global leader in sustainable LED lighting for industrial applications, announces it has been notified of the following dealings by a person discharging managerial responsibilities. Neil Johnson, chair of the Company, purchased 1,000 ordinary shares of 1.89 pence each in the Company ("Ordinary Shares"), each at a price of 128.00 pence.  Following this purchase, Neil is interested in a total of 97,393 Ordinary Shares, representing 0.243% of the Company's issued share capital and has met the shareholding requirement (i.e. the holding of not less than £150,000 worth of Dialight shares, calculated as at the relevant purchase date) to qualify as a participant in the Company's 2024 Value Creation Plan. Contacts: Dialight plc Tel: +44 (0) 7740 882227 Richard Allan - General Counsel & Company Secretary About Dialight: Dialight (LSE: DIA.L) is a global leader in sustainable LED lighting for industrial applications. Dialight's LED products are providing the next generation of lighting solutions that deliver reduced energy consumption and create a safer working environment. Our products are specifically designed to provide superior operational performance, reliability and durability, reducing energy consumption and ongoing maintenance and achieving a rapid return on investment. The company is headquartered in the UK with operations in Australia, Dubai, Germany, Malaysia, Mexico, Singapore, the UK and the USA. www.dialight.com. Notes: The person responsible for making this announcement is Richard Allan, General Counsel & Company Secretary of Dialight plc 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 DSHGPUQGWUPAGMR