Business
Director/PDMR Shareholding
Dialight plc announced that its Chair, Neil Johnson, purchased 14,360 ordinary shares at 270.00 pence per share, totaling an investment of £38,776. Following this transaction, Mr. Johnson now holds 111,753 ordinary shares, representing 0.278% of the company's issued share capital. This purchase by a director is generally viewed positively by the market as it indicates confidence in the company's future prospects. Disclaimer*

About this update from Dialight Plc
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 14,360 ordinary shares of 1.89 pence each in the Company (" Ordinary Shares "), each at a price of 270.00 pence. Following this purchase, Neil is interested in a total of 111,753 Ordinary Shares, representing 0.278% of the Company's issued share capital. The information below, set out in accordance with the requirement of Article 19 of the EU Market Abuse Regulation 596/2014 (as incorporated into UK domestic law by the European Union (Withdrawal) Act 2018), provides further details: 1. Details of PDMR / person closely associated: (a) Name: Neil Johnson 2. Reason for the notification: (a) Position / status: Chair (b) Initial notification / amendment: Initial notification 3. Details of the issuer, emission allowance market participant, auction platform, auctioneer or auction monitor (a) Name: Dialight plc (b) LEI: 2138001AD31KKD29Z495 4. Details of the transaction(s): section to be repeated for (i) each type of instrument; (ii) each type of transaction; (iii) each date; and (iv) each place where transactions have been conducted (a) Description of the financial instrument, type of instrument: Identification code: Ordinary Shares GB0033057794 (b) Nature of the transaction: Purchase of Ordinary Shares (c) Price (pence): Volume(s): Volume Price 14,360 270.00 pence (d) Aggregated information: - Aggregate volume: - Price (pence): 14,360 shares 270.00 pence (e) Date of transaction: 11 November 2025 (f) Place of transaction: London Stock Exchange (XLON) Contacts: Dialight plc Tel: +44 (0) 203 058 3525 Laura Walker - 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 and the USA. www.dialight.com. Notes: The person responsible for making this announcement is Laura Walker, Company Secretary of Dialight plc