Business
AIM Rule 17 and Schedule 2(g) Update
SDI Group PLC announced an update regarding director's disclosure for David Tilston, a Non-Executive Director, pursuant to AIM Rule 17. A company where Mr. Tilston previously served as a director, Ocean Harvest Technology Group plc, entered creditors' voluntary liquidation on October 6, 2025. Mr. Tilston had resigned from his director position at Ocean Harvest Technology Group plc on May 21, 2025. Disclaimer*

About this update from Sdi Group Plc
SDI Group plc ("SDI", the "Company", or the "Group") AIM Rule 17 and Schedule 2(g) Update 7 October 2025 - SDI Group plc (AIM: SDI), the buy and build group, focused on companies which design and manufacture specialist lab equipment, industrial & scientific sensors and industrial & scientific products, announces the following update in relation to directors' disclosure for David Tilston, Non-Executive Director of the Company, pursuant to AIM Rule 17 and Schedule 2(g) of the AIM Rules for Companies. Ocean Harvest Technology Group plc, a company of which David Tilston was a director, until his resignation on 21 May 2025, was placed into creditors' voluntary liquidation on 6 October 2025. Enquiries: SDI Group plc Stephen Brown, Chief Executive Officer Amitabh Sharma, Chief Financial Officer +44 (0)1223 727144 www.sdigroup.com Cavendish Capital Markets Ltd (NOMAD & broker) Ed Frisby / Seamus Fricker - Corporate Finance Andrew Burdis / Sunila de Silva - ECM +44 (0)20 7220 0500 Stifel ( Joint Corporate Broker) Fred Walsh / Brough Ransom / Ben Good +44 (0) 20 7710 7600 Vigo Consulting (Financial Communications) Tim McCall / Rozi Morris / Fiona Hetherington +44 (0)20 7390 0230 [email protected] About SDI Group plc SDI Group plc is a group of small to medium size companies with specialist industrial and scientific products in growth sector niches which help solve customers' key challenges. It specialises in the acquisition and development of companies that design and manufacture specialist products for use in lab equipment, industrial & scientific sensors and industrial & scientific products. Its portfolio of businesses supplies the life sciences, healthcare, plastics and packaging, manufacturing, precision optics and measurement instrumentation markets. SDI aims to continue its growth through driving the organic growth of its portfolio companies and by the acquisition of complementary technology businesses with established reputations in global markets. For more information, please see: www.SDIGroup.com