REACH: non-regulatory announcement*

Light Science Technologies Holdings plc

("LSTH", "Light Science", the "Company" or the "Group")

Investor Evening

Light Science Technologies Holdings plc (AIM: LST), the innovative technology and manufacturing business providing real-world solutions targeting issues including global food security and fire safety, announces Simon Deacon, CEO, will be attending and presenting at the Yellowstone Advisory Private Investor evening on Wednesday 13 May 2026.

The event is being held at the offices of Hudson Sandler at 25 Charterhouse Square, London EC1M 6AE and investors can register for the event here. 

If you have any questions about the evening please email [email protected]

For additional information please contact:

Notes to Editors:

About Light Science Technologies Holdings plc (www.lightsciencetechnologiesholdings.com)

Light Science Technologies Holdings plc ("LSTH") operates through three divisions: Passive fire protection ("PFP"); AgTech ("AGT") and contract electronics manufacturing ("CEM"). The Company is involved in the design, manufacturing, and installation of products and customized solutions spanning various industry sectors, with a focus on addressing global challenges related to food security, climate change, and fire protection, the Group is committed to developing robust solutions in these rapidly growing market sectors.

As both an installer and supplier of the fire resistant graphite barrier system Injectclad, the PFP division is strongly positioned to capture a growing proportion of the fire remediation market as the Buildings Safety Regulator ("BSR") backlog unblocks, enabling accelerated conversion of the Company's strong sales pipeline. The Injectaclad system is a solution for the retrospective installation of cavity fire barriers in buildings using a pumped system, thereby avoiding the need for full-scale façade removal. It addresses a significant problem in the UK's built environment, where thousands of buildings require remediation to meet fire safety standards. For more information please visit Cavity Fire Barrier Remediation System | Injectaclad Ltd

The Group's tailored AgTech solutions encompass control systems, grow lights, sensor technology, venting, and irrigation systems, catering to both UK and global customers. Key markets include indoor, vertical, glasshouses, polytunnels, and more recently wider applications in broadacre farming. Driving factors comprise global food and water shortages, a growing population, government policies promoting sustainable growth methods, heightened scrutiny of food production's impact on climate change, and a shift away from processed foods. Key markets span Eastern Europe, the Americas, Australasia, and select locations in the Middle East, with the Company expanding routes to market via low-cost, low risk distribution agreements globally. For more information please visit: Sustainable grow lights and sensor technology - Light Science Technologies

The CEM division excels in designing, procuring, and manufacturing high-quality electronic products, with a specialisation in Printed Circuit Boards. These products find application across diverse sectors such as audio, automotive, electronics, gas detection, lighting, pest control, telecommunications and AgTech. For more information please visit: Home | UK Circuits

The Group is strongly positioned across a range of high growth sectors with proven technologies and solutions. It is increasingly focused on high margin opportunities that will drive cash generation. Furthermore, it is positioned for accelerated growth, targeting larger contracts and increasing recurring revenues - as both legislation and global issues look set to underpin demand for its products, driving the Company towards sustained profitable growth.

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