Directorate change

THE INFORMATION CONTAINED WITHIN THIS ANNOUNCEMENT IS DEEMED BY THE COMPANY TO CONSTITUTE INSIDE INFORMATION AS STIPULATED UNDER THE MARKET ABUSE REGULATION (EU NO. 596/2014) AS IT FORMS PART OF UK DOMESTIC LAW PURSUANT TO THE EUROPEAN UNION (WITHDRAWAL) ACT 2018, AS AMENDED. UPON THE PUBLICATION OF THIS ANNOUNCEMENT VIA A REGULATORY INFORMATION SERVICE, THIS INFORMATION IS CONSIDERED TO BE IN THE PUBLIC DOMAIN.

Light Science Technologies Holdings plc

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

Directorate Change

Light Science Technologies Holdings plc (AIM: LST), the innovative technology and manufacturing business providing real-world solutions targeting issues including fire safety and global food security, announces that Simon Deacon has stepped down from his role as Chief Executive Officer and a Director of the Company with immediate effect.

Andrew Hempsall, Chief Operating Officer of Light Science, has been appointed interim Chief Executive Officer of the Company with immediate effect.

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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"); contract electronics manufacturing ("CEM") and AgTech (“AGT”). 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 fire protection, food security and climate change, 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 Injectaclad, 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 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'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 the UK, 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 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.