6 January 2025

Gelion plc

("Gelion" or "the Company")

Director appointment - Dr Graham Cooley

Further to the announcement made on 18 December 2024, the Board of Gelion plc, the global energy storage innovator, is pleased to announce the appointment of Dr Graham Cooley, as Non-Executive Director of the Company with immediate effect. Dr Cooley's appointment strengthens the Company's capabilities and corporate governance for the next stage of its growth.

Dr Graham Cooley brings a wealth of relevant experience and knowledge to the Gelion Board through his background in the power, energy storage and hydrogen sectors over more than 35 years. He was previously Business Development Manager at National Power plc, the UK's largest power generator, and CEO of ITM Power plc, the first hydrogen related company quoted on AIM. Dr Cooley has been involved in a wide range of corporate transactions, including ones that have raised over £600m for UK cleantech SMEs. He also has a track record of forging industrial partnerships and entering new markets. He has been an active investor in AIM UK cleantech companies for over a decade and holds a PhD in Materials Physics, an MBA and has several fellowship appointments.

Dr Cooley has been appointed as a member of the Company's Audit Committee and Remuneration Committee.

Steve Mahon, Chairman of Gelion, commented: "I am delighted to be welcoming Graham to the Gelion board. He brings extensive and very relevant experience which will prove invaluable as we continue to progress toward commercialisation of our battery technologies."

John Wood, Chief Executive of Gelion, commented: "Graham brings his exemplary full scope entrepreneurial perspective to the Gelion board, with the combination of the depth of personal understanding he has of delivering successful commercialisation and value development running innovation companies, along with his experience with investment markets. Welcome Graham!"

Further disclosures pursuant to Rule 17 and Schedule Two, paragraph (g) of the AIM Rules for Companies:

Dr Graham Edward Cooley

The following information regarding the appointment of Dr Graham Edward Cooley, aged 61, is disclosed under Schedule 2(g) of the AIM Rules for Companies:

Nanosun Limited entered into director led administration on 6 February 2024 and on the same date, a pre-pack sale of the business and certain assets was completed.

Dr Cooley currently holds 666,666 Ordinary Shares, representing 0.45% of the Company's issued Ordinary Share capital.

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About Gelion

Gelion ("gel: ion") is a global energy storage innovator, supporting the transition to a more sustainable economy by commercialising two globally important next generation technologies: Lithium-Sulfur (LiS) and Zinc-based (Zn) hybrid cells to electrify mobile and stationary applications. Gelion plc (the Group) is listed on the London Stock Exchange's Alternative Investment Market and wholly owns Australia based Gelion Technologies Pty Ltd and UK based OXLiD Ltd. Gelion is designing and delivering innovative battery technologies and integrated systems solutions to enable that transition and return value for its customers and investors.