Q1 2026 Newsletter

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Q1 2026 progress on sulfur battery partnerships, technical results and key appointments announced.

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Gelion (AIM: GELN), the sulfur battery company, is pleased to publish it Q1 2026 newsletter, marking a period of meaningful progress for Gelion, including the advancement of the Company's commercial partnerships, deepening our technical expertise through key appointments and international engagements, and strengthening the culture and community that defines our organisation.

Gelion is seeking to replace the strategic minerals in current Lithium-ion battery cathodes with Gelion's Nano Encapsulated Sulfur (NES™) that are low cost and can be dropped into existing global manufacturing lines. Gelion's NES™ is made from sulfur which is abundantly available and free from supply chain constraints.

Q1 Highlights include:

Exceptional Technical Results and Expansion of Testing with TDK Corporation
Commercial & Technology Highlights:

o Partnership Progress - TDK & QinetiQ

o Additional ARENA Funding Secured

o Analytical Suite Complete

o Exceptional technical results with li-metal and graphitic anode using Gelion's NES™

Announcement of the Company's Interim Report and publication of our half year investor presentation
Appointment of Professor Rachid Yazami as New Technology Advisor

Link to Newsletter: https://mailchi.mp/c4a7b1dc736d/nsas9dckgl-10607025?e=ad8717dde7

For more information, please visit Next-Generation Sulfur Battery Technologies	Gelion or contact:
Gelion plc John Wood, CEO Amit Gupta, CFO	via Tavistock
Strand Hanson Limited (Nominated and Financial Adviser) Christopher Raggett / Rob Patrick / Harry Marshall	+44 (0) 20 7409 3494
Oberon Capital (Joint Broker) Nick Lovering / Mike Seabrook / Adam Pollock	+44 (0) 20 3179 5300
Allenby Capital Limited (Joint Broker) Jos Pinnington / Lauren Wright (Sales and Corporate Broking) Alex Brearley / Ashur Joseph (Corporate Finance)	+44 (0) 20 3328 5656
Tavistock (Financial & Corporate PR) Simon Hudson / Nick Elwes / Saskia Sizen	+44 20 7920 3150 gelion@tavistock.co.uk

Cleaned text: letterheads, contacts and legal notices removed. View the original announcement ↗ · Company filings. Not investment advice.