12 May 2026

AFC Energy Plc

("AFC Energy" or the "Company")

Change of Name to H-Power plc

AIM Rule 26 Website Change

Following shareholder approval of the proposed change of the Company's registered name at the Company's Annual General Meeting held on 16 April 2026, the Company announces that Companies House has issued a Certificate of Incorporation on Change of Name and accordingly the registered name of the Company is now H-Power plc.

With effect from 8:00 a.m. tomorrow, 13 May 2026, trading on AIM will commence under the Company's new registered name and the new Tradable Instrument Display Mnemonic (TIDM) will be HPOW (previously AFC). The Company's ISIN GB00B18S7B29 and LEI 213800SRJST19GNS9U35 remain unchanged.

Shareholders are unaffected by the changes and existing share certificates will remain valid and should be retained.

In order to reflect the Company's new name, the Company's website address will be changed to www.h-power.co.uk with effect from 8:00am on 14 May 2026. The information required pursuant to AIM Rule 26 will be available at this address.

FOR FURTHER INFORMATION, PLEASE CONTACT:

ABOUT H-POWER

H-Power plc (formerly known as AFC Energy Plc) is a leading provider of ammonia-based low carbon hydrogen production and hydrogen-to-power solutions. Our market-leading decentralised ammonia cracker and fuel cell generator products are engineered to unlock the low carbon hydrogen market by meeting customers' needs with scalable, reliable supplies of low carbon hydrogen and power. H-Power is enabling customers to decarbonise at a price that is commercially viable.

We are focused on the successful commercial rollout of our core product suite and on creating significant shareholder value by converting our growing opportunity pipeline into contracted orders and delivering sustained revenue growth.

Our core strategy is to develop and deploy products that enable the production of scalable, reliable supplies of clean hydrogen at commercially viable prices and without reliance on government subsidies or incentives. H-Power achieves this through our proprietary, decentralised and modular ammonia cracker technology, and providing low carbon, off‑grid power solutions with our fuel cell generators that are competitive with, and capable of displacing, diesel generators on a total cost of ownership basis.

The Company's modular, decentralised ammonia cracker systems have production capacities of approximately 0.5 and 4 tonnes of hydrogen per day respectively. These enable the generation of scaled volumes of low carbon hydrogen at the point of use within a highly compact footprint. Our systems have the potential to drive substantial revenue growth across a wide range of addressable markets, including hard‑to‑abate industrial facilities, transportation and power generation applications.

H-Power's fuel cell generator systems are currently offered with generation capacities of 30 kW and 200 kW. They are well-suited to off‑grid, decentralised and temporary power applications, including the displacement of diesel generators on construction and infrastructure sites. Further use cases include electric vehicle charging for cars, buses and trucks, as well as charging of battery‑powered non‑road machinery, with additional emerging opportunities in maritime, data centre and rail applications.

H-Power is listed on the London Stock Exchange's AIM Market and headquartered in Dunsfold, Surrey, UK.

Please read more on our website https://www.afcenergy.com/, to be replaced by https://h-power.co.uk on 14 May 2026 and follow us on LinkedIn: https://www.linkedin.com/company/afc-energy/, changing imminently to https://www.linkedin.com/company/h-power/