26 August 2026

H-Power plc

("H-Power" or the "Company")

LC30 Fuel Cell Generator

Attestation of Conformity for Issuance of the CE Mark

H-Power plc (AIM: HPOW), a leading provider of ammonia-based low carbon hydrogen production and hydrogen-to-power solutions, announces that its LC30 fuel cell generator has received an Attestation of Conformity from TÜV SÜD, the German certification agency.

TÜV SÜD is a globally recognised and respected independent certification body. Its Attestation of Conformity confirms that the LC30 meets the applicable safety and performance standards required for issuance of the CE Mark. The CE Mark is a prerequisite for commercial product sales into Europe and is also recognised in the UK and other international markets.

The receipt of the attestation in August 2026 is in line with the Company's previously stated timetable and represents a further delivery milestone as H-Power moves the LC30 towards commercial deployment.

John Wilson, CEO of H-Power plc commented:

"We are delighted to have received the independent attestation in August 2026 on time and as planned. The receipt of such attestation fulfils the CE certification requirement set out in the 15 LC30 fuel cell generator replenishment order received from Speedy Hire plc for our Speedy Hydrogen Solutions joint venture and provides other partners and customers with assurance that the LC30 fuel cell generator complies with applicable EU health, safety, performance and environmental standards, which are also recognised in the UK and other international markets."

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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://h-power.co.uk and follow us on LinkedIn