10 June 2026

H-Power plc

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

Agreement for the sale of two LC30 fuel cell generators to TAMGO for performance and customer trials in Saudi Arabia

Delivery of a programme of product demonstrations and marketing campaigns for the LC30 by TAMGO in-country and other Gulf Cooperation Council countries

H-Power plc (AIM: HPOW), a leading provider of ammonia-based low carbon hydrogen production and hydrogen-to-power solutions at a commercially viable price point, announces that it has signed an agreement for the sale to TAMGO - The Machinery Group LLC, a Zahid Group company - of two LC30's, H-Power's latest fuel cell generator, for operation in the Kingdom of Saudi Arabia.

Under this agreement, the two LC30 fuel cell generators will initially undergo pre-deployment "field follow" trials in Saudi Arabia - a series of performance tests under in-country weather conditions that covers the hottest times of the year - followed by trials with selected TAMGO customers. Over the coming months, TAMGO will also deliver a programme of product demonstrations and marketing campaigns for the LC30 fuel cell generators in Saudi Arabia and other Gulf Cooperation Council (GCC) countries, through demonstrations and customer engagement activities.

Upon successful delivery under the agreement, H-Power believes that this partnership between H-Power and TAMGO has the potential to deliver significant future H-Power revenues from our LC30 fuel cell generators across Saudia Arabia and GCC countries, in which TAMGO is H-Power's exclusive distribution partner for fuel cell generators.

H-Power's LC30 fuel cell generator is rated to operate successfully in temperatures ranging from -20 to +50C, making it suitable for operating in Saudi Arabia and the surrounding region.

John Wilson, CEO of H-Power plc, commented:

"We are delighted to have signed this agreement with TAMGO, which demonstrates its commitment to H-Power's LC30 fuel cell generator product, while highlighting H-Power's confidence in TAMGO's first-class product support, services and solutions for customers focused on construction and infrastructure development, mining and equipment rental services in the region. We are confident that the successful delivery on this initial agreement has strong potential to unlock significant demand from TAMGO's established and growing customer network across Saudia Arabia and other GCC countries, enabling customers and industries to decarbonise their operations."

Rami Elayan, General Manager of TAMGO, commented:

"Following the successful deployment fuel cell technology during the Extreme E and Extreme H events in Saudi Arabia in 2025, the acquisition of these LC30 units represents the next step in our efforts to introduce hydrogen-powered solutions to the Kingdom.

Through a structured field-follow program under Saudi operating conditions, we will work closely with H-Power and selected customers to support the deployment of the LC30 platform across a range of applications while building market confidence in the technology.

Saudi Arabia is making significant investments in energy transition and sustainable infrastructure, and we look forward to continuing our collaboration with H-Power to support the development of hydrogen-powered solutions across the Kingdom and the wider region."

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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

TAMGO - The Machinery Group LLC

TAMGO was established in 1991 as part of Zahid Group's long-standing commitment to supporting the Kingdom of Saudi Arabia's infrastructural development.

TAMGO provides local and regional customers with a diverse range of best-in-class industrial machinery products and services that fall within seven solutions: Construction Machinery Solutions, Portable Power Solutions, Power Solutions, Fire and Water Solutions, Compressed Air Solutions, Material Handling Solutions, Mining Solutions.