Paris, 22 October 2025 – Elogen, a GTT Group company and technological expert at the service of green hydrogen, and Rockfin, an engineering company specialising in energy and industrial systems, today announced the signing of a Memorandum of Understanding (MoU) aimed at accelerating the deployment of green hydrogen production systems.
As part of this strategic partnership, Elogen will supply its Proton Exchange Membrane (PEM) technology, including both its electrolyser stacks and its modular ModulyserTM design. Rockfin will be responsible for local integration in Poland, the Balance of Plant[1] assembly, and the delivery of turnkey hydrogen solutions across the Europe, Middle East and Africa (EMEA) region. The collaboration also provides for the supply of Elogen stacks to be integrated into electrolysers designed and marketed by Rockfin under its own brand, HyVentive. Together, the two companies will offer competitive, modular solutions with local support, addressing the needs of the industrial, energy and mobility sectors.
This agreement reflects the joint commitment of Elogen and Rockfin to advancing the energy transition and strengthening Europe’s hydrogen value chain through innovation, industrial expertise and a strong regional presence.
Eric Minaux, Managing Director of Elogen, declared: “We are pleased to enter into this partnership with Rockfin, whose industrial expertise and local footprint will play a key role in accelerating the deployment of green hydrogen solutions across the EMEA region. Through this collaboration, we will showcase our ModulyserTM systems and high-performance stacks to provide our customers with efficient, scalable hydrogen production solutions supported locally. “
Michał Wróblewski, CEO of Rockfin, added: “This collaboration marks an important milestone for Rockfin and the growth of Poland’s hydrogen ecosystem. By combining our engineering and integration expertise with Elogen’s advanced PEM technology, we aim to deliver flexible and competitive hydrogen solutions — from individual stacks to complete Modulyser™ systems — providing the industry with robust, safe, and efficient pathways to decarbonisation.”
[1] Balance of Plant: the set of auxiliary equipment supporting the electrolyser, excluding the stacks.
About Elogen
Elogen, a technological expert at the service of green hydrogen, develops cutting-edge technologies to design and produce PEM (Proton Exchange Membrane) electrolysers to meet new uses of hydrogen in mobility, industry and energy storage. Elogen, a company of the GTT group, relies on a powerful R&D and a rigorous manufacturing process to provide its customers with competitive, reliable systems tailored to their needs. The technological solutions developed by Elogen, particularly suitable for renewable energies, demonstrate high efficiency and performance.
More information on elogenh2.com
Media contact: communication@gtt.fr / +33 (0)6 31 62 23 48
Investor Relations contact: information-financiere@gtt.fr / + 33 (0)1 30 23 20 87
About Rockfin
Rockfin is a Polish engineering company specializing in the design and integration of high-performance industrial systems for the energy, oil & gas, and process industries. Building on decades of engineering expertise, Rockfin develops advanced hydrogen system solutions, supporting the energy transition through safe and reliable turnkey technologies.
