
Key Highlights:

Nantes (France) and Munich (Germany), 20 January 2025, 7:30 AM: Lhyfe (Euronext: LHYFE), a pioneering producer and supplier of green and renewable hydrogen for industry and mobility, and Atmen, an integrated compliance automation platform, have decided to collaborate to set a new standard of excellence in carbon footprint traceability and transparency within the hydrogen and Power-to-X (PtX) sectors.
Lhyfe, on the Path to RFNBO* Certification
Since its creation, Lhyfe has strived to meet the highest ecological standards for its hydrogen. It had been eagerly awaiting the approval by the European Commission of the first “RFNBO” (Renewable Fuel of Non-Biological Origin) certification schemes for renewable hydrogen. Following their publication in December 2024, Lhyfe has begun the necessary steps to obtain RFNBO certification for its production.
* The RFNBO certification confirms that hydrogen is produced sustainably (via water electrolysis) and from 100% renewable electricity. It includes a comprehensive carbon footprint assessment of this production process. The certification ensures compliance with the strict criteria defined by the European Union and adherence to the highest environmental standards, thereby strengthening trust among partners, clients, and investors.
With a commitment to maximum transparency and its rapid expansion in multiple European countries, Lhyfe sought to exceed current regulations even before obtaining its RFNBO certification. Thanks to its partnership with Atmen, Lhyfe now has a robust traceability system with unprecedented precision and granularity.
Each delivery of Lhyfe's green hydrogen can now be accompanied by a Digital Product Passport—an innovation that provides a complete and precise description of the carbon footprint of the hydrogen produced, including detailed information:
This collaboration starts with the production unit in Bouin (Vendée, France) and will be extended to other Lhyfe sites.
The company has also initiated steps to obtain RFNBO certification for hydrogen produced at its various sites. Once achieved, the digital passports will include the “RFNBO-compliant” label.
This partnership delivers unparalleled traceability and compliance for Lhyfe’s green hydrogen, equipping clients with the tools needed to align with their emission and decarbonisation goals transparently.
By combining Lhyfe’s expertise in renewable hydrogen production and Atmen’s advanced automation software, this partnership simplifies compliance with strict sustainability regulations such as RFNBO.
“Atmen is thrilled to partner with Lhyfe, one of the most innovative and fastest-growing hydrogen producers in Europe,” said Flore de Durfort, CEO of Atmen. “Together, we are setting a new standard in traceability, enabling the hydrogen sector to meet the strictest sustainability requirements with precision and transparency.”
“Our collaboration with Atmen is a major step in realising our commitment to transparency for our clients, both in terms of sustainability and traceability,” commented Antoine Hamon, Chief Operations Officer at Lhyfe. “With Digital Product Passports, we are enhancing trust in the sustainability of our hydrogen. We invite the sector to align with this practice, which will help develop the industry with the same spirit of trust.”
Lhyfe is a European group devoted to energy transition, and a producer and supplier of green and renewable hydrogen. Its production sites and portfolio of projects seek to provide access to green and renewable hydrogen in industrial quantities, and enable the creation of a virtuous energy model capable of decarbonising entire sectors of industry and transport.
In 2021, Lhyfe inaugurated the first industrial-scale green hydrogen production plant in the world to be interconnected with a wind farm. In 2022, it inaugurated the first offshore green hydrogen production pilot platform in the world.
In 2023, it inaugurated two new sites, and currently has several sites under construction or expansion across Europe.
Lhyfe is represented in 12 European countries and had 200 staff at the end of June 2024. The company is listed on the Euronext market in Paris (ISIN: FR0014009YQ1 – LHYFE). Lhyfe.com
Atmen simplifies and automates green certification for energy-intensive industries through its integrated compliance platform. Atmen enables producers to track renewable energy usage, carbon intensity, and supply chain sustainability with unparalleled precision. By automating complex workflows related to green compliance, Atmen helps industries meet regulatory requirements efficiently and transparently.
For more information, visit atmen.co

Munich – 30. October, 2025 – Siemens and Atmen have signed a Global Strategic Partnership Agreement (GSPA) to jointly promote interoperable digital and compliance solutions for green hydrogen and Power-to-X (PtX) projects.
The partnership combines Siemens’ digital capabilities with Atmen’s regulatory automation platform to jointly promote solutions that support compliant power-to-X supply chain development. By aligning digital plant design with certification requirements from the start, the two companies aim to help developers accelerate readiness for evolving schemes and standards, such as those included in the EU Renewable Energy Directive.
“Atmen’s modules could now integrate seamlessly with Siemens’ digital twin and control tower technologies, turning scattered data into a continuous flow,” said Flore de Durfort, CEO of Atmen.
“Siemens’ tools assist companies in building and operating smart supply chains and testing scenarios. Paired with Atmen’s certification platform, engineers and procurement teams get the info needed to stay compliant, resilient, and ensure products meet standards.”
The agreement establishes a structured collaboration between the two companies. Siemens and Atmen seek to coordinate on a shared pipeline of opportunities, align early in tenders and strategic projects, and participate jointly in selected trade fairs and customer engagements.

A bi-annual steering committee, led by senior managers from both companies, aims to review market trends and collaboration opportunities. A dedicated working group then facilitates coordination on ongoing business development and portfolio alignment.
“Our partnership aspires for innovation, credibility, traceability and sustainability from design through operation,” said Peter Ammann, Head of Center of Competence for Siemens’ Hydrogen business.
“Siemens’ and Atmen’s strengths combined pave the way for green hydrogen’s end-to-end value chain becoming a cornerstone of a decarbonized global energy system.”
The partnership is non-exclusive and does not involve technology integration at this stage. Instead, both companies will continue to develop their respective platforms independently, while enabling interoperability in customer projects of mutual interest and involvement.
Together, Siemens and Atmen aim to significantly reduce project risk, lower the levelized cost of hydrogen (LCOH), and enhance trust in the traceability and sustainability of hydrogen and PtX projects across Europe and beyond.

About Siemens
Siemens AG (Berlin and Munich) is a leading technology company focused on industry, infrastructure, mobility, and healthcare. The company’s purpose is to create technology to transform the everyday, for everyone. By combining the real and the digital worlds, Siemens empowers customers to accelerate their digital and sustainability transformations, making factories more efficient, cities more livable, and transportation more sustainable. A leader in industrial AI, Siemens leverages its deep domain know-how to apply AI – including generative AI – to real-world applications, making AI accessible and impactful for customers across diverse industries. Siemens also owns a majority stake in the publicly listed company Siemens Healthineers, a leading global medical technology provider pioneering breakthroughs in healthcare. For everyone. Everywhere. Sustainably. In fiscal 2024, which ended on September 30, 2024, the Siemens Group generated revenue of €75.9 billion and net income of €9.0 billion. As of September 30, 2024, the company employed around 312,000 people worldwide on the basis of continuing operations. Further information is available on the Internet at www.siemens.com.
About Atmen
Atmen (atmen.co) is a regulatory technology company providing the data infrastructure that powers the trusted certification of industrial products. Atmen focuses on automating certification and enabling large-scale, verifiable supply chain transparency across energy-intensive industries.
Founded in January 2023 by energy and regulation experts Flore de Durfort, Quentin Cangelosi, and Erika Degoute, Atmen has raised €6.3M to date to build technology that certifies industrial goods, starting with clean fuels.
Headquartered in Munich, the company's platform is deployed across industrial sites in 9 countries, automating certification workflows and enabling verifiable proof of product attributes throughout the supply chain.


At Atmen, we build the data infrastructure that enables certification of clean industrial supply chains. That means working with some of the most sensitive information our customers hold: real operational data. A recurring question we hear is simple but crucial — “If we entrust you with this data, how do we know it’s secure?”
Today, we can give a clear and independent answer. Atmen has achieved ISO 27001 certification, the globally recognized standard for information security management.
ISO27001 is the benchmark for how companies manage, protect, and audit data. It requires a systematic approach to information security across people, processes, and technology. Earning this certification is proof that Atmen meets international best practices for confidentiality, integrity, and availability of information.

ISO27001 is assurance that compliance automation at scale does not come at the expense of security. For our customers, it means:
Certification is not a one-off milestone. ISO27001 requires ongoing governance and annual audits by independent assessors. For Atmen, it’s part of a broader commitment: embedding security into every layer of our technology and operations as we scale.
This achievement reinforces Atmen’s mission to enable secure, scalable certification across Europe’s clean energy supply chains. Security and scalability don’t have to be in conflict — and ISO27001 is proof.
Read more about this topic and get all the details in our Trust Center.