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Haffner Energy lists on Euronext Growth Paris


  • €71.7 million raised
  • Market capitalisation of €358 million
  • 164th cleantech listed on Euronext

Paris – 15 February 2022 – Euronext today congratulates Haffner Energy, a leading player in decarbonisation and green hydrogen, on its listing on Euronext Growth Paris (ticker code: ALHAF).

Haffner Energy specialises in the design, construction and marketing of technologies combining green hydrogen production and carbon capture. Haffner Energy provides industry and mobility providers with its HYNOCA® technology, based on a “hydrogen no carbon” process using thermolysis and steam reforming of sustainable biomass. Through its Initial Public Offering (IPO), Haffner Energy aims to accelerate its industrial strategy and to market at international level its hydrogen production technology with a negative carbon footprint.

Haffner Energy was listed through the admission to trading on 15 February 2022 of the 44,693,457 shares making up its equity and of 8,342,857 new shares issued under a Global Offering1, after the partial exercise of the extension option for 625,000 existing shares and before the potential exercise of the over-allotment option.

The admission and issue price of Haffner Energy shares was set at €8.00 per share. Market capitalisation was €358 million on the day of listing. The offering was a success with international, institutional and individual investors, raising €71.7 million.

Philippe Haffner, co-founder and CEO of Haffner Energy, said: “It is with pride and enthusiasm that we celebrate our IPO on Euronext Growth today. HYNOCA® enables industrial and mobility players to produce green hydrogen while capturing carbon, which corresponds to 12 kg of CO2 per kg of hydrogen. This technology is highly disruptive on a global scale, while being already very competitive compared to hydrogen produced from fossil fuels. This IPO will support the achievement of our high-growth objectives. We plan to accelerate our investments in order to quickly set up significant industrial production capacities which will be combined with an international commercial deployment, to be as close as possible to our customers.”

Marc Haffner, co-founder and Deputy CEO of Haffner Energy, commented: “Our patented HYNOCA® technology is the result of more than ten years of R&D by Haffner Energy's teams. Our technology is based on the use of sustainable biomass from unused agricultural and forestry waste that is not used elsewhere; in other words, a natural resource that is abundant, present everywhere and generally accessible within the radius of our facilities. All these elements give HYNOCA® its disruptive potential by producing a 100% green, carbon-negative hydrogen that is perfectly suited for the energy transition.”

Haffner Energy

Caption: Philippe Haffner, co-founder and CEO of Haffner Energy, Marc Haffner, co-founder and Deputy CEO, and their team rang the bell during a ceremony this morning, in the presence of Alexis Janin, Director Listing, Auvergne Rhône-Alpes, Bourgogne Franche-Comté and Grand Est regions (France) at Euronext, to celebrate the IPO of the company.


About Haffner Energy Haffner Energy has developed the innovative HYNOCA® process, protected by 14 patent families, making it possible to produce renewable hydrogen from biomass residues. Haffner Energy has 25 years’ experience in the engineering and turnkey construction (EPC) of power plants producing energy from biomass and waste. Haffner Energy has built nearly 30 power plants in several European countries. More info:

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