
Sustainable iron.
Greener steel.
We aim to produce hydrogen-based low-carbon iron to offer a new value chain and accelerate the decarbonization of the steel industry.

GravitHy embodies a new generation of industrial plants
Connected to low-carbon energies, integrated in a strategic port hub, designed to meet the challenges of industrial and climate sovereignty: GravitHy is the alliance of technology, impact and European ambition to build the steel industry of tomorrow.
Our industrial project
in Fos-sur-mer
Investment
Of HBI (Hot Briquetted Iron) produced
Direct jobs created
Throughout the entire steel production process, our reduced iron allows steelmakers to reduce CO₂ emissions related to their industrial activity by more than 90%.
Of CO₂ emissions
A new industrial revolution enabling the production of a greener steel
Who we are
A team committed to tranforming the industry. From strategic development to industrial implementation, our teams embody GravitHy’s ambition, expertise and vision for the decarbonization of steel and the…
What we do
Low carbon iron for a greener steel. Our product is HBI, or Hot Briquetted Iron, a strategic material, produced from low-carbon hydrogen, designed to decarbonise the steel industry. Compatible with…
Careers
Your next professional challenge starts here: join GravitHy! Diversity, inclusion, impact, boldness… At GravitHy, we are building a cleaner industry. Located in Paris and Marseille, we offer a stimulating work…
Latest news
See all newsGravitHy and HES FOS sign strategic partnership to develop critical infrastructure in Fos-sur-Mer
We are pleased to announce the signing of a Memorandum of Understanding (MoU) with HES FOS, a subsidiary of HES International, to establish a long-term strategic partnership for the development …

Join us!
Do you want to move the industry? We are looking for bold, committed talents ready to make a real impact on climate and industry. Let’s build together an ambitious and low-carbon industrial sector.