https://wheninvest.blogspot.com/towards-switching-to-green-steel

Towards switching to green steel, Assellor Mittal as a model
"The idea is to build a hydrogen DRI unit (that is to say direct reduction of iron ore), as well as an electric furnace", in charge of decarbonisation projects for ArcelorMittal in Dunkirk. “In March 2021, we signed an agreement with Air Liquide, which is to supply us with the necessary low-carbon hydrogen.