In a statement, the company said it tested a biofuel called ecoke, a briquette made from secondary biomass, at its Aldwake Cast Products (ACP) facility. The briquettes were used in place of anthracite coal, which had been the main carbon charge into the furnace.

“The success of LIBERTY’s ecoke trials is a major step forward for our GREENSTEEL strategy. The major reductions in CO₂ emissions ecoke enables, without any downside to the production process, can help to further decarbonize our production and the wider steel industry,” said Scott Jackson, LIBERTY  Specialty Steel plant manager at ACP.