Marcegaglia is increasing its investment in the project in Fos-sur-Mer

The Italian group Marcegaglia is investing an additional €600 million in the Mistral project in Fos-sur-Mer (France). The announcement was made at the Choose France summit, according to Maritima.

This will increase the group’s total investment in the facility—the first large electric arc furnace plant in France in 50 years and the first large rolling mill during this period — to approximately €1.2 billion. The project aims to increase steel production from 100,000–150,000 tons to approximately 2.1 million tons by mid-2028.

The Mistral project involves the integration of artificial intelligence and the provision of 100% carbon-free energy through a major agreement with the electricity company EDF.

In 2024, the Italian group acquired the former Ascometal steel plant in Foix-sur-Mer, and in 2025, it signed a long-term agreement with EDF to supply electricity generated by nuclear power plants at competitive prices.

In April of this year, a €450 million contract was signed with Danieli for the supply of equipment.

As a reminder, once commissioned, the industrial complex will produce over 2 million tons of steel annually using an EAF and up to 3 million tons of hot-rolled coils of stainless and carbon steel. The plant is expected to meet about 35% of the group’s needs for coils and slabs, which will mainly be supplied to its plants in Italy.

As reported by GMK Center, Marcegaglia previously announced a €364 million investment in its production facilities in Italy. The largest portion of the funds—€278 million—will be allocated to the modernization of the plant in Ravenna.