ArcelorMittal has restarted steel production at its Fos-sur-Mer site in southern France following a fire that disrupted operations in early October.
The site produced its first slab in mid-December after the restart of blast furnace No. 2, marking the resumption of steelmaking activities. The initial slab, produced for a Greek customer, measured 6 meters in length, 1,620 mm in width, and 229 mm in thickness. The meltshop has since resumed slab production, while the hot rolling mill has also been brought back online to roll slabs into coils, with thicknesses ranging from 1.5 mm to 25 mm, depending on the product.
A major fire broke out at the Fos-sur-Mer plant on October 8, 2025, affecting two conveyor lines supplying raw materials to the meltshop. The incident spread to nearby load-bearing structures and an electrical substation, causing extensive mechanical and electrical damage and leading to an almost complete production shutdown, apart from the coking plant.
ArcelorMittal’s Fos-sur-Mer is a key flat steel production site supplying the automotive and industrial sectors, delivering more than 150 steel grades to customers across Mediterranean markets. The plant has a nominal annual crude steel capacity of around 4 mln tons.
