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Fos-sur-Mer Fire Disrupts European Steel Supply; Plant Activity Mixed Amidst Uncertainty

In Europe, the steel market faces increasing downward pressure due to recent disruptions. The news articles “ArcelorMittal Fos-sur-Mer shut down blast furnace No. 2 due to a fire,” “ArcelorMittal Shuts Down Fos-sur-Mer Blast Furnace After Major Fire,” and “ArcelorMittal shuts down Fos-sur-Mer blast furnace after major fire incident” detail the immediate shutdown of blast furnace No. 2 at ArcelorMittal’s Fos-sur-Mer plant. This shutdown is directly linked to a potential disruption in the supply chain within the region. While satellite data doesn’t directly reflect this specific incident’s immediate impact, the overall plant activity trends indicate a complex market.

Bar chart and satellite map of steel production activity in Europe

Aggregated activity across all observed plants in Europe shows fluctuating activity. The mean activity level peaked in May and August, but dipped significantly in September before recovering somewhat in October. It is important to note that the OMK Ecolant plant shows consistently elevated activity readings. However, those might be caused by data issues, so any analysis must factor in this caveat.

The Benteler Steel Tube Lingen plant in Germany, a producer of semi-finished and finished rolled products including tubes, billets and slabs primarily for the automotive and building & infrastructure sectors, has shown relatively stable activity. Starting at 70% in April 2025, it slightly increased to 74% by June, decreased to 70% in August, and returned to a value of 77% in October. No direct connection to the ArcelorMittal fire news could be established.

The Makstil Skopje Steel plant in North Macedonia, primarily producing slabs via EAF for an unknown end-user sector, showed activity fluctuating between 45% and 48% from April to September. The most recent data for October is missing. No direct connection to the ArcelorMittal fire news could be established.

The OMK Ecolant steel plant in the Russian Federation, an integrated DRI-EAF plant producing slabs and round billets for building & infrastructure, energy and transport sectors, shows a persistently high activity level. However, the actual numbers may be affected by data issues, so this cannot be relied upon. No direct connection to the ArcelorMittal fire news could be established.

The fire at ArcelorMittal’s Fos-sur-Mer plant, a major integrated steel facility in France, will likely cause a temporary reduction in slab supply. Given that the steelmaking shop is central to the plant’s operations, the disruption has the potential to affect downstream processes. According to “ArcelorMittal shuts down Fos-sur-Mer blast furnace after major fire incident“, the plant is using existing slab reserves, which are expected to deplete rapidly if repairs are prolonged, disrupting the entire production flow. This presents an immediate concern for European steel buyers relying on slabs from this facility.

Recommended Procurement Actions: Steel buyers should immediately assess their reliance on ArcelorMittal Fos-sur-Mer for slab supply. Given the potential for prolonged disruption as indicated in “ArcelorMittal Fos-sur-Mer shut down blast furnace No. 2 due to a fire“, buyers should contact ArcelorMittal for updated timelines on the repair and restart of blast furnace No. 2. Concurrently, explore alternative slab supply options within Europe or from trusted international sources. Monitor spot market prices for slabs, as they are likely to increase in the short term due to this supply constraint. Steel market analysts should closely track the repair progress at Fos-sur-Mer and factor potential output losses into their supply and demand models. Furthermore, analysts should also analyze the data reliability of the OMK Ecolant steel plant in the Russian Federation for future reports.