ArcelorMittal Advances Major Steel Decarbonization Projects

The steelmaker is expanding facilities in France to supply materials for the growing electric vehicle market.

Updated on Oct. 28, 2026 in Electric Vehicles

Bold flat-color editorial illustration of a heavy industrial ladle, symbolizing large-scale steel manufacturing decarbonization efforts.
ArcelorMittal is progressing with major electric-arc furnace and rolling mill projects in France to increase production of low-carbon steel for EVs. AI Illustration. Upload story photo >

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ArcelorMittal is progressing with a massive electric-arc furnace project in Dunkirk while expanding electrical steel production in Mardyck. These initiatives aim to lower carbon intensity while boosting supply for the electric vehicle industry.

Why it matters

The company is transitioning toward low-carbon steel production and increasing specialized materials to meet the rising demand for electric motor components. These efforts represent a significant shift in steel manufacturing methods to support the global green energy transition.

The Dunkirk project features an estimated carbon footprint of 0.6 tonnes of CO2 per tonne of steel produced. Additionally, ArcelorMittal has invested €500 million into the Mardyck expansion, where three production lines currently operate.

The players

ArcelorMittal

This multinational steel manufacturing corporation is headquartered in Luxembourg and serves as a major global supplier for the automotive, construction, and appliance industries.

The details

The Dunkirk facility, supported by 50% funding from France's Energy Saving Certificates, will utilize a ladle metallurgy furnace. Construction at Mardyck continues on an annealing and pickling line alongside a reversible rolling mill to facilitate high-end steel production.

Timeline

  1. Three production lines at Mardyck began operating in March 2026.

  2. Temporary production adjustments occurred at the Gijón site starting September 28, 2026.

  3. A consultation process for broader organizational changes is scheduled for October 15, 2026.

  4. Initial testing for the second phase at the Mardyck site is expected by spring 2027.

  5. Primary steelmaking is set to cease at the Duisburg site by the end of 2027.

Roadmap

ArcelorMittal is pivoting away from traditional coal-based blast furnaces toward electric-arc technology to align with global automotive electrification trends. This transition secures a competitive advantage by aligning European production capacity with the surging requirement for specialized electrical steels.

Automakers and component suppliers can expect increased availability of high-performance electrical steels for motors as the Mardyck facility expands production. Long-term, these investments help stabilize the supply chain for electric vehicle manufacturers as the industry shifts to lower-carbon materials.

The takeaway

The move reflects a broader industrial commitment to sustainable manufacturing as the automotive sector prioritizes carbon-neutral materials. Manufacturers should monitor these large-scale production shifts to understand future availability and quality standards for electrical steel components.

Further reading

Explore more about how automotive supply chains are shifting at Electric Vehicles.

Source note: This article includes information reported by Fastmarkets.

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Should major manufacturers prioritize large-scale green energy investments despite current high costs and weak market demand?