ArcelorMittal

ArcelorMittal is a Luxembourg-headquartered multinational steel and mining group created through Mittal Steel's acquisition of Arcelor. The transaction was agreed in 2006 and completed in 2007, combining Lakshmi Mittal's rapidly internationalizing steel business with Arcelor, the European producer formed through the 2001 combination of Aceralia, Usinor and ARBED. The resulting company was, at the time, the world's largest steelmaker and became one of the most geographically diversified businesses in the sector. The group makes flat and long steel products, semi-finished slabs and billets, wire products, tubes and specialized grades for automotive, construction, engineering, energy, appliances, packaging and general industry customers. Its business is vertically integrated: mining operations supply iron ore, while coke production, direct reduced iron, scrap processing and steelmaking support the group's raw-material requirements. Mining assets and interests have included operations or projects in Brazil, Canada, Liberia, Mexico, Ukraine and South Africa, together with joint ventures and associates in other jurisdictions. Steel production has historically been concentrated in Europe and the Americas, with additional operations in Africa and Ukraine. ArcelorMittal expanded significantly after its formation through acquisitions and joint ventures. Early transactions included Sicartsa in Mexico, a controlling interest in China Oriental Group and the acquisition of Essar Steel in India with Nippon Steel. It also bought or inherited major North American assets associated with Bethlehem Steel, Inland Steel and International Steel Group. Some businesses were subsequently divested as the group adjusted its portfolio, including ArcelorMittal USA, sold to Cleveland-Cliffs in 2020, and several European operations sold to Liberty House. The company has also developed a substantial recycling business, particularly through acquisitions in the United Kingdom and Germany. The group has faced the structural pressures common to heavy industry: cyclical demand, global overcapacity, volatile energy and raw-material costs, trade restrictions, environmental regulation and the capital intensity of decarbonization. These pressures have led to temporary idling, permanent closures, plant sales and restructuring in several countries. The company has invested in higher-strength automotive steels, coated products, low-carbon production technologies, direct reduced iron and hydrogen-related projects. Its automotive business is a particularly important specialized market, while construction steel, infrastructure products and mining remain central to the wider portfolio. ArcelorMittal is controlled by the Mittal family but listed internationally, including on Euronext Amsterdam, Euronext Paris, the Luxembourg Stock Exchange and the Spanish stock exchanges. Lakshmi Mittal has served as executive chairman and Aditya Mittal as chief executive officer. The company continues to operate as an integrated steel-and-mining group, balancing global scale with regional production networks and a long-term transition toward lower-emissions steel.

ArcelorMittal's history combines the consolidation of European steelmaking with the international expansion of the Mittal group. Arcelor was established in 2001 through the merger of Aceralia of Spain, Usinor of France and ARBED of Luxembourg. Mittal Steel, descended from the Ispat group, had meanwhile assembled steel assets across North America, Europe, Africa and Asia through an acquisition-led strategy. Mittal Steel's purchase of Arcelor was agreed in 2006 and completed in 2007 after a contested bidding process. The transaction produced a company that represented roughly a tenth of world steel output and was then the largest steel producer globally. The new group continued to expand selectively. It acquired Sicartsa in Mexico, increased its holding in China Oriental Group and expanded its mining base. It also inherited or controlled important North American assets linked to Bethlehem Steel, Inland Steel and International Steel Group. Some merger-related divestments were required for regulatory approval, including the sale of the Lackawanna and Sparrows Point facilities. During the global financial crisis, the company reduced production and closed or idled capacity as demand fell. In the early 2010s, ArcelorMittal pursued portfolio reshaping as European overcapacity became a persistent issue. Its stainless-steel division was spun off as Aperam in 2011. The company sold businesses including Skyline Steel and Astralloy, while attempting to preserve strategic automotive, mining and high-value flat-steel assets. Its dispute with the French government over Florange illustrated the political sensitivity of steel closures and employment. The company later made investments in advanced automotive grades, including the Usibor 2000 product launched in 2016. The group also encountered regulatory and legal problems. It was fined in the European Commission's prestressed-steel cartel case and was found by South African competition authorities to have engaged in historical price fixing. In Senegal, an arbitration tribunal allowed the government to cancel a delayed iron-ore and railway project and awarded compensation. Environmental and safety concerns have repeatedly accompanied operations, including complaints around Kazakhstan and regulatory findings at the Indiana Harbor mill. From 2017 onward, acquisitions and divestments again altered the geographic footprint. ArcelorMittal combined Brazilian long-steel activities with Votorantim, proposed projects in India and Karnataka, acquired the Calvert, Alabama facility with Nippon Steel, and led the acquisition of Ilva in Italy. In 2019 it and Nippon Steel acquired Essar Steel through India's insolvency process. The company subsequently sold a group of European assets to Liberty House and divested ArcelorMittal USA to Cleveland-Cliffs in 2020. The 2020s brought greater emphasis on recycling, direct reduced iron and decarbonization alongside continued restructuring. ArcelorMittal acquired recycling businesses in Scotland, Germany and the Netherlands, bought an 80% interest in a Texas hot-briquetted-iron plant, and acquired Companhia Siderúrgica do Pecém in Brazil. It exited its Kazakhstan assets after the Kostenko mine disaster and reduced or closed selected operations in Germany, South Africa, Canada and Romania as energy costs and weak orders affected competitiveness. The company also increased its interest in Vallourec in 2024. Its present identity is therefore that of a globally listed, family-influenced steel and mining group whose strategy combines integrated raw materials, specialized steel products, asset recycling and investment in lower-emissions production.

1. 2024Vallourec stake is acquired

   ArcelorMittal purchases a 27.5% interest in seamless-tube producer Vallourec from investment funds managed by Apollo.

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2. 2023Companhia Siderúrgica do Pecém is acquired

   ArcelorMittal acquires the Brazilian slab and blast-furnace producer, strengthening its South American platform.

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3. 2020ArcelorMittal USA is sold

   Cleveland-Cliffs acquires the United States business, subject to customary closing conditions.

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4. 2019Essar Steel acquisition

   ArcelorMittal and Nippon Steel acquire Essar Steel through India's corporate insolvency process.

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5. 2018Ilva acquisition is completed

   The company-led consortium takes over the Italian steel producer subject to investment and environmental conditions.

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6. 2014Calvert facility is acquired

   ArcelorMittal and Nippon Steel acquire the Alabama carbon-steel facility and operate it as a 50/50 partnership.

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7. 2011Aperam is spun off

   The stainless-steel business is separated into the independently listed Aperam group.

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8. 2007Merger is completed

   The combined company begins operating as ArcelorMittal and becomes the largest steelmaker in the world at that time.

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9. 2006Mittal Steel agrees to acquire Arcelor

   A contested acquisition agreement establishes the framework for the future global steel group.

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10. 2001Arcelor is created

    Aceralia, Usinor and ARBED combine to form Arcelor, which later becomes the European side of the ArcelorMittal merger.

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A globally integrated steel and mining leader positioned around scale, raw-material integration, technical steel grades, customer-specific solutions and the transition to lower-carbon steel production.

• Automotive steelAutomotive materials

  A broad portfolio of exposed, coated, press-hardened and advanced high-strength steels for vehicle bodies, chassis and safety structures. The products are designed to combine crash performance, formability, corrosion resistance and weight reduction, and are supplied to vehicle manufacturers and component producers.

• UsiborAdvanced high-strength steel

  Usibor is a press-hardening steel family used for automotive structural and safety components. Its high strength allows manufacturers to reduce material thickness while retaining structural performance. The Usibor 2000 grade was introduced as a higher-strength development in the company's automotive-steel portfolio.

• Construction and infrastructure steelConstruction steel

  Structural sections, bars, plates, wire rod and related products used in buildings, bridges, transport infrastructure, energy projects and industrial structures. The offering covers both standard construction materials and engineered grades intended for demanding load, durability and fabrication requirements.

• Flat and coated steelFlat carbon steel

  Hot-rolled, cold-rolled, galvanized and other coated flat products serving automotive, appliances, packaging, engineering and general manufacturing customers. Coatings and surface treatments provide corrosion protection and support downstream forming, painting and finishing processes.

• Iron ore and metallicsMining and raw materials

  Iron ore concentrates, pellets and other iron-bearing materials produced from or supported by the group's mining interests. ArcelorMittal also participates in coke, direct reduced iron and hot-briquetted-iron activities, helping integrate raw-material supply with steelmaking.

• Steel recyclingRecycling

  Collection, processing and preparation of ferrous scrap for use in electric-arc furnaces and other steelmaking routes. The recycling business supports raw-material security and the company's efforts to increase circularity and reduce the emissions intensity of suitable steel products.

• 2023Acquire Companhia Siderúrgica do PecémM&A

  The Brazilian slab producer offered additional steelmaking capacity and a strategic position in northeastern Brazil.

  What changed. ArcelorMittal acquired the company and its integrated slab-producing facility.

  Aftermath. The acquisition strengthened ArcelorMittal's Brazilian production and export platform.

  Reported acquisition value. $2.2 billion (2023)

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• 2020Sell ArcelorMittal USAM&A

  The company reassessed its North American portfolio during a period of market volatility and industry consolidation.

  What changed. ArcelorMittal agreed to sell its United States operations to Cleveland-Cliffs.

  Aftermath. The sale reduced the group's direct United States footprint while retaining other North American assets and partnerships.

  Transaction value. $1.4 billion approximately (2020 announcement)

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• 2019Acquire Essar Steel with Nippon SteelM&A

  Essar Steel entered India's insolvency process, creating an opportunity to acquire a large modern steelmaking platform.

  What changed. ArcelorMittal and Nippon Steel acquired Essar Steel and established a joint operating structure.

  Aftermath. The transaction created one of the group's principal Indian businesses, AM/NS India.

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• 2016Launch Usibor 2000Product launch

  Vehicle manufacturers were seeking stronger steels to reduce vehicle weight while maintaining crash protection.

  What changed. ArcelorMittal introduced Usibor 2000, a higher-strength press-hardening automotive steel.

  Aftermath. The launch reinforced the company's strategy of competing through advanced automotive grades rather than commodity volume alone.

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• 2012Idle and restructure European blast-furnace capacityStrategy

  European steel demand weakened while excess capacity and competitive pressure increased.

  What changed. The company idled several furnaces and announced the closure of two Florange furnaces before reaching a later investment agreement with the French government.

  Aftermath. The decision intensified debate about employment, industrial policy and the future of European primary steelmaking.

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• 2011Spin off the stainless-steel divisionStrategy

  The group separated its stainless-steel activities from the carbon-steel and mining businesses.

  What changed. Aperam was created as an independently listed company.

  Aftermath. ArcelorMittal became more focused on carbon steel, mining and related industrial materials.

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• 2025Fos-sur-Mer environmental proceedingsControversy

  The company faced judicial supervision in France after residents and environmental groups brought proceedings concerning pollutants allegedly discharged by its Fos-sur-Mer facility.

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• 2018Pollution complaints near TemirtauControversy

  Residents attributed black snow and air-quality concerns in Temirtau, Kazakhstan, to emissions from the local steel plant. The company disputed the explanation and pointed to stagnant weather.

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• 2016South African price-fixing findingControversy

  South African competition authorities found historical price-fixing conduct involving the company's operations and imposed a fine together with a capital-investment undertaking.

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• 2014Senegal iron-ore project arbitrationControversy

  An arbitration tribunal awarded Senegal compensation and permitted cancellation of a contract after the company failed to advance a planned iron-ore and railway project.

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• 2011European prestressed-steel cartel fineControversy

  The European Commission fined ArcelorMittal in a cartel case concerning prestressed-steel conduct spanning 1984 to 2002. The company received the largest individual fine in the decision.

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• 2023ArcelorMittal advances lower-carbon steelmaking projects

  The group continued developing projects involving direct-reduced iron, electric-arc furnaces, renewable power, and other technologies intended to reduce the carbon intensity of steel production.

  Product launch
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• 2021Aditya Mittal becomes chief executive officer

  Aditya Mittal succeeded Lakshmi Mittal as chief executive officer, while Lakshmi Mittal moved to the role of executive chairman.

  Leadership change
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• 2020ArcelorMittal sells its United States business to Cleveland-Cliffs

  The company agreed to divest ArcelorMittal USA in a transaction valued at approximately $1.4 billion, reshaping its North American portfolio.

  M&A
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• 2019ArcelorMittal and Nippon Steel acquire Essar Steel

  The partners acquired the Indian producer through insolvency proceedings, establishing a major joint venture subsequently known as AM/NS India.

  M&A
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• 2018ArcelorMittal acquires Ilva and its Taranto steelworks

  A consortium led by ArcelorMittal acquired Ilva, owner of one of Europe's largest steelworks, subject to investment and environmental commitments.

  M&A
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• 2014Senegal wins arbitration dispute over iron-ore project

  An International Chamber of Commerce arbitration award required ArcelorMittal to pay Senegal and allowed the government to rescind the stalled mining and railway-development contract.

  LawsuitOther
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• 2012ArcelorMittal idles European blast furnaces amid weak demand

  Overcapacity and declining European demand led the group to idle several blast furnaces and permanently close two furnaces at Florange before a later investment agreement.

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• 2007ArcelorMittal is formed through the combination of Mittal Steel and Arcelor

  The completed transaction created the world's largest steel producer at the time and combined major European, American and emerging-market steel operations.

  M&A
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• 2006Mittal Steel completes acquisition of Arcelor

  The completion of Mittal Steel's acquisition of Arcelor created ArcelorMittal and reshaped the global steel industry through one of its largest cross-border combinations.

  M&A
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1. ArcelorMittal
2. ArcelorMittal corporate website
3. ArcelorMittal leadership
4. European Commission cartel decision
5. ArcelorMittal and Nippon Steel complete Essar Steel acquisition
6. ArcelorMittal announces sale of ArcelorMittal USA
7. ArcelorMittal announces acquisition of Companhia Siderúrgica do Pecém
8. ArcelorMittal announces investment in Vallourec
9. ArcelorMittal advances lower-carbon steelmaking projects
10. Aditya Mittal becomes chief executive officer
11. Mittal Steel completes acquisition of Arcelor