Arcelor S.A. was the world's largest steel producer in terms of turnover and the second largest in terms of steel output, with a turnover of €30.2 billion and shipments of 45 million metric tons of steel in 2004. The company was created in 2002 by a merger of the former companies Aceralia (Spain), Usinor (France) and Arbed (Luxembourg).
Lakshmi Niwas Mittal is an Indian steel magnate, based in the United Kingdom. He is the executive chairman of ArcelorMittal, the world's second largest steelmaking company, as well as chairman of stainless steel manufacturer Aperam. Mittal owns 38% of ArcelorMittal and holds a 3% stake in EFL Championship side Queens Park Rangers.
Cockerill-Sambre was a group of Belgian steel manufacturers headquartered in Seraing, on the river Meuse, and in Charleroi, on the river Sambre. The Cockerill-Sambre group was formed in 1981 by the merger of two Belgian steel groups – SA Cockerill-Ougrée based at Seraing in the province of Liège, and Hainaut-Sambre based at Charleroi in the province of Hainaut – both being the result of post-World War II consolidations of the Belgian steel industry.
ArcelorMittal Kryvyi Rih is Ukraine's largest integrated steel company, founded in 1934 and located in Kryvyi Rih, in central Ukraine.
Usinor was a French steel making group formed in 1948. The group was merged with Sacilor in 1986, becoming Usinor-Sacilor and was privatised in 1995, and renamed Usinor in 1997.
The Aciéries Réunies de Burbach-Eich-Dudelange, better known by its acronym ARBED, was a major Luxembourg-based steel- and iron-producing company. Created in 1911 after the merger of three steel-producing companies, ARBED had a significant role in the economy of the Grand Duchy until it merged in 2002 with two other European steel companies to create Arcelor.
Altos Hornos de Vizcaya, S.A. was a Spanish metallurgy manufacturing company. It was the largest company in Spain for much of the 20th century, employing 40,000 workers at its height. The business began in 1902 in Bilbao with the merger of three iron and steel businesses: Altos Hornos de Bilbao, La Vizcaya, and La Iberia. In the 1990s, following a series of mergers, it joined with Arcelor.
ArcelorMittal S.A. is a Luxembourg-based multinational steel manufacturing corporation headquartered in Luxembourg City. It was formed in 2006 from the takeover and merger of Arcelor by Indian-owned Mittal Steel. ArcelorMittal is the second largest steel producer in the world, with an annual crude steel production of 88 million metric tonnes as of 2022. It is ranked 197th in the 2022 Fortune Global 500 ranking of the world's largest corporations. It directly and indirectly employs around 200,000 people and its market capital is $25 billion. The total value of company assets is estimated to be around $100 billion.
The Minière et Métallurgique de Rodange (MMR) was a Luxembourgian blast furnace steel producer and mining company originally established in 1872 as the Hauts-Fourneaux de Rodange. From 1905 to 1935 the company was a division of the Ougrée-Marihaye company.
Guillermo Ulacia Arnaiz serves as Vice President of Aceralia Corporation Siderurgica SA.
Aperam S.A. is a Belgian-French company, listed on the Amsterdam, Brussels, Paris, Madrid and Luxembourg stock exchanges and with facilities in Brazil, Belgium and France, which concentrates on the production of stainless steel and speciality steel. It was spun out of ArcelorMittal at the start of 2011; the facilities that became Aperam had about 27% by turnover of the stainless-steel market as of 2009.
The ARBED building is the generally used name for the headquarters of ArcelorMittal and one of its predecessors, the ARBED steel manufacturing company, which was completed in 1922 on the Avenue de la Liberté, opposite the Rose Garden in Luxembourg City. The architect was the Frenchman René Théry, and construction was overseen by Sosthène Weis.
In the industrial sector, the Luxembourg steel industry continues to occupy the first place in the country, even after the industrial reforms which have taken place since the 1960s.
Ilva S.p.A. is an Italian steel company in Taranto that for much of the 20th century was Italy's largest steel producer and one of the largest in Europe. In June 2017, Arcelor Mittal became the chief shareholder. In 2020 the company returned to commissioners' management and ownership of the Italian state. On 23 April 2021, capital was infused by the government of Mario Draghi, which took a 38% share and 50% of the voting rights.
Sollac was a French steel company formed in December 1948 as a cooperative to produce steel rolls in Lorraine from steel provided by several other companies. There were various changes of ownership during the years that followed. In 1970 the company, under pressure from the French government, began to develop a large new continuous strip mill in the south of France. The French steel industry soon went into crisis, with excess capacity and declining demands from automobile manufacturers and the construction industry. Sollac became a subsidiary of Usinor in 1987, responsible for all flat products. In 2002 Usinor became part of Arcelor, which in turn was merged into ArcelorMittal in 2006.
Altos Hornos del Mediterráneo S.A. (AHM) was a Spanish ferrous metallurgy company incorporated in 1971 to operate the integral ferrous metallurgy in Sagunto, known as the 4th Integral Ferrous Metallurgy Plant of Spain. At the time of its creation, it inherited the historical facilities that Altos Hornos de Vizcaya had owned in Sagunto since the beginning of the 20th century. However, the company's activity was strongly affected by the industrial crisis that the country experienced in the 70's and 80's, so that in 1984 the public administration agreed to cease its operations.
269.546 billion ₧ (1997) [1] 
