ArcelorMittal

 production, steelworks

British blacksmith John Cockerill founded an iron foundry here in 1817. Since then the works has grown many times over, and ownership has also changed numerous times.

In 1955 SA John Cockerill merged with SA Ougrée-Marihaye to form SA Cockerill-Ougrée. The company Cockerill-Ougrée underwent further merges as the Belgian steel industry was consolidated in the second half of the twentieth century, becoming Cockerill-Ougrée-Providence in 1966, Cockerill-Ougrée-Providence et Espérance Longdoz in 1970; shortened to Cockerill. In 1980 merger with Hainaut-Sambre produced Cockerill-Sambre, which through further mergers then became part of Usinor (1999) then Arcelor (2002), and in 2008 part of ArcelorMittal.

As of 2010 steel production in Liege continues as ArcelorMittal Liege, producing flat carbon steel, with process from coking and blast furnace production of steel, continuous casting and hot rolling, to coating of steel with zinc or plastic.