Hüttenwerke Krupp Mannesmann GmbH

MiningNorth Rhine-westphalia, Germany201-500 Employees

Hüttenwerke Krupp Mannesmann GmbH is a steel producer based in Duisburg, North Rhine-Westphalia. The company specializes in producing steel and semi-finished products for the processing industry, with core outputs including billets and round steel that are processed into large-diameter pipes, vehicle components, forging stock, and seamless tubes. It operates as a subsidiary of Thyssenkrupp Steel Europe AG, Salzgitter Mannesmann GmbH, and Vallourec Tubes S.A.S, and is one of Germany's largest integrated steelworks, as well as the leading employer in southern Duisburg.

HKM's customer base comprises users in the processing sector who rely on primary steel and semi-finished materials for fabrication and forming applications. Recent developments include regulatory approval in 2026 of Salzgitter Mannesmann GmbH's acquisition of HKM, reflecting ongoing consolidation in the European steel industry.

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