ThyssenKrupp AG () is a very large German industrial conglomerate, with about 192,000 employees. The corporation consists of 670 single companies worldwide. ThyssenKrupp is one of the world's largest steel producers. It operates worldwide in three business areas: steel, capital goods, and services. The steel unit concentrates on carbon steel and stainless steel, while the capital goods unit consists of three segments: elevators, automotive (parts, sub-assemblies, and modules), and technologies (machine tools, large-diameter bearings, and industrial doors). The services sector provides tailor-made materials, environmental services, mechanical engineering, and scaffolding services. The company is the result of the 1999 merger of Thyssen and Krupp. It is registered in Essen and Duisburg (both