Cheng Yi Liu

Part of thyssenkrupp AG, thyssenkrupp Federn GmbH is a German company that manufactures wire products, chains and springs. The company is based in Hagen, Germany. The CEOs are Andreas Ruks, Mario Gropp. The company was founded in 2003.

ThyssenKrupp Presta Ilsenburg GmbH engages in the production and distribution of automotive components and systems. Its product portfolio includes assembled camshafts, camshaft modules, variable valve trains, rotor shafts and rotors, as well as oil separation systems. The company was founded on July 27, 2006 and is headquartered in Ilsenburg, Germany.

Part of thyssenkrupp AG, thyssenkrupp Federn und Stabilisatoren GmbH is a German company that manufactures and supplies steel springs, tabular stabilizers and parts. The company is based in Hagen, Germany. The CEOs are Tim Ellringmann, Martin Schmidt, Mario Gropp. The company was founded in 2011.

TK Elevator GmbH engages in the manufacture, sale, and distribution of passenger transportation systems. Its products include passenger and freight elevators, escalators, moving walks, passenger boarding bridges, as well as stair and platform lifts. It also provides maintenance, real-time troubleshooting, and remote monitoring services. The company was founded in 1865 and is headquartered in Essen, Germany.

Part of thyssenkrupp AG, thyssenKrupp Management Consulting GmbH is a German company that provides management consulting services. The company is based in Essen, Germany. The company was founded in 2009 by Patrick Buchman, Andreas Ruks, Stefan Schmitt. Stefan Schmitt has been the CEO since 2009.