Hans-Dieter Harig

Part of Lhoist SA, Rheinkalk GmbH is a German company that manufactures lime and dolomite stone products. The company is based in Wülfrath, Germany. The CEOs of the private company are Michael Liell, Paul Alexander Schipper, Philipp Niemann.

VNG AG wholesales and distributes natural gas. It focuses on the four key business areas of exploration and production, trading and services, transport, and storage. The firm offers gas related, energy industry services, training and advice and marketing services. The company was founded on June 29, 1990 and is headquartered in Leipzig, Germany.

EWE AG provides utility services such as distribution of electricity and gas. The firm supplies electricity and natural gas, water management, communication infrastructure, Internet connections, billing systems in network control, energy trading, and energy management. The company was founded in 1943 and is headquartered in Oldenburg, Germany.

Bilfinger Engineering & Technologies GmbH provides power generation and environmental protection technologies. It offers optimization concepts for conventional and nuclear power stations. The company is headquartered in Oberhausen, Germany.