Michael Vassiliadis

Industriegewerkschaft Bergbau Chemie Energie (doing business as IG Bergbau Chemie Energie) is a German private company located in Hannover that operates as a trade union.

STEAG GmbH engages in the planning, development, construction, and operation of power plants and storage facilities. Its services include conventional power generation, energy trading and optimization, district heating, as well as distributed generation. The company was founded in 1937 and is headquartered in Essen, Germany.

RAG-Stiftung operates as a private foundation. It provides financing services for the perpetual mine management as well as the educational, scientific, and cultural projects related to coal mining in the Ruhr and Saar regions. The company was founded on June 26, 2007 and is headquartered in Essen, Germany.

RAG AG, a subsidiary of RAG-Stiftung, is a German company located in Essen that specializes in coal mining. Peter Schrimpf is the current CEO of the firm. The company says this about itself: is one of the world's leading hard coal producers and Germany's number one coal producer. Based in Germany, the company consists of an international group of more than 450 companies active in mining, coal trading, engineering, power generation, and chemicals, and has over 220 subsidiaries around the world. RAG's domestic coal and coke mining activities are managed by Deutsche Steinkohle AG.

Part of RAG-Stiftung, Vivawest GmbH is a company headquartered in Gelsenkirchen, Germany, that provides residential real estate services. The firm was founded in 2006. Claudia Goldenbeld and Haluk Serhat are the current co-CEOs of the company. RAG AG acquired Vivawest GmbH on June 30, 2015.