Gerd Hähne

Part of GESCO SE, Dörrenberg Edelstahl GmbH is a steel company based in Engelskirchen-Ründeroth, Germany. Dörrenberg Edelstahl GmbH specializes in producing special steels, steel foundry casting products, coating, and hardening. The German company also offers supply chain management, engineering and procurement, heat treatment, hard material coating, plasma nitriding, surface layer hardening, and other additional services. Dörrenberg Edelstahl GmbH has subsidiaries, franchisees, and partners in 15 countries and represents over 210 million € turnover (2018) with more than 500 employees. The company has implemented quality management, environmental management, and energy management systems to offer perfect products and services while conserving resources and protecting the environment. The CEO of the company is Marc Breidenbach.

Part of ArcelorMittal SA, EKO Schrottrecycling GmbH is a German company that trades and recycles scrap materials. The company is based in Eisenhüttenstadt, Germany. The CEO of the company is Marc Breidenbach.

Scholz Management Service GmbH engages in the recycling of steel scrap and non-ferrous metal scrap. The company is headquartered in Esslingen, Germany.

Part of Usum Investment Group Co., Ltd., Scholz Industrieservice GmbH is a German company that manufactures metal products. The company is based in Esslingen, Germany. The CEOs are Holger Hänisch, Marc Breidenbach, Siegfried Wick. The company was founded in 2004.

Schrott-und Metallhandel M. Kaatsch GmbH is a family-run company based in Plochingen, Germany that specializes in recycling and disposal services for steel scrap, non-ferrous metals, waste wood, and other recyclable materials. The German company offers comprehensive services for private individuals, families, craftsmen, construction, small businesses, associations, production, medium-sized companies, and large customers. The company's mission is to provide intelligent disposal concepts, perfectly coordinated processes, and state-of-the-art industrial facilities to deal responsibly and efficiently with resources. The CEOs of the company are Ralph Wager, Daniela Wager-Zanker, Marc Breidenbach.