SMT Scharf AG develops, manufactures, and services transportation equipment and logistics systems for underground mining and tunnel construction. It operates through four segments: Coal Mining, Mineral Mining, Tunnel Logistics, and Other Industries. Its products include monorail and duorail systems, chairlift systems, segment cranes, lifting devices, drilling and splitting tools, battery and diesel locomotives, and climbing locomotives, among others, and are used primarily in hard coal, gold, platinum, copper, nickel, and salt mining. Founded in 1941 and headquartered in Hamm, Germany, the company operates in Germany, Russia and the rest of the CIS states, Poland, China, Africa, the United States, and internationally, and is a subsidiary of Yankuang Energy Group Company Limited.