China Coal Technology & Engineering Group Taiyuan Research Institute Co., Ltd (Shanxi Tiandi Coal Mining Machinery Co., Ltd.) was established in 1964, a coal machinery equipment R & D and manufacturing enterprises with the most complete professional configuration, mainly engaged in research and development of coal mining, excavation, transportation, support technology and equipment. The company’s products have served Canada, Russia, India, Zimbabwe and other countries, carrying out multi-level international cooperation.