Hidili Industry International Development Ltd. operates as an investment holding company that engages in coal mining, production and sale of coke and clean coal, and the provision of transportation. The company operates through the following business segments: Coal Mining, Coking, and Others. The Coal Mining segment produces and sells clean coal and its by-products. The Coking segment manufactures and distributes coke and its by-products. The others segment manufactures and sells alloy pig iron and others. The company was founded by Yang Xian in May 2000 and is headquartered in Hong Kong.