Dalian Tianman Yin Trading Co., Ltd. is a comprehensive trading company, with its main business being the trade of metal raw materials, mainly including non-ferrous metal products such as zinc, nickel, copper, lead, and aluminum, as well as the import and export business of iron ore and copper ore. In addition, the products also include plastics (polyethylene), petrochemicals (diethylene glycol, ethylene glycol, styrene, phthalic anhydride), and wood pulp.