Yunnan Tin Co., Ltd. (hereinafter referred to as the Company) was restructured and established in 1998. Its predecessor can be traced back to the Gejiu Factory Management Bureau established in Qing Dynasty (1883) with official funds. It has a history over 140 years. In 2000, the company was listed on the Shenzhen Stock Exchange (Stock code: 000960). It is the only A-share listed company covering the entire tin industry chain.

The company has a full industrial chain and supply chain integration industry structure of tin, indium, zinc, copper and other non-ferrous metals from resources exploring, concentrating, smelting, deep processing to new material R&D, trading, etc. The Company holds the largest Tin and indium reserves in the world, with the largest tin production and processing base in China, and the world's longest and most complete tin industry chain, with a production capacity of 80,000 tons of smelted tin,43,000 tons of tin profiles, 27,000 tons of tin chemicals（tin profiles and tin chemicals are produced by non-controlling invested company Yunnan Xiye New Material Co., Ltd), 125,000 tons of cathode copper, 100,000 tons of zinc smelting, 50,000 tons of zinc die cast alloy,and 60 tons of indium smelting.

The Company has a strong market competitive adavantages worldwide. Itsleading tin ingots product with trademark of“YT”has been recognized as a Chinese famous brand and inspection-free product for export, and also benn registered in the London Metal Exchange, hence becoming a well-known brand worldwide. According to its own data of production and sales and the data provided by industry organizations, the company's tin production has near 48% domestic market share and the 25% global market share.