Yunnan Tin Company Limited is a limited company in China whose holding company is Yunnan Tin Company Group Limited. It is the largest tin producer and exporter in China. Its major products cover more than 300 varieties in over 20 categories including tin ingot, tin-lead alloy, lead ingot, solder shapes, tin shapes and tin chemicals. The annual capacity of each product is 35,000 tons of tin, 20,000 tons of lead and 14,500 tons of tin chemicals respectively. Its world-known tin ingot has won China National Golden Medals successively for three times and its trademark"YT"has been registered in LME. In recent years, its tin ingot and cast tin-lead alloy ranked among famous brands in Yunnan Province for twice, and its brand is named as a famous brand in Yunnan Province. Its brand and quality enjoy good reputation in the international market. The company is ISO9001 and ISO14001 certified.

Yunnan Tin Co., Ltd. is an integrate complex operating from mineral exploration, mining, processing, smelting & refining, tin chemical production, to down stream products producing from both tin metal and other non-ferrous metals. Yunnan Tin Co., Ltd. has focused greatly on the research and development of every varieties it involves for years. It is the first one among this trade to successfully introduce the world-advanced Ausmelt Smelting Technology. This process and its world-advanced tin refining process make its whole production line the most advanced one in tin smelting and refining . The capacity of tin chemicals and tin shapes which become the two new increasing areas of earning is in the top both in China and in the world. The market share of Yunnan Tin Co., Ltd. keeps increasing both in domestic and oversea market. Its competitive position becomes more and more stable thanks to its increasing market share and its increasing product varieties with added value.