The 2024 annual report of Yunnan Tin Co., Ltd. shows that the company's main business is the exploration, mining, beneficiation, and smelting of metal ores such as tin, zinc, copper, and indium.
On March 27, the Yunnan Provincial Grain and Material Reserve Bureau and Yunnan Tin Holding Company held a signing ceremony for the Yunnan Province Nonferrous Metals (Tin, Indium) Reserve Agreement in ...