Chao Yang

Yunnan Copper (Group) Co., Ltd. engages in exploration, mining, selection, smelting and addition of copper metal; development of zinc, titanium, molybdenum and phosphorus; and comprehensive recycling of gold, silver, platinum and palladium. It also provides geological exploration, engineering consulting, chemical production, futures brokerage, logistics & transportation, and international trade services. The company was founded on April 25, 1996 and is headquartered in Kunming, China.

Yunnan Tin Group (Holding) Co. Ltd. is a Chinese company that smelts, manufactures, and distributes tin, other non-ferrous metals, and minerals. The company is based in Gejiu, China and ultimately controlled by the Province of Yunnan. Wenxiang Gao has been the CEO of the company since 2008.

Aluminum Corporation of China engages in the development and trade of mineral resources; smelting and processing of nonferrous metals; and provision of engineering and technical services. It operates through the following business segments: Aluminum Plate, Copper Plate, Rare Earth Plate, Engineering Technology, Mineral Resources, Overseas Sector, Trade, Energy, and Financial. Its products include alumina, aluminum ingots, carbon products, fabricated aluminum products, fabricated copper, rare metals, and rare earth products. The company was founded on February 23, 2001 and is headquartered in Beijing, China.