Yunnan Tin Group (Holding) Company Limited (YTC) is the largest tin producer and exporter in China and the world. It is headquartered in Kunming, Yunnan. It involves in the production, processing and export of tin metal, and also for the production of tin-based and arsenic-based chemicals.

It was established in 1883 by the Government of Qing Dynasty as the Gejiu Manufacture & Commercial Bureau (China Merchants).

The capability of YTC’s main producing system now is more than 40,000 tons organic tin, 40,000 tons tin profiles and tin chemicals, and 2,000 tons arsenic chemicals. Its products cover mainly the refined tin, tin-lead solder, tin profiles and tin chemicals. 

The company also produces other 600 categories in 20 series, including high purity precious metals material, platinum metals catalyst and metal products.

It is also the biggest precious metals research and development center in China. With its leading role in Chinese tin industry and adequate international competitiveness, YTC is listed as one of the top 520 largest Chinese industrial enterprises sponsored by the Chinese government and one of the top Ten Group Enterprises prioritized by Yunnan Provincial Government.

According to