GuoCheng Mining CO., Ltd. engages in the mining of nonferrous metals. Its metals include lead and zinc mines, as well as associated gold, silver, and copper. The company also engages in the trading of mineral and non-ferrous metal products; and precious and rare metals, as well as in the development of non-ferrous metals and ferrous metals. In addition, it produces and sells sulfuric acid. The company was formerly known as Jianxin Mining Co., Ltd. and changed its name to Guocheng Mining Co., Ltd. in August 2018. The company is based in Chengdu, China.