Zhongjin Lingnan Nonfemet Company Limited is a Chinese mining and metallurgy group headquartered in Shenzhen, Guangdong. It carries out integrated mining, beneficiation, smelting and trading of non-ferrous metals—chiefly zinc and lead—with by-products such as copper, silver, indium and sulfuric acid. Its A-shares have traded on the Shenzhen Stock Exchange since 23 January 1997 under ticker SZSE: 000060. Wikipedia