云南锡业公司(以下简称云锡)是国家500家最大工业企业、国家512户重点骨干企业和云南省42户重点改革试点单位之一。产品以精锡、铸造锡铅焊料及锡的深加工为主,同时还生产铜、铅、锌、砷、铋等有色金属及锡化工共20个系列300多个品种的产品。锡产量分别占全国和世界的36％、12％,是我国最大的锡品生产和出口基地,有41种产 Yunnan Tin Industry Co., Ltd. (hereinafter referred to as Yun Tin) is one of the 500 largest industrial enterprises in the country, a key national key enterprise of 512 and 42 key reform pilot units in Yunnan Province. Products to fine tin, tin-lead castings and tin-based processing, while also producing copper, lead, zinc, arsenic, bismuth and other non-ferrous metals and tin chemical industry a total of 20 series more than 300 varieties of products. Tin production accounts for 36% and 12% of the national total and the world respectively. It is the largest base for production and export of tin products in China, with 41 kinds of products