云南冶炼厂（云南铜业股份有限公司）是20世纪60年代初建成的铜精矿电炉熔炼企业。投产以来，存在着能源消耗大，SO₂利用率低，环境污染较严重，生产成本高等问题；近20年来，通过持续不断地技术改造和技术创新，特别是采用先进的富氧顶吹熔池熔炼技术取代电炉熔炼工艺，将使传统的炼铜产业获得迅速的提升。预计到2002年，不但在生产规模上成为全国三大铜生产企业之一，而且三废排放将完全达标，实现清洁生产，粗铜电耗可望由2 314 kW·h/t降至1 542 kW·h/t，生产成本会有明显下降，总体实力可进入世界铜工业20强之列。

Yunnan Smelter (Yunnan copper Co., Ltd.), built in early 1960s, is mainly engaged in smelting of copper concentrate with electric furnace. There had been problems since putting into operation, such as high energy consumption, poor utilization of SO₂, serious environmental pollution and high operating cost. By persistent technical upgrading and innovation in the past two decades, especially the introduction of the advanced oxygen-enriched top-blown bath smelting to replace the electric furnace smelting, the enterprise has been enhanced rapidly. It is expected that by 2002 the smelter will become one of China´s three major copper enterprises, and may rank among the top twenty copper producers in the world. By that time the “three waste” disposal will meet the environment requirements, hence clean production will be realized in the plant, and electric power consumption for blister copper will drop from 2314 kWh/t to 1542 kWh/t and, accordingly, the operating cost will be lowered greatly.