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弗里波特印尼公司格拉期伯格铜金矿于1989年投产,第一期扩建工程于1993年3月完成,选矿厂日处理矿石6.6万t。目前正在进行的二期扩建工程将于1996年初竣工,选矿厂日处理量计划增至9万t。到本世纪末,弗里波特印尼公司可年产铜近45万t,金37.3～46.6t,将成为世界产量最大和成本最低的铜与金生产厂家之一。露天矿使用大型电铲和218t自卸汽车作业,矿岩总产量30万t/d,今后将增至46万t/d。精矿用两条内径127mm,长119km的管道运往海港。
The Freeport Indonesia-based company, the Graz Berger copper-gold mine, was put into operation in 1989. The first phase of the expansion project was completed in March 1993 and the concentrator processes 66,000 t of ore per day. The second phase of the ongoing expansion project will be completed in early 1996, concentrator daily throughput plans to 90,000 t. By the end of this century, Freeport Indonesia will produce 450,000 tons of copper a year and 37.3 to 46.6 tons of gold, making it one of the world’s largest and lowest cost producers of copper and gold. Open-pit mines use large power shovels and 218t dump trucks for operations, with a total output of 300,000 t / d of ore rock and an increase of 460,000 t / d in the future. The concentrate is transported to the harbor by two pipes of 127 mm ID and 119 km length.