At Escondida, the world’s largest copper mine, BHP has some problems: ore grades are declining, the rock is getting harder and a $5bn concentrator needs to be replaced. The company will also have to spend as much as $10bn to upgrade the facilities over the next seven years.
在世界最大銅礦埃斯康迪達，必和必拓面臨一些問題：礦石品位下降，巖石變得更堅硬，以及一個價值50億美元的選礦廠需要更換。公司還需要在未來七年內投入多達100億美元來升級設施。
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