Rio Tinto Says New Mongolia Output to Supply Into Copper Deficit

  • Oyu Tolgoi underground expansion to begin production in 2020
  • Copper market to return to deficit from 2017, Freeport says

Rio Tinto Group’s $5.3 billion underground expansion of Oyu Tolgoi mine in Mongolia will increase its output in about four years time when the copper market is in deficit, according to the company’s deputy chief executive officer.

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