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Title
Underground production commences at Oyu Tolgoi; Rio Tinto mine will be fourth-largest copper mine in the world.
Abstract
The article reports on Rio Tinto's celebration of the start of underground production at its Oyu Tolgoi Mine in Mongolia, which is expected to become one of the world's leading copper suppliers by 2030. It mentions that the partnership between Rio Tinto and Mongolia has invested billions of dollars to develop the underground mine, which is projected to produce an average of 500 kt/a from 2028 to 2036.