As far back as the bronze age, there is evidence that copper was smelted at Oyu Tolgoi. While the mine has only been operational since 2013, the history of the discovery of the deposit is far older.
History intro EN
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As far back as the bronze age, there is evidence that copper was smelted at Oyu Tolgoi. While the mine has only been operational since 2013, the history of the discovery of the deposit is far older.