Oyu Tolgoi Rio Tinto
Oyu Tolgoi is one of the largest known copper and gold deposits in the world It is also one of the most modern safe and sustainable operations in the world 2021 figures Oyu Tolgoi also produced 182K ounces of gold and 876K of ounces of silver Rio Tinto owns % of Turquoise Hill Resources which owns 66% of Oyu Tolgoi