Oyu Tolgoi Copper-Gold Mine in Omnogovi, was the largest mine in Mongolia, producing approximately 43.11 million metric tons per annum (mmtpa) of Run-of-Mine (ROM) and primarily produced copper (163 thousand tonnes) in 2021. The Oyu Tolgoi Copper-Gold Mine is owned by Rio Tinto;Government of Mongolia, and is due to operate until 2052. …