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Oyu Tolgoi Underground

Oyu Tolgoi underground

Our world-class open pit mine and underground project using block-caving mining techniques to extract the ore and transport it to the surface.
Yellow underground mining vehicle with a large drill attachment parked in a dimly lit rock tunnel, with two workers in high-visibility clothing beside it and water reflecting the equipment below.

What is block caving?

Block caving is an innovative underground mining method that uses gravity to help extract ore from deep copper and gold deposits.