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Oyu Tolgoi (Rio Tinto)

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Location South Gobi Desert, Mongolia
Year of realization 2018 – 2020
Project value USD 5.4 Billion

Oyu Tolgoi LLC is a Mongolian company, jointly owned by Erdenes Oyu Tolgoi LLC on behalf of the Government of Mongolia and Canadian-based Turquoise Hill Resources. Rio Tinto has an interest in Turquoise Hill and also manages Oyu Tolgoi on behalf of the partnership. Rio Tinto Group is one of the world’s largest metal and mining corporations and one of the world leaders in the production of many commodities including aluminum, iron ore, copper, uranium, coal and diamonds.

The Oyu Tolgoi Shaft 2 when ramped up to full production will have the capacity to produce 95,000 tpd containing a copper grade of 1.66 percent with a 0.35% gold by-product.  Shaft 2 is a multifaceted effort with construction of infrastructures, both on surface and underground.  Mining will be executed at a depth of 1284 meters from the surface once the shaft sinking is completed.  The underground infrastructure will consist of a new crusher station and conveying system.  The ore once hoisted will be delivered to the concentrator via the new conveying system.  With the increased ore production, the mine ventilation and dewatering systems are being upgraded.  Oyu Tolgoi mine will employ 4000 people.  The first ore production from Shaft 2 is scheduled for the first quarter 2020 with LOM in exceedance of 50 years.

Services offered:


  • Reviewing of commissioning execution plan and commissioning procedures
  • Support the planning of activities related to commissioning and start‐up
  • Support in QA/QC, POV, commissioning and start‐up phases of the project
  • Mobilization of a team of engineers and commissioning technicians on site
  • Assist with commissioning systems in both manual and automatic modes and hand‐over of systems
  • Prioritizing and managing identified deficiencies, report out on progress until closure

Complete a benchmarking study focused on the history and risks of global UG mining operational performance of large crushers during the commissioning phase.