Press release

Oyu Tolgoi transfers major power line asset to government of Mongolia

Ulaanbaatar, Mongolia,

  • Approximately 96km of high-quality transmission line connecting Umnugobi to the Mongolia-China border
  • The 220kv double circuit transmission line was built in 2011, and reached operational status in July 2012
  • Line has achieved 100 per cent availability and 99.8 per cent reliability over two years of commercial operations
  • Population centres and industry in region benefit from access to high quality reliable power
  • Line forms an important energy pathway connecting China and Mongolia, and improves Mongolia’s energy security

Oyu Tolgoi LLC today signed two major agreements with the National Power Transmission Grid company to transfer and maintain the 96km power line, built and owned by the company, running between the Oyu Tolgoi site in the Umnugobi region and the Mongolia-China border.

State Secretary for Ministry of Energy D. Delgertsogt, Erdenes MGL CEO B. Byambasaikhan, senior government representatives, Rio Tinto Country Director S. Munkhsukh and, Oyu Tolgoi Chief Financial Officer Steve Duggan participated in the signing ceremony.

State Secretary for Ministry of Energy D.Delgertsogt said “This is an important day for the energy sector of Mongolia. Our national power grid now connects to our two neighbours with reliable, high-quality infrastructure, helping Mongolia’s energy security in the near term, and in the long term, supporting our transition from an energy importing nation to an exporter.

“This also supports our strategy, under the Power Sector Cooperation Agreement signed with Oyu Tolgoi, to enhance access to reliable power in the Umnugobi region to support population centres and the growth of industry.”

Speaking at the event Steve Duggan said “We are proud to deliver on our commitment in transferring this high-quality asset to the Government of Mongolia. This is a noteworthy example of Oyu Tolgoi achieving goals together with our stakeholders. The power line is important not just for Oyu Tolgoi, but can be a catalyst for greater development in the region.”

The line was built in 2011 to allow for the import of electricity from China to support Oyu Tolgoi’s operations. The agreement completes the Company’s commitment of transferring ownership of the asset to the Government of Mongolia. The transfer also ties into the August 2014 ‘Power Sector Cooperation Agreement’ between the Government of Mongolia and Oyu Tolgoi, which aims to work towards a power solution for the Umnugobi region, providing a pathway for strengthening the power supply network in Mongolia.

About Oyu Tolgoi LLC (

Oyu Tolgoi LLC, Mongolia's largest copper and gold mining company, is a strategic partnership between the Government of Mongolia, Turquoise Hill Resources and Rio Tinto. Located in the South Gobi, Oyu Tolgoi commenced shipment of product to customers in July 2013. Oyu Tolgoi is managed by Rio Tinto, which is investing global expertise and cutting-edge technology to help develop Mongolia’s mining industry and ensure Oyu Tolgoi is one of the world’s most advanced mines. For Oyu Tolgoi, nothing matters more than safety. The business operates under the principle that if a job cannot be done safely, it will not be done at all.

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