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Oyu Tolgoi Board of Directors Appoints Chief Development Officer for Underground Development

Ulaanbaatar, Mongolia,

Oyu Tolgoi has appointed Marco Pires as Chief Development Officer – Underground, a critical role as the preparatory works for the project continue to progress.

In this position, Marco Pires will be responsible for the Hugo North Lift 1 Underground project. Marco Pires has more than 30 years of global mining experience in copper, gold, potash, nickel and metallurgical coal, working in Brazil, Canada and Australia.

Batsukh Galsan, Chairman of Oyu Tolgoi’s Board of Directors, said: “The Board of Directors is pleased to welcome Marco to Oyu Tolgoi’s senior management team. His appointment is significant in delivering the potential of Oyu Tolgoi – and our mission of building a safe and globally competitive copper business that contributes to the prosperity of Mongolia.”

Andrew Woodley, Chief Executive Officer of Oyu Tolgoi said: “The development of the underground mine is critical to ensuring the long-term future of Oyu Tolgoi, and I am delighted to have someone of Marco’s calibre and experience working with us on this project, and to further enhance our culture of safety and excellence.”

Marco Pires, Chief Development Officer – Underground, of Oyu Tolgoi, said: “Oyu Tolgoi is one of the most promising copper and gold projects in the world and is already a world-class business. I am deeply impressed with the quality and talent of our workforce, and am looking forward to my time here in Mongolia.”

Marco Pires joins Oyu Tolgoi from BHP Billiton Mitsubishi Alliance, where he was head of Projects, BMA Coal and responsible for sustaining and brownfield projects from early development to construction. Prior to that, he held senior operations, business development and projects roles with Vale and Anglo American. He holds a Bachelor of Engineering with major in metallurgy and mining, and a Masters of Business Administration.

About Oyu Tolgoi LLC (www.ot.mn)

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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