Finding better ways to find the materials the world needs
Oyu Tolgoi is one of the largest known copper and gold deposits in the world. It is also one of the most modern, safe and sustainable operations in the world
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Many standout moments have helped define the first 10 years of operation at Oyu Tolgoi
LONDON 1100 GMT Underground operations at the Oyu Tolgoi copper mine in Mongolia are being progressively restarted following completion of safety reviews.A seismic event on 29 October 2026 led to a localised rockfall confined to a temporary storage zone adjacent to the production area, with no structural impact to the cave or its operating infrastructure.Two employees continue to receive trea
LONDON - 1900 GMTRio Tinto confirms that at approximately 18:00 (local time) on 29 October, seismic activity occurred along a rock fault zone at Oyu Tolgoi in Mongolia, resulting in ground vibration in the underground mine.There have been no fatalities. Three employees sustained injuries.Underground operations are currently paused in line with procedure, subject to completion of a safety review.EN
ULAANBAATAR, Mongolia – Rio Tinto and the Government of Mongolia have reached agreement to adjust the shareholder loan interest rate for the Oyu Tolgoi project1, in line with the requirement under the Shareholders Agreement to periodically review the appropriateness of the rate.Rio Tinto and the Government of Mongolia have also agreed to work together to resolve matters relating to the Entrée mine