Rio Tinto

Rio Tinto approves $144 million investment to advance Resolution Copper project

SUPERIOR, Arizona-- (BUSINESS WIRE)-- Rio Tinto has approved a $144 million investment by Resolution Copper (Rio Tinto share: $79 million) to advance the next phase of development at the project in ...
Rio Tinto

Curtin University, Rio Tinto and Rhodes Ridge Joint Venture partner to stop cane toads reaching the Pilbara

Rio Tinto and the Rhodes Ridge Joint Venture 1 are jointly investing A$28 million in a partnership with Curtin University to help deliver a 7,500-square-kilometre "waterless barrier" to stop cane ...
Rio Tinto Group

Seismic event at Oyu Tolgoi

Rio 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 ...
Rio Tinto Group

Update on Oyu Tolgoi seismic event

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 ...
Rio Tinto Group

Oyu Tolgoi underground

The Oyu Tolgoi copper mine in Mongolia is a world-class open pit mine and underground project. More than 80% of Oyu Tolgoi’s total value lies deep underground. We are building an underground mine ...