copper

Rio Tinto warns market uncertainty threatens critical mineral supply

Governments are accelerating efforts to secure critical mineral supply chains for batteries, semiconductors, AI infrastructure, and defence technologies. However, Rio Tinto says the commercial conditions needed to unlock large-scale new supply remain far less certain.
June 02, 2026

Rio Tinto rumours boost value of Oyu Tolgoi

Mongolia’s vast copper-gold project remains stuck in a rut despite rumours that Rio Tinto is closing in on a takeover of the main project company, Turquoise Hill.
March 18, 2014

Two Chinese companies seek $541 million from HK listings

BMW dealer Yongda Auto is aiming to raise at least $306 million, while copper producer China Nonferrous Mining is seeking at least $235 million from the first listing of Africa-based mining assets in Hong Kong.
May 14, 2012