Rio Tinto will invest $1.3 billion for the project development.

Several companies that rank as key sources of greenhouse gas emissions lack detailed proposals to meet their pledges on climate action, says Mike Cannon-Brookes

Havieron is considered one of the biggest long-life gold-copper deposits in development worldwide, with an estimated value of over $1.2 billion.

The activist investor is the second-largest shareholder of Turquoise Hill Resources.

Glencore had also sold its minority stake in the coal producer for A$442 million ($298 million) in July.

Comments come as OZ Minerals rejected last month BHP's $5.9 billion takeover bid to get control of the West Musgrave copper-nickel project.

The world's top iron ore consumer brought in 96.21 million tonnes of the steelmaking raw material last month.