Downstream consumption for stainless steel has been constrained in China, especially in Guangdong province.

Copper prices will average more than $4 a pound this year, says Diego Hernandez, head of Chilean mining society.

Decision comes after an unnamed company tried buying the miner's South African unit, which holds the mineral rights for the diamond project.

The company has been awarded three new concessions, one of which covers a deposit with more than 300,000 tonnes of copper.

Teck Resources' Copper & Heath program installs copper products on buses, subway cars, and streetcars in the Greater Toronto Area as well as buses and SkyTrains in Metro Vancouver.

Being a laggard in any one of the three ESG components will hurt brand reputation and, ultimately, profits, GlobalData analyst says.

All 39 miners had safely been brought to the surface from the Totten mine.