Winners of the award demonstrate best practice in responsible production and contribute to the UN sustainable development goals.

US Energy Secretary Jennifer Granholm said the world is up against a dominant supplier of critical minerals willing to exploit its position for political gain.

Frustrations with bureaucracy that can take years to navigate were expressed at an event held in Arequipa.

"We have too many standards for the same ESG dimensions, leading to confusion and dissipated effort," Mike Henry said.

Bingham was designated a National Historic Landmark in 1966. A massive landslide occurred at the mine in 2013.

The cash contract changed hands at a discount of $70.10 a ton to three-month futures on the LME on Monday.

The court gave the provincial government 18 months to develop a constitutionally compliant system.

Southern Copper is considering spending $1 billion-plus on a new smelter in Empalme, Sonora state.