A federal appeal court on Friday questioned whether it had the power to override an act of Congress that gave Rio Tinto land in Arizona for its Resolution copper mine.

The pace of global industrial production growth is falling “quite swiftly” after an impressive spike in demand for durable goods during lockdowns.

It expects to ramp up its copper concentrate output in Salobo by Oct. 25.

The Spain-focused miner has received complete assays for the first step-out drill hole as well as the final infill drill holes from La Infanta.

On-warrant LME stocks, those not earmarked for delivery, have tumbled by over 90% since mid-August.

The London copper contract has been sucked into a stocks vacuum after the amount of available metal in warehouse system sank to the lowest since 1974, writes Andy Home.

Boliden said costs had increased due to major planned maintenance shutdowns, higher energy prices and wage inflation.

Codelco said it had reached a 36-month agreement that will not include salary adjustments.