The CPI alleges the company did not declare how much gold and silver was extracted from the Salobo mine.

The initiative is part of a collaboration between IOC and the local college through the RAIL Centre of Expertise.

Pacheco was responding to a report last month from copper studies center CESCO that said if production promises are not met, high levels of debt could lead to insolvency.

Authorities said they will take any findings from the visit into account to clear any doubts about the contract among lawmakers and the population and mull appropriate changes.

CEO Peter Steenkamp is set to retire in December 2024.

The company expects lab-grown prices to continue to decline as more supply comes into the market.