Costs to expand the Mongolian mine, Rio's biggest copper growth project, have ballooned up to $6.75 billion from Rio's original budget of $5.3 billion in 2016.

ETH researchers produced nanocrystals made of two different metals using amalgamation.

Production fell 9.4% to 1.04 million ounces due to planned maintenance at its Nevada Gold Mine and Pueblo Viejo.

Covid-19-related work stoppages impacted Mali's gold output in 2020.

Gold could fall towards $1,700 in the near term, one analyst said.

The company lowered its output goal by about 12% after removing planned gold from the Obuasi operation.

In 2020, Brazil exported 111 tonnes of gold, 19 of which were mined without licences, Instituto Escolhas reports.