How miners are using autonomous drones

The order would be the largest in history for Vale's giant ships, known as Valemaxes, which can carry up to 400,000 deadweight tons.

But the miner revised down its 2015 U.S. iron ore sales and production volume estimate to 20.5 million tons, from its previous guidance for 22 million tons

Torrential rain in Chile's desert region and environmental protests dented first-quarter output, forcing the miner cut its annual production forecast.

As much as three quarters of investors voted in favour of a non-binding motion to change the way the gold giant compensates its executives.

Western Canadian Select crude, North America’s best-performing grade in the past month, may strengthen further as reduced drilling frees up pipeline room.

Analysts are not sure what to make of El Salvador’s recent move that saw its central bank sell about 80% percent of its gold reserves last month.

It revoked a 2013 ruling blocking the miner's plans to build a key processing plant at is Skouries gold-copper mine in the country's north.

The company, dealing with aging mines, has been leaning on a wide range of new technologies to reduce operating costs and increase efficiencies.

Chinese companies, private equity firms including Mick Davis’s X2 Resources, and even Teck Resources are rumoured to be among the potential buyers.