Marathon continues to drill good grades at Valentine

Premier's royalty portfolio includes mines in Argentina, South Africa and Brazil.

Project will extend Trend coal mine's life by 16 years.

Berkshire Hathaway sets two-year record for stock purchases.

This are the main reasons that motivate people to pay sometimes very large sums for luxurious ornaments.

Long-running dispute between the Mongolian government and Rio over the massive copper-gold mine continues to drag on.

The South American nation is home to 30% of the world's known copper reserves.

South America hard hit.

Obert Mpofu denied Sunday a report claiming the African nation had signed a secret deal to supply Iran with uranium.

Government is not "at war" with the industry.