Serbia offers to help Chinese companies to ease project delays

The number of registered artisanal miners, or barrequeros, inside Colombia now top 100,000 and production should keep rising.

But authorities and miners say calls for a global moratorium on coal mines ignore the scale of global demand for energy.

The Ohio-based company says the new ozone standards will severely harm the country's already battered coal industry.

The situation, says the ratings agency, won’t change over the next 12 to 18 months, and metal prices may fall even further.

The NSW Department of Planning has recommended conditional approval of the much needed and long-debated mine expansion, as its current permit expires in June 2017.

The case, filed with the U.S. Commerce Department late last week, is considered the first formal move to curb China's aluminum exports.

Rick has seen too many cycles to answer a question like that.

The copper mine, one of the world's biggest, is on track to begin production in the first quarter of 2016, despite weak prices and relentless protests against the project.

They argue Oregon's ban on using machines during in-stream mining of precious metals violates federal laws.