South America’s largest coal supplier risks losing its main customers to the US as mounting issues affecting major coal miners in the country have started to disrupt supply.
The violence comes as union leaders and company executives prepare to hold talks today, hoping to end a strike that is costing the company millions of dollars a day.
The precious metal producer posted higher quarterly profit and revenue compared with a year ago and said it expects to see at least a 20% increase in output for 2013.