Workers strike at world's largest copper producer, Chile's Codelco
Workers at Chile's state mining company Codelco, the largest producer of copper in the world, went on an "indefinite" strike on Wednesday, unions said, protesting the closure of a foundry in one of the country's most polluted regions.. FTC president Amador Pantoja told a local television station the strike will cost Codelco -- which produces around eight percent of the world's copper amounting to 10-15 percent of Chile's GDP -- $20 million a day.