Labour action threatens Chile's Chuquicamata copper mine

Chile, the world's biggest copper producer, faced a fresh threat of labour action in the sector on Wednesday when a union at the large Chuquicamata mine said it had blocked access as a "warning" over planned changes to job opportunities. Mine owner Codelco said the union's action, which affected the early shift, was "illegal." It ended by 9 am and the impact on production was being evaluated, it said in a statement.