BHP said its Escondida copper mine, the world’s largest, was operating at a "reduced rate" after union workers walked off the job for part of the day on Tuesday in solidarity with the anti-government protest movement across Chile.
Chile, the world’s top copper producer, has long been one of the region’s most prosperous and stable free-market economies. But entrenched inequality and spiraling costs of living ignited massive, and sometimes violent, protests last week.