The world’s top copper producer, however, is energy-starved, which has begun affecting the competitiveness of its mining sector and cramping economic growth.
Laura Albornoz, the first woman appointed director of Chile's owned Codelco, is meeting unions next week as she gets ready to vote on the company's budget.
Keller had been commended for his efforts to overhaul old mines and cut costs at Codelco, but his tough style is said to have triggered tensions within the company and its powerful unions.