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.
The law, the first major overhaul of the country’s mining sector since 1997, denies cooperatives the right to partner with private companies, whether domestic or foreign.
South American nation desperate to raise cash to repay $11bn borrowed from China "invests" 466,000 ounces of gold reserves worth $580m with investment bank.