The giant copper miner is also planning to sell about $8 billion of bonds over the next five years to help finance a nearly $30bn investment program aimed to revamp its aging mines.
The firm is developing a trio of staggeringly huge copper deposits on the Chilean-Argentine border that contain a total of over 28 billion pounds of copper and 19 million ounces of gold resources (only two of the deposits have resource estimates on them).
The country’s environmental authority criticized the Top Court decision saying the miner conducted proper consultation with local indigenous groups and shouldn’t have to do it again.
The shine may soon come off Chile's decade-long copper boom as technical and regulatory problems in getting new mines into production highlight just how hard it will be to keep ratcheting up the supply.