A plume of smoke rises at the Codelco Chuquicamata open pit copper mine near Calama, Chile, on Thursday, Aug. 2, 2018. Protests at the Chuquicamata copper mine in late July were the first labor disruptions in Chile this year, and happened amid calls for a strike from the union at the world's largest mine, BHP Billiton Ltd.'s Escondida. Photographer: Cristobal Olivares/Bloomberg
A plume of smoke rises at the Codelco Chuquicamata open pit copper mine near Calama, Chile, on Thursday, Aug. 2, 2018. Protests at the Chuquicamata copper mine in late July were the first labor disruptions in Chile this year, and happened amid calls for a strike from the union at the world's largest mine, BHP Billiton Ltd.'s Escondida. Photographer: Cristobal Olivares/Bloomberg

BHP Group llegó a un preacuerdo salarial con líderes sindicales en Chile, lo que indica que la empresa podría evitar una costosa huelga en una mina de cobre que representa aproximadamente el 1% del suministro mundial de metal para cables.