BHP mulls bid for Blackstone-backed Bluewater

Workers perform a maintenance check inside the Codelco Ministro Hales mine complex 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
Workers perform a maintenance check inside the Codelco Ministro Hales mine complex 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

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