In 2013, Mexico’s Cobre del Mayo (CDM) was attempting to solve common, yet complex issues at its open-pit copper mine in southern Sonora, 21 kilometers from the town of Alamos. CDM produces grade-A copper cathode, supplied as refractory, and vein-type ore for processing into concentrate. The mine is a copper porphyry system, structurally controlled by shear faulting with mineralization stockwork, disseminated and variable depth ranging oxidation.

Senior MineSight Specialist Ernesto Vivas and Luis Zozaya, Chief Engineer, Cobre del Mayo, discuss how the alignment of mine planning with operation has dramatically improved performance at the Piedras Verdes mine.