Pueblo Viejo is one of the largest primary gold mines developed this century at a final capital cost of US$3.8 billion. The mine is a 60:40 joint venture between Barrick Gold (operator) and Goldcorp. The ore is refractory, and is treated via "whole ore pressure oxidation". Full production capacity was achieved in H2 2014. The mine produced in excess of 1Moz/a between 2014 and 2017, and is expected to average 700koz/a thereafter.