Yanacocha was the first modern major gold mine to be developed in Peru and currently (2018) has active open pits at Tapado Oeste Layback, La Quinua Sur, Yanacoya Layback and Quecher Main. In Q1 2018 the latter was under development and was expected to start providing leachable ore in Q4 2019. The operation has two gold processes. A 20 kt/d ore gold mill for high grade ore (1.5-2.0g/t Au) and 4 ROM heap leach pads that process 60kt/d of low grade leach ore (around 0.4-0.5g/t Au). In 2017 Yanacocha produced 534.69koz of gold. The gold mill produced 238.52koz (45% of the total) and the balance was produced by the heap leaching circuit. Additionally, Yanacocha produced 1,039.07koz of Ag and 1.5 million pounds of copper as by-products. The copper is obtained in the SART plant and the concentrate contains between 55-60%Cu. This is exported through the El Callao port.