In 2014, 2,866 meters were drilled in nine diamond-drill perforations from inside the mine aimed at intercepting the Mary Vein, to delineate new inferred resources with 70 x 70 meter grids at 200 meters below 1,070 level (3,960 masl). The boreholes also intercepted the Ramal Mary and Tensionales veins with positive results in terms of polymetallic mineralization, mainly zinc. The ore potential in Manto Principal has been confirmed with favorable results.

During 2019, production was mainly from the Mary and ML veins, contributing 79% of the total production. In the West Zone, the exploitation of the Huaripampa Body began in NV_1070, the Main mantle in NV_1020 and the Galactic Body in NV_780, contributing in sum 15% of the total production and with a greater contribution in Zn and Ag ; In this area, exploitation with the OCF method with the use of Hydraulic Fill is consolidated.

The DDH exploration was directed to the Mary vein in the deepening, to the Huaripampa body and to the Main mantle in the west zone, upper part of the mine.

Work was completed on the 1220 level pumping system project, with a capacity of 130 l / s that will give the system greater reliability.

The production of tons of ore from Carahuacra decreased by 10.86% compared to 2018, while in terms of fines the production of Zn and Ag decreased by 20.81%, 19.13% respectively, the production of fines from Pb increased by 32.27%.

The operation of the Victoria concentrator plant is automated, including Courier online analysis systems and a control system that regulates the ratio of water to ore during the milling process. It is worth highlighting that the Victoria concentrator plant can separate low-grade lead and copper concentrates by flotation.

At this plant, zinc recovery was 93.7%, lead recovery was 86.8%, while copper recovery was 34.1% and silver recovery was 83.5%.