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 the year, mine development and preparation work increased with a view to raising production and reaching 2,500 tpd capacity. In order to achieve this goal, an intense campaign was conducted consisting of developing ramps and accesses to three different ore veins. 100% production was obtained using long-hole drilling methods.

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%.