The San Ramon Mine is an epithermal underground silver mine located five kilometers southeast of the Guadalupe Production Centre which has been a significant contributor to production since 2008. In early 2014 grades dropped with depth, and production decreased. During 2014, underground drilling from the bottom levels of the mine discovered new high grade silver zones in the nearby San Ramon Deeps area and mining of this area began in Q3-2014. It has been the main source of the increase in average overall mined silver grade since then. To date this high grade vein has been exposed on multiple levels in the mine over a length of 180 meters and widths of 2 to 17 meters. Underground exploration drilling continues to test the depth extent of this zone for continued mining.