Sierra Metals Completes First Phase of Drill Campaign

Sierra Metals (TSX: SMT) (BVL: SMT) (Sierra Metals or the Company) today announced initial assay results the from exploration drill program at the Santa Rosa de Lima zone located within the Cusi Mine property in Cusihuiriachi, Chihuahua state, Mexico.

Drilling has confirmed a high-grade mineralized deposit, located adjacent to the current operations. The Santa Rosa de Lima zone is a regional structure, that has been identified in the area extending for 12 kilometers. The Main mineralized zone extends over 1,000 meters in length, 400 meters in depth and is open along strike to the Northwest and Southeast.

Alonso Lujan, VP Exploration at Sierra Metals, said:

These drilling program results confirm the existence of high-grade silver mineralization and demonstrate a significant potential for our operations at the Cusi Mine. We are currently following up on this initial drilling program with an in-fill drill program to move the assay results into a measured mineral resource category which will be included in an updated mineral resource estimate for the Cusi mine expected to be released early in the fourth quarter.

Intercepts such as those returned in Holes 6, 14, 15 and 28 are characteristic of high grade epithermal deposits. Additionally, there is further potential to expand the exploration success at depth and along strike at the Santa Rosa de Lima zone as well as with other zones including the San Rafael Vein, San Nicolas Vein and the Bordo Fault. We look forward to further potential discoveries as we continue to explore the Cusi Mine district.

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