Click to access Sierra-Metals-Files-NI-43-101-Technical-Report-on-Bolivar-Mine-in-Mexico.pdf

TORONTO, April 19, 2017 /PRNewswire/ – Sierra Metals Inc. (TSX: SMT) (BVL: SMT) (“Sierra Metals” or “the Company”) has filed a technical report prepared in accordance with National Instrument 43-101 (“NI 43-101”) on the Bolivar Mine (the “Report”). The Report supports the disclosure made by the Company in its news release dated April 11, 2017 entitled “Sierra Metals Updates Mineral Resource and Reserve Estimate for Bolivar Mine, Mexico.” and there are no material differences in the mineral reserves and resources contained in the Report from those disclosed in the news release. The report is in support of the updated Mineral Reserve and Resource estimates for the Bolivar Mine and includes: Total Indicated Mineral Resources of 9,335,000 tonnes averaging 18.1 g/t silver, 0.90% copper and 0.30 g/t gold, 1.23% CuEq Total Inferred Mineral Resources of 9,055,000 tonnes averaging 17.9 g/t silver, 0.86% copper and 0.33 g/t gold, 1.20% CuEq Total Probable Mineral Reserves of 4,327,000 tonnes averaging 17.5 g/t silver, 0.85% copper and 0.31g/t gold, 1.18% Cu Eq