TORONTO, Sept. 14, 2016 /PRNewswire/ – Sierra Metals Inc. (TSX: SMT) (BVL: SMT) ("Sierra Metals" or "the Company") is extremely pleased to announce that the Company has appointed Mr. Alonso Lujan as Vice President Exploration effective immediately.

Mr. Lujan is a Geological and Mining Engineer with over 26 years international experience in mineral exploration with a positive track record for increasing companies' resources, output and company value.  Mr. Lujan most recently spent 6 years with Mata-Trafigura as the General Manger having been promoted from Exploration and Operations Manager.  While there he oversaw the discovery and commissioning of the Magdelana Project with potential for 50 million tonnes within 2 years and helped to double production as well as optimize and reduced costs.  Prior to that he worked with Hochschild Mining for 5 years and Minas de Bacis SA de CV for 14 years where he helped to also increase resources, increase output and reduce costs.

Mark Brennan, President and CEO, commented: "We are extremely pleased to have Alonso join Sierra Metals. Alonso's extensive experience and knowledge in the discovery and exploitation of ore systems are perfectly suited to help realize the considerable geological opportunities that the Company currently has available at all of its properties."

About Sierra Metals

Sierra Metals Inc. is a Canadian mining company focused on production of precious and base metals from its Yauricocha Mine in Peru, and its Bolivar Mineand Cusi Mine in Mexico. In addition, Sierra Metals is exploring several precious and base metals targets in Peru and Mexico. Projects in Peru include Adrico (gold), Victoria (copper-silver) and Ipillo (polymetallic) at the Yauricocha Property in the province of Yauyos and the San Miguelito gold properties inNorthern Peru. Projects in Mexico include Bacerac (silver) in the state of Sonora and La Verde (gold) at the Batopilas Property in the state of Chihuahua.

The Company's shares trade on the Lima Stock Exchange (Bolsa de Valores de Lima) and on the TSX under the symbol "SMT".

Forward-Looking Statements

Except for statements of historical fact contained herein, the information in this press release may constitute "forward-looking information" within the meaning of Canadian securities law. Statements containing forward-looking information express, as at the date of this news release, the Company's plans, estimates, forecasts, projections, expectations or beliefs as to future events or results.  These statements reflect the Company's current views with respect to future events and are necessarily based upon a number of assumptions and estimates that, while considered reasonable by the Company, are inherently subject to significant business, economic, competitive, political and social uncertainties and contingencies. Actual results might differ materially from results suggested in any forward-looking statements. The Company assumes no obligation to update the forward-looking statements, or to update the reasons why actual results could differ from those reflected in the forward-looking statements unless required by securities laws applicable to the Company. Additional information identifying risks and uncertainties is contained in filings by the Company with the Canadian securities regulators, which filings are available at www.sedar.com.

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SOURCE Sierra Metals Inc.