VANCOUVER, July 5, 2013 /PRNewswire/ – Sierra Metals Inc. (TSX-V:SMT) (BVL:SMT) (“Sierra Metals” or the “Company”) is pleased to announce that its common shares (the “Common Shares”) have been approved for listing on the Toronto Stock Exchange (the “TSX”) and will commence trading on the TSX at the opening of market on July 8, 2013. Concurrent with the TSX listing, the Common Shares will be de-listed from the TSX Venture Exchange (the “TSXV”). The trading symbol of the Common Shares will continue to be “SMT”.

Daniel Tellechea, President and CEO of Sierra Metals, commented: “Sierra Metals is very pleased to announce another significant milestone for the Company and its shareholders. The TSX is Canada’s premier exchange and will provide access to a potentially broader capital market base.”

About Sierra Metals Inc.

Sierra Metals Inc. is a Canadian mining company focused on precious and base metals from its Yauricocha Mine in Peru, and its Bolivar and Cusi mines in Mexico. In addition, Sierra Metals is exploring several precious and base metal 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 in Northern Peru. Projects in Mexico include Bacerac (silver) in the state of Sonora, La Verde (gold) at the Batopilas Property in the state of Chihuahua, and Las Coloradas (silver) at the Melchor Ocampo Property in the state of Zacatecas.

The Common Shares also trade on the Bolsa de Valores de Lima.

Neither the TSXV nor its Regulation Services Provider (as such term is defined in the policies of the TSXV) accepts responsibility for the adequacy or accuracy of this release.

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. Other than statements of historical fact, all statements are “forward-looking statements”, which involve various known and unknown risk and uncertainties and other factors, including market conditions that may affect the Company’s ability to execute its current business plan. Actual results may 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 and until 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.

SOURCE Sierra Metals Inc.