Sierra Metals Inc. (TSX: SMT | OTCQX: SMTSF) ("Sierra Metals" or "the Company") is pleased to announce that it begins trading today on the OTCQX Market in the United States under the symbol “SMTSF.”

Ernesto Balarezo, CEO of Sierra Metals, commented, “Qualifying for the OTCQX Market is a milestone in our efforts to increase visibility and accessibility for our current and prospective U.S. and international shareholders. Sierra is well positioned for growth at its mines in Peru and Mexico and we intend to support our OTCQX listing with a robust investor relation program.”

Sierra Metals continues to trade on the Toronto Stock Exchange under the symbol “SMT”.

Dentons US LLP acted as the Company’s OTCQX sponsor.

U.S. investors can find current financial disclosure and Real-Time Level 2 quotes for the Company on www.otcmarkets.com.

Upgrading to the OTCQX Market is an important step for Sierra Metals and other companies seeking to provide transparent trading for their U.S. investors. For companies listed on a qualified international exchange, streamlined market standards enable them to utilize their home market reporting to make their information available in the U.S. To qualify for OTCQX, companies must meet high financial standards, follow best practice corporate governance and demonstrate compliance with applicable securities laws.

About OTC Markets Group Inc.

OTC Markets Group Inc. (OTCQX: OTCM) operates regulated markets for trading 12,000 U.S. and international securities. The OTC’s data-driven disclosure standards form the foundation of three public markets: OTCQX^® Best Market, OTCQB^® Venture Market and Pink^® Open Market. The OTC Link^® Alternative Trading Systems (ATSs) provide critical market infrastructure that broker-dealers rely on to facilitate trading. The OTC Markets innovative model offers companies more efficient access to the U.S. financial markets. OTC Link ATS, OTC Link ECN and OTC Link NQB are each an SEC regulated ATS, operated by OTC Link LLC, a FINRA and SEC registered broker-dealer, member SIPC. To learn more visit www.otcmarkets.com.

About Sierra Metals

Sierra Metals is a Canadian mining company focused on copper production with additional base and precious metals by-product credits at its Yauricocha Mine in Peru and Bolivar Mine in Mexico. The Company is intent on safely increasing production volume and growing mineral resources. Sierra Metals has recently had several new key discoveries and still has many more exciting brownfield exploration opportunities in Peru and Mexico that are within close proximity to the existing mines. Additionally, the Company has large land packages at each of its mines with several prospective regional targets providing longer-term exploration upside and mineral resource growth potential.

Forward-Looking Statements

This news release contains forward-looking information within the meaning of Canadian securities legislation. Forward-looking information relates to future events or the anticipated performance of Sierra Metals and reflects management's expectations or beliefs regarding such future events and anticipated performance based on an assumed set of economic conditions and courses of action including the accuracy of the Company's current mineral resource estimates, that the Company's activities will be conducted in accordance with the Company's public statements and stated goals, and that there will be no material adverse change affecting the Company, its properties or its production estimates, the expected trends in mineral prices, inflation and currency exchange rates, that all required approvals will be obtained for the Company's business operations on acceptable terms, and that there will be no significant disruptions affecting the Company's operations. In certain cases, statements that contain forward-looking information can be identified by the use of words such as "plans", "expects", "is expected", "budget", "scheduled", "estimates", "forecasts", "intends", "anticipates", "believes" or variations of such words and phrases or statements that certain actions, events or results "may", "could", "would", "might", or "will be taken", "occur" or "be achieved" or the negative of these words or comparable terminology. Forward-looking statements include statements with respect to investor relations programs. By its very nature forward-looking information involves known and unknown risks, uncertainties and other factors that may cause actual performance of Sierra Metals to be materially different from any anticipated performance expressed or implied by such forward-looking information.

Forward-looking information is subject to a variety of risks and uncertainties, which could cause actual events or results to differ from those reflected in the forward-looking information, including, without limitation, the risks described under the heading "Risk Factors" in the Company's annual information form dated March 28, 2023 for its fiscal year ended December 31, 2022 and other risks identified in the Company's filings with Canadian securities regulators, which filings are available at www.sedarplus.ca.

The risk factors referred to above are not an exhaustive list of the factors that may affect any of the Company's forward-looking information. Forward-looking information includes statements about the future and is inherently uncertain, and the Company's actual achievements or other future events or conditions may differ materially from those reflected in the forward-looking information due to a variety of risks, uncertainties and other factors. The Company's statements containing forward-looking information are based on the beliefs, expectations, and opinions of management on the date the statements are made, and the Company does not assume any obligation to update such forward-looking information if circumstances or management's beliefs, expectations or opinions should change, other than as required by applicable law. For the reasons set forth above, one should not place undue reliance on forward-looking information.

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