Sierra Metals Reports Strong Q1 2023 Production Results Driven by Bolivar

TORONTO–(BUSINESS WIRE)– Sierra Metals Inc. (TSX: SMT) (“Sierra Metals” or the “Company”) is pleased to
announce rst quarter 2023 production results from its three underground mines in Latin America: the Yauricocha
polymetallic mine in Peru, the copper-producing Bolivar mine and the silver-producing Cusi mine in Mexico. All
metals prices are reported in U.S. dollars.

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