Toronto, ON – May 15, 2023 – Sierra Metals Inc. (TSX: SMT) (“Sierra Metals” or “the Company”) today reported financial results for the three-month period ended March 31, 2023, including revenue of $58.5 million and adjusted EBITDA(1) of $15.2 million on throughput of 577,284 tonnes and metal production of 18.0 million copper equivalent
pounds.