Mr. Ernesto Balarezo reports

SIERRA METALS SUBSIDIARY IN PERU, SOCIEDAD MINERA CORONA REPORTS Q1 2023 FINANCIAL RESULTS

Sierra Metals Inc.'s subsidiary, Sociedad Minera Corona SA, has filed at the Lima Stock Exchange (BVL) its unaudited financial statements and the management's discussion and analysis (MD&A) for the first quarter of 2023 (Q1 2023).

The company holds an 81.8-per-cent interest in Corona. The unaudited financial statements and MD&A can be viewed on-line.

To search for the company's financial statements, enter the following parameters in the empty fields:

Empresa: Sociedad Minera Corona S.A.

Periodo: 2023 and Trimestre I

Sierra Metals will be releasing its Q1 2023 consolidated financial results premarket on Monday, May 15, 2023, with management hosting a conference call and webcast on the same day at 11 a.m. EDT.

About Sierra Metals Inc.

Sierra Metals is a diversified Canadian mining company with green metal exposure, including copper production and base metal production with precious metals byproduct credits, focused on the production and development of its Yauricocha mine in Peru, and Bolivar and Cusi mines in Mexico. The company is focused on increasing production volume and growing mineral resources. The company has large land packages at all three mines with several prospective regional targets providing longer-term exploration upside and mineral resource growth potential.