Sierra Metals Inc. announced that Oscar Cabrera has been appointed as Chair of the Board of Directors of the Company (the "Board"). Mr. Cabrera joined the Board in October 2021 and replaces Mr. Jose Vizquerra as Chair. Additionally, the Board appointed Miguel Aramburu as its newest member.

Mr. Aramburu has over 25 years of professional experience with 15 years dedicated to the mining sector, currently serving on the Board of STRACON S.A.C, a mining contractor, and Minsur S.A., a Perú based mining company.