Sierra Metals reported that, following its annual general meeting of shareholders held on June 25, 2024, Miguel Aramburu has been hired as Chair of the Board of Directors of the Company. Mr. Aramburu has 35 years of professional experience with 29 years related to the mining sector and joined the Board in June 2022. The Company also provides the detailed voting results from the Meeting.

Miguel Aramburu currently serves on the Board of Directors of Stracon S.A.C., a mining contractor; Minsur S.A., a Peru-based mining and exploration company; El Comercio, a News and TV media conglomerate; and Visiva, an education conglomerate. Prior to committing himself to serving on corporate boards, Mr. Aramburu held the position of CEO (2008-2010) and COO (2006-2008) of Hochschild Mining Plc. In addition, he has held progressive positions with Mauricio Hochschild Y Cia, including CEO (2004-2006), CFO (2002-2004) and General Manager for various segments of operations (1995-2002).

Mr. Aramburu holds an MBA from Stanford University and obtained his Industrial Engineering degree from Pontificia Universidad Católica del Peru.