Sierra Metals Subsidiary in Peru, Sociedad Minera Corona Reports Q1-2022 Financial Results https://ca.finance.yahoo.com/news/sierra-metals-subsidiary-peru-sociedad-105000261.html Tue, May 3, 2022, 3:50 a.m.ยท9 min read (All metal prices reported in USD) TORONTO, May 03, 2022--(BUSINESS WIRE)--Sierra Metals Inc. (TSX: SMT) (BVL: SMT) (NYSE AMERICAN: SMTS)