Vancouver, B.C. MAG Silver Corp. (TSX and NYSE AMERICAN: MAG) (“MAG” or the
“Company”) announces the Company’s unaudited financial results for the three months ended March 31, 2018. For details of the March 31, 2018 unaudited condensed interim consolidated Financial Statements and Management’s Discussion and Analysis, please see the Company’s filings on SEDAR (www.sedar.com) or
on EDGAR (www.sec.gov).