Leading Independent Proxy Advisory Firms Recommend Primero Shareholders Vote in Favour of Proposed Arrangement

TORONTO, ON--(Marketwired - February 28, 2018) - Primero Mining Corp. ("Primero" or the "Company") (TSX: P) announced today that Institutional Shareholder Services Inc. ("ISS") and Glass, Lewis & Co., LLC ("Glass Lewis"), two leading proxy advisory firms, have recommended that Primero shareholders vote FOR the plan of arrangement (the "Transaction") whereby First Majestic Silver Corp. ("First Majestic") will acquire all of the issued and outstanding common shares of Primero, at their special meeting of shareholders to be held on March 13, 2018.