Klondex Reports First Quarter 2017 Results; Reiterates Full year Production Guidance of 210,000-225,000 GEO's

Klondex Mines Ltd.

RENO, NV--(Marketwired - May 04, 2017) - Klondex Mines Ltd. (TSX: KDX) (NYSE MKT: KLDX) ("Klondex", the "Company", "we", "our", or "us") is pleased to announce its operational and financial results for the first quarter of 2017. This press release should be read in conjunction with our 2017 first quarter report on Form 10-Q, which includes our unaudited Condensed Consolidated Financial Statements and related Management's Discussion and Analysis of Financial Condition and Results of Operations ("MD&A"), which are available on our website (www.klondexmines.com), on SEDAR (www.sedar.com), and on EDGAR (www.sec.gov). All dollar amounts included in this press release are expressed in thousands of United States dollars, unless otherwise noted, and are based on our MD&A and our unaudited Condensed Consolidated Financial Statements, which were prepared in accordance with Generally Accepted Accounting Principles in the United States ("GAAP"). References to "Notes" refers to the notes contained in the first quarter of 2017 unaudited Condensed Consolidated Financial Statements. "Nevada Operations" consists of the Fire Creek and Midas mines.