Klondex Reports Third Quarter 2017 Financial Results; Reiterates Full-Year Total Company Production Guidance of 213,000 - 230,000 GEOs at Production Cash Cost of $675 - $700 per GEO Sold

VANCOUVER, BC--(Marketwired - November 09, 2017) - Klondex Mines Ltd. (TSX: KDX) (NYSE American: KLDX)("Klondex", the "Company", "we", "our", or "us") is pleased to announce its operational and financial results for the third quarter of 2017. This press release should be read in conjunction with our 2017 third 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 ("GAAP") in the United States. References to "Notes" refers to the notes contained in the third quarter of 2017 unaudited Condensed Consolidated Financial Statements.