Klondex Files Technical Report Relating to the Hollister Mine

Klondex Mines Ltd.

VANCOUVER, BRITISH COLUMBIA--(Marketwired - Aug. 4, 2017) - Klondex Mines Ltd. (TSX:KDX)(NYSE American:KLDX)(NYSE MKT:KLDX) ("Klondex" or the "Company") is pleased to report that its technical report (the "Technical Report") titled "Technical Report and Pre-Feasibility Study for the Hollister Underground Mine" has been filed on SEDAR. The Technical Report will also be filed on EDGAR and be made available on the Company's website. Practical Mining LLC authored the report, which is dated August 4, 2017, with an effective date of May 31, 2017.