Klondex Reports Solid First Quarter Operating Results with 57,633 GEOs Mined; Reiterates Full Year Production Guidance of 210,000 - 225,000 GEOs

Klondex Mines Ltd.

RENO, NV--(Marketwired - April 19, 2017) - Klondex Mines Ltd. (TSX: KDX)(NYSE MKT: KLDX) ("Klondex" or the "Company") is pleased to report its preliminary operating results for the first quarter of 2017 for its Nevada and Canadian operations.