Klondex Announces High Grade Exploration Results at True North; Intercepts 5.78 opt Au over 3.7 ft (198.1 g/t over 1.1 m)

Klondex Mines Ltd.

VANCOUVER, BC--(Marketwired - July 26, 2017) - Klondex Mines Ltd. (TSX: KDX) (NYSE MKT: KLDX) ("Klondex" or the "Company") is pleased to provide an update on underground drilling at its True North Gold Mine ("True North") in Manitoba, Canada. A portion of these drill results are included in the mineral reserve and mineral resource estimates released on May 12, 2017 and March 29, 2017, respectively.