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) - Seite 2

Mr. Brian Morris, Senior Vice President, Exploration said, "The results from the drilling on the 710 structural zone are extremely encouraging. These results further extend the known mineralization up and down dip from the highly prospective 710 zones." Mr. Morris continued, "This latest phase of drilling has expanded the overall plunge on the 710 zone to approximately 1,500 ft vertically. Moreover, we continue to see higher grade mineralization at depth and the structure is still open down dip and along strike to the east."

Assays were performed by TSL Laboratories, an ISO 17025 accredited independent laboratory located in Saskatoon, Saskatchewan, and samples were collected and shipped under the supervision of Klondex staff.

A description of the data verification methods, quality assurance program and quality control measures applied can be found in the technical reports titled "Technical Report and Pre-Feasibility Study on the True North Mine, Bissett, Manitoba, Canada", dated May 12, 2017 and with an effective date of March 31, 2017 which is available under the Company's issuer profile on SEDAR at www.sedar.com.

About Klondex Mines Ltd. (www.klondexmines.com)
Klondex is a well-capitalized, junior-tier gold and silver mining company focused on exploration, development, and production in a safe, environmentally responsible, and cost-effective manner. The Company has 100% interests in three producing mineral properties: the Fire Creek Mine and the Midas Mine and ore milling facility, both of which are located in the state of Nevada, USA, and the True North Gold Mine and mill in Manitoba, Canada. The Company also has 100% interests in two recently acquired projects, the Hollister mine and the Aurora mine and ore milling facility, also located in Nevada, USA.

Qualified Person
Scientific and technical information in this press release has been reviewed and approved by Brian Morris (AIPG CPG-11786), a "qualified person" within the meaning of NI 43-101.

Cautionary Note Regarding Forward-looking Information
This news release contains certain information that may constitute forward-looking information or forward-looking statements under applicable Canadian and United States securities legislation (collectively, "forward-looking information"), including but not limited to the exploration potential at the True North Gold Mine, and future exploration and production plans of Klondex. This forward-looking information entails various risks and uncertainties that are based on current expectations, and actual results may differ materially from those contained in such information. These uncertainties and risks include, but are not limited to, the strength of the global economy; the price of gold; operational, funding and liquidity risks; the degree to which mineral resource estimates are reflective of actual mineral resources; the degree to which mineral reserve estimates are reflective of actual mineral reserves; the degree to which factors which would make a mineral deposit commercially viable are present; the risks and hazards associated with underground operations; and the ability of Klondex to fund its substantial capital requirements and operations. Risks and uncertainties about the Company's business are more fully discussed in the Company's disclosure materials filed with the securities regulatory authorities in Canada and United States available at www.sedar.com and www.sec.gov, respectively. Readers are urged to read these materials. Klondex assumes no obligation to update any forward-looking information or to update the reasons why actual results could differ from such information unless required by law.