A golden light in volatile times; Near-term Cash Flows @ Fire creek CORPORATE Presentation KDX:TSX; KLNDF:OTCQX June 201

1. A golden light in volatile times; Near-term Cash Flows @ Fire creek CORPORATE Presentation KDX:TSX; KLNDF:OTCQX June 2013

2. FORWARD-LOOKING STATEMENTS Forward-Looking Statements This presentation may include certain statements that may be deemed “forward-looking statements." All statements in this presentation or those made by Klondex management or representatives, other than statements of historical facts, including the likelihood that bulk sampling will generate significant revenues and the possible results of future exploration are forward-looking statements. Although the Company believes the expectations expressed in such forward-looking statements are based on reasonable assumptions, such statements are not guarantees of future performance and actual results or developments may differ materially from those in the forward-looking statements. Factors that could cause actual results to differ materially from those in forward-looking statements include unsuccessful exploration results, inability to obtain necessary permits and regulatory approvals, changes in metals prices, currency fluctuations, changes in the availability of funding for mineral exploration, unanticipated changes in key management personnel, unavailability of necessary equipment and contractors, and general economic conditions. Mining is an inherently risky business. There is no guarantee that the Company will be able to carry out their work programs or that the results of those work programs will be successful. Accordingly, the actual results may differ materially from those projected in the forward-looking statements. For more information on the Company and the risks and challenges of their businesses, investors should review the Company filings available at www.sedar.com and www.klondexmines.com. CAUTIONARY NOTE TO U.S. INVESTOR CONCERNING RESOURCES This presentation uses the terms “Indicated and Inferred” resources as defined in accordance with National Instrument 43-101. While such terms are recognized and required by Canadian Securities laws, the United States Securities and Exchange Commission does not recognize them. Under the United States standards, mineralization many not be classified as a “reserve” unless the determination has been made that the mineralization could be economically and legally produced or extracted at the time the reserve calculation is made. “Inferred Resources” have a great amount of uncertainty as to their economic and legal feasibility and readers are cautioned not to assume that all or any part of the inferred resources exists or is economically mineable.

3. MANAGEMENT – OPERATIONS-FOCUSED Paul Huet – President, CEO and Director • 25 years high-grade mining experience, particularly in narrow vein gold mining in Nevada • Led team taking Hollister Mine to 80k-100k gold equivalent oz/year; Mine Manager of Newmont’s Midas Mine; COO at Premier Gold • Extensive experience/knowledge in Mine Operations, Engineering, Geology, Exploration, Permitting and Safety Jorge Avelino – Chief Financial Officer • 25+ years of accounting and financial management experience across range of industries and public companies • Public resource company experience since 1986 Mike Doolin – General Manager • 25-years with extensive experience in design and permitting of mining projects • Substantial experience in milling, metallurgy and assay operation; successfully managed large and small teams on multiple projects • Most recently served with Great Basin Gold as Esmeralda Mill Manager Dr. Shuai Chen – Chief Engineer • 17-yrs designing projects, specializing in underground mine design, planning and ground and cost controls in Nevada • Previously Chief Engineer for Atna Resources’ Pinson mine, Senior Engineer for Great Basin Gold’s Hollister mine and Senior Mining Engineer for Newmont’s Midas Mine Steve McMillin – Chief Geologist • 25 years experience including grass-roots, near-mine exploration and underground production • Previously with US Steel, Newmont Exploration Ltd., Anglo Gold Jerritt Canyon, Queenstake Resources, Midway Gold Sid Tolbert – Mine Superintendent • 20 years of mining experience with extensive knowledge in the extraction of narrow, high-grade gold vein systems in Nevada • 14 years with Newmont, including Mine Superintendent and Foreman at the Midas Mine and its Vista project at Twin Creeks • Extensive knowledge and understanding of underground mining methods, ground conditions, budgets and dilution management Lucy Downer – Environmental Manager • 18 years of environmental experience and has been instrumental in the success of several mining and environmental projects across North America, primarily within Nevada • Graduated from Queens University in Ontario with an Engineering: Mining and Mineral Processing degree

4. Klondex- Highlights • Proven operations-focused management team • High-grade gold in safe mining jurisdiction • Straightforward and simple deposit • Fully-permitted to initiate small scale gold production at Fire Creek in 2013 • Low cash costs expected for 2013 trial mining • Opportunity for upside: • KDX trading at a discount to peers: EV/oz: $33/oz (MI&I) vs. avg. $45/oz Fire Creek Ongoing Milestones: Small-Scale Gold Production from Bulk Sample at Fire Creek - Q3 2013 Critical Path to Cash Flows:

5. FIRE CREEK - INFRASTRUCTURE ALREADY IN PLACE Strategic location with local infrastructure: • Located in the heart of Nevada’s gold trends with world-class mines as neighbours • At the intersection of Northern Nevada Rift (NNR) & Battle Mountain Trends • NNR host to Midas, Hollister, and Fire Creek: narrow vein epithermal gold deposits • Fire Creek and the Jerritt Canyon Mill accessible via federal and state roads • Favourable regulatory environment • 5000 ft+ of underground workings already excavated (ramp, decline and cross cuts) • Power substation complete and connection to transmission line completed March 2013 • Connection to site from substation pending JERRITT CANYON MILL

6. FIRE CREEK -CASH FLOWS EXPECTED 2013 • Bulk Sample to begin in Q3 2013 • Toll milling and transportation agreement with Veris Gold to Jerritt Canyon Mill, 120 miles NE • $112.50/ton milling; $36/ton transportation • Toll milling and transportation costs: $148.50/ton • Start extracting from the Joyce Vein, at crosscut 5400 • Joyce Vein (A Vein): 0.9 m @ 95.5 g/t • Vonnie Vein (B Vein): 1.5m @ 43.5 g/t • 2013: deliver ~8,000 ozs AuEqfrom bulk sample • Upon completion of updated resource and PEA, projections for 2014 and 2015 targets will be available. • Initial test-work supports +90% Au recoveries N Joyce Vein 5730 cross cut Vonnie Vein 5400 cross cut Portal Surge Ponds and Water Treatment Plant Office buildings and core shack 500 ft 1000 ft

7. 2013 UNDERGROUND IN-FILL DRILLING PROGRAM • Heavy red lines: 2013 u/g infill drill program: ~5 holes per fan • Heavy black lines, completed 2013 fans, assays pending Target continuity of mineralization to the east • Drilling on 23m (75ft) spacing • ~ 9,754m (32,000 ft) of drilling • Prior surface was drilling on 50m (164ft) spacing • 16 easterly drill fans, 3 - 4 holes per fan • East/West drill fan 9 complete; Fan1 assays pending; currently drilling Fan 2 • Five westerly drill holes in fan 9 to test southern extension of vent raise access N 13 opt Au UNDER EXPLORED WEST ZONE 0.48 opt Au over 42.8 ft

8. FIRE CREEK – RESOURCE MODEL • Current resource of 1.6M ozs Indicated and 458k ozs Inferred, dated May 2011 • Updated resource estimate targeted mid-2013, by Micon International • Will include 240,000 ft of core re-logging & geology review; and an additional 120,000 feet of core drilling • Source: Technical Report Data as of May 21, 2011; Released September 12, 2011Note: *At variable Au prices we can selectively mine areas and remain economic Underexplored on strike and at depth

9. MAIN ZONE CONTINUITY, WEST ZONE DISCOVERY • MAIN ZONE CONTINUITY, WEST ZONE DISCOVERY Tremendous exploration potential • Gold resources on less than 7% of the land package • Main Zone: Underground in-fill drilling • Joyce Vein: width and grade increases north from 5400 drift to 5370 drift • Joyce Vein: new potential splay before the 5400 drift • 496.7 g/t (14.5 opt) Au over 1.82m (6ft) (press release: Jan. 2, 2013) • True width at 5370-ACC crosscut estimated at 1.7m (5.5ft) • West Zone: mineralization discovered by excavating the vent raise access • 3.6opt (123.9g/t) Au over 5ft (1.5m) at 528ft –533ft • Fan 9: drilling in all 5 holes intercepted gold mineralization • South Zone: Near Portal discovery (April 2013) • 0.53 opt (15.5 g/t) Au over 42.8ft (13m) FC12-029U N Exploration drifting at 5370 cross cut in Joyce Vein West Zone: Fan 9 drilling

10. FIRE CREEK BULK SAMPLE PERMITS • Issued Permits • Secured NDEP 6-month temporary discharge permit: 3/13 • BLM permit # N-56088 Amendment allowing NV Energy to connect to offsite substation: 12/12 • Class II Air Quality Operating Permit #AP1041-2774 (State): 3/11 & 7/12 • Water Pollution Control Permit #NEV2007104 (State): 3/11, 11/11 & 6/12 • BLM Notice to Proceed (Fed): 9/10 • Future Permits • Rapid Infiltration Basin (RIB) Permit – in process • Geotechnical work begun to complete final RIB design • Easements to bring power on site – in process • Revised Plan of Operations (BLM) and Water Pollution Control Permit (State) – in process • NEPA documentation to expand to full production – initiated

11. KLONDEX ROAD MAP ✔ ✔ ✔ ✔ ✔ ✔ ✔ ✔ ✔ ✔

12. KLONDEX MINES LTD. Board of Directors Larry Phillips, Chairman, Co-founder IAMGold Rodney Cooper, Labrador Iron Mines Jamie Haggarty, JELL Advisors Paul Huet, President and CEO William Matlack, Scarsdale Equities Blair Schultz, K2 and Associates

13. KDX Share price performance vs. Peers • 3-mo Average Daily Trading Volume: 69,700 Source: Morningstar.com

14. KLONDEX SPONSORSHIP • Klondex’s top shareholders include leading resource investors and substantial management ownership. • * Includes shares, warrants, options Top Shareholders Coverage

15. ATTRACTIVE VALUATION VS. JUNIOR GOLD PEERS • based on MI&I resources, up to May 3, 2013 • KDX: Ind. 1.6M oz Au; Inf. 0.4M oz Au. • Source: FactSet, Bloomberg, equity research and corporate disclosure • Note: Gold equivalent resources and production shown on a precious metals basis only; enterprise value adjusted to exclude minority interest when calculating resource and production valuation multiples Klondex sells at a significant discount toits peer group on an EV/resource basis, yet Klondex has: • Strong management & Board • Funding in place • Great location • Impressive grade • Significant resource • Permitting largely in place • Direct site grid power imminent • Paved road access to toll mill • Near-term production from bulk sample EV / MI&I AuEq (Inclusive)

16. CONTACT INFORMATION Klondex Mines Ltd. Suite 600, 595 Howe Street Vancouver, British Columbia V6C 2T5 www.klondexmines.com Paul Huet, President & CEO 807-939-2841 investors@klondexmines.com Alison Tullis, Manager, IR 647-233-4348 atullis@klondexmines.com Investors & Media: David Collins, Toni Trigiani Catalyst Global LLC 212-924-9800 kdx@catalyst-ir.com Fire Creek worker/contractor mine safety board KDX:TSX KLNDF:OTCQX