お知らせ • Jul 30
Hecla Mining Company Reports Second Quarter 2026 Exploration and Definition Drilling Results At Keno Hill, Midas, and Greens Creek
Hecla Mining Company reported positive second quarter 2026 exploration and definition drilling results from its Keno Hill, Midas, and Greens Creek properties, highlighted by a significant extension of high-grade mineralization at Keno Hill toward the historic Hector-Calumet Mine and discovery of new high-grade veins at Midas. Drilling extended this mineralization 165 feet to the northeast (hole 935C: 62.7 oz/ton silver over 10.2 feet) and 165 feet to the southwest along the Footwall Vein (hole 936C: 44.6 oz/ton silver over 10.1 feet). The trend is now traceable over 800 feet and remains open toward both the Bermingham reserve and Hector-Calumet. Hole 936B returned 21.0 oz/ton silver over 5.8 feet, and hole 940 intersected a 2.5-foot interval bearing high-grade silver minerals (assays pending), generating multiple high-priority step-out targets in Bermingham Deep. The first vein at Midas returned 0.50 oz/ton gold and 3.1 oz/ton silver over 1.8 feet, including a higher-grade interval of 1.56 oz/ton gold and 9.7 oz/ton silver over 0.6 feet. Both veins remain open along strike, with follow-up drilling planned for the third quarter. The eight-hole Sinter Offset Southeast program defined a gold-bearing structure over 2,750 feet of strike length. Drilling will now pause as assays are received and an initial resource estimate is generated. Hole DMC-00485 returned 0.30 oz/ton gold and 4.0 oz/ton silver over 6.8 feet true width. All three planned metallurgical and geotechnical holes have been completed, with analytical testing in progress. Underground definition drilling programs at Greens Creek, Keno Hill, and Lucky Friday continue to define and expand mineralization near resource boundaries, converting Inferred resources and identifying reserve extension opportunities. Assay results have been received from the East, 200s, 5250, Gallagher and Upper Plate zones. Notable intercepts include 169.5 oz/ton silver, 0.55 oz/ton gold, 5.8% zinc, and 3.2% lead over 8.4 feet in the East Zone, and 20.8 oz/ton silver, 0.13 oz/ton gold, 4.8% zinc, and 2.6% lead over 39.8 feet in the Gallagher Zone. Several exceptional drilling intercepts were had in the 200s Zone, including 92.7 oz/ton silver, 0.03 oz/ton gold, 5.5% zinc, and 3.1% lead over 7.7 feet. At Keno Hill, one definition drilling rig continued to define and expand mineralization in the Arctic Zone at the Bermingham Mine. One intercept through the Footwall Vein returned 138.0 oz/ton silver, 0.6% zinc, and 1.5% lead over 3.1 feet, upgrading the resource. Another drillhole intersected 24.3 oz/ton silver, 0.1% zinc, 1.6% lead over 8.5 feet, 40 feet from current resources in the same vein. Drilling highlights include an intercept of 12.6 oz/ton silver, 11.4% zinc, and 11.4% lead over 10.5 feet in the 30 vein. The Sinter–Pogo Gap target area, situated between two previously identified high-grade zones, delivered Midas's newest vein discovery. Drilling intersected two new, narrow, well-developed veins with textures and mineralogy consistent with historic Midas production. The second vein is similar in texture, mineralogy, and thickness to the first and is pending assay results. Both new veins remain open along strike and are prioritized for third quarter follow-up. Elsewhere on the property, the completed eight-hole Sinter Offset Southeast program returned several gold-bearing structures with positive grades over narrow widths; drilling will now pause as assays are received and next steps are evaluated. Infill and metallurgical drilling also advanced, with hole DMC-00485 returning 0.30 oz/ton gold and 4.0 oz/ton silver over 6.8 feet true width, including three narrower intervals above 0.6 oz/ton gold. Assays are pending for two of the three completed metallurgical and geotechnical holes. Detailed exploration drill assay highlights can be found in Table A at the end of this release. At Greens Creek, exploration drilling at Zinc Creek, Gallagher, and 5250 Offset continued to refine the district geological model, with the intense alteration observed in Zinc Creek drilling flagged as a priority for third quarter follow-up. Hollister drilling commenced on schedule in July and will test four high-priority target areas. At Aurora, site preparation is underway ahead of drilling which is expected to begin in August. The Company's exploration programs continue to ramp up companywide, reflecting an expanding cadence of exploration activity heading into the second half of 2026. Planned third quarter activity includes follow-up drilling on the Midas Sinter–Pogo Gap veins, further testing of the Bermingham–Hector-Calumet trend, additional Bermingham Deep step-outs, and ramp-up of the newly initiated Hollister and Aurora programs. Overall, the planned programs remain well positioned to achieve stated goals of reaching a restart decision in Nevada and expanding resources and reserves at the mine sites. Assay Results – Second Quarter 2026: Keno Hill (Yukon): Bermingham Deep, Bermingham Footwall Vein, Bermingham Main Vein 2, Bermingham Main Vein 1, Bermingham Gap, Bear Vein, Bermingham Deep, Ruby Vein. Midas (Nevada): Sinter Offset Southeast, Sinter Resource, Sinter Offset Northwest, Pogo Sinter Gap. Greens Creek (Alaska): 5250, 200s, EAST, GAL, UPP. Lucky Friday (Idaho): Gold Hunter, 110 vein, Gold Hunter, 90 vein, Gold Hunter, 80 vein, Gold Hunter, 30 vein.