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Hecla Mining Company

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Summary

Project:

Greens Creek

Deposit:Greens Creek
Location:United States
Commodities:Silver-Gold-Lead-Zinc
Date:2/12/2018
Report Code:NI43-101
Report Type:Exploration/Drilling Update
Project Stage:Active Mining & Production
Report details:12-2-2018: Hecla Mining Company announces an Exploration/Drilling Update report for its Greens Creek deposit at the Greens Creek project. Drilling results incl. 19.8ft @ 32.3oz/t Ag, 0.18oz/t Au, 9.0% Zn, 4.8% Pb from 242ft. COEUR D’ALENE, IDAHO -- Hecla
Resources:(not mentioned in this report)
CP/QP:[Overall Report]: Dean McDonald (Internal)
ABSTRACT:COEUR D’ALENE, IDAHO -- Hecla Mining Company (NYSE:HL) today provided an update on its exploration programs during the fourth quarter. “Our strategy of investing in exploration continues to add value, with considerable exploration success this year, including the record silver, gold and lead reserves announced last week,” said Phillips S. Baker, Jr., President and CEO. “This past quarter was no different than the full year. We continue to expand the polymetallic mineralization at San Sebastian, so much so that we expect to take a bulk sample this year. At Casa Berardi, our exploration continues to confirm the high expectations we had when we acquired it, with expansions of planned pits and discovery of new open pitable material as well as new high-grade lenses underground. Finally, drilling at Greens Creek discovered high-grade mineralization in the central part of the mine that could enhance Greens Creek’s already exceptional mine economics and mine life.” discovered Hugh Zone on the Francine Vein. The 97 Zone extends 1,000 feet along strike and 750 feet down-dip and is open to the east and at depth. This mineralization is located about 100 to 300 feet below the new Middle Vein underground mine ramp and a development drift has begun that will facilitate the collection of a bulk sample of the polymetallic mineralization this year. Recent assay results from step-out drilling include 10.2 oz/ton silver, 3% copper, 10% lead, and 18% zinc over 4.4 feet and 12.0 oz/ton silver, 4% copper, 6% lead, and 9% zinc over 5.4 feet. Drilling is planned to the east and at 1,000 feet of depth to evaluate the potential of polymetallic mineralization to extend below the 3,000 feet of strike length of the oxide reserves.

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