Hecla Mining announces U.S. Forest Service advancement of Libby Project

Hecla Mining (HL) Company announced that the U.S. Forest Service has issued the final decision notice and finding of no significant impact for the company’s 100% owned copper-silver Libby Exploration Project in Lincoln County, Montana. This significant milestone advances the exploration phase of a world-class copper and silver deposit located southwest of Libby, Montana. The Libby Project represents an important step in unlocking the potential of high-grade copper and silver production in northwest Montana. As of December 31, 2024, the Libby Project currently has an Inferred Resource of 112.2 million tons grading 0.7% copper and 1.6 ounces per ton silver, for contained metal of over 1.5 billion pounds of copper and 183 million ounces of silver. Mineralization remains open down dip and to the north, offering potential for further resource expansion. The Rock Lake fault (the fault) is thought to limit mineralization extension to the west, however, the dip of the fault was previously interpreted to be dipping east, whereas new interpretations indicate it may be dipping to the west which would offer the potential to extend mineralization in that direction as well.