Excelsior gets first permit for a copper mine in Arizona in over a decade

Cochise County, Arizona — Excelsior Mining Corp. announced that the United States Environmental Protection Agency (“EPA”) has issued an operating permit, the Class III Underground Injection Control (“UIC”) Area Permit, for the Gunnison Copper Project, located in Cochise County between Benson and Willcox in southeastern Arizona. Excelsior Mining “The Copper Solution Company” is a mineral […]

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