Gunnison Copper Corp.

Excelsior Mining Corp. is pleased to announce the results of its Updated Preliminary Economic Assessment on the Johnson Camp Mine Heap Leach, located in Cochise County, southeastern Arizona. The PEA considers the results of the drill program completed in 2022 and the implementation of sulfide leaching technology to improve recoveries. As part of [...]

Excelsior Mining Corp. is pleased to announce that today it has closed its US$3 million private placement of unsecured convertible debentures . Pursuant to the Debenture Offering, investors subscribed for a total of US$3 million principal amount of convertible debentures . The terms of the Debentures include: a maturity date of three years from the [...]

This document corrects and replaces in its entirety the previous release that was issued by Excelsior Mining Corp. earlier today. Excelsior Mining Corp. is pleased to announce that it and its wholly-owned subsidiary Excelsior Mining Arizona, Inc. has agreed with Nebari Natural Resources Credit Fund I LP to extend the maturity date of its existing [...]

Excelsior Mining Corp. is pleased to announce that it and its wholly-owned subsidiary Excelsior Mining Arizona, Inc. has agreed with Nebari Natural Resources Credit Fund I LP to extend the maturity date of its existing US$15 million credit facility to March 31, 2025. In addition, the Company has entered into agreements for a US$3 million private [...]

Excelsior Mining Corp. is pleased to announce that it has received approval from Arizona Department of Environmental Quality for a new leach pad at its Johnson Camp Mine facility. The Aquifer Protection Permit for Johnson Camp has been amended to include the construction and operation of a heap leach pad to produce copper from the legacy open pits [...]

Excelsior Mining Corp. is pleased to announce that it has entered into a Collaboration Agreement with Nuton LLC, a Rio Tinto venture, to evaluate the use of its Nuton™ copper heap leaching technologies at Excelsior's Johnson Camp mine in Cochise County, Arizona. Rio Tinto has developed the Nuton technologies, an extensive portfolio of [...]

Excelsior Mining Corp. is saddened to announce the passing of Board member Mr. Jim Kolbe. Mr. Kolbe had been a director of the Company for over 10 years and he provided valuable guidance and insight during his tenure. Prior to joining the Company, Mr. Kolbe was an 11 term congressman from Arizona. "Jim Kolbe was an outstanding Congressman, public [...]

Excelsior Mining Corp. is pleased to announce the results of Well Stimulation modelling for the Gunnison Copper Project, located in Cochise County, southeastern Arizona. Well stimulation has the potential to fundamentally change the performance of the wellfield, reduce the need for raffinate neutralization or change the design criteria for the [...]

Excelsior Mining Corp. is pleased to announce the final assay results from the infill drill program on the Johnson Camp mine pits located in Cochise County, southeastern Arizona. Drill Program Due to successful drilling in the NE corner of Burro pit, additional holes were added and those with assays returned are reported below. The improved results [...]

Excelsior Mining Corp. announces that the British Columbia Supreme Court, in MM Fund v. Excelsior Mining Corp. 2022 BCSC 1541, a purported class action brought by MM Fund, has granted the application by Excelsior to strike MM Fund's certification application and further ordered MM Fund to remove all pleadings relating to advancing a class [...]