Mr. Stephen Twyerould reports

EXCELSIOR MINING'S JOHNSON CAMP MINE RECEIVES AMENDED STATE PERMIT

The Arizona Department of Environmental Quality (ADEQ) has issued an amended aquifer protection permit for Excelsior Mining Corp.'s Johnson Camp mine. On Dec. 22, 2016, Excelsior filed an application to significantly amend its Johnson Camp aquifer protection permit to allow for the processing of fluids from future well field operations; the permit is effective as of June 26, 2017.

Excelsior is currently working with the ADEQ toward the issuance of an aquifer protection permit for the well field component of the Gunnison copper project. This is the primary operating permit to be issued by the State of Arizona (see previous news release dated June 14, 2017). In parallel, Excelsior is working with the Environmental Protection Agency (EPA) for the issuance of an underground injection control permit. Excelsior anticipates having all state and federal operating permits in place by late Q3 2017.

About Excelsior Mining Corp.

Excelsior is a mineral exploration and development company that is advancing the Gunnison copper project in Cochise county, Arizona. The project is an advanced-stage, low-cost, environmentally friendly in situ recovery copper extraction project that is scheduled for commercial production in 2018.

Excelsior's technical work on the Gunnison copper project is supervised by Stephen Twyerould, fellow of the Australasian Institute of Mining and Metallurgy, president and chief executive officer of Excelsior, and a qualified person as defined by National Instrument 43-101. Mr. Twyerould has reviewed and approved the technical information contained in this news release.

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