Mr. Warwick Smith reports

AMERICAN PACIFIC REPORTS SIGNIFICANT INCREASE IN CONTAINED COPPER WITH UPDATED MINERAL RESOURCE ESTIMATE FOR ITS PALMER COPPER-ZINC VMS PROJECT IN SOUTHEAST ALASKA

American Pacific Mining Corp. has released an updated mineral resource estimate (MRE) for the 100-per-cent-owned Palmer VMS (volcanic massive sulphide) project, located in southeasterb Alaska. The company commissioned SRK Consulting (U.S.) Inc. to assess and update the MRE for the Palmer project.

2025 MRE highlights:

• Indicated: 4.77 million tonnes at 1.69 per cent copper, 5.17 per cent zinc, 0.14 per cent lead, 28.4 grams per tonne (g/t) silver, 0.29 g/t gold and 20.6 per cent barite (3.5 per cent copper equivalent or 13.2 per cent zinc equivalent):
  • 16-per-cent increase in contained copper (24 million pounds) and 14-per-cent increase in copper grade;
  • 178.0 million pounds of copper, 543.0 million pounds of zinc, 14.2 million pounds of lead, 4.4 million ounces of silver, 43,900 ounces of gold and 980,400 tonnes of barite (BaSO4);
• Inferred: 12.00 million tonnes at 0.57 per cent copper, 3.92 per cent zinc, 0.47 per cent lead, 66.3 g/t silver, 0.33 g/t gold and 25.5 per cent barite (3.1 per cent copper equivalent or 8.9 per cent zinc equivalent):
  • 22-per-cent increase in contained copper (28 million pounds);
  • 151.5 million pounds of copper, 1,036.4 million pounds of zinc, 125.2 million pounds of lead, 25.6 million ounces of silver, 128,100 ounces of gold and 3,054,200 tonnes of barite (BaSO4).

"This updated mineral resource estimate marks a major project milestone now that American Pacific has secured 100-per-cent ownership of the Palmer VMS project. Infill and geotechnical drilling over the last several years has been successful in increasing our confidence in the known deposits and we are thrilled to see significant increases in the in situ copper estimate, in addition to an overall increase in contained tonnes for the project," stated chief executive officer Warwick Smith

Palmer project updated MRE summary details

SRK used available drilling information from exploration programs with assays from 2006 through to 2024 in this significant update to the consolidated MRE since June 3, 2019. The new effective date of the MRE for the Palmer project is Jan. 13, 2025.

The updated MRE is based on the project database provided to SRK containing 284 diamond drill holes for a total of 96,485 metres of drilling with 16,717 samples. The database contains 241 diamond drill holes (82,132 metres) within the mineralized boundaries prepared for the MRE.

The mineralization for the estimate was defined in three main domains, including the South Wall (SW) and RW domains (Palmer deposit) and the AG domains (AG deposit). These domains were developed using the findings from data quality, drill hole spacing, the interpreted geological continuity, interpreted structural and continuity of grades within the mineralized lenses. SRK has classified portions of the project into the indicated and inferred mineral resources categories based on a review of the variograms, statistical support to the confidence of the estimates.

SRK's scope was limited to updating the Palmer project mineral resource estimate and providing a National Instrument 43-101 technical report. No additional work was completed by SRK on the other prospects, including the CAP, HG, MHC, Boundary or Christmas Creek prospects. There remains significant discovery potential on the Palmer property, including further expansion of the known mineralized prospects.

A technical report is being prepared for the updated MRE in accordance with National Instrument 43-101 and will be available on the company's website and filed on SEDAR+ within 45 days of the date of this news release.

Qualified person statement

Ben Parsons, principal consultant (resource geology) with SRK, prepared the updated MRE for Constantine Mining LLC, a 100-per-cent-owned subsidiary of the company, according to CIM definition standards and will be supported by an NI 43-101 independent report, which will be published and filed on the company's website and SEDAR+ profile within 45 days. Mr. Parsons is a qualified person as defined by NI 43-101. The NI 43-101 independent report will include detailed information on the key assumptions, parameters and methods used to estimate the mineral resources.

The technical information in this news release regarding the Palmer project has been reviewed and approved by Michael Vande Guchte, PGeo, vice-president of exploration for the Palmer project and a qualified person (QP) as defined by NI 43-101, Standards of Disclosure for Mineral Projects.

About American Pacific Mining Corp.

American Pacific is a precious and base metals explorer and developer focused on opportunities in the Western United States. The company has two flagship assets: the Palmer project, a VMS project in Alaska; and the Madison project, a past-producing copper-gold project in Montana. For the Madison transaction, American Pacific was selected as a finalist in both 2021 and 2022 for Deal of the Year at the S&;P Global Platts Metals Awards, an annual program that recognizes exemplary accomplishments in 16 performance categories.

Also in American Pacific's asset portfolio are high-grade, precious metals projects located in key mining districts in Nevada, including the Ziggurat gold project and the Tuscarora gold-silver district. The company's mission is to grow by the drill bit, strategic partnerships, and mergers and acquisitions.