Mr. Warwick Smith reports

AMERICAN PACIFIC FILES UPDATED TECHNICAL REPORT FOR ITS PALMER COPPER-ZINC VMS PROJECT IN SOUTHEAST ALASKA

American Pacific Mining Corp. has filed the updated National Instrument 43-101 technical report for the Palmer copper-zinc project, in southeastern Alaska, on SEDAR+. SRK Consulting (U.S.) Inc. was used as the third party consultant responsible for the updated mineral resource estimate (MRE) for the 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).

The technical report has been prepared for the updated MRE in accordance with National Instrument 43-101, and is available on the company's website and filed on SEDAR+.

Qualified person statement

Ben Parsons, principal consultant (resource geology) with SRK, prepared the updated MRE and independent NI 43-101 report for Constantine Metal Resources Ltd., a 100-per-cent-owned subsidiary of the company, according to CIM (Canadian Institute of Mining, Metallurgy and Petroleum) definition standards. Mr. Parsons is a qualified person as defined by NI 43-101. The NI 43-101 independent report includes detailed information on the key assumptions, parameters and methods used to estimate 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 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 volcanogenic massive sulphide-sulphate (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.