Mr. Warwick Smith reports

AMERICAN PACIFIC MOBILIZES DRILLS IN PREPARATION FOR 15,000-METRE DRILL PROGRAM AT MADISON COPPER-GOLD PROJECT IN MONTANA

American Pacific Mining Corp.'s first of two drills has arrived on site in advance of a 15,000-metre drill program, which include both reverse circulation (RC) and diamond core drilling at its Madison copper-gold project in Montana. The second drill is expected to arrive in the coming weeks.

The 15,000-metre program will focus on both near-surface skarn targets and deeper porphyry targets for 10,000 metres and 5,000 metres, respectively. Targets include five of the highest-priority skarn and porphyry targets that represent the most informed drill targets ever defined at the project, and are the result of extensive technical work and data analysis.

The diamond drilling will focus on deeper porphyry targets, while RC drilling will be used primarily for rapid, cost-effective testing of near-surface skarn targets. Please see the company news issued on May 4, 2026, for additional details.

"We are excited to be systematically testing the most compelling skarn and porphyry targets we have ever defined on the project," commented chief executive officer and director Warwick Smith. "These targets are the culmination of extensive data compilation, careful interpretation of both historical and recent work, and detailed 3-D modelling. Our team is eager to see how results from the program validate and refine our geological understanding of Madison."

Drilling at Madison is expected to commence in the coming days with initial assay results anticipated this summer. The company will provide further updates as drilling progresses.

Qualified person statement

Technical aspects of this press release have been reviewed and approved by the designated qualified person under National Instrument 43-101, Eric Saderholm, PGeo, managing director of exploration for the company.

About American Pacific Mining Corp.

American Pacific Mining is a precious and base metals explorer and developer focused on opportunities in the Western United States. The company's flagship asset is the 100-per-cent-owned past-producing Madison 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. Through a 2025 transaction with Vizsla Copper, American Pacific has established a major equity position with milestone upside exposure to the advanced exploration-stage Palmer copper-zinc VMS (volcanogenic massive sulphide) project in Alaska. American Pacific also holds a significant equity position in ICG Silver & Gold through a spinout of the Tuscarora district project in Nevada. Several additional high-grade, precious metals projects located in key mining districts in Nevada remain in the asset portfolio. The company's mission is to provide shareholders with discovery and exploration upside exposure across its portfolio through partnerships, spinouts and direct exploration.

American Pacific is incorporated pursuant to the laws of British Columbia and its head office is located at Suite 910, 510 Burrard St., Vancouver, B.C., V6C 3A8.

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