American Pacific Mining Identifies Large MT Anomaly at Madison Project

Vancouver, British Columbia – June 3, 2026 – American Pacific Mining Corp. has begun drill testing a new priority target at its Madison Copper-Gold Project in Montana, based on a recently identified magnetotelluric (MT) inversion survey.

The large-scale, highly conductive geophysical anomaly is located in an area of the project that has never been drill-tested. It measures approximately 2 kilometers by 600 meters and is planned to be drilled to a depth of approximately 800 meters.

"The latest inversion data from the MT survey conducted in March are incredibly detailed and surpass all previous geophysical techniques used," stated Eric Saderholm, Director of Exploration. "The anomaly's quality has allowed us to refine drill targeting to more accurately test this impressive conductive feature. Core drilling to test the porphyry is now underway. A second RC drill rig will arrive within two weeks and focus on shallower skarn targets."

The survey identified two prominent conductive features, with the primary being a north-northwest to south-southeast trending conductor. This feature appears to mirror the district's structural architecture and is associated with major fault corridors believed to have played a key role in controlling mineralizing fluids. The company cautions that geophysical anomalies are not direct evidence of mineralization. However, the size, shape, conductivity, and structural setting of the Madison anomaly make it a high-priority drill target for the 2026 campaign.

The Madison Project, historically a producer of a copper-gold skarn system, has seen exploration around known deposits. The new MT anomaly lies outside historically drilled areas and offers a fresh opportunity to evaluate a new part of the system. This year's program includes drilling this new target, as well as continued evaluation of known skarn mineralization and deeper, intrusive-related targets.