Mr. Dustin Henderson reports

BLACK MAMMOTH METALS FINDS IP AND MAGNETIC TARGET ZONE AT BIG BEAR COPPER PROPERTY, AZ

Black Mammoth Metals Corp. has released the results of a pole-dipole induced polarization survey with an inversion model and the results of a unmanned aerial vehicle magnetic survey at the company's 100-per-cent-owned Big Bear copper property. The company has also staked 29 additional unpatented lode claims managed by the U.S. Forest Service with the property covering approximately 367 hectares (909 acres). Big Bear is located at the northeastern flank of the Mazatzal Mountains, Gila county, Arizona.

IP and magnetic survey -- results

The IP results have delineated a target zone where the chargeability high and resistivity high are coincident with high-grade copper in rock chips and with an underlying magnetic high located along a northwestern-trending fault zone. The north-south IP lines (four) were spaced 150 metres apart and the magnetic survey's east-west flight lines were spaced 25 m to 50 m apart.

The company's outcrop chip samples collected in 2025 confirmed 74 m of vertical extent of a known historical copper oxide zone that consists of historical drilling, trenching and outcrop chip sampling (see the company's news release dated June 16, 2025). The newly delineated target zone overlaps and expands the historic copper zone.

IP and magnetic survey -- objectives

The objective of the IP and magnetic surveys was to further confirm and expand the historic copper zone and to locate underlying primary sulphide mineralization. Historical shallow drilling, with a maximum depth of 120 m, identified oxide copper and sulphide mineralization in drill holes down to the borehole bottoms.

Black Mammoth Metals feels that the recent workup at Big Bear, including the newly delineated target zone, suggests that a larger undiscovered copper system may exist on the property.

About Black Mammoth Metals Corp.

Since January, 2024, Black Mammoth Metals has acquired a 100-per-cent interest in:

• West Reveille silver property, Nye county, Nevada;
• Tom's Pediment gold-silver property, Lander county, Nevada;
• Mustang gold-silver property, Nye county, Nevada;
• Ramsey silver property, La Paz county, Arizona;
• Gallinas rare earth property, Lincoln county, New Mexico;
• Amador silver property, Lander county, Nevada;
• Big Bear copper property, Gila county, Arizona;
• Zulu gold property, Gila county, Arizona;
• Northern Star property, La Paz county, Arizona;
• Coal Canyon gold property, Pershing county, Nevada;
• Island Mountain gold district (including Coleman Canyon, St. Elmo and Diamond Jim (silver, lead, zinc and antimony)), Elko county, Nevada;
• Clover high-grade gold property, Elko county, Nevada;
• Leadore silver-lead-rare-earth-element property, Lemhi county, Idaho;
• East Reveille gold property, Nye county, Nevada;
• America mine gold property, San Bernardino, Calif.;
• Quito gold property, Lander county, Nevada;
• South Ravenswood gold district (including the Raven and Happy Cat properties) Lander county, Nevada (Happy Cat was purchased prior to January, 2024);
• Callaghan gold district (including North Callaghan, Charlie, Cottonwood and Rast properties), Lander county, Nevada.

Black Mammoth also has a 100-per-cent interest in the Blanco Creek gold property in the Elk Creek mining district, central Idaho, which hosts three historic underground mines along 3,550 metres (11,644 feet) of strike on the northeast-trending regional Blanco shear zone.

Mark J. Abrams, CPG No. 11451, a qualified person as defined under National Instrument 43-101 (Standards of Disclosure for Mineral Projects), director of Black Mammoth, has reviewed and approved the technical content in this release.

We seek Safe Harbor.