Mr. Dustin Henderson reports

BLACK MAMMOTH METALS OUTLINES EXTENSIVE GRAVITY ANOMALY AT MUSTANG GOLD-SILVER PROPERTY, NV

Black Mammoth Metals Corp. has released the results of a ground gravity survey at the company's 100-per-cent-owned Mustang gold-silver property. The property extends over 8.4 kilometres (km) north-south along the Pactolus Hills on the Walker Lane trend, Nye county, Nevada.

The objective of the gravity survey was to investigate the potential for gold-silver mineralization in uplifted Paleozoic basement rocks on the property. The company's recent induced polarization (IP) survey in the property's southern zone identified coherent chargeability and resistivity anomalies that overlap with gold and silver anomalies in historical rock and soil samples and historical drill holes (see the company's news release dated Dec. 18, 2025).

Gravity survey results

The gravity survey has outlined a prominent north-south-trending gravity high (horst structure) coincident with the overlapping and coherent chargeability and resistivity anomalies that may represent favourable structural preparation for hydrothermal fluids and subsequent gold and silver mineralization. Historical drilling has been shallow and has focused on alteration within the upper volcanic sequences, while the potential underlying Paleozoic carbonates host lithologies (Luning formation limestones) have been overlooked and remain untested.

The company has initiated the Bureau of Land Management (BLM) notice process to permit approximately nine drill sites and intends to drill test the most promising chargeability and resistivity anomalies that are within or near the gravity-high area, as well as to verify and offset the best historical drilling results.

The gravity survey's stations were spaced using a 150-metre (m) grid located in the south of the property.

About Black Mammoth Metals Corp.

Since January, 2024, Black Mammoth Metals has acquired a 100-per-cent interest in 25 core properties:

• Cupz gold property, Esmeralda county, Nevada;
• 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 (Ag (silver), Pb (lead), Zn (zinc), Sb (antimony)), Elko county, Nevada;
• Clover high-grade gold property, Elko county, Nevada;
• Leadore silver-lead-REE (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 the 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, and director of Black Mammoth, has reviewed and approved the technical content in this news release.

We seek Safe Harbor.