Mr. Dustin Henderson reports

BLACK MAMMOTH METALS IDENTIFIES DRILL TARGETS AND STAKES CLAIMS AT COLEMAN CANYON, NV

Black Mammoth Metals Corp. has released the results from an unmanned aerial vehicle magnetic survey at the Coleman Canyon property located in Elko county, Nevada, along with the related staking of 103 federal unpatented lode claims for a property total of 192 contiguous unpatented lode claims managed by the U.S. Forest Service. Together with the patented claims, Coleman Canyon now covers a total of approximately 1,554 hectares (3,842 acres). The company has a 100-per-cent ownership in the unpatented claims subject to a 1-per-cent net smelter royalty.

The magnetic survey area covers the entire property including the newly staked ground at 50-metre flight line spacing and at 50 metres above ground level. The magnetic survey's objective was to identify any extensions of the known gold and silver mineralized areas that have not yet been drilled or not drilled deep enough to test those possible extensions.

UAV magnetic survey results

The following interpreted structural features of the magnetic survey are believed to be pathways for mineralizing fluids based on past drilling and modelling:

• Large structural features are indicated along the northern side of the intrusive and are interpreted to be northeast-trending faults that cut across much of the intrusive and adjacent sedimentary units.
• There is a large magnetic-high anomaly to the west of the intrusive interpreted to be an offshoot of the intrusive and appears to be structurally controlled by a north-trending fault or fracture zone.

The magnetic survey shows strong magnetic-high anomalies along the southern side of the intrusive that coincide with known gold mineralization from past drilling. The extension of a magnetic-high response to the south, north and west suggests influence by the intrusion and its related fluids farther out from the known proximal mineralization. These areas have not been drilled in most locations deep enough to test if the dipping rock units are mineralized. The magnetic-high anomalies toward the far west and northwestern sides of the mag survey have not been drilled.

At Coleman Canyon, the majority of the known gold and silver mineralization is hosted by sedimentary and metasedimentary rocks surrounding a central intrusive stock. Mineralization in the sedimentary units is restricted to calcareous beds of the Hammond Canyon formation and parts of the overlying Poorman Creek formation, in keeping with a proximal Carlin deposit model. These units have been pushed up during emplacement of the intrusive so that the units dip away from the intrusive on all sides, flattening with distance from the intrusive. Mineralization appears to be controlled by bedding and partly by structural features, including faults and fracturing interpreted to have provided pathways for mineralizing fluids. There is also vein mineralization in the intrusive stock.

The magnetic survey has helped clarify the possibility of extensions to areas of known gold and silver mineralization that will require drilling to verify any mineralization. The company may conduct other work-up activities prior to drilling which may include further geological, geochemical and geophysical work.

Clarification to the company's news release dated Aug. 26, 2025

There was no finder's fee paid in connection with the lease with option to purchase, but there was a $12,000 finder's fee paid to a private vendor in connection with the new claims staked.

About Black Mammoth Metals Corp.

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

• 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, 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.