Mammoth Provides Update On Field Activities at its Tenoriba Gold-Silver Property, Mexico

Mammoth Resources Corp. (MTH) released an operational update regarding its 100%-owned Tenoriba gold-silver property in Chihuahua, Mexico. The company recently completed a field visit to review drill core from 55 prior diamond drill holes across the Carneritos, Masuparia, and Moreno areas.

A 200 kg metallurgical test sample was collected from potential draw point areas within the Carneritos zone. Field panning revealed visible gold flecks in the sample. The material has been transported to the Universidad de Sonora for advanced production-size vat and column leach tests. These tests will evaluate gold-silver recovery rates using both cyanide and more ecologically friendly reagents to support a decision on small-scale production.

Infrastructure assessments noted that access roads are in decent condition but require rehabilitation. An alternative all-weather route is being evaluated. Additionally, community meetings were held to discuss renewing surface access agreements.

Mammoth Resources Corp. (MTH) issued a follow-up to its August 27, 2026 announcement regarding the commencement of field activities, confirming the successful collection of a metallurgical sample and outlining the next step in its testing program. The update is incremental and aligns with previously communicated exploration plans, with no new mineral resource, financing, or strategic partnership announced. The news does not alter the company's immediate liquidity position or near-term capital requirements.

Mammoth Resources Corp. is a junior exploration company focused on the Tenoriba gold-silver property in the Sierra Madre precious metal belt, Chihuahua, Mexico. The property covers 5,333 hectares and features a high sulphidation geological system with gold, silver, and incidental copper mineralization.

The project is in the advanced exploration stage. No NI 43-101 mineral resource or reserve has been defined. An exploration target of ~1.8 million gold equivalent ounces (AuEq) has been calculated across oxide-mixed and sulfide horizons. The company is targeting shallow oxidized zones amenable to low-cost open pit mining and heap leach processing.