Maxus Mining begins survey at Alturas

Executive Summary

• Maxus Mining Inc. has commenced a high-resolution airborne geophysical survey (VTEM) at its flagship Alturas antimony project in British Columbia, engaging Geotech Ltd. to conduct the work.
• The survey is a critical first step to advance the Alturas West property toward drill targeting, with data expected to refine priority exploration targets ahead of the planned 2026 field season.
• The program covers both Alturas West (approx. 149 line km) and Alturas East (approx. 177 line km), aiming to identify geophysical signatures associated with shear-, sediment-, and/or intrusion-hosted mineral systems.

Key Details

• Survey Scope: The airborne geophysical survey includes approximately 149 line kilometres at Alturas West (spaced at 100 metres) and approximately 177 line kilometres at Alturas East (spaced at 100 metres).
• Technology: The company engaged Geotech Ltd. to carry out a versatile time-domain electromagnetic (VTEM) survey.
• Technical Objectives: The program is designed to map contrasts in bedrock resistivity and magnetic response to identify geophysical signatures associated with shear-, sediment-, and/or intrusion-hosted mineral systems.
• Depth Penetration: The survey has an effective depth penetration of approximately 300 to 500 metres.
• Timeline: Survey operations have commenced subject to weather conditions, with all planned programs expected to be completed prior to spring 2026. Daily data deliveries are being received.
• Quality Control: Convolutions Geoscience Corp. (led by Kyle Patterson, PGeo) is providing quality assurance/quality control oversight and will support strategic interpretation and targeting.
• Portfolio Context: The survey is part of a broader regional initiative extending to the Quarry, Hurley, and Lotto properties.
  • Alturas: Recent discovery returned high-grade naturally occurring antimony up to 69.98%.
  • Hurley: 2024 drilling reported 19.2% antimony and 2.16 g/t gold over 0.5 metres.
  • Quarry: Historical polymetallic samples grading 0.89 g/t gold, 3.8% copper, 0.34% zinc, 42.5% lead, 0.65 g/t silver, and 20% antimony.
  • Lotto: 1980 grab sample from a scheelite-bearing quartz vein assayed 10.97% WO3.
  • Penny: Recent sampling returned copper values up to 2,388 ppm Cu.
• Qualified Person: The technical information was reviewed and approved by Morgan Verge, PGeo, Vice-President, Exploration.

Notable Quotes

• "The commencement of this VTEM survey marks an important inflection point for Maxus across our project portfolio. This program is designed to rapidly improve our understanding of the subsurface architecture and structural controls that underpin antimony mineralization across Alturas. With high-quality geophysical data in hand ahead of the 2026 field season, we will be well positioned to refine priority drill targets and advance Alturas West in a disciplined, technically driven manner." — Scott Walters, Chief Executive Officer