Quarterly Activities Report: December 2025

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The December Quarter was a prime example of what Altitude Minerals is all about. Not only did we get out on the ground and drill-test several potentially large-scale, high-value targets in the Macquarie Arc, but we also worked hard to keep our target pipeline replenished and set ourselves up for the year ahead. I’m personally very excited by new copper-gold targets emerging at the Theseus Project in the Macquarie Arc, as well as the potential for discovering silver and gold on our ground in Nevada.

Over the coming quarter, we aim to maintain this momentum. I look forward to receiving results from our recent drilling and testing new prospects, and, of course, sharing this news flow with you - our investors.
Duncan Chessell
Managing Director
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Acquired: Firenze Silver Gold Project Nevada, USA

  • Altitude Minerals (ASX: ATT) completed the acquisition of the Firenze Silver & Gold Project in Nevada, which allowed the ATT exploration team to commence detailed geophysical surveys and soil sampling across the project
  • The project is a rare opportunity to drill test previously unexplored bonanza-grade silver and gold veins in a high-quality jurisdiction

Drill-Tested: Macquarie Arc, NSW

  • Altitude drill-tested 8 high-priority Cu-Au porphyry drill targets identified at the Byrock Project in the Macquarie Arc, NSW – completing 2,228m of aircore, 278m of rotary mud and 140m of diamond core drilling; with assays pending
  • The drilling was partially funded by an $80,000 NSW Government drilling grant that was awarded under the Critical Minerals and High-Tech Metals Exploration Program
  • In 2026, the Company’s efforts in the Macquarie Arc will widen to validating drill targets at the Theseus Copper-Gold Project to the south after completion of the acquisition of three key tenements from Rimfire Pacific Mining (ASX: RIM) in late 2025

Results Received: Eromanga HMS Project, South Australia

  • Altitude Minerals completed 114 drillholes for 4,072m on the Nilpinna, Eddy and Douglas Creek tenements at the Eromanga Heavy Mineral Sands (HMS) Project in South Australia
  • On 15 December 2025, the Company reported that the first wide-spaced drill program at the project confirmed the Nilpinna Tenement’s heavy mineral sands prospectivity – with assays returning several grades >1% and a maximum of 12.5% Heavy Minerals
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