Summary
• Drilling has commenced to test the seven highest-ranked shallow “pipe-like”geophysical features analogous to North Parkes and Cadia Cu-Au porphyry deposits
• The Byrock Project is an untested company interpreted north-west segment of the Macquarie Arc, which is host to profitable Cu-Au porphyry mines to the south
• Drill targets are under a shallow cover of ~80m
• The 1,500m Aircore/RC drill program will take two (2) weeks to complete
• The company intends to announce assay results upon receip
These shallow drill targets are a low-cost, high-impact opportunity for Altitude, where the potential exists to define “pencil” Cu-Au porphyry deposits, which exhibit a pipe-like geometry, within a previously unrecognised and untested segment of the Macquarie Arc.
If this proof-of-concept drill program is successful, it has the potential to become a flagship project for the Company. Altitude also holds a significant 100% ground position adjacent to the Byrock Project with a similar geological setting and prospectivity.
This will be the 2nd drilling program in three months and is in line with Altitude’s pipeline strategy of unlocking shareholder value through testing for high-quality discoveriesManaging Director Duncan Chessell
MORE INVESTOR UPDATES

Drilling Commenced At Byrock Copper Gold Project, Macquarie Arc – NSW
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Drilling Permits Issued & Rig Contracted for Byrock Project
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Exploration Update: May 2026
An update on the exploration work and plans for Altitude’s projects

Compelling Drill Targets Defined at Byrock Project, NSW
Compelling RC drill targets have been confirmed at the Byrock Project to test for
Macquarie Arc pencil (pipe-like) porphyry deposits