Altitude Minerals Advances Copper-Gold Exploration at Byrock Project

Altitude Minerals copper-gold exploration has reached a pivotal milestone with the company advancing to Stage One of its earn-in agreement at the Byrock Project in New South Wales. This decision follows encouraging air-core drilling results that have validated the geological model and confirmed the area's prospectivity to host copper-gold porphyry deposits.

The company will now issue $200,000 worth of ATT shares to Nimrod and has two years to spend an additional $1.35 million to earn a 51% interest in the project. This represents a strong vote of confidence in the Byrock Project's potential within the highly prospective Macquarie Arc.

Drilling Results Validate Porphyry Target Model

Key Geochemical Discoveries

The recent air-core drilling program intersected several encouraging indicators of a copper-gold porphyry system:

Pathfinder Elements Detected:

• Antimony (Sb), Arsenic (As), Bismuth (Bi), Tellurium (Te), Selenium (Se), Tin (Sn), Tungsten (W), and Molybdenum (Mo)
• These elements are consistent with the vertical distribution expected above a Cu-Au porphyry system

Gold Intersections:

• 0.15 g/t Au intersected at three priority targets: P38, P37, and P01
• Gold spatially associated with quartz veins across multiple drill holes

Alteration Signatures:

• Thick intervals (>50m) of pervasive propylitic alteration in four targets
• Propylitic alteration positioned beneath haematite alteration zones
• FTIR analysis confirmed potassic alteration (k-feldspar and biotite) consistent with porphyry systems

Priority Targets for Follow-Up

Based on these positive results, three of seven pipe targets now warrant deeper reverse circulation (RC) drilling:

Understanding Porphyry Pathfinder Elements

What Are Pathfinder Elements?

Pathfinder elements are trace metals that form a geochemical "halo" around porphyry copper-gold deposits. As these systems form deep underground, certain elements migrate upward and outward from the main mineralised zone, creating detectable patterns in surface and near-surface rocks.

Why They Matter to Investors

Dr Scott Halley's widely-respected model for Eastern Australian porphyry deposits shows that detecting the right combination of pathfinder elements can indicate proximity to a significant copper-gold system at depth. The presence of multiple pathfinder elements at Byrock, particularly their increasing concentrations downhole, suggests a causative intrusion may exist below the current drilling depth.

This is particularly significant because the absence of copper in the shallow air-core results is actually expected. Furthermore, copper is highly mobile during weathering and disperses widely, while pathfinder elements like bismuth remain more concentrated near the source.

Strategic Position in World-Class Mining District

The Macquarie Arc Opportunity

The Byrock Project sits within Altitude's interpreted northwest extension of the Macquarie Arc, Australia's premier porphyry copper-gold province. This region hosts several world-class operations and demonstrates why copper investments continue to attract institutional interest.

Regional Mining Assets:

• Cadia Valley deposits: 32 million ounces of gold, 7.5 million tonnes of copper
• Northparkes mine (Evolution Mining)
• Cowal mine (Evolution Mining)

Recent Industry Investment:

• AngloGold Ashanti: $195 million exploration commitment with Kincora Copper and Inflection Resources
• Waratah Minerals: Recent high-grade discoveries at the Spur Project using similar targeting methods

Competitive Positioning

Altitude's targeting approach mirrors successful strategies employed by Waratah Minerals, focusing on the margins of fertile intrusions rather than within major intrusive complexes. This methodology has proven effective in discovering higher-grade deposits in the East Lachlan region.

Earn-In Agreement Structure Provides Multiple Value Creation Opportunities

Staged Investment Approach

The earn-in agreement structure allows Altitude to systematically invest based on results. In addition, this approach provides flexibility for strategic decision-making as exploration progresses:

Risk Mitigation Features

• Minimum drilling requirements: 2,000m per stage ensures systematic exploration
• Acceleration options: Can advance to any milestone by meeting expenditure early
• Exit flexibility: 30-day notice period allows strategic repositioning
• NSR conversion: If equity falls below 10%, converts to 2% net smelter royalty

Management Commentary Signals Confidence

Managing Director Duncan Chessell's comments emphasise the significance of these early results in Altitude Minerals copper-gold exploration:

"The size of the prize in the Macquarie Arc is finding the next cluster of world-class porphyries like the pencil porphyry deposits, such as E26 and associated North Parkes deposits. The presence of economic Cu-Au porphyry mineral systems in the Company interpreted NW extension of the Macquarie Arc if confirmed with deeper drilling, would be very significant for Altitude and NSW."

This statement highlights both the regional opportunity and the transformational potential for Altitude if the geological model is proven correct through deeper drilling.

Next Steps and Value Catalysts

Immediate Priorities

Q1 2026 Activities:

• Deeper RC drilling on three priority pipe targets (P38, P01, P37)
• Results expected from T55 Target drilling (mid-late February)
• Continued geological interpretation and target refinement

Upcoming Milestones

2026 Exploration Programme:

• Systematic expansion of successful drilling approach
• Integration of 2025 geophysical data (airborne magnetics, gravity, IP surveys)
• Potential discovery of additional pipe targets under cover

Why Should Investors Follow Altitude Minerals?

Unique Value Proposition

Altitude has positioned itself advantageously in several key areas that make the company's copper-gold exploration particularly compelling:

Strategic Asset Portfolio:

• Multiple projects across established mining districts
• Focus on large-scale drill targets in proven geological settings
• Systematic approach to target identification and testing

Operational Excellence:

• Proven ability to identify and test high-quality targets efficiently
• Strong technical partnerships (Nimrod Resources brings 10+ years regional expertise)
• Cost-effective exploration methodology

Financial Discipline:

• Staged investment approach minimises risk while preserving upside
• Multiple pathways to value creation across project portfolio
• Experienced management team with track record in discovery

Industry Context

The Macquarie Arc continues to attract major investment from global mining companies, validating the region's world-class potential. However, Altitude's early-mover advantage in the interpreted northwest extension provides significant leverage to this industry interest.

For instance, the company's methodical approach to exploration contrasts with speculative ventures that lack systematic geological understanding. This disciplined methodology increases the probability of success while managing capital efficiently.

What Makes This Exploration Campaign Different?

The Altitude Minerals copper-gold exploration programme stands out due to its foundation in proven geological models. Consequently, the company has been able to generate encouraging results within the first year of systematic exploration.

The pathfinder element signatures detected across multiple targets suggest a coherent mineralising system rather than isolated anomalies. This increases confidence that deeper drilling will intersect the target porphyry intrusion.

Furthermore, the strategic location within the broader Macquarie Arc provides additional validation. The region's track record of hosting world-class deposits de-risks the geological concept while offering exceptional upside potential.

Investment Tracking Points

Altitude Minerals has established itself as a focused explorer with systematic approach to discovery in proven geological settings. With encouraging initial results at Byrock validating the porphyry model, upcoming deeper drilling represents a significant value catalyst.

The company's position in the Macquarie Arc extension, combined with disciplined capital deployment through the earn-in structure, provides investors with leveraged exposure to potential discovery success. The combination of positive proof-of-concept results, strategic location within a world-class mining district, and disciplined exploration approach makes the Altitude Minerals copper-gold exploration story compelling for investors seeking exposure to Australian discovery potential.

Ready to Discover Altitude's Exploration Potential?

With Altitude Minerals advancing to Stage One of its Byrock Project earn-in agreement and positive pathfinder elements validating the porphyry model, the company is well-positioned for potential discovery success in the Macquarie Arc extension. The upcoming deeper drilling programme on three priority targets represents a significant value catalyst that could transform the investment landscape. To access comprehensive investor resources, financial reports, and stay updated on drilling progress and exploration milestones, visit Altitude Minerals' investor centre and position yourself ahead of potential discovery announcements.