True North Copper Wynberg Project Reveals District-Scale Copper-Gold Potential

True North Copper Unlocks District-Scale Potential at Wynberg Gold Resource

True North Copper Limited (ASX: TNC) has delivered a compelling technical update on its True North Copper Wynberg Project, revealing significant copper-gold exploration potential that extends well beyond the existing 56.1koz gold resource. The announcement demonstrates how advanced geological interpretation and geophysical surveys have identified multiple high-priority targets across a broader mineralised system.

Furthermore, this positions the True North Copper Wynberg Project as a potential district-scale discovery within trucking distance of existing processing infrastructure. The systematic exploration approach provides compelling opportunities for investors seeking exposure to copper-gold growth in a proven mining district.

Established Resource Foundation Supports Discovery Growth

The True North Copper Wynberg Project already provides a solid foundation with its JORC 2012 Indicated and Inferred Mineral Resource of 0.64Mt @ 2.7g/t Au for 56.1koz Au on a granted mining lease. However, recent technical work suggests this represents merely the beginning of a much larger mineralised system.

Historic drilling has intersected significant copper-gold mineralisation outside the current resource model. For instance, notable intercepts include:

• 10m @ 6.7g/t Au & 0.36% Cu from 29m (0015RC)

• 12m @ 2.4g/t Au & 0.75% Cu from 39m (0036RC)

These intercepts support the interpretation of a broader mineralised system extending beyond the current resource footprint. Most historical drilling has been shallow, averaging approximately 55m depth, leaving significant potential for mineralisation extensions down-plunge and along strike.

Understanding Iron Sulphide Copper-Gold Systems

Iron Sulphide Copper-Gold (ISCG) systems represent a distinctive style of mineralisation common in the Cloncurry district. These systems are characterised by copper-gold mineralisation associated with iron sulphide minerals, typically controlled by structural features such as fracture zones and reactive rock boundaries.

Key Characteristics of ISCG Systems:

• Often occur as multiple-zone systems with potential for economic scale

• Can extend to significant depths (often greater than 600m)

• May host both gold-rich and copper-rich zones

• Have demonstrated economic viability in the region

At the True North Copper Wynberg Project, the geological characteristics including quartz-sodium feldspar veining, carbonate alteration, and iron sulphide-bearing broken rock zones are consistent with major ISCG deposits in the Cloncurry district. In addition, this suggests potential for a substantial mineralised system.

What Makes Regional ISCG Deposits Economically Viable?

Regional ISCG deposit examples demonstrate the economic potential of these systems. The Wallace North deposit shows 2.0Mt @ 1.28% Cu & 0.77g/t Au, whilst the larger Eloise system hosts 5.9Mt @ 2.5% Cu, 0.6g/t Au, 9.4g/t Ag. These examples highlight the multi-metal nature and substantial tonnages that characterise successful ISCG developments.

High-Priority Targets Emerge from Advanced Geophysics

The Burnt Ute Prospect, located 3km south of Wynberg, has emerged as a particularly compelling target following Fixed Loop Electromagnetic (FLEM) surveys. The prospect displays exceptional characteristics that warrant immediate attention.

The FLEM survey identified three distinct, east-west trending, sub-parallel conductive trends that remain open at depth. These conductors show direct correlation with surface copper-gold geochemistry and may represent iron sulphide-rich bodies characteristic of primary ISCG mineralisation.

Key Features of Burnt Ute Prospect:

• 1.7km east-west copper-gold geochemical trend

• Multiple conductive trends extending greater than 600m depth

• Rock chip values up to 25.0% Cu and 11.4g/t Au

• Maximum interpreted zone width of approximately 400m

Previous drilling at Burnt Ute has been limited, with results including 2m @ 0.76g/t Au and 0.34% Cu from 72m. However, this demonstrates oxide copper mineralisation that remains open at depth, providing significant exploration upside.

How Do Electromagnetic Surveys Support Target Generation?

The Fixed Loop Electromagnetic surveys provide critical subsurface imaging capabilities. Furthermore, they enable geologists to identify conductive bodies that may represent sulphide mineralisation at depth. The correlation between surface geochemical anomalies and deeper electromagnetic responses strengthens target confidence significantly.

Systematic Exploration Strategy Targets Resource Growth

True North Copper has outlined a systematic exploration programme designed to test the broader copper-gold potential across the Wynberg district. The approach balances immediate opportunities with longer-term district-scale evaluation.

Immediate Priorities:

1. Field Follow-up and Ground Truthing: Systematic rock-chip and soil sampling over priority anomalies to confirm mineralised controls and improve drill target positioning

2. Drill Testing Growth Targets: Focus on high-priority electromagnetic conductors at Burnt Ute and down-plunge/strike extensions at Wynberg

3. Downhole Electromagnetic Surveys: Further refine targets using downhole geophysics

4. Additional Geophysical Surveys: Extend coverage to Birdvale and Black Siltstone prospects

The exploration strategy leverages the established resource base whilst systematically testing the broader district-scale potential across multiple prospects. Moreover, this methodical approach reduces exploration risk whilst maximising discovery potential.

"This Wynberg update highlights the existing value within our portfolio and the discovery potential emerging from our Discover Regional Targets program. Our latest technical work is showing that the mineralised system extends beyond the current resource footprint," said Andrew Mooney, Managing Director and CEO.

Investment Thesis: District-Scale Discovery Potential

The True North Copper Wynberg Project represents a compelling investment opportunity within True North Copper's broader portfolio for several key reasons. The combination of established resources and exploration upside provides multiple value drivers.

What Establishes the Foundation Value?

The existing 56.1koz gold resource on granted mining lease provides immediate value. Historic drilling demonstrates mineralisation extends beyond current resource model boundaries. Additionally, shallow historic drilling (average 55m) leaves significant depth potential untested.

District-Scale Potential Indicators

Multiple prospects across 4km+ corridor (Wynberg, Burnt Ute, Birdvale, Black Siltstone) demonstrate system-scale mineralisation. ISCG geological characteristics comparable to major regional deposits support economic potential. High-priority geophysical targets extending greater than 600m depth provide substantial exploration upside.

Strategic Location Benefits:

• Within trucking distance of Cloncurry Copper Project and regional processing infrastructure

• Part of world-class Mt Isa mineral district

• Established infrastructure reduces development risk

Regional Context and Geological Comparison

The Wynberg system shares geological characteristics with several significant ISCG deposits in the region, supporting the interpretation of district-scale potential. The project occurs within intercalated and folded rock units assigned to the Toole Creek Volcanics.

These geological formations host other local gold and copper-gold deposits including Wallace South, Wallace North, and Wallace East. The coincidence of favourable host rock types, structural complexity, hydrothermal alteration, and broken rock zones supports economic potential.

Furthermore, the interpretation suggests that Wynberg has the potential to host a multi-zone sulphide copper-gold system of economic scale. This geological model provides the foundation for systematic exploration targeting.

Key Exploration Tracking Points

Resource Extension Drilling: Results from down-plunge and strike extension drilling at Wynberg will provide immediate value growth indicators.

Burnt Ute Electromagnetic Targets: Initial drill testing of high-priority conductors represents the most significant near-term catalyst.

District-Wide Integration: Progress on unified geological model across multiple prospects will demonstrate system-scale potential.

Infrastructure Synergies: Potential integration with Cloncurry Copper Project development provides operational leverage.

Next Steps and Development Pathway

True North Copper's approach to the True North Copper Wynberg Project demonstrates the company's ability to systematically create value from existing assets. The strategy builds a pipeline of growth opportunities whilst maintaining focus on established resources.

The combination of established resources, proven geological potential, and strategic location within a world-class mining district positions the company for significant value creation. The systematic exploration approach targeting ISCG-style mineralisation across multiple prospects provides compelling growth potential.

However, success depends on executing the systematic exploration programme effectively. With established infrastructure, proven geology, and multiple high-priority targets, the project update reinforces True North Copper's strategic positioning in the Cloncurry district.

The systematic exploration approach provides compelling opportunities for investors seeking exposure to copper-gold growth in a proven mining district. True North Copper has positioned itself strategically in the Cloncurry district, with the Wynberg Project offering both immediate resource value and district-scale discovery potential.

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