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True North Copper Limited (ASX:TNC) has released assay outcomes from the initial three diamond drillholes of its 2026 exploration campaign at the Aquila Copper-Cobalt-Silver Discovery within Queensland's Mt Oxide Project. These results confirm the company's geological model and demonstrate continuity of a broad mineralised system featuring well-defined higher-grade zones spanning roughly 1.8 kilometres of interpreted strike. The drilling enhances confidence in the scale and development potential of the Aquila discovery and highlights further exploration opportunities across Mt Oxide.
Key Points
- True North Copper Limited (ASX:TNC) is an Australian copper company managing 100%-owned assets in the Mt Isa region of Northwest Queensland.
- Diamond drilling at Aquila confirms extensive copper-cobalt-silver mineralisation with multiple high-grade intercepts, supporting the geological model.
- MOXDD26_001 intersected 35m @ 0.82% Cu including 4m @ 4.08% Cu; MOXDD26_003 intersected 32m @ 0.70% Cu including 9.4m @ 2.04% Cu; MOXDD26_002 intersected 36m @ 0.34% Cu.
- The mineralised system covers approximately 1.8km of interpreted strike and remains open along strike and at depth; additional assay results from Aquila, Aquila North, Apollo, and Acanthis are expected in the coming months.
Three-Platform Growth Strategy Centered on Mt Oxide Advancement
True North Copper operates a diversified asset portfolio within the Mt Isa region, one of the world’s premier copper provinces. The company is pursuing a three-platform growth strategy focused on expanding the Mt Oxide resource, developing the Cloncurry Copper Project to generate near-term revenue, and discovering new tier-one IOCG (Iron Oxide Copper Gold) systems through regional exploration. This approach aims to maximize shareholder value through multiple growth avenues across the business cycle. Mt Oxide remains the primary growth driver, with the recently identified Aquila deposit showing strong potential for scale and grade enhancement.
With established infrastructure and robust institutional backing in the Mt Isa region, True North holds full ownership of all exploration and development assets in Northwest Queensland, enabling streamlined strategic decision-making without joint venture constraints. The proximity of Mt Oxide and Cloncurry Copper Project within the same district offers operational synergies, shared infrastructure, and coordinated development planning, facilitating efficient advancement of both assets while maintaining focus on new discovery targets across the expanded tenement portfolio.
Wide Mineralisation and High-Grade Intercepts from Initial 2026 Drilling
The first three diamond drillholes of the 2026 program at Aquila have confirmed the company’s pre-drilling geological model. Drillhole MOXDD26_001 intersected 35 metres at 0.82% copper, 0.04% cobalt, and 3.4 g/t silver from 32 metres depth, including a high-grade core of 4 metres at 4.08% copper, 0.05% cobalt, and 14.6 g/t silver from 38 metres. This confirms the presence of both broad lower-grade mineralisation and focused higher-grade zones, supporting economic extraction potential at scale.
Drillhole MOXDD26_003 intersected 32 metres at 0.70% copper, 0.06% cobalt, and 7.2 g/t silver from 181 metres depth, with a higher-grade interval of 9.4 metres at 2.04% copper and 21.2 g/t silver. This extended the parallel Acanthis trend by 250 metres to about 500 metres total strike length, suggesting a more extensive mineral system than previously mapped. Drillhole MOXDD26_002 intersected 36 metres at 0.34% copper, 0.09% cobalt, and 1.5 g/t silver from 136 metres depth, confirming the eastern boundary of the Aquila system, including a 6-metre higher-grade interval at 0.75% copper from 136 metres, establishing lateral mineralisation continuity.
Aquila Mineralised System Now Spanning 1.8 Kilometres of Interpreted Strike
The 2026 drilling results have considerably expanded the known dimensions of the Aquila mineralised system, now defined over approximately 1.8 kilometres of interpreted strike. The system remains open both along strike and at depth, indicating that current drilling boundaries do not represent mineralisation limits. This open geometry presents significant opportunities for further extensions through ongoing exploration, with potential to increase resource tonnage and grade.
The broader Mt Oxide Project includes multiple additional targets beyond Aquila, such as Aquila North, Apollo, Acanthis, Ivena North, and Rhea. These targets have been identified through integrated geological and geophysical analysis and represent distinct exploration prospects within the district-scale copper system. The company’s geological model suggests Aquila mineralisation is part of a larger IOCG system typical of the Mount Isa metallogenic province. The presence of multiple targets with similar geological traits indicates potential for further copper-cobalt-silver discoveries, supporting long-term resource growth ambitions.
Managing Director Expresses Confidence in Project Scale and Geological Insights
Andrew Mooney, Managing Director of True North Copper, highlighted the importance of the drilling results in advancing the Mt Oxide Project as a potential standalone copper development. He noted the Aquila mineral system is now defined over more than 1.8 kilometres of interpreted strike, with broad mineralisation and well-developed higher-grade zones. This affirms the project's scale and grade characteristics suitable for development consideration independent of other assets.
Mooney emphasized that each completed drillhole enhances geological understanding and mineralisation controls, increasing confidence for targeting subsequent exploration phases and expanding the Aquila system. He underscored that these results represent only the first three diamond drillholes of a larger 2026 program, with multiple drillholes and target areas including Aquila, Aquila North, Apollo, and Acanthis still pending results. The company anticipates a strong exploration news flow over the coming months as the broader story unfolds.
2026 Drilling Program Aims to Expand Aquila and Evaluate Regional Targets
The 2026 drilling campaign is designed to advance Mt Oxide toward development readiness by expanding the Aquila discovery through infill and extension drilling, improving geological understanding, and defining controls on higher-grade mineralisation. The company plans to continue diamond drilling to enlarge the Aquila system, test depth and strike extensions, and refine the 3D geological model to support future resource estimates and technical studies.
Simultaneously, regional exploration is progressing across Mt Oxide to identify additional copper-cobalt-silver deposits. Priority targets include Apollo, Acanthis, Ivena North, and Rhea, identified through systematic IOCG system exploration. The company also plans metallurgical testing and geological modelling to support long-term development planning, addressing ore processing, product specifications, and recovery rates essential for development decisions. This comprehensive approach balances near-term resource growth, medium-term technical advancement, and long-term discovery potential.
Upcoming Assay Results from Multiple Target Areas Expected Soon
True North Copper expects further assay results from the 2026 drilling program over the coming months from multiple target zones. Results are anticipated from Aquila, where infill and extension drilling continues; Aquila North, testing northern extensions; Apollo, a separate discovery within Mt Oxide; and Acanthis, the parallel trend extended by 250 metres in MOXDD26_003. This steady stream of assay data will provide investors with regular updates on exploration progress and support geological data accumulation for resource estimation and development planning.
These forthcoming results will refine the 3D geological model of Aquila and related targets, contribute to resource estimation, and demonstrate ongoing exploration execution to investors and the market. This pipeline positions the company to maintain investor engagement through 2026 and potentially into 2027, delivering a series of newsflow events that highlight exploration advancements. The timing and content of these results will be crucial for the company’s near-term market profile and investor confidence in Mt Oxide as a development prospect.
Cloncurry Copper Project Resource Base Underpins Near-Term Cash Flow Strategy
True North Copper’s three-platform strategy includes the Cloncurry Copper Project as a near-term revenue source. Cloncurry hosts a defined mineral resource of 126,000 tonnes of copper and 163,000 ounces of gold, with multiple open pit development scenarios and potential underground options. The company is conducting pre-feasibility studies to advance Cloncurry toward development decisions. This asset is expected to generate near-term cash flow, funding ongoing exploration and development across the portfolio, including Mt Oxide.
Cloncurry’s proximity to Mt Oxide within the Mt Isa district offers operational advantages for a multi-asset company. Shared infrastructure, skilled labor, supply chains, and service providers support both projects efficiently. Cloncurry’s defined resource and active pre-feasibility study provide a near-term development focus and potential first cash flow, while Mt Oxide represents a longer-term resource growth opportunity. This strategic balance enables True North to manage near-term production needs alongside exploration upside, fostering sustainable long-term value creation.
Regional Exploration Targeting Tier-One IOCG Discoveries Adjacent to Development Assets
Beyond Aquila and Cloncurry, True North Copper targets tier-one IOCG systems throughout the Mount Isa corridor. Recent tenement expansions adjacent to Mt Oxide and Cloncurry consolidate exploration within one of Australia’s top metallogenic provinces. The company is systematically exploring these tenements to identify additional copper-cobalt-silver deposits akin to Aquila. This discovery-driven strategy acknowledges the Mount Isa corridor’s potential to host multiple large, high-grade mineral deposits, supporting significant resource growth.
Systematic exploration integrates geological mapping, geochemical sampling, and airborne and ground geophysical surveys to identify IOCG system targets. The 250-metre extension of the Acanthis trend in MOXDD26_003 exemplifies this integrated approach’s success. Priority targets including Apollo, Acanthis, Ivena North, and Rhea have progressed to drilling based on this work, reflecting management’s confidence in discovery potential. The focus on multiple district discoveries provides growth optionality and positions True North as an emerging Mt Isa copper district player.
Exploration Upside and Open Strike Length Highlight Strong Development Potential
The company reports that Aquila, combined with positive results from parallel trends and regional targets, has substantially increased confidence in Mt Oxide’s broader exploration upside. The mineral system remains open along strike and at depth, typically indicating significant potential for resource expansion through continued drilling. Multiple mineralised trends, including the Acanthis zone now extended to approximately 500 metres strike, suggest the system comprises several discrete mineralised zones. This IOCG-style mineralisation can support substantial resource accumulation across different depths.
The 3D geological model, refined with 2026 diamond drilling data, has identified additional exploration targets and potential extensions for future drilling. Broad mineralisation and well-developed higher-grade zones observed in the initial drillholes indicate Aquila possesses the geological traits necessary for economic development. Open geometry at depth and along strike means future drilling could significantly increase the known mineral inventory. Management’s confidence in Mt Oxide as a standalone copper project reflects demonstrated scale, grade, and geological continuity, with scope for further growth through ongoing exploration success.
