Canterbury Resources reaffirms its commitment to Central Queensland copper exploration by clarifying details of its acquisition of the Monto Project, highlighting the John Hill deposit’s significant inferred resource and plans for deep drilling in 2026.
- Acquisition of six Monto tenements for $400,000 plus 5 million shares
- John Hill deposit hosts 254Mt at 0.21% Cu with open extensions
- Deep drilling planned for 2H 2026 to test northeast targets
- Mineralisation style and scale comparable to Briggs Project
- Updated disclosure provided under ASX Listing Rule 5.8.1
Monto Acquisition Bolsters Central Queensland Portfolio
Canterbury Resources Limited (ASX:CBY) has re-released its April announcement on acquiring the Monto Project, adding clarity to meet ASX Listing Rule 5.8.1 disclosure requirements without altering the core technical conclusions. This move secures six exploration tenements roughly 80km south of its flagship Briggs Copper Project, for a combined consideration of $400,000 cash and 5 million shares, representing about 1.9% of Canterbury’s equity. Completion hinges on due diligence and approvals, expected by early June 2026.
John Hill Deposit Emerges as Exploration Focus
The Monto Project’s crown jewel is the John Hill deposit, a porphyry copper-molybdenum system with an inferred mineral resource estimate (MRE) of 254 million tonnes grading 0.21% copper and 100ppm molybdenum at a 0.15% copper cut-off. This scale rivals Canterbury’s Briggs deposit, which hosts indicated and inferred resources totaling over 900 million tonnes with broadly similar grades. John Hill’s mineralisation remains open laterally and at depth, with historic drilling extending to 555 metres and intersecting broad zones of copper and molybdenum mineralisation.
Canterbury plans a ~2,000-metre diamond core drilling campaign in the second half of 2026, targeting the northeast portion of John Hill where previous holes like 12KC055 returned 464 metres at 0.20% copper and 170ppm molybdenum from 91 metres depth. The deposit’s mineralisation style, quartz vein-hosted chalcopyrite and molybdenite within granodiorite, is analogous to Briggs, where a prefeasibility study is underway for a large-scale open cut operation producing copper concentrate for smelters. This drilling program aims to define a similar development opportunity at John Hill.
Historical Data and Technical Rigor Underpin Confidence
Extensive exploration from 2008 to 2013 by Aeon Metals, the previous tenement holder, laid the groundwork for John Hill’s resource estimate, prepared by SRK Consulting in line with the 2012 JORC Code. The MRE is classified as Inferred due to sparse drill coverage, reflecting the early stage of resource delineation. Sampling and assay protocols followed industry standards, with quality control measures ensuring data integrity. Metallurgical tests indicate promising recoveries of 91% copper and 95% molybdenum from flotation tests on composite samples, supporting the deposit’s economic potential.
Canterbury’s Managing Director, Grant Craighead, emphasised the strategic value of the acquisition: “There is a global shortage of major copper development opportunities in favourable jurisdictions, and projects such as Briggs and Monto will become important contributors to future copper supply.” This aligns with the company’s recent aggressive drilling at Briggs, where a major 30,000-metre diamond drilling program is underway as part of the prefeasibility study, illustrating a coordinated regional approach to copper resource development major drilling campaign at Briggs.
Strategic Fit and Next Steps
The Monto acquisition complements Canterbury’s existing portfolio, which includes significant inferred resources at Idzan Creek and Wamum Creek in Papua New Guinea, aggregating to 2.7 million tonnes of copper and 3.2 million ounces of gold. The company’s strategy of partnering with industry players like Rio Tinto and Alma Metals mitigates exploration risk and supports capital-intensive drilling programs. The planned deep drilling at John Hill will test the deposit’s extensions and refine resource confidence, a critical step toward potential development.
Market watchers will be keen to see how the Monto Project’s exploration results evolve alongside the progressing prefeasibility study at Briggs, which recently reported robust scoping study outcomes and ongoing resource upgrades Briggs prefeasibility progress. The interplay between these projects could position Canterbury as a significant copper developer in Central Queensland amid tightening global supply dynamics.
Bottom Line?
Monto’s scale and geology offer a promising copper-molybdenum opportunity, but resource confidence hinges on upcoming drilling and approvals.
Questions in the middle?
- How will the 2H 2026 drilling results at John Hill influence Canterbury’s resource classification and development timeline?
- What synergies might Canterbury leverage between the Monto Project and its Briggs copper operations?
- How might global copper supply pressures impact investor appetite and valuation for Canterbury’s expanded portfolio?