Kingfisher Mining has reported strong copper-gold assay results from its recent RC drilling at the Copper Blow IOCG prospect near Broken Hill, confirming wide, high-grade zones and extending mineralisation towards major faults. These results advance the project closer to a maiden resource estimate, supported by a processing deal with Broken Hill Mines.
- Wide, shallow high-grade copper-gold zones confirmed in North Zone
- Significant intercepts include 26m at 2.57% Cu and 0.75 g/t Au
- Mineralisation extended 50m towards major cross fault, open at depth and strike
- Progress towards maiden Mineral Resource Estimate accelerated
- Processing agreement with Broken Hill Mines offers low-capital development path
High-Grade Copper-Gold Zones Confirmed in North Zone
Kingfisher Mining Limited (ASX:KFM) has delivered some of its best assay results yet from the Copper Blow IOCG prospect near Broken Hill, NSW. The recent reverse circulation (RC) drilling campaign confirmed wide zones of shallow, high-grade copper mineralisation in the North Zone, including standout intercepts such as 26 metres at 2.57% copper and 0.75 grams per tonne gold from 73 metres, featuring a 13-metre section grading 4.07% copper and 1.20 g/t gold. Another near-surface hole returned 43 metres at 1.32% copper and 0.32 g/t gold from surface, highlighting the scale and strength of the mineralised system.
Extension of Mineralisation Towards Major Fault and Open-Ended Potential
The drilling extended high-grade sulphide mineralisation by approximately 50 metres towards a major cross fault interpreted as the boundary between the North and South mineralised zones. Crucially, mineralisation remains open both at depth and along strike, with a 58-metre intersection at 0.67% copper and 0.15 g/t gold from 165 metres downhole confirming continuity of the mineralised shear zone. This vertical and lateral extent underpins the potential for a sizeable resource over the 600-metre strike length identified in late 2025.
South Zone Continues to Show Robust Grades
While the North Zone grabbed headlines, drilling in the South Zone also returned encouraging results. Intercepts such as 3 metres at 1.99% copper and 0.45 g/t gold from 146 metres demonstrate that high-grade mineralisation continues in this area. Historical intercepts in the South Zone have included 16 metres at 2.67% copper and 0.62 g/t gold, and 4 metres at 6.13% copper and 4.23 g/t gold, suggesting further potential to delineate discrete high-grade lodes.
Advancing Towards Maiden Mineral Resource and Development Pathway
Kingfisher’s Managing Director Chris Bittar emphasised the significance of these results, noting they represent a "significant step forward towards delivering a maiden Mineral Resource Estimate at Copper Blow." The company is already progressing geological modelling and planning for diamond drilling to support this milestone. The existing processing agreement with Broken Hill Mines (ASX:BHM), whose concentrator lies just 20 kilometres from Copper Blow, offers a clear, low-capital-cost pathway to development, potentially accelerating the project’s route to production.
This drilling campaign builds on momentum from prior programs, including the December 2025 campaign and earlier assays confirming high-grade zones. Kingfisher’s approach to systematically infill and extend the deposit, combined with its JV and processing cooperation with Broken Hill Mines, positions Copper Blow as a promising copper-gold project in a prolific mining district.
Next Steps Focus on Resource Definition and Exploration Upside
Looking ahead, Kingfisher plans to integrate the new assay results into ongoing geological modelling and advance approvals for a major diamond drilling program aimed at generating a maiden Mineral Resource Estimate. The company will also prioritise testing of undercover geophysical targets across the broader 4-kilometre magnetic anomaly that hosts Copper Blow, which remains largely unexplored beyond the main prospect. Metallurgical assessments are underway to further evaluate processing options and project economics.
With the mineralised system open at depth and along strike, and the project benefiting from nearby processing infrastructure, Kingfisher is steadily advancing Copper Blow towards a potential development phase. The coming months will be critical to see if these promising drill results translate into a robust resource and viable mining operation.
Bottom Line?
Kingfisher’s latest drilling results reinforce Copper Blow’s potential as a substantial high-grade copper-gold resource, setting the stage for a maiden resource estimate and leveraging a strategic processing deal to streamline future development.
Questions in the middle?
- How will upcoming diamond drilling refine the resource confidence at Copper Blow?
- What impact will metallurgical test results have on the project's processing strategy?
- Can Kingfisher extend mineralisation beyond the current 600-metre strike and depth limits?