Copper Blow’s Open Mineralisation Raises Questions on Resource Scale and Development
Kingfisher Mining’s December 2025 drilling at the Copper Blow IOCG prospect near Broken Hill confirms strong, continuous high-grade copper-gold mineralisation, setting the stage for a maiden resource estimate.
- High-grade copper-gold assay results confirm mineralisation continuity over 600m strike
- South Zone delivers standout intercepts including 4m at 3.43% copper and 0.74 g/t gold
- North Zone shows broad zones with potential bulk tonnage, including 41m at 0.44% copper
- First drilling at Copper Blow in over seven years validates historical data
- Follow-up drilling and resource modelling planned for Q1 2026
A Return to Copper Blow
Kingfisher Mining Limited (ASX, KFM) has marked a significant milestone with the completion of its first drilling program at the Copper Blow IOCG prospect near Broken Hill, New South Wales, since acquiring the project in late 2025. The Reverse Circulation (RC) drilling campaign, conducted in December 2025, comprised six holes totalling 930 metres and represents the first on-ground activity at Copper Blow in over seven years.
Confirming Continuity and Grade
The assay results from this initial program have confirmed the presence of broad, high-grade copper-gold mineralisation extending over a 600-metre strike length. Notably, the South Zone delivered impressive intercepts such as 13 metres at 1.2% copper and 0.26 grams per tonne (g/t) gold, including a high-grade 4-metre section at 3.43% copper and 0.74 g/t gold. The North Zone, while characterised by broader and lower-grade mineralisation, showed potential for bulk tonnage with intercepts like 41 metres at 0.44% copper.
Validating Historical Data and Geological Models
These results not only validate historical drilling data but also enhance geological understanding of the deposit. The mineralisation occurs in two distinct zones separated by a fault, with the South Zone exhibiting discrete high-grade lodes and the North Zone showing more extensive but lower-grade mineralisation. The geometry and continuity of these zones bear resemblance to the nearby world-class Broken Hill lead-zinc orebodies, suggesting promising structural parallels.
Next Steps Toward a Maiden Resource
Kingfisher’s Managing Director, Chris Bittar, emphasised the importance of these results as a foundation for the upcoming Maiden Mineral Resource Estimate. The company is advancing plans for follow-up drilling in the first quarter of 2026, aiming to expand the mineralised footprint both along strike and at depth. Concurrently, Kingfisher is progressing through necessary approvals and stakeholder engagement to ensure smooth operations for the next drilling phase.
Strategic Implications
The Copper Blow project, held under a joint venture with Broken Hill Mines Pty Ltd (ASX, BHM), where Kingfisher holds a 75% interest, is strategically located just 20 kilometres southeast of Broken Hill city. The project’s association with a prominent 4-kilometre magnetic anomaly and its IOCG classification positions it as a compelling exploration target within a historically rich mining district. Kingfisher’s renewed focus on this asset underscores its commitment to unlocking value through disciplined exploration and resource development.
Bottom Line?
Kingfisher’s promising drilling results at Copper Blow set the stage for a resource estimate that could reshape its exploration trajectory.
Questions in the middle?
- What will the maiden Mineral Resource Estimate reveal about the deposit’s economic potential?
- How will follow-up drilling refine the understanding of mineralisation continuity and depth extensions?
- What are the timelines and potential hurdles for securing all necessary approvals for ongoing exploration?
