Broken Hill Mines Confirms High-Grade Silver-Lead-Zinc at Stephens Trig
Key Takeaways
- Kingfisher Mining's five-hole, 584-metre RC program at Stephens Trig has confirmed high-grade silver-lead-zinc mineralisation within a Broken Hill-style system 15km north of Broken Hill, validating historical drilling with modern methods for the first time since 2017.
- The standout intercept of 1m @ 198 g/t Ag from 111m in hole 26STRC_020 highlights meaningful precious metals enrichment potential within the broader base metal system.
- Down-dip continuity is confirmed, with hole 26STRC_018 returning 2m @ 17.5% Pb+Zn within a broader 5m @ 7.4% Pb+Zn zone, demonstrating the system remains open at depth.
- A Mining and Processing Agreement with Broken Hill Mines, announced 4 March 2026, creates a potential pathway to leverage existing regional processing infrastructure, reducing future development capital requirements.
- Copper Blow drilling approvals have been received from the NSW Resources Regulator, with the program now expected to commence in October 2026, adding a near-term catalyst to the portfolio.
High-grade silver-lead-zinc confirmed at Stephens Trig
Kingfisher Mining (ASX: KFM) has returned to its Stephens Trig Silver-Lead-Zinc Prospect for the first time since 2017, completing a five-hole, 584-metre reverse circulation (RC) program that has confirmed high-grade silver-lead-zinc mineralisation within a Broken Hill-style system approximately 15 kilometres north of Broken Hill, NSW. The prospect is held under a joint venture structure (75% KFM, 25% Broken Hill Mines), and the results validate historical drilling rather than representing a first-ever discovery at the site.
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Standout intercepts from the maiden modern RC program
The program returned multiple high-grade intersections across four of the five holes tested. Key results include:
- 5m @ 7.4% Pb+Zn and 10 g/t Ag from 79m, including 2m @ 17.5% Pb+Zn and 24 g/t Ag from 79m (26STRC_018)
- 4m @ 3.2% Pb+Zn and 11 g/t Ag from 67m, including 1m @ 8.3% Pb+Zn and 36 g/t Ag from 70m (26STRC_018)
- 1m @ 9.3% Pb+Zn and 40 g/t Ag from 85m (26STRC_020)
- 1m @ 1.5% Pb+Zn and 198 g/t Ag from 111m (26STRC_020) — the standout precious metals result from the program
- 4m @ 2.7% Pb+Zn and 4 g/t Ag from 82m, including 1m @ 5.2% Pb+Zn and 2 g/t Ag from 83m (26STRC_019)
- 3m @ 2.4% Pb+Zn and 6 g/t Ag from 57m, including 1m @ 5.3% Pb+Zn and 9 g/t Ag from 59m (26STRC_021)
| Hole ID | From (m) | Interval (m) | Pb+Zn (%) | Ag (g/t) |
|---|---|---|---|---|
| 26STRC_018 | 67 | 4 | 3.2% | 11 |
| 26STRC_018 (incl.) | 70 | 1 | 8.3% | 36 |
| 26STRC_018 | 79 | 5 | 7.4% | 10 |
| 26STRC_018 (incl.) | 79 | 2 | 17.5% | 24 |
| 26STRC_019 | 82 | 4 | 2.7% | 4 |
| 26STRC_019 (incl.) | 83 | 1 | 5.2% | 2 |
| 26STRC_020 | 85 | 1 | 9.3% | 40 |
| 26STRC_020 | 111 | 1 | 1.5% | 198 |
| 26STRC_021 | 57 | 3 | 2.4% | 6 |
| 26STRC_021 (incl.) | 59 | 1 | 5.3% | 9 |
All intervals reported are downhole lengths. True widths have not been confirmed.
What the results tell us geologically
The most significant structural finding from the program is down-dip continuity. Hole 26STRC_018 demonstrated that mineralisation remains open and continues at depth, with high-grade results including 2m @ 17.5% Pb+Zn sitting within a broader 5m @ 7.4% Pb+Zn zone — telling you the system has not pinched out.
Strike continuity is also confirmed. Results across multiple holes show consistent mineralisation along the 1.5km lead-zinc geochemical anomaly that defines the prospect, reinforcing the lateral extent of the mineralised trend beneath shallow alluvial cover.
The 198 g/t Ag intercept in 26STRC_020 is the headline precious metals result and highlights a key characteristic of this style of system: high-grade silver zones can be present within the broader base metal mineralisation. The company notes this demonstrates potential for precious metals enrichment, though the extent of that enrichment remains to be defined through further work.
What is Broken Hill-style mineralisation and why does it matter?
“Broken Hill-type” (BHT) mineralisation refers to Broken Hill-type (BHT) stratiform SEDEX Pb-Zn-Ag mineralisation hosted within garnetiferous pelitic gneiss, amphibolite, blue quartz lodes, and garnet-quartz rocks.
Confirming this style of mineralisation at Stephens Trig matters because it places the prospect within a well-understood geological framework in the Broken Hill district.
A growing Broken Hill portfolio with a strategic infrastructure edge
Stephens Trig is now the third validated Broken Hill opportunity in Kingfisher Mining’s portfolio, sitting alongside the Allendale silver-lead-zinc project and the flagship Copper Blow copper-gold project. All three remain exploration-stage assets, but the combination gives the company multiple active targets within a single, well-understood mining district.
Mining and Processing Agreement with Broken Hill Mines
Announced on 4 March 2026, the Mining and Processing Agreement with Broken Hill Mines provides a framework for the potential processing of mineralisation through existing infrastructure in the Broken Hill region. This agreement may reduce the capital requirements associated with any future development, as it creates a potential pathway to leverage established regional processing facilities rather than requiring standalone capital infrastructure. Both Stephens Trig and Allendale remain at exploration stage, and any development pathway would be subject to further exploration, resource definition, and technical and commercial studies.
Managing Director Chris Bittar
“These results are particularly encouraging given Stephens Trig has not seen drilling since 2017. Our first drilling program has validated the historical mineralisation and returned multiple high-grade silver-lead-zinc intersections, including a standout silver result of 198 grams per tonne.”
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What comes next for Kingfisher Mining
The company has outlined the following near-term work program:
- Stephens Trig and Allendale: Integrate the latest drilling results with historical exploration data and the geological model to assess mineralisation continuity, identify priority follow-up targets, and determine the next phase of exploration.
- Copper Blow (Drilling): Drilling approvals have been received from the NSW Resources Regulator. The program was originally scheduled to commence in September but is now expected to start in October, due to reduced drill rig availability following recent regional weather events in New South Wales.
- Copper Blow (Metallurgy): Preliminary metallurgical testwork is scheduled to commence to assess the metallurgical characteristics and potential processing pathways for the mineralisation.
- Copper Blow Maiden Mineral Resource Estimate: Drilling, metallurgical testwork, and geological modelling are all progressing towards completion of a Maiden Mineral Resource Estimate.
Kingfisher holds approximately 660km² of NSW tenure across three proven mining districts, providing multiple near-term news flow catalysts across its copper-gold and silver-lead-zinc portfolio.
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