Pinnacles Drilling Yields Up to 56.4% ZnEq and 1,562g/t AgEq in Latest Results

Exceptional Grades Extend Mineralisation at Pinnacles

Broken Hill Mines Limited (ASX, BHM) has announced further impressive results from its ongoing drilling program at the Pinnacles Mine in New South Wales. The latest assays reveal exceptionally high-grade silver-lead-zinc intercepts, including standout results of 7.9 metres grading 56.4% zinc equivalent and 1,562 grams per tonne silver equivalent. These findings come from the Junction and Rope Shaft areas, extending known mineralisation and confirming the continuity of high-grade zones.

Emerging Gold and Copper Potential

Beyond the traditional silver-lead-zinc system, the drilling has also identified a significant shallow zone of gold and copper mineralisation. Notably, a broad intercept of 23.1 metres at 1.1 grams per tonne gold and 0.2% copper was recorded, highlighting an unquantified but promising target for resource expansion. This discovery adds a new dimension to the Pinnacles project, potentially enhancing its economic profile.

Strategic Drilling Expansion and Near-Term Mining Prospects

The company has expanded its phase 1 drilling program to approximately 6,000 metres, with around 75% of assay results still pending. This aggressive exploration approach aims to rapidly delineate resources suitable for near-term open pit mining. The targeted high-grade ore is planned for processing at Broken Hill Mines’ existing Rasp Mine plant, located about 15 kilometres from Pinnacles, leveraging existing infrastructure and reducing capital expenditure.

Historical Context and Joint Venture Framework

The Pinnacles Mine, discovered in 1886, has a rich history of intermittent mining, with recent exploration adding significant high-grade resources such as the Perseverance lode. Broken Hill Mines operates Pinnacles under a binding joint venture agreement, entitling it to 70% of profits, with ore processing centralized at the Rasp Mine. This arrangement positions the company to efficiently advance development while managing operational risks.

Looking Ahead, Resource Update and Market Implications

An updated Mineral Resource Estimate is scheduled for release in the first half of 2026, which will incorporate the latest drilling data and guide mining decisions. The combination of exceptional grades, expanding drilling, and emerging gold-copper zones suggests Pinnacles could become a significant contributor to Broken Hill Mines’ production pipeline. Investors and analysts will be watching closely as further assay results and resource updates unfold.