Broken Hill Mines Reports High-Grade Lead-Zinc-Silver Intercepts from Pinnacles Phase 2 Drilling

High-grade drill results, but no financials or resource estimate to support investment decisions.

Risk flags

• ●The absence of a mineral resource or reserve estimate means investors cannot gauge the scale, grade continuity, or economic viability of the project. Without these figures, the investment case rests solely on selective assay highlights.
• ●No financial disclosures—such as costs, revenues, or profit projections—are provided, leaving the economic impact of the drilling results entirely speculative. This lack of transparency makes it impossible to assess whether the project can generate returns.
• ●Operational risks remain high, as the announcement only covers drilling and assay results, with no discussion of permitting, mining method, processing capacity, or logistical challenges. The claim that ore is processed at the Rasp plant is unsupported by operational data.
• ●The use of promotional language such as 'premium strategic value' and 'progressing strongly' is not backed by quantitative analysis, increasing the risk that expectations are being set without a foundation in economic reality.

Bottom line

This announcement from Broken Hill Mines delivers strong assay results and demonstrates ongoing drilling momentum at the Pinnacles mine, but omits all financial and economic context. Without a mineral resource estimate, cost data, or production plan, the investment case is unsubstantiated and rests on geological potential alone. The upbeat tone and references to commodity prices do not compensate for the lack of actionable financial information. Investors have no basis to assess project scale, profitability, or timing of returns. For this to become actionable, the company would need to release a compliant resource estimate, cost projections, and a clear development timeline. Until then, the most important takeaway is that high-grade assays alone do not make a mine or an investment case.

Announcement summary

(ASX: BHM) Broken Hill Mines has reported an extensive list of high-grade intercepts from Phase 2 drilling proximal to the historical open pit area of the restarted Pinnacles lead-zinc-silver mine in New South Wales. Assays from 29 drill holes targeting ore immediately under and adjacent to the open pit identified broad and shallow mineralisation, including best assays of 3.8 metres at 31.5% zinc equivalent (ZnEq) and 873 grams per tonne silver equivalent (AgEq) from 77m, and 14.4m at 20.3% ZnEq and 561g/t AgEq from 69.3m. Gold-copper assays included 5.6m at 3.2g/t gold and 0.2% copper from 87m, and 10m at 1.6g/t gold and 0.3% copper from 111m. The company stated that the 25,000m Phase 2 extensional and infill campaign is “progressing strongly”, with over 6,000m of drilled core currently being logged, sampled, and assayed, and approximately 31,000m of processed results to be incorporated into a planned mineral resource estimate upgrade before year end. The price of zinc has increased to US$3,800 per tonne and silver has rebounded to US$64 per ounce. Broken Hill Mines holds a binding heads of agreement over the Pinnacles development with Pinnacles Mines and Broken Hill Pinnacles, giving it exclusive operator status at the mine. Pinnacles profits are shared on a 70:30 basis via an agreed net smelter return calculation with applicable deductions.

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