Iltani Resources Intersects Lead-Zinc-Copper Sulphides in Maiden Drilling at Union Jack

Iltani hits sulphides in first Union Jack drilling; assays pending within two months.

What the company is saying

Iltani Resources reports the completion of three reverse circulation drill holes totaling 666 metres at the Union Jack prospect in north Queensland, targeting anomalies identified by a 2025 VTEM survey. The company highlights sulphide intercepts in all three holes, with the most substantial being 13 metres of sulphides plus pyrite up to 25% from 6m to 19m depth. Prior surface sampling in 2023 returned up to 2.3% copper, 39.5 g/t silver, 0.25 g/t gold, and 25 g/t indium, which the company references to suggest prospectivity. The announcement frames these technical results as evidence of a potentially significant mineralising system, but does not claim any resource or commercial outcome. Emphasis is placed on the technical progress and the imminent return of assay results from Intertek in Townsville. The tone is measured and factual, focusing on the specifics of drilling and next exploration steps rather than promotional language.

What the data suggests

The disclosed data confirms three drill holes completed for a total of 666 metres, each intersecting sulphide mineralisation of varying thickness and sulphide content: 3m at up to 15% sulphides, 9m at up to 35%, and 13m at up to 25%. These intercepts are described in terms of visual sulphide content, not assay grades, so the economic significance remains unquantified. Historical sampling from 2023 provides grades up to 2.3% copper and 39.5 g/t silver, but these are surface samples and may not reflect downhole mineralisation. No resource estimate, financial data, or production metrics are disclosed. The technical data is specific and clear, but the lack of assays or financial context means the announcement does not establish value or project scale. The evidence supports the claim of technical progress but does not yet demonstrate commercial potential.

Analysis

The announcement is factual and focused on technical exploration progress, specifically the completion of three drill holes and the reporting of sulphide intercepts. The majority of claims are realised and supported by specific numerical data (drill lengths, sulphide percentages, and prior sampling grades). Forward-looking statements are limited to the expectation of assay results within two months and plans for further mapping and sampling, which are standard for early-stage exploration updates. There is no exaggerated language or promotional tone; the narrative is proportionate to the evidence disclosed. No financial, resource, or production outcomes are claimed, and there is no mention of large capital outlays or long-dated, uncertain returns. The gap between narrative and evidence is minimal, and the announcement does not overstate progress.

Risk flags

• ●The absence of assay results means that the true grade and economic significance of the sulphide intercepts are unknown; visual estimates of sulphide content do not reliably predict metal grades, which could result in disappointing outcomes once assays are returned.
• ●No financial or operational metrics are disclosed, leaving investors unable to assess the company's cash position, exploration budget, or ability to fund further work; this opacity increases uncertainty about the sustainability of the exploration program.
• ●The announcement references potential for a large-scale mineralising system but provides no supporting geophysical or geochemical data beyond the three drill intercepts and prior surface samples; this introduces geological risk, as the scale and continuity of mineralisation remain unproven.

Bottom line

This update confirms Iltani Resources has completed its first drilling at Union Jack and intersected sulphides in all holes, but without assays, there is no evidence yet of economic mineralisation. The technical disclosure is clear, but the absence of financial data or resource estimates means investors cannot assess project value or company solvency. The company's narrative is credible and proportional to the evidence, with no signs of hype or overstatement. The next material development will be the release of assay results, which will determine whether these intercepts have commercial significance. For now, this is a standard early-stage exploration update with no actionable investment implications until assays are disclosed.

Announcement summary

(ASX: ILT) Iltani Resources has intercepted lead-zinc-copper sulphides in maiden drilling at the Union Jack prospect within the Featherbed Volcanics zone of its Herberton project in north Queensland. The company completed three reverse circulation holes for 666 metres to test anomalies around the Union Jack historical workings generated by a Herberton versatile time domain electromagnetic (VTEM) survey in 2025. The first hole intersected 3m of sulphides plus potentially related pyrite mineralisation of up to 15% sulphides from 113m to 116m, the second hole intercepted 9m of sulphides plus pyrite of up to 35% sulphides from 165m to 174m, and the third hole intersected 13m of sulphides plus pyrite of up to 25% sulphides from 6m to 19m. Prior sampling at Union Jack in 2023 returned up to 2.3% copper, 39.5 grams per tonne silver, 0.25g/t gold, and 25g/t indium. The Herberton VTEM generated two anomaly plates north and south of the workings, based on greater resolution, size, and depth. The company is planning more detailed mapping and sampling at Union Jack to confirm any surface indications of mineralisation associated with the historical workings and shallow intersections. Iltani Resources expects assay results from the drilling program to be returned sometime in the next two months.

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