Tertiary Minerals — New pXRF Drill Results from Target A1

Tertiary Minerals reports final drill results but offers no new resource or financial data.

What the company is saying

Tertiary Minerals plc frames this update as the completion of all portable X-Ray Fluorescence (pXRF) drill results from its Phase 4 programme at the Mushima North Project in Zambia. The announcement highlights specific intersections—7m at 0.52% Cu and 5m at 0.57% Cu—alongside broader intervals such as 66m at 0.30% Cu and 68m at 0.28% Cu, emphasizing the continuity of mineralisation. The company reiterates its previously reported near-surface Exploration Target of 15–30 million tonnes at 40–60 g/t silver, claiming the new results 'continue to support' this target but without presenting a formal resource estimate. Elevated levels of bismuth, antimony, and gallium are mentioned to underscore the project's polymetallic potential. The narrative is forward-looking, stressing imminent laboratory assays, the start of metallurgical testwork, and the intention to deliver a maiden Mineral Resource Estimate. The tone is upbeat and promotional, repeatedly referencing the 'exciting time' for the company and the significance of the Discovery Zone, but it avoids quantifying economic impact or providing financial context.

What the data suggests

The technical disclosure details 39 completed RC drill holes totaling 3,639 meters, with all pXRF results now released. Key intersections include 7m at 0.52% Cu, 5m at 0.57% Cu, 66m at 0.30% Cu, and 68m at 0.28% Cu, with maximum silver values of up to 115 g/t in the high-grade zone and 144 g/t in the broader target area. The Discovery Zone is described as 500m long, 300m wide, and up to 75m thick, based on a 25 g/t silver equivalent cutoff. Additional geochemical anomalies—bismuth up to 991 g/t, antimony up to 824 g/t, and gallium up to 40 g/t—are reported, but no economic analysis or resource calculation is provided. The company does not disclose the number of samples submitted for laboratory assay or provide a timeline for when certified results will be available. There is no financial data, cost disclosure, or evidence of progress toward a JORC-compliant resource. The data confirms technical progress but does not substantiate the scale or economic viability implied by the exploration target.

Analysis

The announcement is upbeat, highlighting the completion of pXRF drill results and the support these provide for a previously reported exploration target. The narrative is positive and forward-looking, with several claims about imminent laboratory results, metallurgical testwork, and future resource modelling. However, all disclosed progress is at the exploration stage, with no profitability, revenue, or cost data provided. The key realised facts are the completion of drilling and the reporting of specific intersections, but the larger claims about resource potential and future milestones remain unsubstantiated by binding agreements or financial metrics. The gap between narrative and evidence is moderate: while technical results are disclosed, the announcement leans on aspirational language about future steps and project scale without quantifying economic impact or timelines for value realisation.

Risk flags

• ●The absence of any financial disclosure—such as cash position, exploration spend, or funding status—prevents assessment of the company's ability to sustain ongoing exploration or advance to development. This matters because prolonged exploration without clear funding can result in dilution or project delays.
• ●Reliance on pXRF results, which are indicative but not definitive, introduces uncertainty regarding the accuracy of reported grades and intervals. Certified laboratory assays may materially differ from pXRF readings, which could impact the perceived scale or grade of mineralisation.
• ●The company's reiteration of a large exploration target (15–30Mt at 40–60 g/t silver) is not supported by a formal resource estimate or economic study. Without independent verification or a JORC-compliant resource, the project's scale and value remain speculative.
• ●Forward-looking statements about imminent metallurgical testwork and resource modelling are not backed by disclosed timelines, budgets, or technical milestones. Delays or negative results in these next steps could materially alter the project's outlook.

Bottom line

This announcement marks the completion of pXRF drill reporting at Mushima North but does not deliver a resource estimate, economic study, or financial update. The technical results confirm mineralisation and suggest potential, but all claims about project scale and value remain unsubstantiated by independent assays or resource modelling. The upbeat tone and repeated references to imminent milestones are not matched by hard data or binding commitments. For investors, the practical impact is limited: there is no new actionable information on project economics, funding, or timeline to development. The most important takeaway is that while technical progress is real, the investment case remains speculative until certified assays, a maiden resource, and financial disclosures are provided.

Announcement summary

(AIM: TYM) Tertiary Minerals plc announced the last remaining portable X-Ray Fluorescence (pXRF) results of drill samples from the Phase 4 drill programme at Target A1, Mushima North Project in Zambia. The results continue to support the previously reported near surface Exploration Target of 15-30 million tonnes at 40-60 g/t silver and confirm the presence of a higher-grade mineralisation area within the Discovery Zone. Drill intersections include 7m at 0.52% Cu from 48m downhole and 5m at 0.57% Cu from 66m downhole. Additional intersections include 66m at 0.30% Cu from 14m downhole and 68m at 0.28% Cu from 13m downhole. The company reported further values of up to 115 and 144 g/t silver in the high-grade zone and the larger exploration target, respectively. All selected drill samples have now been submitted to the certified laboratory and results are expected over the coming weeks. Initial metallurgical testwork is set to commence imminently, followed by Mineral Resource modelling.

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