Tertiary Minerals show more high grade results from Mushima North

Tertiary Minerals delineated an approximately 400-metre higher-grade silver-copper-zinc zone at its Mushima North project in Zambia. The best Discovery Zone drill intercept was 52 metres grading 99 g/t silver, 0.41% copper and 0.43% zinc from 39 metres, equivalent to 130 g/t silver. Mineralisation extends beyond the current Exploration Target and remains open at depth, supporting further exploration upside.

Analysis

TYM’s valuation is likely to remain driven by exploration optionality rather than in-situ metal value until management establishes continuity, true width, recoveries and a credible route to resource conversion. The near-surface nature of the reported interval can improve eventual development economics, but polymetallic projects often lose value at the metallurgy and concentrate-marketing stage; zinc and copper credits only command full value if recoveries and impurity levels are acceptable. For a thinly traded AIM micro-cap, the immediate catalyst is likely retail/speculative volume rather than institutional re-rating, creating a meaningful risk of a post-news liquidity fade over days to weeks.

The more material 1-3 month catalyst path is step-out drilling that demonstrates grade continuity along strike and at depth, followed by an independently constrained resource estimate. A 6-18 month re-rating would require evidence that the project can support a mineable scale and that financing dilution is manageable; absent this, exploration success may increase capital requirements faster than equity value. Zambia exposure adds leverage to the copper cycle, but also creates permitting, infrastructure and fiscal-regime sensitivity that can dominate geology for sub-scale developers.

Consensus may overvalue the silver-equivalent headline grade: equivalency calculations embed metal-price and recovery assumptions, while the market needs payable-metal economics and widths that translate into a practical mining method. Conversely, the market could be underpricing strategic value if follow-up drilling identifies a larger copper-bearing system, because copper-focused regional acquirers generally place more value on scalable copper inventory than on silver-rich exploration targets. The thesis is falsified by step-out holes showing discontinuous mineralisation, materially lower grades outside the discovery area, adverse metallurgy, or an equity raise before a resource-defining program is completed.

Key Decisions for Investors

• No immediate core position in TYM: treat the release as a liquidity event rather than a resource-validation event. Reassess after follow-up assays establish continuity over at least two additional drill fences and management discloses planned meterage, funding source and timing.
• For a high-risk catalyst sleeve only, consider a small TYM starter position after the initial volume spike normalizes, with a 3-6 month horizon into step-out results. Size for total-loss exploration risk; take profits if the shares re-rate materially without a resource, metallurgy or funding milestone.
• Use a copper-price hedge against a TYM long through short COPX or reduced exposure to diversified copper beta if the position is intended to isolate project-specific drilling upside; TYM’s equity sensitivity will otherwise be dominated by copper sentiment during risk-off periods.
• Set a dilution alert: any discounted equity financing, warrant-heavy placement, or drilling-program expansion not matched by a resource timetable is a thesis downgrade, since micro-cap exploration returns are highly sensitive to share-count growth.
• Monitor ARC Minerals (ARCM) and broader Zambia copper-developer sentiment as a regional read-through, but do not assume peer upside transfers to TYM unless drilling establishes copper scale rather than a localized silver-equivalent target.