Fitzroy Minerals Reports Copper Recoveries of up to 82.6% from Mini-Column Testing, With Preliminary Larger-Scale Results Trending Higher, at the Buen Retiro Copper Project, Chile

Fitzroy Minerals reported 21-day mini-column copper recoveries of 71.8% for high-grade oxide, 59.9% for low-grade oxide and 82.6% for mixed material at its Buen Retiro project in Chile. Preliminary 1-metre columns are trending toward recoveries of approximately 85%, 74% and 95%, respectively, after extended leaching, although these results remain unclosed and subject to confirmation. Low rock hardness of below 8 kWh/t and moderate abrasiveness support potentially lower crushing energy requirements; final metallurgical results are expected by March 1, 2027, ahead of a planned Q2 2027 PFS.

Analysis

FTZ’s valuation sensitivity is now less about geological optionality and more about whether recovery, acid intensity and cycle time can support a credible low-capex heap-leach design. The key economic asymmetry is ore-domain mix: strong performance in higher-grade and mixed material can materially raise payable copper per tonne, while lower-grade oxide risks becoming a marginal-tonnage problem if acid and pad-residence requirements remain elevated. Soft ore is a genuine potential capex/opex offset, but it does not compensate for poor scale-up or a longer leach cycle that expands pad inventory, working capital and pre-production time.

The near-term share move should be treated as liquidity-driven rather than NAV-driven: the economically meaningful data are closed 1-metre balances by December and the larger-column/ROM results beginning in November. Management’s projected outcomes are not bankable recoveries; industrial scaling, chloride reagent logistics/corrosion, water availability and Chilean permitting can all erode the apparent laboratory advantage. A 10-15 percentage-point recovery haircut versus the eventual PFS assumption would likely reduce project NAV disproportionately because fixed crushing, pad and SX-EW infrastructure is spread over fewer recovered pounds.

Contrarian view: the market may over-credit headline recovery before testing proves throughput and residue behavior at representative crush sizes. Conversely, if larger-scale testing validates high recovery at coarse crush with manageable acid use, FTZ could rerate ahead of the Q2-2027 PFS because it shifts from a resource story toward a potentially financeable oxide-copper development asset. SGSN has no investable read-through beyond reputational validation; lab work does not create material earnings exposure.

Key Decisions for Investors

• Maintain FTZ as a watch/accumulate-only micro-cap position over the next 1-3 months; add only after closed 1-metre balances confirm recoveries and acid consumption near management’s indicated trend. Size at <=50% of normal development-stage mining risk until larger-column data are available.
• Use the November larger-column initiation and December full 1-metre campaign as catalysts; take partial profits into any pre-data rally, since preliminary extrapolations are likely to be discounted once closed mass balances are reported.
• Set a thesis-failure trigger if representative-scale testing shows materially lower recovery than projected, materially higher acid consumption, or a leach cycle requiring pad residence beyond PFS economics. Also reassess if FTZ funds development through deeply discounted equity before the PFS, creating dilution that overwhelms metallurgical de-risking.
• For copper-beta exposure while awaiting technical validation, prefer liquid producers or COPX rather than extrapolating FTZ’s project-specific results into a broad copper thesis; Buen Retiro’s principal rerating driver is execution, not copper price alone.