Lunnon Metals Delivers $39M Free Cash Flow Within 3.5% of Feasibility Forecast
Key Takeaways
- Lady Herial generated approximately $39 million in free cash flow at Lunnon Metals' 70% share (pre-tax, unaudited), within 3.5% of the $40.4 million feasibility study estimate — and on a like-for-like basis, the 70% share figure of $40.6 million marginally outperformed the FS.
- Total production reached 303,437 tonnes at 1.68 g/t Au for 14,910 oz gold sold at 91% metallurgical recovery, with gold ounces delivered hitting 100.7% of the feasibility study Ore Reserve estimate despite grade coming in 11.1% lower than forecast.
- Lunnon Metals held a cash balance of $41.4 million at 31 August 2026, with the $13 million self-funded FY2027 drill program already underway — no equity raise required.
- The final invoice of approximately $5.1 million has been sent to Gold Fields subsidiary SIGM for August ore delivery, against direct operating costs of approximately $1.2 million for that month, with settlement to confirm the final free cash flow figure.
- Group gold MRE now totals 1,415,600 tonnes at 1.6 g/t Au for 73,200 oz across Lady Herial and Hustler, alongside a 4.2 million tonne nickel MRE at 2.7% Ni for 113,600 tonnes of contained nickel.
Lady Herial delivers: final results confirm feasibility study and ~$39M free cash flow
Lunnon Metals has closed the book on the Lady Herial open pit gold mine, with final results confirming the operation generated approximately $39 million in free cash flow at the company’s 70% share level (pre-tax, unaudited). The milestone validates management’s execution from first drill hole through to final ore delivery.
Total production reached 303,437 tonnes @ 1.68 g/t Au, yielding 14,910 oz gold sold at 91% metallurgical recovery under the Ore Purchase Agreement (OPA) with Gold Fields subsidiary St Ives Gold Mining Co. Pty Ltd (SIGM).
The Gold Fields exclusive talks that established the Ore Purchase Agreement structure were a pivotal precondition for the project proceeding, with SIGM taking delivery of ore at its St Ives processing facility rather than Lunnon Metals building its own treatment infrastructure.
The final invoice of approximately $5.1 million has been sent to SIGM for August ore delivery, against direct operating costs of approximately $1.2 million for that month (unaudited, excluding GST). With those invoices settled, the free cash flow figure will be confirmed. Lunnon Metals reported a cash balance of $41.4 million at 31 August 2026 (unaudited), with the $13 million self-funded FY2027 drill program already underway.
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Q1 FY27 reconciliation: how actual results tracked against the January 2026 feasibility study
The standout story here is not just that the project made money — it’s how closely the actual results tracked the January 2026 Feasibility Study (FS) across every major metric.
Thirteen percent more tonnes were mined than forecast, driven by occasional dilution and minor additional ore blocks. Grade came in 11.1% lower as a direct result. Yet gold ounces delivered reached 100.7% of the FS Ore Reserve estimate — the grade dilution was largely offset by the additional material mined. Total operating costs ran just 5.1% higher, mostly reflecting haulage and processing costs on those extra tonnes.
The net result: free cash flow at Lunnon Metals’ 70% share came in at $39.0 million, within 3.5% of the $40.4 million FS estimate.
There is one important accounting distinction worth understanding. The FS calculation did not include $2.24 million in grade control, metallurgy, and geotechnical costs that had been spent prior to the project commencing. Under the final OPA terms, Lunnon Metals recouped those sums before the 70:30 split was applied. On a like-for-like basis — calculated the same way as the January 2026 FS — free cash flow was $57.9 million (100% basis) and $40.6 million (70% Lunnon Metals share), both outperforming the FS figures of $57.7 million and $40.4 million respectively.
| Item | FS Estimate (Jan 2026) | Actual | Variance | Notes |
|---|---|---|---|---|
| Ore (tonnes) | 268,247t | 303,437t | +13.1% | Occasional dilution and minor additional ore blocks |
| Revenue | $92.54M | $93.26M | +0.8% | Near-identical outcome |
| Gold oz (post OPA metallurgical recovery) | 14,806 oz | 14,910 oz | +0.7% | 100.7% of FS Ore Reserve delivered |
| Grade | 1.89 g/t Au | 1.68 g/t Au | -11.1% | Lower grade offset by additional tonnes |
| Total operating cost | $30.10M | $31.62M | +5.1% | Mostly haul/process cost on additional tonnes |
| Free cash flow – 70% LM8 share (pre-tax) | $40.4M | $39.0M | -3.5% | Within rounding distance of FS; like-for-like basis outperforms |
All figures unaudited. Source: Lunnon Metals ASX announcement, 7 September 2026.
What is a feasibility study reconciliation — and why does it matter to investors?
A feasibility study (FS) is the detailed pre-mine financial and technical plan that tells investors what a project is expected to produce, what it will cost, and what it should return. Once mining is complete, reconciling actual results against those forecasts is how you measure whether a management team actually knows what they’re doing.
Most mining projects disappoint on at least one of these dimensions:
- Grade disappointment: The ore in the ground contains less metal per tonne than the model predicted.
- Cost overrun: Mining, haulage, or processing costs come in materially higher than forecast.
- Production shortfall: Tonnes mined fall short of the mine plan for operational or geological reasons.
Tight reconciliation — where actuals track closely against the FS — is genuinely uncommon. The Lady Herial result sits within a few percentage points on every major metric. For investors, that matters because it signals that the technical team can model a deposit accurately, permit it, build it, and operate it to plan. That credibility is directly relevant when assessing how much confidence to place in future Lunnon Metals studies and projections, whether for the Hustler deposit or results from the active FY2027 drill program.
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Mineral resources updated and drill program underway as Lunnon looks ahead
With mining complete, the Lady Herial Ore Reserve declared in the January 2026 FS has by default been entirely depleted. The final open pit void has also been used to cut and deplete the Lady Herial Mineral Resource Estimate (MRE), a JORC-compliant estimate of the mineralisation remaining in the ground.
Mining depleted the MRE’s Measured Resource category by 200,000 tonnes @ 2.7 g/t Au for 17,100 oz of gold, confirming this was an in-situ, undiluted figure. The post-depletion Lady Herial MRE (above a 0.5 g/t Au cut-off) totals 589,600 tonnes @ 2.0 g/t Au for 37,000 oz, representing the remaining underground and lower resource not accessed by the open pit.
The group-level picture across all gold and nickel assets is as follows:
- Lady Herial post-mining MRE: 589,600t @ 2.0 g/t Au for 37,000 oz (underground potential remaining)
- Hustler gold MRE: 826,000t @ 1.4 g/t Au for 36,200 oz
- Group total gold MRE: 1,415,600t @ 1.6 g/t Au for 73,200 oz
- Group nickel MRE: 4,200,000t @ 2.7% Ni for 113,600t Ni
- FY2027 drill program: Active and self-funded from operating cash flow
The company’s cash position of $41.4 million at 31 August 2026 provides a well-resourced platform for the drill program ahead. No usable executive quote was included in the ASX announcement, so none is reproduced here.
The Foster-Baker gold exploration programme is the primary vehicle for deploying the cash generated from Lady Herial, with the $13 million FY2027 budget targeting new discovery potential across the broader Kambalda district tenement package.
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