Reserve update - ASX:WGX
Westgold declares 1.1Moz maiden Fletcher Ore Reserve; Fletcher resource up about 30% to 3.0Moz
Westgold has declared a maiden Fletcher Ore Reserve of 13.474Mt at 2.6g/t Au for 1.145Moz, classed entirely as Probable and drawn from Indicated resources. Fletcher's total Mineral Resource rose to 40.146Mt at 2.3g/t Au for 3.025Moz at 30 June 2026, with Indicated ounces up to 1.553Moz. The release gives no reserve economics, no drill results and no cash figures, so the tonnes and ounces are clear but their economic value is not shown.
(price sensitive) - Westgold Resources announced: "1.1Moz Maiden Fletcher Ore Reserve" (31 pages) - read the original
What investors must know
- Maiden Fletcher Ore Reserve of 13.474Mt at 2.6g/t Au for 1.145Moz, all Probable, derived from Indicated resources (about 74% of Indicated ounces, as stated).
- Fletcher Mineral Resource at 30 June 2026 is 40.146Mt at 2.3g/t Au for 3.025Moz, up from 2.325Moz at June 2025 (a stated increase of about 30%).
- Indicated resource rose from 0.295Moz to 1.553Moz at 2.7g/t Au, while Inferred fell from 2.030Moz to 1.472Moz, so part of the gain is a shift in classification rather than only new ounces.
- The reserve uses a Pre-Feasibility Study, a gold price of A$5,500/oz and cut-off grades of 2.1g/t (full cost), 1.4g/t (mine operating) and 1.0g/t (development) Au.
- No NPV, capital cost, operating cost or sensitivity figures are given, and the NI 43-101 technical report is not due until within 45 days of the release.
- Beta Hunt total Ore Reserve is now 21.7Mt at 2.34g/t Au for 1.6Moz, and total Mineral Resource is 74.6Mt at 2.25g/t Au for 5.4Moz.
Disclosure checks - the ASX's own focus areas
- Drill-hole table (collars, dip, azimuth, depth, every intercept)n/a
- JORC Table 1, Section 1 - sampling techniques and datapass
- JORC Table 1, Section 2 - reporting of exploration resultsn/a
- Competent person statementpass
- No metal equivalents - grades as assayedpass
- Balanced reporting - low and high grades both shownn/a
No exploration results are reported, so balanced reporting of intercepts does not apply. The resource table reports ounces above a stated 1.2g/t Au cut-off, and Inferred ounces (1.472Moz) are shown separately and excluded from the reserve.
- No visual estimates - assays onlypass
Red flags and notes
The release says the reserve is economically robust across a reasonable range of inputs but gives no NPV, IRR, capital cost, operating cost or quantified sensitivity results.
Westgold says deferring the approved 2.6Mtpa Higginsville stage may extend time at 1.6Mtpa but is not expected to materially affect the Group production outlook, with no figures given and the 4Mtpa timing undefined.
The reserve uses A$5,500/oz while broader Westgold reserve work uses A$4,800/oz long term; the release does not explain how the two are reconciled.
The Deswik optimisation used a field named gc_au, which the release does not explain as either the Mineral Resource grade or a grade control dataset.
Why these matter: JORC Table 1 - metal equivalents - balanced reporting - visual estimates
Resource / reserve
- Tonnes
- 40.1 Mt
- Grade
- 2.30 g/t Au
- Contained metal
- 3.03 Moz
- What changed
- June 2026 Fletcher MRE is 40.146Mt at 2.3g/t Au for 3.025Moz (Indicated 18.029Mt at 2.7g/t for 1.553Moz; Inferred 22.117Mt at 2.1g/t for 1.472Moz; no Measured), up from 30.974Mt at 2.3g/t for 2.325Moz in June 2025. Maiden Ore Reserve is 13.474Mt at 2.6g/t Au for 1.145Moz (Probable), derived from Indicated resources and reported inclusive of Mineral Resources converted to reserves.
How the price reacted
News signal positive, and on day 1 the stock moved +1.6% against the gold index (XGD). After 20 trading days: -5.0% against the XGD.
From the last close before the market could trade on it ($5.83 on 17 Aug 2026), with day-1 volume 0.9x the 20-day average.
WGX's past price-sensitive news
After 9 earlier announcements, WGX rose on day 1 8 times and fell 1 times - an average move of +2.4%.
No earlier price-sensitive reactions are on record for this stock, so there is no direct history for news of this kind. The data supplied does not include the share price move on the day of release. Between the release close of A$5.83 and A$5.71 now, the shares fell 2.1%, in line with XGD (-2.1%) but better than GDX (-11.2%) and GDXJ (-17.7%). The price sits in the lower part of its A$4.24-8.16 52-week range.
Past reactions describe what happened, not what will. How prices react to results
The historical pattern
What share prices did after past results like this one, from DrillScore's own records. It describes the past: it isn't a forecast for WGX and it isn't advice.
After 41 other announcements read as 'positive', stocks moved +1.8% by day 1, +2.4% by day 5 and +1.1% by day 20 against the XGD on average.
- Day 1
- +1.8%
- Day 5
- +2.4%
- Day 20
- +1.1%
Only 1 of WGX's earlier announcements have traded - too few to show a pattern.
In the 20 trading days before this release the XGD gold index moved +23.7% (rising). After 38 past gold announcements released into a rising gold index, stocks moved +1.9% by day 1, +2.3% by day 5 and -4.4% by day 20 on average - before taking the market's own move out.
- Day 1
- +1.9%
- Day 5
- +2.3%
- Day 20
- -4.4%
A strand leans up or down when its day-5 average is 1% or more either way. Each is shown on its own and never added up into a prediction: small samples swing, and every result is different. The full backtest - how it's worked out
The market it landed in
| Market | On the day | Now | Since |
|---|---|---|---|
| Gold (US$/oz) | US$4,474 | US$3,886 | -13.1% |
| Gold (A$/oz) | A$6,314 | A$5,737 | -9.1% |
| Copper (US$/lb) | US$6.60 | US$6.09 | -7.8% |
| AUD/USD | 0.7085 | 0.6774 | -4.4% |
At release on 17 Aug 2026, gold was US$4,473.7/oz (A$6,314/oz). It is now US$3,886.3/oz (A$5,737/oz), down 9.1% in A$ since release. The reserve assumes A$5,500/oz, which was well below release-day spot and sits about 4% below spot now, while the A$4,800/oz long-term deck sits further below. Margins against Fletcher costs are not disclosed, so no margin conclusion can be drawn. The A$ fell 4.4% against the US$ and the US dollar index rose 3.8%, US 10-year yields rose to 5.15%, copper fell 7.8% and silver fell 25.7%. Sector mood weakened: GDX fell 11.2%, GDXJ 17.7% and COPX 20.7%, while XGD fell 2.1% and the S&P/ASX 300 Metals and Mining index fell 8.8%.
Against WGX's own history
DrillScore has no earlier Fletcher intercepts, reserves or capital raisings on record. Westgold's previous analysed release was 5 Aug 2026, a A$22M Cue mill upgrade to 1.7Mtpa with a scoping study showing 1.1-1.3Moz life-of-mine gold, scored 66 (Strong). This release does not link the two. DrillScore's database shows cash of A$939m and undrawn facilities of A$600m at 30 June 2026. Compared with the June 2025 Fletcher MRE, Indicated ounces are materially higher.
Risks & caveats
- Reserve value cannot be judged from this release because the Pre-Feasibility Study economics are not disclosed.
- Fletcher still holds 1.472Moz of Inferred resource that is outside the reserve.
- Westgold is re-sequencing its approved 2.6Mtpa Higginsville expansion towards a 4Mtpa case, which may extend the period at 1.6Mtpa, with no quantified effect on production.
- Fletcher ore is to be hauled to Higginsville, so the reserve depends on processing capacity whose timing has now changed.
- Gold, silver and copper prices and gold miner shares have fallen since the release, which affects how the market values the news.
What's next
- Completion of the Higginsville 4Mtpa expansion study - Toward the end of FY27, as stated
- Underground mass haulage study for Fletcher - Expected to be completed in H2 FY27, as stated
- Next Strategic Outlook with a preliminary 4Mtpa assessment and indicative timing - Early September 2026, as stated (now past, not verified)
- NI 43-101 technical report for the maiden Ore Reserve filed on SEDAR+ - Within 45 days of 18 August 2026, as stated
- Continued drilling of the northern Fletcher extension and start of Mason drilling results - Not stated
Questions worth asking
- What are the Fletcher Pre-Feasibility Study NPV, IRR, initial and sustaining capital and operating costs, and how do they change with the gold price?
- How much of the 1.258Moz Indicated increase came from new drilling, and how much from reclassifying Inferred ounces that fell by 0.558Moz?
- What is the gc_au optimisation field used in the Deswik run, and does it match the Mineral Resource grade?
- How many ounces and how much production timing change result from deferring the 2.6Mtpa Higginsville stage, and what is the effect on Group output?
- When will the NI 43-101 technical report be filed, and will it give metallurgical recovery figures for the gold process?
What it means
For someone following Westgold, this release is a substantive step. Fletcher has moved from a resource to a maiden Ore Reserve of 1.145Moz, which adds a sizeable mineable inventory at Beta Hunt. The release does not yet show what that inventory is worth, because reserve economics, capital costs and the effect of the revised Higginsville sequencing are not given. The NI 43-101 report and the 4Mtpa study are the next places to test those points. This is general information, not personal financial advice.
General information only - not financial advice. DrillScore's analyses are produced automatically by an AI model (Claude, by Anthropic) from the company's own ASX announcement and public market data, and scored by a fixed formula (how it works). They can be wrong or incomplete, don't consider your objectives or circumstances, and are not a recommendation to buy, sell or hold anything. Always read the original announcement and consider advice from a licensed adviser.
Decoded 15 Nov 2026, 8:17 am by claude-haiku-5-5 - confidence: high. Spotted a mistake? Tell us.
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