Great Western Exploration has identified zinc-silver-lead mineralisation on the interpreted outer edge of a potential VHMS system at Seymour, near DeGrussa. The company is accelerating permitting for follow-up drilling, although its A$2.35 million cash balance covers an estimated 2.33 quarters at the reported spending rate.
- Seymour intercepts include 12m at 0.33% zinc, 7g/t silver and 0.09% lead
- Great Western believes the hotter copper-gold core remains untested
- Follow-up drilling and airborne magnetics and down-hole EM are planned
- Quarter-end cash fell to A$2.348 million, equal to 2.33 quarters of estimated funding
- McKinlay acquisition requires non-associated shareholder approval on 2 November
Seymour points towards an untested copper-gold centre
Great Western Exploration Limited (ASX:GTE) has found the sort of geological clue it was looking for at Seymour: zinc, silver and lead mineralisation interpreted as the cooler outer margin of a volcanic-hosted massive sulphide system. The company believes the higher-temperature copper-gold core may be nearby, but that central target remains untested.
The first drilling produced a 12-metre intercept grading 0.33% zinc, 7 grams per tonne silver and 0.09% lead from 77 metres in hole 26GJGRC006. That interval included one metre at 1.02% zinc and two metres at 20g/t silver. A second hole returned 5 metres at 0.22% zinc, 2g/t silver and 0.15% lead from 98 metres.
The results extend the story reported in the Seymour zinc-silver drilling, which identified a similar outer-edge signature and left the potential copper-gold core unresolved. Great Western says the mineralisation occurs with 1% to 5% sulphides between shale and mafic volcanic rocks, a setting it interprets as favourable for VHMS development. Seymour is about 70 kilometres from Sandfire Resources’ (ASX:SFR) DeGrussa and Monty copper-gold VHMS deposits.
Permitting now stands between Seymour and the next test
Great Western plans follow-up reverse-circulation drilling north and south of the two mineralised holes, alongside airborne infill magnetics and potentially down-hole electromagnetic surveys. The stated aim is to refine the geological model and target the interpreted copper core. The company is progressing the permits required for that work, so the timing of the next material result will depend partly on approvals.
The broader Juggernaut campaign tested six copper-gold targets with 17 shallow holes for 2,160 metres. No economic intercepts were returned from the other targets, leaving Seymour as the clear focus of the next phase. At Baroo, two shallow holes intersected a mapped quartz vein and returned narrow copper zones of 1 metre at 0.2% copper and 1 metre at 514 parts per million copper; further drilling is planned, with the company interpreting potential for stronger mineralisation at depth.
Cash supports exploration, but leaves limited room for delay
Great Western ended September with A$2.348 million in cash and no financing facilities. Exploration and evaluation expenditure was A$767,000 for the quarter, while net operating cash outflow was A$290,000. On those outgoings, the company calculated estimated funding of 2.33 quarters, a figure that places a practical limit on how long the current exploration pace can continue without new funding or a change in spending.
Lake Way adds a second near-term data point. Great Western has commenced drilling two monitoring bores at its potash project, immediately south of and downstream from the paleochannel associated with SO4’s Lake Way operation. The work is intended to define the channel, potassium content and aquifer characteristics, with results anticipated during the December 2026 quarter.
McKinlay vote carries related-party and tenure conditions
Shareholders will vote on 2 November on the proposed staged acquisition of the McKinlay Project in Queensland, following the McKinlay farm-in agreement announced earlier this year. Great Western could earn 51% by spending A$500,000 and completing other conditions, increase its interest to 80% with a further A$2 million of exploration expenditure, and acquire the final 20% for between A$1 million and A$2 million in cash or scrip at its discretion. The transaction is a substantial related-party matter because Great Western managing director Shane Pike owns 50% of Moffat Resources, the vendor, although the company says independent directors negotiated the deal and Mr Pike abstained.
The acquisition also carries a separate tenure risk: the project’s first five-year term expires on 28 February 2027, when 50% relinquishment is required, and there is no assurance the relevant sub-blocks will be retained or re-granted. Meanwhile, forfeiture applications over five Great Western tenements are due to be mentioned in the Wardens Court in December. Seymour may have supplied the quarter’s most encouraging geological signal, but the next proof point is still beneath the drill bit, and the company’s cash buffer is not especially long.
Bottom Line?
Seymour has produced a credible exploration lead rather than an economic discovery. The key catalysts are permitting, follow-up copper-gold drilling and the December potash results, while the 2.33-quarter funding estimate keeps capital discipline firmly in view.
Questions in the middle?
- Will follow-up drilling locate the interpreted higher-temperature copper-gold core at Seymour?
- Can Great Western fund accelerated Seymour, Baroo and Lake Way work at the current cash-consumption rate?
- Will shareholders approve the McKinlay transaction, and how much tenure will ultimately remain available for the earn-in?