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S2 Resources unlocks Jillewarra gold drilling as Warraweena program begins

Mining By Maxwell Dee 5 min read

S2 Resources has secured heritage and drilling approvals for two Jillewarra gold targets, while diamond drilling is now underway at Warraweena’s T37 prospect. The explorer ended September with A$17.35 million in cash and a further A$5.24 million Valkea Resources stake.

  • Jillewarra approvals unlock RC drilling at Western Trend and Margueritta South
  • Warraweena diamond drilling starts at T37 before Lilyfield copper holes
  • Loch Lilly drilling permits approved and trial MIP survey completed
  • A$17.35 million cash balance and 15.17 quarters of funding at reported burn rate
  • Jillewarra earn-in deadline extended to 3 July 2027

Jillewarra approvals move two gold targets towards drilling

S2 Resources Ltd (ASX:S2R) has cleared a significant permitting hurdle at its Jillewarra project in Western Australia, receiving heritage approval and government drilling permits for the Western Trend and Margueritta South gold prospects. Reverse circulation drilling will begin when a suitable rig becomes available, putting the next meaningful test of these targets in the hands of contractor availability rather than another round of approvals.

The targets carry encouraging but historical evidence of mineralisation. Western Trend is a 400-metre-long aircore anomaly that remains open along strike and at depth, including a previous 4-metre intercept grading 4.3 grams per tonne gold. Margueritta South has identified mineralisation across roughly 300 metres, with earlier drilling returning intervals including 6 metres at 13.8 grams per tonne gold and 4 metres at 11.1 grams per tonne. These are not new results from the current quarter, and the planned RC program is intended to establish whether the shallow and limited drilling points to a more substantial system.

That progress is separate from S2’s larger reconnaissance aircore campaign across roughly 30 strike kilometres of the Karbar shear zone. Approvals cover only parts of the planned area, while a further ethnographic survey is required before the balance can be cleared. S2 said the broader program will most likely start in early 2027 if the survey is completed late this year without adverse findings. The Jillewarra earn-in period has been extended to 3 July 2027; S2 reported spending about A$3.9 million by the end of August against the A$5 million required to earn an initial 51% interest.

The permitting update is the latest step in a program that had previously been delayed while approvals were being resolved. The company’s earlier Jillewarra aircore campaign was planned across the same broader gold-bearing structure, but the current report shows the immediate focus shifting to RC testing of defined prospects while the regional aircore work remains conditional.

Warraweena drilling starts with gold and copper targets in sequence

At Warraweena in northern New South Wales, a diamond rig arrived after quarter-end and began drilling the T37 gold target on S2-owned ground. Up to five holes are planned to follow up a decades-old North Broken Hill hole that was re-assayed by S2 at 4 metres grading 0.75 grams per tonne gold. Once T37 is complete, the rig is due to move to the Lilyfield copper target for two or three holes.

Lilyfield drilling will follow a previous S2 intercept of 17 metres at 601 parts per million copper, including 1 metre at 0.12% copper. S2 expects the two-target drilling sequence to run for about two months, with T37 assays potentially arriving before the Christmas break and Lilyfield results likely in the new year. The timing leaves assay results, rather than permitting, as the next immediate test of whether the exploration spending is producing a stronger geological case.

This is the operational follow-through from the company’s earlier Warraweena drilling contractor engagement, which targeted both T37 and Lilyfield. The current filing confirms that the planned work has moved from preparation into drilling, although it does not report new assay results.

Loch Lilly permits and geophysics prepare concealed targets

In far-western New South Wales, S2 has received drilling permits for its Loch Lilly project and completed a trial magnetometric induced polarisation survey at Netley. Consultants are still processing the results, which will determine whether the technique can see through conductive cover well enough to justify extending the survey to Eaglehawk. Drilling at both prospects is planned after the geophysical work is assessed and government approvals are in place.

The targets are prospective rather than proven discoveries. Historic, widely spaced drilling at Eaglehawk and Netley encountered altered porphyritic rocks, while Netley returned a broad 73.3-metre interval at 0.03% copper, including 0.6 metres at 0.11%. S2 is earning up to 75% of the Loch Lilly-Kars project, which covers about 100 kilometres of an underexplored belt and includes additional concealed targets beyond Eaglehawk and Netley.

Cash position leaves room for a heavier drilling quarter

S2 ended September with A$17.35 million in cash after net operating outflows of A$1.14 million during the quarter. Planned cash outflows for the December quarter are about A$2.6 million, although permitting delays and drill-rig availability could affect that figure. On the quarter’s reported cash-flow rate, the Appendix 5B calculates 15.17 quarters of funding, while the company’s 14.375 million Valkea Resources shares were valued at approximately A$5.24 million.

The balance sheet gives S2 scope to run several programs at once, but the next value-defining events remain field-dependent: RC rig availability at Jillewarra, the additional survey and outstanding access approvals for Karbar, and assay results from T37 and Lilyfield. At Loch Lilly, the MIP interpretation will decide whether an expensive concealed-target drilling campaign advances or waits for better evidence.

Bottom Line?

S2 has funding and several approved programs, but the investment case now turns on rigs, remaining access approvals and whether upcoming drilling converts historical anomalies into repeatable mineralisation.

Questions in the middle?

  • Will S2 secure an RC rig quickly enough to drill Western Trend and Margueritta South before the Jillewarra earn-in deadline?
  • Do T37 and Lilyfield drilling return results strong enough to justify expanding the Warraweena programs?
  • Will the Netley MIP survey demonstrate a reliable way to rank and test the concealed Loch Lilly targets?

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