
Kuniko begins six-hole Phase 2 drilling at Commonwealth-Silica Hill in July. Phase 1 returned 84m at 2.6g/t AuEq and opened a new zone 100m beyond the existing footprint.
Impact Minerals' (ASX: IPT) joint venture partner Kuniko (ASX: KNI) has locked in July as the start date for Phase 2 diamond drilling at the Commonwealth-Silica Hill gold-silver project in central New South Wales. Victorian contractor Titeline Drilling will run the rig.
The initial plan covers six holes for a total of 1,340m. The targets sit at Silica Hill, Commonwealth Main Shaft, and Commonwealth South. Kuniko can expand the program if early results justify it.
Perth-based consultant Resource Potentials is working through a targeting review right now. The brief is to pull together historical geophysical and geochemical datasets and flag fresh targets across the broader project area.
Kuniko can earn a 51% stake in Commonwealth-Silica Hill by spending $1.5 million within two years. Spending the same amount again over the following two years lifts that to 70%.
Impact keeps a 30% free-carried interest until a decision to mine. After that point, Impact can either chip in its share of costs or let its interest dilute to 10% in exchange for a 2% net smelter royalty.
The practical effect for Impact: Kuniko funds all exploration for at least the next two years. The free-carried piece means Impact takes no cash hit during the drilling phase. The downside protection is built into the royalty conversion option if Impact chooses not to contribute later.
Phase 1 diamond drilling earlier this year hit massive and vein sulphide mineralisation in the first three holes. A new zone roughly 100m beyond Silica Hill's existing footprint was also identified.
A MobileMT airborne geophysical survey plus soil and rock chip geochemistry stretched the exploration footprint across a 4km-long conductive corridor. That corridor extends well beyond the currently defined resource.
Silica Hill: 84m at 2.6 grams per tonne gold equivalent (0.6g/t gold, 123g/t silver, 0.08% lead, 0.16% zinc) from 226m. This included:
Commonwealth South: 7.1m at 9.7g/t AuEq (8.4g/t gold and 42g/t silver) including 3.1m at 21.6g/t AuEq (18.6g/t gold and 76g/t silver).
The campaign ran at 100% success rate. All six holes intersected mineralisation.
The six planned holes target extensions at each of the three named zones. The Resource Potentials review will also generate new drill targets off the historical data, which could expand the program beyond the initial six holes.
Impact managing director Dr Michael Jones put it plainly.
"We are pleased to see Kuniko accelerating exploration drilling at Commonwealth following the successful Phase 1 program that identified significant step-outs to mineralisation, particularly at Silica Hill, and has opened a new area for drilling below the existing deposit."
He added: "We have always believed Commonwealth and Silica Hill sit atop a much larger system, and this next program will test that thesis."
Kuniko managing director Maja McGuire said the Phase 2 work was designed to capitalise on Phase 1 momentum.
"With Titeline Drilling secured and drilling scheduled to commence in early July, we are excited to continue unlocking the value of our highly prospective gold-silver project."
The 4km conductive corridor from the MobileMT survey is the structural backbone of the exploration story. Phase 1's step-out at Silica Hill sits inside that corridor. The Phase 2 holes test whether mineralisation extends along it.
If multiple mineralised zones sit at depth along the corridor, the potential resource base is significantly larger than the current footprint. The targeting review is designed to find those zones.
Gold trades above US$2,300/oz and silver has held above US$29/oz for extended stretches in 2024. The high silver component of the Commonwealth-Silica Hill mineralisation – 123g/t silver in the best Silica Hill intercept – adds leverage to silver price moves.
For a junior explorer, that price environment reduces the dilution risk of funding further work. Kuniko's earn-in commitment covers the current drilling cost. Impact's free-carried structure means no capital raise is needed for this phase.
Phase 2 drilling results are the next specific catalyst. Assays from the first holes typically land within weeks of drilling completion, likely late Q3 or early Q4 2024.
If the results confirm continuity of the high-grade zones seen in Phase 1, the project moves closer to a resource upgrade. If the step-out targets fail to deliver, the thesis rests on the existing resource and Kuniko's remaining earn-in spending.
Grade and width of Phase 2 intercepts relative to Phase 1. A repeat of 84m at 2.6g/t AuEq or better is a strong signal. Anything below 1g/t AuEq over similar widths raises questions about economic viability at depth.
Practical rule: Phase 2 is a binary test of the step-out thesis. Success opens a much larger resource target. Failure leaves the project where Phase 1 left it, with Kuniko's spending still funding the next round of work.
The project's location in central New South Wales offers established mining infrastructure and a familiar regulatory environment. That lowers a layer of jurisdiction risk that explorers in less developed regions face.
For readers tracking junior gold-silver plays, the Phase 2 program at Commonwealth-Silica Hill offers a defined catalyst with a clear success metric. The earn-in structure means Impact shareholders get exposure without cash calls during the drilling phase. The question is whether the grades hold at depth.
Prepared with AlphaScala research tooling and grounded in primary market data: live prices, fundamentals, SEC filings, hedge-fund holdings, and insider activity. Each story is checked against AlphaScala publishing rules before release. Educational coverage, not personalized advice.