The survey work provided new insights into the geometry of the mineralised system, returning elevated chargeability responses immediately west of the known Silver Valley workings alongside comparable responses towards the western ends of the two southern survey lines. Deeper low-resistivity zones identified on the southern lines may be mapping underlying geological structure and will be incorporated into a revised structural interpretation.

New rock chip samples collected from historical workings and dumps at Silver Valley generated standout assays of up to 470g/t silver, 19.2% copper and 23.2% lead in sample SV2_06, and 342g/t silver, 16.1% copper and 36.8% lead in sample SV2_08. These figures compare with previously reported rock chip sampling announced in April 2026, which yielded up to 378g/t silver, 44.9% lead and 5.04% copper.

Field reconnaissance indicates that the relatively modest IP responses observed in the initial survey are consistent with the local style of mineralisation. Galena, which hosts much of the lead and associated silver, is conductive but typically produces a weaker chargeability response than other sulphides such as pyrite, meaning significant silver-lead mineralisation can be present without generating a dominant IP anomaly.

“The value of these first three IP lines is that they have challenged our original interpretation and given us a better basis for the next phase of work. Rather than continue spending money against a survey design that may no longer be optimally positioned, we made the decision to stop, integrate the data and investigate the western side of the system before completing the program.”

— Matthew Pustahya, Managing Director

The emerging western chargeability responses and deeper resistivity features may be pointing towards an important structural control that was not adequately covered by the original survey footprint. Rather than extending the current survey design, Litchfield is pausing further IP surveying to allow the geological team to test the interpretation in the field and use those observations to optimise the remaining lines.

This exploration work forms part of the company's broader operational schedule, which also encompasses operations at the Oonagalabi project within the Harts Range tenements. Litchfield participates in the BHP Xplor program, which has reframed its Harts Range ground, including Oonagalabi, as part of a district-scale mineral system. Final assay results from the Q3 drilling campaign at Oonagalabi, specifically from drill hole OGDD003, yielded a best intercept of 5.3 metres at 0.64% copper, 0.67% zinc and 2.2g/t silver from a depth of 49.5 metres.

Litchfield plans to complete ongoing magnetotelluric and gravity programs at its Oonagalabi tenement before redeploying field teams to Silver Valley. Once field resources return to Silver Valley, the team will complete targeted field mapping and structural investigation west of the existing IP footprint, integrating those findings with the completed chargeability and resistivity models to support the revised IP program.

Read the full announcement: Silver Valley IP Survey identifies Western Anomalies