Parbo completes first drilling campaign as ASX explorer awaits Brians Mill assays

Maiden Brians Mill drilling reaches the assay stage

Parbo Resources Limited (ASX:PRB) has moved from IPO to fieldwork at speed, completing its maiden aircore drilling campaign at the Brians Mill gold prospect during its first quarter as a listed explorer. The 75-hole programme covered 4,737 metres across the Brians Mill South and Brians Mill North target areas in Western Australia’s Bryah Basin.

“Brians Mill drone magnetics (TMI) showing Parbo’s 2026 AC collars, historic drilling and interpreted structures (refer ASX announcement 20261001).”

The South programme tested an interpreted demagnetised core and areas around historic gold intercepts, while the North programme was a first-pass test of a north-east trending structural corridor with no recorded previous drilling. Nineteen planned holes were not drilled because of thicker cover and remain available for potential future programmes.

Visual alteration provides an early, limited signal

Field logging at Brians Mill South identified iron carbonate-silica alteration with minor sericite, coincident with the demagnetised zone interpreted from drone magnetic data. The company said the observations were consistent with its pre-drill geological model, but they do not establish the presence, grade or width of gold mineralisation.

That distinction matters: the observation is based on visual logging of aircore chips, and laboratory assays are required before the target can be assessed properly. Samples have been sent to Intertek Genalysis in Perth, with results expected in early November. Any reverse-circulation follow-up at Brians Mill will depend on those results.

Second drilling programme opens Mount Padbury campaign

“Regional geology and major gold and copper operations, showing Parbo’s Mount Padbury and Bryah Basin Projects.”

Parbo has already started its next campaign at the Mount Padbury Gold Project, where approximately 7,500 metres of aircore drilling is underway at the Oddjob and Goldfinger targets. It is the first drilling at Mount Padbury and is designed initially to determine cover depth, confirm the interpreted greenstone sequence and test the shallow expression of a roughly 2-kilometre-wide gravity anomaly.

The company’s project package and funding base took shape through the A$5 million IPO raise, which preceded its 22 September ASX debut. Parbo raised A$5.0 million before costs at A$0.20 a share and ended the quarter with A$5.339 million in cash and cash equivalents, plus A$1.0 million in term deposits, for total cash and term deposits of A$6.339 million.

Government grant supports the next round of targets

Alongside the Mount Padbury work, Parbo has secured a A$230,000 Western Australian Exploration Incentive Scheme grant for first-pass reverse-circulation and diamond drilling at the Narracoota copper-gold prospect. The programme is aimed at testing electromagnetic and gravity anomalies for possible DeGrussa/Monty-style volcanic-hosted massive sulphide mineralisation.

For the December quarter, the company plans to receive and interpret Brians Mill assays, complete the Oddjob and Goldfinger programme, and pursue RC drilling at Brians Mill, Narracoota, Golden Eye, Oddjob and Goldfinger, subject to results and other relevant conditions. The report identifies expected Mount Padbury assays in November, making the next few weeks unusually information-rich for a newly listed explorer.

Cash position gives exploration room, but results remain decisive

“Oddjob and Goldfinger prospect magnetics (RTP 1VD) with gravity inversion density isosurfaces (refer ASX announcement 20261008).”

Parbo reported A$376,000 of exploration and evaluation expenditure during the quarter, alongside A$457,000 of net operating cash outflow. The Appendix 5B calculates estimated funding of 6.42 quarters using the period’s relevant outgoings, although that measure is based on a single quarter that included the listing and the early stages of the exploration programme.

The balance sheet therefore provides room to advance several campaigns, but it does not resolve the central exploration question. Brians Mill’s assays will determine whether the alteration and structural interpretation translate into meaningful gold results, while the Mount Padbury drilling will test whether the gravity anomaly reflects rocks associated with mineralisation or simply dense geology.