Highlights

  • ActivEX reported laboratory results from 99 soil samples and seven rock-chip samples collected at Aramac in August 2026.
  • Sampling examined approximately 8 kilometres of a geological trend the company believes extends for around 55 kilometres.
  • Soil readings included cobalt up to 48 ppm, zinc up to 313 ppm and barium up to 1,930 ppm.
  • Mineralogy from one gossan sample identified small amounts of rare earth-bearing phosphate minerals.
  • Further sampling, mapping, geophysics and potential drilling remain at the planning stage.

ActivEX Limited (ASX:AIV) is a mineral exploration company assessing prospective ground in Queensland, including the Aramac project in the state’s central region. Its 3 November 2026 exploration update presented the first laboratory geochemical results from a field programme targeting a prominent scarp near the Dunns Road prospect. The findings are preliminary and do not establish an economic deposit.

First-Pass Soil Sampling Defines a Wider Exploration Question

ActivEX Limited (ASX:AIV) collected 99 soil samples and seven rock-chip samples between 18 and 21 August 2026. The programme covered approximately 8 kilometres north and south of Dunns Road within exploration permits EPM 28644 and EPM 28645. The company considers the associated geological scarp potentially traceable for about 55 kilometres, meaning most of the interpreted trend remains untested by this sampling programme.

Metal Readings and Early Rare Earth Evidence

The announcement reported iron concentrations of 7–9% in soils around Dunns Road, alongside manganese of 800–1,500 parts per million (ppm), barium of 400–1,930 ppm, cobalt of 25–48 ppm and zinc of 150–313 ppm. Sample ARAS036 recorded the highest reported barium value of 1,930 ppm. Sample ARAS085 returned the peak cobalt and zinc readings of 48 ppm and 313 ppm, respectively.

The seven rock-chip samples came from goethitic gossan, an iron-rich weathered material, largely around Dunns Road. The tabulated rock results showed iron concentrations between 29.4% and 56.9%. Although gold analysis was requested, the update did not report gold results. ActivEX Limited (ASX:AIV) also did not quantify regional background levels, limiting conclusions about the relative strength of the soil responses. Some rock-chip ranges in the announcement’s narrative differed from its results table, so the tabulated figures Warrant particular attention.

Mineralogical analysis of a single gossan sample found that iron oxides and hydroxides accounted for approximately 94.9% of the material by weight. Small quantities of rare earth-bearing phosphate minerals, including monazite, xenotime and crandallite-group phosphates, were identified. The grains were generally very fine, commonly below 12 microns. These observations indicate mineral presence in one specimen, not a defined rare earth grade, resource or recoverable product.

Geological Context and Proposed Follow-Up

Aramac lies within the Eromanga Basin. The investigated scarp is associated with the Doncaster Member of the Wallumbilla Formation, including mudstone, siltstone and glauconitic sandstone. Gossan exposures occur near its base, while colluvium covers bedrock in other areas. This setting helps explain why ActivEX Limited (ASX:AIV) intends to combine geochemical sampling with geological and regolith mapping rather than rely on isolated assays.

The company has outlined further surface sampling along the interpreted 55-kilometre trend, additional rock sampling and a drone magnetic survey near the scarp base. Proposed aircore drilling would investigate the soil trend, with some deeper holes contemplated around the gossan. These activities were still being planned when the November update was issued, and no firm commencement dates were provided. There were no drill intercepts or mineral resources reported from Aramac in the announcement.

Key Insights

ActivEX Limited (ASX:AIV) has established a preliminary geochemical picture across a limited portion of Aramac. The reported soil metal values and mineralogical observations provide targets for further investigation, but their significance depends on confirming geological continuity, grade and scale. Planned fieldwork and possible drilling will be important in determining whether the broader scarp contains more substantial mineralisation.