An Inferred underground Mineral Resource is reported at a PdEq cutoff of 1.5 ppm PdEq where there is sufficient volume, grade, orientation, and connectivity of blocks, below 60mRL, to warrant underground exploitation. This cut-off equates to an increased mining and treatment cost in line with underground mining methods however it must be noted that no underground optimisation work has been done. Metal price assumptions, based on 12 month calculated averages, were used for metal equivalent values: Pd ?

USD 1,600/oz, Pt - USD975/oz, Au ? USD 1,870/oz, Rh ? USD 9,420/oz, Ni ?

USD 23,800/t, Cu - USD 8,420/t Metallurgical recovery assumptions used for metal equivalent value calculations were: Pd - 82%, Pt - 78%, Au - 79%, Rh - 63%, Ni - 77%, Cu - 94% Calculation of Pd equivalent therefore simplifies to PdEq = Pd g/t + 0.580 x Pt g/t + 1.13 x Au g/t + 4.52 x Rh g/t + 4.34 x Ni % + 1.88 x Cu % Calculation of Ni equivalent therefore simplifies to NiEq = Ni % + 0.230 x Pd g/t + 0.133 x Pt g/t + 0.259 x Au g/t + 1.04 x Rh g/t + 0.432 x Cu % Metallurgical recoveries are based on limited metallurgical test work (see Galileo ASX announcement dated 20 February 2023). Although the Callisto mineralisation is consistently disseminated sulphide in style, the metallurgical test work is limited to average grades above that reported in the Resource. It is cautioned that additional metallurgical test work is required to demonstrate whether these recoveries are achievable at lower grades.

Approximately 3,800 metres of RC scout drilling was completed in September within the five-kilometre trend north of Callisto and at the Jimberlana prospect. This drilling targeted geological contacts, developed from outcrop mapping and magnetic data, interpreted as being prospective for the occurrence of mineralised sills similar to that discovered at Callisto. Assays from this drill program are currently pending and expected in October 2023.

On the 18th September 2023 Galileo announced assay results from re-analysed pulps which showed highly anomalous palladium and platinum within regolith drilling at the South Callisto prospect. Numerous Pd+Pt results above 0.1 g/t were recorded with field mapping and interpretation of magnetic data suggesting that discrete intrusive rock units, similar to that found at Callisto, occur at the South Callisto prospect. First pass drilling at South Callisto is planned to commence in late October in a campaign program which will also include new drilling within the North Callisto area.

The overall prospective stratigraphy within Galileo's Norseman Project is interpreted to include the full length of the ultramafic parent host rock to the Callisto mineralisation. This unit can be traced in outcrop and in magnetic data for over 20km. The Mission Sill is a parallel unit of ultramafic geology with very similar geochemistry to the Callisto host rock and can be traced over 12km in magnetic data and in intermittent outcrop.

Early stage anomalous aircore and RC drill results confirm the prospectivity of the Mission Sill (see ASX announcements dated 3rd July 2023 and 17th May 2021). Field mapping, interpretation of magnetic data, and geophysical IP surveying will be used to develop drill targets at the Callisto and Mission Sill prospects. Campaign drill programs using RC and diamond drill rigs will be undertaken to test for new discoveries within this highly prospective new province.