St George Mining Limited reported on the high-impact exploration programmes underway at the Company's regional-scale projects in Western Australia. Paterson Copper-Gold Project - diamond drilling supports discovery potential: Diamond drilling at the 100%-owned Paterson Project commenced in May to test basement rocks for the potential of large copper/gold systems. Two drill holes have been completed to date - PDD001 and PDD002 - to depths of 265m and 289.2m, respectively. Basement lithologies intercepted so far are a series of high-grade meta-sediment host rocks that are considered part of the Yeneena Basin package which hosts several known deposits within the Paterson Province.

Intense localised alteration surrounding multiple sets of cross-cutting veins have been observed in the drill core, indicating structural complexity and the fact the rocks have been exposed to hydrothermal fluids. Disseminated sulphide mineralised zones of up to 10% sulphide content have been logged in PDD002 within several zones throughout the hole including at 267m depth where pyrite (iron sulphide) and chalco-pyrite (copper sulphide) have been observed. These observations are confirmed by handheld XRF but should be considered qualitative only pending laboratory assays.

Drilling is continuing to focus on the two priority target areas 1 and 2 where anticline structural folds and internal granitic domes have been interpreted - these are textbook trap sites for mineralisation. With only two holes completed and wide spacing between holes, St George is strongly encouraged about the remainder of the drill programme which includes targets in highly prospective locations. The drill hole in progress - PDD003 - is located further towards the fold nose.

Descriptions of the amounts of metal sulphide observed and logged in the core are qualitative, visual estimates made by geologists on site and are listed in order of abundance of estimated combined percentages of pyrite (iron sulphide) and chalco-pyrite (copper sulphide). Laboratory assays from Bureau Veritas in Perth are expected within 6-8 weeks and required to confirm the metal content (if any) in the drill core. Visual estimates of sulphide material should not be considered a substitute for laboratory analysis, which is required to determine grade and widths for geological reporting.

Also, visual estimates potentially provide no information regarding potential impurities or deleterious physical properties of the mineralisation. Processing, including detailed logging, of the core for PDD001 and PDD002 is in progress. Mt Alexander - new priority drill targets emerging: Geophysical surveys have been designed to assist in generating drill targets for the next drill programme at Mt Alexander, which is scheduled to commence in late July 2022.

T A new seismic survey, to extend the successful 2021 survey, has been completed with 13-line kilometres; Key areas covered by the survey include the granite/greenstone contact and the Radar Prospect. The interpreted contact and related structures between the Mt Alexander greenstone belt and the granites is considered prospective for mineralisation and is a setting that is known to host high-grade nickel in other parts of the Yilgarn Craton. Radar is located in the eastern extension of the Cathedrals Belt which is underexplored.

The survey will aim to build on the structural information and interpretations in this area. The Radar mineralised intercepts include MAD152 which returned 4.0m @ 3.0%Ni, 1.1% Cu, 2.2g/t PGE from 48m with very little follow-up exploration. Processing and modelling of the seismic data is in progress with external consultants at Rock Solid Seismic, and results are expected ahead of the start of the July drill programme.

A ground-based MLEM survey commenced at Mt Alexander last week and is expected to be completed within three weeks. The survey is using an ARMIT sensor, specially designed to operate with lower noise levels than other EM technologies. This makes the ARMIT sensor more effective in surveying areas with conductive cover and potentially able to penetrate to deeper levels below surface.