Great Southern Mining Limited - UP TO $337.5K EIS FUNDING GRANTED FOR TWO PROJECTS

About this update from Great Southern Mining Limited

Great Southern Mining Limited ('GSN' or the 'Company') is pleased to announce that it has been awarded up to $337,500 in Round 32 of the Western Australian State Government's Co-Funded Exploration Drilling Program, part of the Exploration Incentive Scheme (EIS). The co-funded drilling grant was independently assessed through a competitive application process with only 39 successful applications. The EIS is noted for awarding grant funding to high quality projects with technical merit and provides funding to enable the testing of exploration concepts and the use of new exploration technologies. The Company was successful in securing two co-funding grants. The first will support drilling to test depth extensions, as well as the stratigraphic and key structural controls, to known gold mineralisation within the Golden Boulder area of the Duketon Gold Project ('Duketon'). The second grant will co-fund a diamond drill hole into geophysically defined stratigraphic horizons prospective for PGE and base metal mineralisation within the Diorite Hill layered intrusive complex ('Diorite Hill'), part of the Company's East Laverton Project . GSN's Managing Director, Matthew Keane , commented: 'This EIS funding supports important exploration advancements at GSN's Duketon Gold and East Laverton projects. 'To date, GSN has rarely drilled beyond 200 metres at the Duketon Gold Project . The two co-funded diamond holes in the Golden Boulder area will be critical in defining the stratigraphic and structural controls on the high-grade gold mineralisation defined near surface. 'At East Laverton, a single diamond hole at Diorite Hill will test several dense stratigraphic horizons that seismic and magnetic surveys have shown do not propagate to surface. GSN's geological team has likened these target horizons to the Merensky Reef of the Bushveld Complex in South Africa , known for its rich platinum mineralisation.' Ogilvies Prospect Up to $220,000 in grant funding has been secured for two diamond holes at the Ogilvies prospect, part of the Golden Boulder target area, within the Duketon Gold Project . Major gold deposits in the Duketon Gold Belt most commonly occur directly on the first-order (mantle tapping) structures. The Golden Boulder area sits within a prominent structural trend comprising several gold bearing faults, including the interpreted first-order Rosemont Fault which hosts several gold occurrences including the Rosemont, Baneygo, Ben Hur and Southern Star deposits (all located on Regis Resources tenure). Integration of geophysical datasets, including a reprocessed and reinterpreted Geoscience Australia regional seismic line, indicates that these first-order shears are mantle-tapping structures, capable of transmitting gold-bearing fluids from depth to surface. Gold deposition is favoured where these fluids encounter chemically reactive lithologies or dilation zones created by structural flexures. Fluid leakage from deeper deposits may generate surface anomalies along shear outcrops. This is witnessed in the Golden Boulder area where at least three lines of mineralisation have been defined to date. Importantly, a structural flexure has been recognised at Ogilvies where the shear intersects quartz-dolerite intruding rocks into the ultramafic-sedimentary country rock. This setting is considered highly favourable for significant gold mineralisation. This program will provide the first deep geological, stratigraphic and structural data across the Rosemont Shear within GSN's tenure, providing invaluable information which can be applied to belt-wide exploration. Diamond drilling will comprise two holes, for up to 1,600 meters, drilled towards the west and aimed at intersecting multiple structures including the Rosemont Shear. Earlier exploration by Aberfoyle Resources Limited , Placer Dome Inc. and others was shallow and ineffective, relying on soil geochemistry and shallow drilling that failed to penetrate below transported cover. Subtle Pt-Pd anomalism was identified, but key stratigraphic positions remain untested. Importantly, while relatively shallow, the prospective reflective horizons do not propagate to surface, rendering them blind to previous exploration methods. This program represents the first systematic attempt to test Diorite Hill for PGE reefs. The proposed program will comprise an RC pre-collar to 120 m, followed by 780 m of oriented diamond core to directly test Units A and B. The Company would like to thank the Western Australian Government for its continued support of the exploration industry through the Exploration Incentive Scheme. About Great Southern Mining Great Southern Mining Limited is a leading Australian listed exploration company. With significant land holdings in the world-renowned mining districts of Laverton in Western Australia and Mt Carlton in north Queensland , all projects are located within 40 km of operating mills and major operations. Contact: Matthew Keane Managing Director Email: [email protected] Tel: +61 8 9240 4111 (C) 2025 Electronic News Publishing, source ENP Newswire

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