Highlights

  • Southern Star drilling confirmed thick high-grade gold open in all directions within WA's Laverton tectonic zone.
  • The Duketon project sits within 40 kilometres of Regis Resources' Garden Well and Rosemont milling complexes.
  • Historical Cox's Find underground workings produced gold at an exceptional average grade exceeding 21 g/t.
  • GSN secured non-dilutive co-funding through the WA Government's Exploration Incentive Scheme.

Great Southern Mining (ASX:GSN) is drilling into the Duketon Belt and finding exactly what the geological models predicted — thick, high-grade gold that remains open in all directions at Southern Star, a deposit sitting within 40 kilometres of two of Western Australia's most productive operating gold mills.

Southern Star: Grade and Continuity Confirmed

Drilling across the flagship Southern Star deposit within WA's Laverton tectonic zone has delineated continuous zones of thick, high-grade gold mineralisation extending from near-surface to significant depths. Reverse circulation and diamond core assays confirmed that the mineralised quartz-dolerite host unit remains open in all directions, demonstrating strong geological continuity along strike and down plunge.

Systematic structural logging and oriented drill core analysis revealed high-grade plunging shoots within the broader mineralised shear corridor, providing clear vectoring for ongoing extensional drilling designed to rapidly expand the JORC-compliant resource inventory.

Infrastructure Edge: 40km from Major Mills

The Duketon Gold Project holds a profound strategic advantage, situated within a 40-kilometre trucking radius of Regis Resources' Garden Well and Rosemont milling complexes. In an era of elevated capital equipment costs, proximal milling infrastructure enables junior developers to pursue capital-light toll-treatment or joint-venture development agreements that eliminate multi-million-dollar processing construction capital.

Gold is GSN's primary corporate focus, offering pure-play leverage to record Australian-dollar gold bullion pricing and compelling economic support for near-surface open-pit developments.

Cox's Find and Queensland Pipeline

GSN is also advancing exploration at the historic Cox's Find project, where underground workings historically produced gold at an exceptional average grade exceeding 21 grams per tonne. Beyond Western Australia, GSN holds the Edinburgh Park copper-gold-silver epithermal project in North Queensland, situated in a major porphyry corridor.

GSN shares traded at $0.022 on 2 October 2026 with 4,461 shares changing hands, establishing a market capitalisation of $25.73 million — a 26.67% decline over 12 months. The company secured non-dilutive co-funding through the Western Australian Government's Exploration Incentive Scheme to support drilling.

Exploration and Financing Risks

Mineral exploration involves inherent geological uncertainty — step-out drilling may encounter structural dislocations or lower-grade intervals that fail to meet resource modelling expectations. As an exploration company without operating cash flow, GSN relies on external equity financing or commercial partnerships to sustain drilling.

Delays in securing toll-treatment arrangements, negotiating native title land access agreements, or protracted mining lease permitting could extend development schedules. General mining cost inflation across Western Australian fuel, labour, and drilling contractors also remains an ongoing challenge.