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GREAT SOUTHERN MINING LIMITED — Investor Relations & Filings

Ticker · GSN ISIN · AU0000017543 LEI · 529900NIX6WY9XSLND23 ASX Mining and quarrying
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Filings indexed 747 across all filing types
Latest filing 2026-03-10 Investor Presentation
Country AU Australia
Listing ASX GSN

About GREAT SOUTHERN MINING LIMITED

https://gsml.com.au/

Great Southern Mining Limited focuses on the exploration and development of gold and base metal assets. The company manages a portfolio of projects including the Duketon Gold Project, located in a significant greenstone belt, and the East Laverton Project, which targets nickel and gold mineralization. It also oversees the Edinburgh Park Project, a large-scale exploration area prospective for copper-gold porphyry and epithermal systems. Core activities involve systematic geological mapping, geochemical analysis, geophysical surveys, and multi-stage drilling programs aimed at resource definition. The company utilizes modern exploration technologies and historical data integration to identify high-grade mineralization and advance its project pipeline toward potential development.

Recent filings

Filing Released Lang Actions
121 Mining Investment Conference Presentation 17 pages 4.2MB
Investor Presentation Classification · 95% confidence The document is a detailed presentation from Great Southern Mining Limited dated March 2026, containing extensive information about exploration projects, drilling results, mineral resources, and company facts such as share structure and market capitalization. It includes forward-looking statements, disclaimers, and technical data related to mineral exploration and resource estimates. The document is structured as a presentation with multiple slides and images (omitted here), focusing on exploration results and company projects rather than financial statements or regulatory filings. There is no indication that this is an annual report, earnings release, or regulatory filing. The presence of detailed project data, exploration results, and company overview aimed at investors aligns with the definition of an Investor Presentation (IP). The document length (15,000 characters) and content confirm it is the presentation itself, not just an announcement of a report. Therefore, the appropriate classification is Investor Presentation (IP).
2026-03-10 English
Half Yearly Report and Accounts 41 pages 5.2MB
Interim / Quarterly Report Classification · 100% confidence The document is titled 'Interim Financial Report For the Half-Year Ended 31 December 2025' and contains detailed financial statements such as the condensed consolidated statement of profit or loss, financial position, cash flows, and changes in equity. It also includes a Directors' Report, Auditor's Independence Declaration, and an Independent Auditor's Review Report. The presence of comprehensive financial data and analysis for a half-year period clearly indicates this is a financial report for a period shorter than a full fiscal year. Therefore, this document fits the definition of an Interim / Quarterly Report (IR). The document length is substantial (15,000 characters), and it contains actual financial statements, not just an announcement or certification, so it is not a Report Publication Announcement or Regulatory Filing. H1 2026
2026-03-05 English
EIS CO-FUNDED DIAMOND DRILLING UNDERWAY 9 pages 1.7MB
Capital/Financing Update Classification · 95% confidence The document is an ASX announcement dated 4 March 2026 from Great Southern Mining Ltd (GSN) detailing the commencement of co-funded diamond drilling under the Western Australian Government's Exploration Incentive Scheme (EIS). It provides technical details about the drilling targets, project locations, and expected outcomes. The content focuses on exploration activities, drilling plans, and geological context rather than financial results, management changes, or regulatory compliance. There is no indication that this is a financial report, earnings release, management discussion, or any other regulatory filing type. It is a detailed operational update on exploration activities, which fits best under the category of a Capital/Financing Update (CAP) because it relates to funding and progress of exploration projects supported by government grants. The document length and detail confirm it is not a brief announcement or a report publication notice. Therefore, the most appropriate classification is CAP with high confidence.
2026-03-03 English
Notification regarding unquoted securities - GSN 6 pages 19.0KB
Share Issue/Capital Change Classification · 100% confidence The document is titled 'Appendix 3G - Notification of issue, conversion or payment up of unquoted equity securities' and details the issuance of unquoted securities under an employee incentive scheme by Great Southern Mining Limited. It includes specifics such as the number of securities issued, issue dates, and terms related to performance rights. The content is a formal notification of a securities issue rather than a financial report or earnings announcement. This fits the category of a Share Issue/Capital Change announcement, as it reports on new securities issued and changes in capital structure. The document length (6595 characters) and detailed issuance data confirm it is not a brief announcement or a report publication notice but a substantive capital change notification.
2026-02-23 English
HIGH IMPACT DRILLING AT MON AMI GOLD PROJECT 16 pages 1.8MB
Capital/Financing Update Classification · 95% confidence The document is an ASX announcement dated 19 February 2026 from Great Southern Mining Limited (ASX: GSN) providing an update on exploration activities and development potential of the Mon Ami Gold Project. It includes detailed information about drilling plans, mineral resource estimates, geological interpretations, and potential development opportunities. The content focuses on exploration results, resource expansion, and project updates rather than financial results or regulatory filings. It is not a full annual or interim report, nor is it a call transcript or management discussion. The document is a detailed operational update typical of a Capital/Financing Update or exploration project update. Given the nature of the content—exploration and project development update with no financial statements or earnings data—the most appropriate classification is Capital/Financing Update (CAP).
2026-02-18 English
GOLD MINERALISATION EXTENDED TO 3.5KM AT GOLDEN BOULDER 15 pages 1.5MB
Regulatory Filings Classification · 95% confidence The document is an ASX announcement dated 16 February 2026 from Great Southern Mining Limited (ASX: GSN). It details the results of a reverse circulation (RC) drilling program at the Golden Boulder discovery, part of the Duketon Gold Project. The content includes extensive assay results, drilling locations, geological interpretations, and plans for upcoming drilling programs. The document is approximately 15,000 characters long, indicating a detailed report rather than a brief announcement. The focus is on exploration results, mineralisation extensions, and technical data related to drilling and assay results. There is no indication that this is a financial report, earnings release, management discussion, or regulatory filing. It is not a proxy, voting result, or capital change announcement. The document is a detailed operational update on exploration activities and results, typical of an exploration or project update announcement. Given the nature of the content and the ASX announcement format, this fits best under the category of a Regulatory Filing (RNS) as a general regulatory announcement and exploration update that does not fit into other specific financial or governance categories.
2026-02-15 English

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