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SUNSTONE METALS LTD — Investor Relations & Filings

Ticker · STM ISIN · AU000000STM0 LEI · 984500E914B742B57B71 ASX Mining and quarrying
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Filings indexed 1,332 across all filing types
Latest filing 2026-05-20 Regulatory Filings
Country AU Australia
Listing ASX STM

About SUNSTONE METALS LTD

https://www.sunstonemetals.com.au/

Sunstone Metals Ltd specializes in the exploration and development of gold and copper assets, with a primary focus on high-potential porphyry and epithermal systems. The company’s core operations are centered on the Bramaderos Gold-Copper Project and the El Palmar Copper-Gold Project. Bramaderos encompasses several gold-copper porphyry and epithermal targets, while El Palmar represents a significant copper-gold porphyry discovery. Sunstone Metals employs systematic exploration techniques, including geophysical surveys and diamond drilling, to delineate mineral resources and evaluate the economic potential of its discoveries. The company prioritizes the identification of large-scale mineral systems within under-explored geological belts to drive asset growth and resource definition.

Recent filings

Filing Released Lang Actions
Drilling continues to intersect mineralisation 17 pages 9.3MB
Regulatory Filings Classification · 82% confidence The document is an ASX announcement detailing exploration drilling results, assay data, and geological updates for the Bramaderos project. It is not an earnings release (no period‐end financial results), not a management change or M&A notice, and contains substantive exploration information rather than proxy materials or a report attachment. It therefore falls into the general category of a regulatory announcement to the ASX, which we classify under Regulatory Filings (RNS).
2026-05-20 English
Application for quotation of securities - STM 6 pages 18.2KB
Share Issue/Capital Change Classification · 92% confidence The document is an ASX “Appendix 2A – Application for quotation of securities,” detailing the conversion of options into ordinary shares, the number of securities to be quoted, issue dates, and the resulting capital structure. It is an announcement of a share issue/capital change under ASX Listing Rules, not a full financial report or dividend notice. Therefore, it is classified as a Share Issue/Capital Change (SHA).
2026-05-20 English
Drilling returns more large intersections at Bramaderos 18 pages 16.7MB
Regulatory Filings Classification · 75% confidence The document is an ASX announcement detailing operational drilling results, exploration intersections, and project updates for the Bramaderos gold–copper project. It does not present financial statements, voting or governance materials, financing or capital notices, or any formal report sections (e.g., an annual or interim report). Nor is it a presentation slide deck or a proxy statement. It is a regulatory announcement of exploration results, which does not fit any more specific category. Therefore it should be classified as a general regulatory filing (RNS).
2026-05-13 English
Retraction announcement of scoping study 1
Regulatory Filings Classification · 85% confidence The document is an ASX announcement retracting prior forward‐looking statements in a scoping study. It does not contain financial statements, dividend notices, management changes, M&A, or ESG content; nor is it the actual scoping study report. It is a regulatory announcement/correction that does not fit any more specific category, so it falls into the general Regulatory Filings (RNS) bucket.
2026-05-10 English
Response to ASX Query Letter 5 pages 522.2KB
Regulatory Filings Classification · 95% confidence The document is a formal response letter from Sunstone Metals Limited to the ASX Compliance regarding an ASX Aware Letter about share price movements and disclosure obligations under ASX Listing Rules 3.1 and 3.1A. It discusses the timing and nature of the release of material information related to a scoping study for the Bramaderos Project. The document is correspondence related to regulatory compliance and continuous disclosure obligations rather than a financial report, earnings release, or other substantive financial document. It does not contain financial statements, audit information, or detailed management discussion. It is a regulatory compliance communication and thus best classified as a Regulatory Filing (RNS). The document length (9715 characters) and content confirm it is not a brief announcement or a report publication announcement but a detailed regulatory response letter.
2026-05-04 English
Drilling continues to extend Bramaderos mineralisation 18 pages 11.8MB
Regulatory Filings
2026-05-03 English

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