Skip to main content
MACARTHUR MINERALS LIMITED logo

MACARTHUR MINERALS LIMITED — Investor Relations & Filings

Ticker · MIO ISIN · AU0000062440 LEI · 549300JCF6SNVZGJMH30 ASX Mining and quarrying
Open in API
Filings indexed 522 across all filing types
Latest filing 2026-04-28 Major Shareholding Noti…
Country AU Australia
Listing ASX MIO

About MACARTHUR MINERALS LIMITED

https://macarthurminerals.com/

Macarthur Minerals Limited is an exploration and development company focused on high-grade iron ore projects. The company's flagship asset is the Lake Giles Iron Project, which comprises the Ularring hematite project and the Moonshine magnetite project. These projects are designed to produce high-grade iron ore concentrates for the global steel industry, emphasizing premium products with low impurities to support efficient and lower-emission steelmaking processes. Beyond its primary iron ore focus, the company maintains a portfolio of exploration interests in other mineral commodities, including lithium and gold. Macarthur Minerals is dedicated to advancing its mineral resources through technical studies and strategic development to transition from an explorer to a producer of high-quality mineral products.

Recent filings

Filing Released Lang Actions
Form 604 Change in Substantial Holding (Copulos Group) 2 pages 82.1KB
Major Shareholding Notification Classification · 100% confidence The document is a Form 604 under the Corporations Act 2001, specifically a Notice of change of interests of a substantial holder. It details changes in voting power and relevant interests of a substantial shareholder in the company Macarthur Mineral Limited. This type of filing is a notification of changes in significant share ownership levels, which corresponds to the category Major Shareholding Notification (MRQ). The document length is 4277 characters, which is consistent with a detailed notification rather than a brief announcement or a full report. There is no indication of financial statements, management discussion, or other report types. Therefore, the correct classification is MRQ with high confidence.
2026-04-28 English
Appendix 5B Quarter Ended 31 March 2026 5 pages 279.6KB
Interim / Quarterly Report Classification · 100% confidence The document is titled 'Appendix 5B' and is described as a 'Mining exploration entity or oil and gas exploration entity quarterly cash flow report.' It contains detailed quarterly cash flow statements, including operating, investing, and financing activities, for the quarter ended 31 March 2026. The document references ASX Listing Rules Appendix 5B, which is a standard quarterly report format for mining and exploration companies in Australia. The content includes actual financial data and analysis for a quarter, not just an announcement or certification. Therefore, this document fits the definition of an Interim / Quarterly Report (IR).
2026-04-28 English
Quarterly Activities Report period ended 31 March 2026 4 pages 548.0KB
Interim / Quarterly Report Classification · 95% confidence The document is titled 'Quarterly Activities Report Period Ending 31 March 2026' and contains detailed operational updates, financial and corporate information, capital raising details, and mining tenement interests. It includes substantive financial data such as cash position and expenditure, as well as operational progress and exploration results. The length of the document (over 12,000 characters) and the presence of detailed financial and operational data indicate it is a comprehensive report rather than a brief announcement. The document is clearly a quarterly report covering a period shorter than a full fiscal year and contains actual financial statements and analysis. Therefore, it fits the definition of an Interim / Quarterly Report (IR).
2026-04-28 English
Change of Auditor 1 page 331.4KB
Regulatory Filings Classification · 58% confidence The document is an ASX announcement entitled “Change of Auditor” advising that William Buck has been appointed as the Company’s external auditor following the resignation of the prior auditor. It does not contain an audit report or detailed applied accounting principles; rather, it is a regulatory announcement regarding corporate governance. There is no specific S&P Capital IQ category for auditor appointments, so this falls into the fallback “Regulatory Filings” category (RNS).
2026-04-19 English
Form 604 Change in Substantial Holding (Gold Valley) 3 pages 216.8KB
Major Shareholding Notification Classification · 95% confidence The document is an Australian Form 604 “Notice of change of interests of substantial holder” under the Corporations Act 2001, showing changes in voting power for a substantial shareholder. This directly corresponds to a notification of changes in significant share ownership levels, matching the Major Shareholding Notification category (MRQ).
2026-04-15 English
Response to ASX Query Letter 6 pages 678.2KB
Regulatory Filings Classification · 92% confidence The document is an official response letter from Macarthur Minerals to ASX Listing Compliance addressing an ASX query about cleansing notice timing under Listing Rules 3.1/3.1A and section 708A of the Corporations Act. It does not present financial results, proxy materials, management changes, or investor presentations. Instead, it is a regulatory compliance communication with ASX and falls under general regulatory announcements. Therefore, it is best classified as a Regulatory Filing (RNS).
2026-04-15 English

Browse filings by year

8 years

Report missing filing

Can't find a specific document? Let us know and we'll add it within 24 hours.

We will notify you once the filing is added.
Report sent
Thank you. We will check the data and update it shortly.