Yari Minerals has identified a significant resource opportunity in the world-class Bowen Basin, secured on favorable terms that align the interests of vendors and shareholders. Strategically located near key infrastructure and supported by favorable regulations and equipment access, the project is poised for rapid progress. Our goal is to grow and enhance the resource base with maximum capital efficiency in the shortest possible timeframe. This opportunity stands out as one of the few globally that meets our stringent criteria for success.
The success of the Rolleston South Coal Project is underpinned by access to high-quality infrastructure. A state highway runs through the project site, connecting it via approximately 40km of sealed road to the Blackwater rail system. This rail network provides efficient access to coal loading facilities at the Port of Gladstone, ensuring seamless transportation and logistics for coal products.
The Rolleston South Coal Project, encompassing two granted Exploration Permits for Coal (EPCs), is a highly prospective asset located in the proven Bowen Basin, surrounded by major operators such as Glencore, Peabody, Tri-Star, and Vitrinite. A 2018 drilling campaign confirmed six significant coal seams (X, A-E) within the Bandanna Formation, with thicknesses ranging from approximately 1 to 6 meters. Laboratory analysis has verified the raw coal as high-grade, capable of producing exceptional washed semi-soft coking and thermal coal products.
Yari Minerals has significantly increased the JORC Inferred Resource at its Rolleston South Coal Project by approximately 91%, from 78.9Mt to 151Mt. This upgrade was achieved without additional drilling costs, leveraging 2021 coal seam gas well data to drive model expansion and improve coal seam thickness estimates. Planned drilling in the second half of 2025 will focus on semi-soft metallurgical coal testwork and further upgrading resource confidence levels.
Competent Persons’ Statement
The information in this report that relates to exploration results, data collection and geological interpretation is based on information compiled by Mr Mark Biggs. Mr Biggs is the Principal Geologist for ROM Resources, and is a Member of the Australasian Institute of Mining and Metallurgy (#107188). Mr Biggs is a director of ROM Resources, a company which is a shareholder of Yari Minerals Limited. ROM Resources provides ad-hoc geological consultancy services to Yari Minerals Limited. Mr Biggs has sufficient experience that is relevant to the style of mineralisation and type of deposit under consideration and to the activity that is being undertaken to qualify as Competent Person as defined in the 2012 edition of the ‘Australasian Code for Reporting of Exploration Results, Minerals Resources and Ore Reserves’ (JORC Code). Mr Biggs consents to the inclusion in this announcement of the matters based on their information in the form and context in which it appears. The information in this report that relates to Coal Resources is based on, and fairly represents information and supporting documentation prepared by Mr Mark Biggs, a Competent Person who is a Member of the Australasian Institute of Mining and Metallurgy (#107188). Mr Biggs is the Principal Geologist for ROM Resources, which is a consultant to Yari. Mr Biggs has sufficient experience that is relevant to the style of mineralisation and type of deposit under consideration and to the activity being undertaken to qualify as a Competent Person as defined in the 2012 Edition of the “Australasian Code for Reporting of Exploration Results, Mineral Resources and Ore Reserves”. They have also been carried out in accordance with the principles and guidelines of the
“Australian Guidelines for the Estimation and Classification of Coal Resources 2014 Edition”, prepared by the Guidelines Review Committee on behalf of the Coalfields Geology Council of New South Wales and the Queensland Resources Council. Mr Biggs has approved the Statement as a whole and consents to its inclusion in this report in the form and context in which it appears.
The company confirms that it is not aware of any new information or data that materially affects the information included in the ASX Announcement of 10 June 2025 and that all material assumptions and technical parameters underpinning the estimates in that announcement continue to apply and have not materially changed.
ASX: YAR