Rolleston South Coal Resource Surges 140% to 190 Million Tonnes
Yari Minerals has announced a substantial 140% increase in its JORC Inferred Coal Resource at the Rolleston South Project in Queensland, now totaling 190 million tonnes. The company is actively drilling to upgrade resource confidence and confirm coal quality, positioning itself for future development.
- 140% increase in JORC Inferred Coal Resource to 190Mt
- Inaugural drilling campaign underway targeting resource upgrade
- Project located in Tier 1 Bowen Coal Basin with strong infrastructure access
- High-quality semi-soft metallurgical coal confirmed by lab analysis
- Fully funded drilling program with regulatory approvals secured
Significant Resource Growth in Queensland's Coal Heartland
Yari Minerals Limited has reported a remarkable uplift in its coal resource at the Rolleston South Project, situated in the world-renowned Bowen Coal Basin of Queensland. The company’s JORC Inferred Resource has expanded by 140% since acquisition, now standing at approximately 190 million tonnes. This growth reflects both the integration of new geological data and improved modeling techniques, underscoring the project's substantial potential.
Strategic Location and Infrastructure Advantages
The Rolleston South Project benefits from its proximity to established coal mining operations and infrastructure. Located just 40 kilometres from key rail loading loops on the Blackwater rail system, the project enjoys seamless access to the Port of Gladstone, one of the largest coal export terminals globally. This connectivity is critical for efficient coal transport to Asian markets, enhancing the project's commercial viability.
Drilling Campaign Targets Resource Upgrade and Coal Quality Confirmation
Yari Minerals has commenced its inaugural drilling campaign, comprising six reverse circulation and diamond drill holes totaling 2,000 metres. The primary objectives are to upgrade the resource classification from Inferred to Indicated status and to confirm the presence of high-quality semi-soft metallurgical coal through core sample testing. The campaign also includes geotechnical assessments to support future development studies.
Coal Quality and Market Outlook
Laboratory analyses indicate that the coal within Rolleston South is of high quality, capable of producing washed semi-soft coking and thermal coal products with low ash and sulphur content. This positions the project well within the current market context, where demand for metallurgical coal remains robust, supported by constrained global supply and strong price forecasts in the medium term.
Corporate and Financial Positioning
The acquisition of Rolleston South was completed at a cost representing just under 30% of Yari Minerals’ market capitalisation, with the company now fully funded for its ongoing drilling program. Major shareholders include the Copulos Group, holding over 25%, alongside other significant stakeholders. The management team brings extensive experience in mining, finance, and project development, providing a solid foundation for advancing the project towards mining lease applications anticipated in 2026.
Bottom Line?
As Yari Minerals drills deeper into Rolleston South, the next resource upgrade and coal quality results will be pivotal in shaping its development trajectory.
Questions in the middle?
- Will the upcoming drilling campaign successfully upgrade the resource classification to Indicated status?
- How will coal quality assay results influence the project's market positioning and potential offtake agreements?
- What is the timeline and likelihood for securing mining leases and advancing towards production?
