Macro Metals has secured 100% of the Yandi South Iron Ore Project, adding a historical 4.28Mt resource and promising exploration upside near major Pilbara mines. The deal complements its existing Extension Iron Project stake and mining services contracts.
- Acquisition of 56km2 Yandi South Project near BHP and Rio Tinto mines
- Historical indicated resource of 4.28Mt at 55.8% Fe with high-grade core
- Diamond drilling confirms thick magnetite horizons with 69% Fe concentrate recovery
- Total consideration of A$6.5 million plus royalties
- Plans underway to update resource to JORC 2012 and advance mining studies
Strategic Acquisition Near Major Pilbara Iron Ore Operations
Macro Metals Limited (ASX:M4M) has taken a significant step to bolster its iron ore portfolio by executing a binding agreement to acquire 100% of the Yandi South Iron Ore Project from Western Iron Ore Pty Ltd. The project comprises three granted exploration licences covering 56 square kilometres, situated just 5 kilometres southeast of BHP's Yandi mine and adjacent to Rio Tinto’s Yandicoogina operation. This proximity places Macro in the heart of one of Australia's premier iron ore regions, enhancing its regional presence alongside its 27.3% stake in the nearby Extension Iron Ore Project.
Historical Resource and High-Grade Mineralisation Confirmed
The Yandi South Project hosts a historical Indicated Mineral Resource Estimate (JORC 2004) of 4.28 million tonnes at 55.8% iron, including a higher-grade core of 1.9 million tonnes at 58% Fe. While these figures require re-estimation under the current JORC 2012 standards, they provide a robust foundation for further development. Rock chip sampling has revealed multiple high-grade zones exceeding 60% Fe, and diamond drilling has identified magnetite-enriched horizons up to 150 metres thick from surface. Metallurgical testing of diamond core samples demonstrated the potential to produce a high-grade magnetite concentrate with iron content up to 69%, underscoring the project's product quality.
Exploration Upside and Synergies with Existing Assets
Only about 10% of the acquired tenure has been explored to date, suggesting substantial upside potential. Macro plans to undertake comprehensive field mapping, rock chip sampling, and targeted drilling campaigns, particularly focusing on the Tributary Prospect and other mesas identified as priority exploration targets. The company has also applied for an additional 46 square kilometres of exploration tenure contiguous with Yandi South, aiming to consolidate a sizeable ~100 square kilometre footprint in this highly prospective area.
Strategically, the acquisition dovetails with Macro’s existing interests. The Yandi South Project lies close to the Extension Iron Ore Project, where Macro holds a significant equity stake and mining services contract. This geographic and operational synergy could enable Macro to leverage infrastructure and expertise across both projects, potentially accelerating development timelines and optimising costs.
Commercial Terms and Next Steps
The consideration for the acquisition totals A$6.5 million, structured through upfront, deferred, and contingent payments, alongside a royalty on production, 3% on the first 4.275 million dry metric tonnes sold and 5% thereafter. The deal is subject to standard due diligence and regulatory conditions, with Macro expecting to update the resource model to JORC 2012 standards and progress mining studies in parallel with stakeholder engagement and permitting processes.
Macro’s Managing Director Simon Rushton highlighted the quality of the existing resource and the significant exploration potential, noting the project's position adjacent to major miners who are reportedly seeking to extend the life of their infrastructure in the region. This could open avenues for collaboration, further enhancing the project's strategic value.
Geological Setting and Historical Data
The Yandi South tenements lie within the Hamersley Province, hosting banded iron formations and channel iron deposits similar in style to those mined by BHP and Rio Tinto nearby. Historical drilling includes 12 diamond core holes and 109 reverse circulation holes, with assays confirming consistent high-grade mineralisation from surface. However, the true thickness and extent of mineralisation remain to be fully defined, and previous metallurgical test work indicates variable recovery, necessitating further investigation.
Macro intends to locate existing drill core for relogging, expand metallurgical test programs, and refine its geological model to better understand the deposit's characteristics and economic potential.
Bottom Line?
Macro Metals’ acquisition of Yandi South adds a valuable asset with proven quality and exploration upside, but its ultimate impact hinges on successful resource reclassification and integration with existing projects.
Questions in the middle?
- How will Macro's planned JORC 2012 resource update affect the reported tonnage and grade?
- What is the timeline and feasibility for advancing Yandi South to commercial production?
- Could Macro leverage its mining services expertise to unlock synergies with BHP and Rio Tinto infrastructure nearby?