MRG Metals Limited has reported high-grade Total Heavy Mineral (THM) assay results from the fifth alluvial target at its Adriano Rare Earth Project in Mozambique, reinforcing district-scale mineralisation across five targets. Mineralogical studies and assays from adjacent licences are pending, supporting the broader Adriano-Fotinho critical mineral corridor potential.
- High-grade THM results confirmed across five alluvial targets at Adriano
- Fifth target returned average 3.19% THM over 3.12m with peak 6.14% THM in 1m sample
- Mineralogical studies underway to define valuable heavy mineral assemblage and rare earth oxide content
- Assay results from adjacent Fotinho licence expected to further confirm district-scale potential
- Surface mineralisation supports potential low-cost, low-strip development pathway
High-Grade Assay Results from Fifth Alluvial Target
MRG Metals Limited (ASX:MRQ) has announced significant assay results from the fifth alluvial target area at its Adriano Rare Earth Project in Mozambique. The recent auger drilling campaign, conducted between October and December 2025, confirmed high-grade Total Heavy Mineral (THM) mineralisation across all five targeted alluvial areas within the Adriano licence. At the fifth target, nine holes were drilled, with five returning weighted average THM grades exceeding 3% over the entire drilling depth. The highest grade hole, AAG25046, recorded 4.56% THM over 3.95 metres, including an individual 1-metre sample grading 6.14% THM.
The weighted average THM grade across all nine holes at Target 5 was 3.19% over an average thickness of 3.12 metres. These results are consistent with earlier findings from the first four target areas, where 37 holes returned a weighted average of 4.50% THM over 2.84 metres, including five holes with grades above 6% THM and individual samples reaching 9.56% THM over 1 metre.
District-Scale Mineralisation and Surface Occurrence
All five alluvial target areas are situated within a drainage system that previously yielded anomalous Total Rare Earth Oxide (TREO) values in historic stream sediment samples. Notably, 74% of these samples exceeded 1,000 parts per million TREO, with peaks reaching over 32,000 ppm and a magnetic rare earth component of approximately 22%. Mineralisation occurs at surface across all targets, which may facilitate a low-cost, low-strip ratio development approach.
The auger drilling method used is limited to sampling above the water table and in finer alluvial sediments, as coarse gravel layers and waterlogged conditions restrict penetration. Despite these limitations, the consistent high-grade THM results across all targets reinforce the potential scale of the mineralised system.
Ongoing Mineralogical Studies and Exploration Plans
MRG Metals is progressing mineralogical studies on composite heavy mineral concentrate samples at SGS analytical laboratory to better define the valuable heavy mineral assemblage, particularly focusing on rare earth-bearing monazite and other minerals such as ilmenite, rutile, and zircon. These studies will also quantify the rare earth oxide content within the mineral assemblage.
Assay results from initial sampling at the adjacent Fotinho licence are awaited and expected to provide further insight into the district-scale potential of the Adriano-Fotinho critical mineral corridor. Additionally, pegmatite outcrop sampling is underway to investigate potential hard rock sources contributing to the alluvial mineralisation, which could indicate both surface and primary hard rock mineralisation potential.
Based on mineralogical outcomes, MRG Metals plans to undertake further exploration including infill auger and sonic drilling, as well as trenching, to support mineral resource definition. This exploration strategy aligns with the company’s broader efforts to advance its critical minerals portfolio.
Strategic Positioning and Broader Project Momentum
MRG Metals’ Chairman, Andrew Van Der Zwan, highlighted the significance of confirming high-grade THM mineralisation across the full extent of the Adriano licence, reinforcing confidence in a district-scale alluvial system. He noted that alongside Adriano, the company is advancing its Garies project in South Africa towards a Mineral Resource Estimate and progressing a Titanium Dioxide Joint Venture in Mozambique targeting production in early 2027.
This announcement follows recent developments at the Garies project, where MRG Metals unveiled a scalable processing breakthrough for high-grade rare earth mineralisation, achieving an initial 72% recovery of monazite concentrate with potential for further improvement. These parallel advancements underscore the company’s strategy to build a diversified critical minerals business with rare earths at its core.
In a broader market context, the confirmation of district-scale mineralisation at Adriano complements MRG’s ongoing exploration momentum and may attract further investor interest as the company approaches key catalysts including mineralogical results and assay updates from adjacent licences. The company’s methodical approach to exploration and resource definition reflects a measured progression towards potential development.
Bottom Line?
Pending mineralogical and adjacent licence assay results will be critical to refining the resource potential and guiding next-stage exploration at Adriano.
Questions in the middle?
- How will the forthcoming mineralogical study results influence the valuation and development plans for the Adriano project?
- To what extent might the adjacent Fotinho licence assays confirm or expand the district-scale mineralisation corridor?
- What are the technical challenges and timelines anticipated for infill drilling and resource definition following these initial auger results?