Chilwa Minerals Limited Reports Robust High-Grade Drill Intersections at Mpyupyu Dune, Bolstering 19.9MT Resource Potential
Monday, June 16, 2025
at
8:27 am
Chilwa Minerals Limited reports high-grade heavy mineral sands at its Mpyupyu Dune deposit. Faster assay turnaround now supports prompt resource updates and revised estimates, with fresh rare earth drill results expected shortly. This progress further boosts prospects in its expanding critical minerals project portfolio.
Chilwa Minerals Limited has issued an announcement detailing its latest exploration results from the Mpyupyu Dune deposit in southern Malawi. In this update, the firm reported the third batch of assay results from its sonic drilling program, comprising 620 samples from 95 drill holes totaling 692 meters. Notable assay intersections include a 1.99-meter interval at 17.12% Total Heavy Mineral (THM) from surface, a 2.92-meter intercept at 27.98% THM including a sub-interval with 40.43% THM, and a 4.48-meter interval recording 14.45% THM, among several others. These high-grade intervals support the company’s interpretation of mineralization concentrated along two sub-parallel lobate strandlines within the dune area.
Drilling operations at Mpyupyu Dune are part of a broader exploration strategy encompassing 10 heavy mineral sands targets in the Chilwa Critical Minerals Project area. The deposit, with an overall Inferred Mineral Resource estimate of 19.9 million tonnes averaging 4.2% THM, is divided into the higher grade dune portion (3.5 million tonnes at 7.1% THM) and the lower grade flats (16.4 million tonnes at 3.6% THM). The technical progress is aided by a new laboratory in Pretoria, which has significantly accelerated assay turnaround times, enhancing the schedule for forthcoming mineral resource estimate updates. The company is poised to complete Mineral Resource estimates for the Mpyupyu, Mposa, and Bimbi deposits, with a revised estimate for Mposa expected in the coming weeks.
Additionally, Chilwa Minerals is advancing its multi-commodity exploration program with ongoing analyses on 47 identified Rare Earth targets. Early results from soil sampling across these targets have been promising, and drilling at the Mposa target is progressing with further assay results anticipated shortly. The company’s rigorous sampling protocols, including high core recoveries and detailed quality assurance of assay data, underline the robust approach being taken to de-risk the project and enhance confidence in its future resource estimates.
The news carries a bullish sentiment as the high-grade intersections and improved assay processing support the potential for a significant upgrade in mineral resource estimates. Investors may view the rapid assay turnaround and expanded dataset as strong indicators of accelerated project development, which could drive positive valuation outcomes. Conversely, there is a bearish aspect tied to the inherent risks of exploration projects where resource estimates remain classified as inferred and future outputs, such as Rare Earth assay results, are still pending. The upcoming resource upgrades and scoping study provide near-term milestones, but uncertainties in commodity markets and project execution remain factors to watch.