Lindian Resources (ASX: LIN) Advances Kangankunde with 98% NdPr Recovery and ANSTO-Validated Rare Earth Processing

Lindian Resources (ASX: LIN) has cleared one of the biggest technical hurdles facing rare earth developers after Australia’s Nuclear Science and Technology Organisation (ANSTO) independently validated its downstream processing flowsheet for the Kangankunde Rare Earth Project in Malawi.

Rather than reporting another drilling result or resource upgrade, Lindian has delivered a milestone that shifts attention from geology to commercial execution. The company’s latest metallurgical program confirmed 98% extraction of neodymium and praseodymium (NdPr) and 96% overall rare earth recovery, while producing a specification-grade Mixed Rare Earth Carbonate that qualifies as non-radioactive under International Atomic Energy Agency standards.

For rare earth projects, this is a significant step.

Mining rare earths is only part of the challenge. Processing the ore into a saleable product is often where projects encounter technical, regulatory and financial obstacles. Independent validation by ANSTO provides third-party confidence that the chemistry works and that the proposed process can consistently produce a marketable product.

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The final carbonate product also contained radionuclide levels below analytical detection limits, meaning it is exempt from radioactive transport and handling requirements under IAEA guidelines. That could simplify logistics, lower compliance costs and make the product more attractive to downstream customers.

The validation comes as governments across the United States, Europe, Japan and Australia continue searching for alternative rare earth supply chains outside China, which still dominates global refining and magnet production. According to the International Energy Agency (IEA) and the International Energy Agency’s Global Critical Minerals Outlook, expanding downstream processing capacity has become as strategically important as discovering new deposits.

Lindian’s latest results suggest Kangankunde may offer both.

The processing flowsheet was designed to convert Kangankunde concentrate into Mixed Rare Earth Carbonate using conventional sulphuric acid processing before integrating with the existing SARECO processing facility in Kazakhstan. By using an established processing plant rather than constructing an entirely new refinery, the company expects to reduce capital expenditure, shorten development timelines and lower execution risk.

The metallurgical performance was also encouraging across multiple stages of the process.

ANSTO reported rare earth dissolution of more than 90% during the initial water leach stage, while carbonate precipitation recovered more than 99.9% of the dissolved rare earths. Overall NdPr recovery reached approximately 96%, with purification losses limited to around 1.1%.

The final product achieved a grade of 48.6% Total Rare Earth Oxides plus Yttrium (TREO+Y) while containing only trace levels of thorium and uranium.

Those figures compare favourably with many monazite-based rare earth projects, where radioactive impurities often require additional handling, storage and processing infrastructure.

Executive Director Zac Komur said the completion of the ANSTO program represented an important technical milestone for the company.

“These results mark the successful completion of ANSTO’s downstream metallurgical program and represent the technical validation required to support Kangankunde’s ambition to become one of the world’s leading downstream monazite projects, subject to implementation at the SARECO facility.”

“ANSTO has independently validated the complete conventional sulphuric acid flowsheet from concentrate through to specification mixed rare earth carbonate, delivering world-class recoveries, an independently certified non-radioactive product and direct compatibility with the existing SARECO processing facility in Kazakhstan.”

“Collectively, these outcomes materially reduce technical and execution risk by confirming the process at scale, demonstrating repeatability across multiple concentrate feeds and validating the engineering basis for commercial MREC production.”

Lindian shares were trading at A$0.77 on Wednesday morning, valuing the company at approximately A$1.42 billion. The stock has risen more than 746% over the past year, reflecting growing market interest in Kangankunde and its downstream strategy.

Source: MarketIndex 

The company’s focus now shifts toward recommissioning the SARECO facility, implementing the ANSTO-validated flowsheet and targeting first commercial Mixed Rare Earth Carbonate production during the fourth quarter of 2026.

While financing, commissioning and operational ramp-up remain important milestones, the latest announcement removes a significant layer of technical uncertainty. For a sector increasingly focused on processing capability rather than resource size alone, Lindian has strengthened its position as it moves closer to becoming an integrated rare earth producer.

Source: Lindian Resources ASX announcement; International Energy Agency (IEA) Global Critical Minerals Outlook.