Metallurgical sighter test work delivers positive results to support Tanami Heavy Rare Earth Project potential

PVW Resources (‘PVW’, “the Company”) is pleased to provide an update on the metallurgical sighter testwork and mineralogical results at the Tanami Rare Earth Project.

• Ore sorting and magnetic separation testing have been successful in upgrading the rare earth grade of samples while rejecting significant mass, indicating important potential to save on downstream processing costs.
• Ore Sorting obtained a TREO grade of 7.16% at a recovery of 87.3%.
• Magnetic separation obtained an 81.2% recovery and 50.8% mass rejection.
• Flotation testwork is being conducted on the magnetic separation concentrate to achieve a higher-grade concentrate suitable for downstream processing.
• Mineralogical studies continue to add to the understanding of mineralogy and ore paragenesis, assisting the geological understanding and exploration.

Figure 1: Micro-XRF results from Killi Killi breccia, confirming a complex mineralising system.

The metallurgy and mineralogy go hand in hand and both studies indicate the xenotime mineralisation will be recoverable using known processing technologies.

Studies on the five 20kg samples collected for metallurgical testwork by metallurgical consultants IMO are progressing well with encouraging results. The assay results of the five metallurgical samples were previously reported with an average HREO percentage of 80% including an average of 2,990ppm dysprosium oxide and up to 5,795ppm dysprosium oxide (see PVW:ASX announcement dated 1st February 2022 titled “Metallurgical samples highlight significant rare earths”).

Ore sorting and magnetic separation work on the samples is complete at a “sighter” level. The knowledge gained from these two steps will ensure ongoing flotation testwork is conducted on the most suitable material to achieve a higher-grade concentrate for downstream processing.

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