good follow-up
WEST ARUNTA PROJECT
INITIAL METALLURGICAL TESTWORK RESULTS
Highlights
▪ Excellent flotation results demonstrate a high-grade niobium concentrate with low impurities and industry comparable recovery rates can be produced from Luni oxide mineralisation using a conventional two stage flotation regime
▪ Initial flotation testwork was completed on sample material from a drillhole located in the northeast of Luni
▪ Open cycle float tests achieved a high-grade concentrate with excellent recovery:
Open cycle concentrate (2nd cleaner) 51% Nb2O5at 62% recovery
Open cycle concentrate (4th cleaner) 61% Nb2O5 at 52% recovery
▪ Subsequent locked cycle testing confirmed the flotation regime performance:
Locked cycle concentrate (5th cleaner) 58% Nb2O5 at 53% recovery
▪ Ongoing testwork is aiming to optimise the beneficiation stage including testing other process steps used at existing niobium operations, before moving to variability testing across Luni
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