Ark Mines – Unleashing Australia's Rare Earth Potential

Three stages of resource drilling have transformed the defined scale of Sandy Mitchell, with the September 2026 Mineral Resource Estimate reaching 379.4 million tonnes @ 5,430 ppm Monazite Equivalent (MzEq). Approximately 97% of the estimated resource tonnage is classified as Measured or Indicated, providing Ark with a substantial higher-confidence resource base as the project advances through its next stage of development studies.

The deposit hosts a valuable basket of rare earth and heavy minerals, including monazite and xenotime containing magnet rare earths such as neodymium, praseodymium, dysprosium and terbium, together with zircon and titanium-bearing minerals.

And significant exploration upside remains. The current Mineral Resource footprint covers approximately 23.3 km², or only around 14% of Ark’s broader 169 km² Sandy Mitchell tenure, leaving substantial room for further exploration and potential resource growth.

Sandy Mitchell has also moved well beyond the early exploration stage. A Mining Licence has been granted, the project has secured $4.5 million in backing from the QIC Critical Minerals and Battery Technology Fund, and metallurgical testwork has successfully produced commercial-grade monazite and titanium products. Ark is now advancing metallurgical work and updated project studies as it moves Sandy Mitchell toward development.

379.4 Mt
Mineral Resource Estimate

97%
Measured + Indicated by tonnage

Mining Licence
Granted March 2026

$4.5M QIC Backing
Critical Minerals and Battery Technology Fund

Commercial Products Produced
Monazite REE + titanium

~14%
Of the wider tenure currently covered by the MRE