Multi-Commodity Potential at Columbus

The Columbus basin hosted historical boron (borax) production in the late 1800’s and the same volcanic source rocks that feed Ioneer’s (~$450M* CAD MC) nearby feasibility-stage Rhyolite Ridge lithium-boron (sediment/clay-hosted) Project also feed the Columbus basin.

Canter is targeting a major lithium-boron brine discovery in the Columbus basin’s multi-tiered aquifer network. Phase I drilling has demonstrated potential for multi-commodity near-surface mineral resource potential with widespread lithium and boron mineralization in both brines/solids.

_{*November 2024}

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_{¹ Reserves & Resources – Ioneer Disclaimer
Note: Mineralization at nearby or adjacent properties is not necessarily indicative of mineralization hosted at the Company’s Columbus Project.}