Castle Minerals Limited announced that its recently completed soils campaign just completed to validate presence of lithium-bearing pegmatites. Area sampled: hosts pegmatites mapped by GSWA but never drilled for lithium; contains a historical multi-element geochemical anomaly of coincident lithium and lithium indicator elements (rubidium, beryllium, caesium and tin) consistent with possible hard rock lithium mineralisation; lies in the same prospective pegmatite field that hosts the Bald Hill lithium-tantalum mine1, 25km to the northwest; and is favourably located in close proximity to several mapped granite 'source' intrusions. Several other zones of coincident multi-element anomalism on Castle's 242km2 licences imply a broad area of prospectivity for lithium bearing pegmatites.

The Liontown Resources Limited owned Buldania lithium deposit2 lies 25km to the southwest and the Mineral Resources Limited owned Mt Marion mine3 ~100km to the north. Castle's Battery Metals strategy also comprises the Wilgee Springs lithium, the Woomba Well lithium, the Great Southern graphite and the Kambale graphite projects. Their close proximity to several mapped intrusions, the likely source of any lithium mineralisation, is considered very favourable.

The area recently sampled by Castle also contains one of several anomalous zones on its licences of coincident lithium and lithium indicators elements.