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Investor Presentaiton

EL> Large Increases in Key Metals for the Pre-Feasibility Study Engineers designing a 500,000tp/a Processing Plant for the PFS Classification Rover 1 Mineral Resource Estimate Gold (Oz) Copper (T) Cobalt (T) Magnetite* Indicated 242,600 63,400 2,900 TBA Inferred 20,900 14,000 900 TBA Total 263,500 77,400 3,800 TBA 2g/t Eq Cut Off Grade Classification Grade Tonnes Gold (g/t) Copper (%) Cobalt (%) Magnetite (T) Indicated 3,882,000 1.94 1.63 0.07 TBA Inferred Total 865,000 4,747,000 0.75 1.62 0.10 TBA 1.73 1.63 0.08 TBA 7 castile.com.au CST:ASX 8 March 2022 "Large Increases in Gold, Copper and Cobalt at Rover 1 AU <F CU <

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