Castle Minerals (ASX: CDT) has purified graphite from its Kambale project in Ghana to 99.97% TGC — clearing the benchmark for lithium-ion battery anodes and using a safer caustic-soda process rather than hydrofluoric acid — a milestone that sent its shares up 50% and opens the door to offtake and financing talks.

Read the full story on The West Australian:

Castle kicks off new year with major graphite milestoneCastle Minerals has achieved purification levels of 99.97 per cent total graphitic carbon from ore at its Kambale project in Ghana, exceeding the benchmark required to produce lithium-ion battery anodes.https://thewest.com.au/business/bulls-n-bears/castle-kicks-off-new-year-with-major-graphite-milestone-c-13475327