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Castle Minerals has commenced test work on three samples of graphitic material excavated from three trenches at its Kambale Graphite Project located in Ghana’s Upper West region.

This phase 1 test work will be undertaken by Perth based Metallurgy under the supervision of Independent Metallurgical Operations and is expected to be completed in early July.

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Subject to positive results, additional studies will be undertaken to develop a preliminary process flowsheet, to enable benchmarking of the Kambale Project against other developed and undeveloped deposits and to identify specific market opportunities for any concentrates that can be produced.

Castle Minerals geologists bag samples from one of the three excavated trenches

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This work would be further complemented by core drilling to obtain samples of deeper un-weathered material for additional test work and by RC and core drilling to infill and extend the existing Mineral Resource.

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Additional RC and air-core drilling will be undertaken to extend the strike of the deposit which presently remains open ended, especially to the south.

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Castle’s appraisal of the Kambale Project is consistent with improved market prices for graphite concentrates and a positive longer-term outlook for the commodity.

These are underpinned by graphite’s use in the manufacture of lithium-ion batteries which are being increasingly used in electric vehicles, consumer electronics and other electricity storage applications.

Castle Managing Director, Stephen Stone said:

“It’s been a challenge to have the three samples of Kambale graphite collected and transported to Perth so we are really pleased that they are now here and that test work has commenced.

“Given the very positive outlook for the graphite market driven by its growing usage in traditional markets and the now burgeoning electricity storage and EV related markets, we are understandably very keen to determine asap if we can produce a commercially acceptable product.”