Castle Minerals Limited (ASX: CDT) ('Company') advises that the attached letters have been sent to the respective registered option holders of the following unlisted options ('Options') in the Company scheduled to expire at 5.00pm, Western Standard Time on 30 June 2023 ('Expiry Date')

There is no obligation upon the option holders to exercise their Options, however if payment is not received by the Expiry Date the Options will lapse and all rights under the Options will cease at that time. Authorised for release to ASX by the Board of Castle Minerals Limited

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