Announcement PDF Castle Minerals Limited ASX Announcement 28 May 2025 Loyalty Options Offer - Results & Shortfall Notice Castle Minerals Limited (ASX: CDT) (“Castle”, the “Company”) refers to its non-renounceable pro-rata entitlement offer of 1 new unlisted option exercisable at $0.12, expiring 31 May 2028 (New Option) for every 3 fully paid ordinary shares in the Company, to raise up to $193,349.28 (before costs) (Loyalty Options Offer or Offer). The Loyalty Options Offer closed on 21 May 2025. The Company has received applications under the Loyalty Options Offer for 21,547,839 New Options at the issue price of $0.005 per New Option, raising gross proceeds of $107,739.19. These New Options have been issued today. Details of the entitlements not taken up under the Loyalty Options Offer are provided in the table below. The shortfall offer is a separate offer made pursuant to the prospectus dated 22 April 2025. The Company has received firm commitments to place the shortfall to professional and institutional investors, raising $85,605.51. The shortfall shares will also be issued today. Funds raised from the issue of the New Options under the Loyalty Options Offer will be applied towards working capital. Loyalty Options Offer & Shortfall Number Number of New Options available under the Offer 38,668,940 Number of New Options subscribed for under the Offer (excluding Shortfall) 21,547,839 Number of New Options subscribed for under the Shortfall 17,121,101 Number of New Options remaining available under the Shortfall offer - Authorised for release to ASX by the Board of Castle Minerals Limited: Stephen Stone Executive Chairman stone@castleminerals.com +61 (0)418 804 564 Principal and Registered Office Suite 9 / 11 Ventnor Ave, West Perth, WA 6005 | Postal PO Box 437 West Perth, WA 6872 Contact admin@castleminerals.com | www.castleminerals.com | Telephone +61 8 93227018 Castle Minerals Limited (ASX: CDT) Loyalty Options Offer - Results & Shortfall Notice ABOUT CASTLE MINERALS Castle Minerals Limited is an Australian Securities Exchange (ASX: CDT) listed and Perth, Western Australia headquartered company with interests in several projects in Ghana and Western Australia that are prospective for gold, graphite and base metals. In Ghana, West Africa, Castle’s 100% owned Ghanaian subsidiary, Carlie Mining Ltd, owns the Kpali Gold Project in the Upper West Region which comprises the Kpali, Kpali East and Bundi gold prospects. The Kandia Gold Project, is a separately located standalone discovery. All occur in highly prospective Birimian geological terrane, the host to many of West Africa’s and Ghana’s multi-million-ounce gold mines. The 100% owned Kambale Graphite Project is also located in Ghana’s Upper West Region. It is being progressed through technical and commercial evaluation for the production of battery grade material to be used in lithium-ion battery manufacture. Farm-outs or sales have been or are being sought for the Company’s West Australian projects: The Polelle Project, 7km southeast of the operating Bluebird gold mine near Meekatharra, hosts a mainly obscured and minimally explored greenstone belt prospective for gold and possibly base metals. The Wanganui Project is prospective for down-plunge high-grade gold shoots. Both have been optioned for purchase to Great Boulder Resources Limited (ASX: GBR) for possible incorporation into its emerging Side Well project. The Terra Rossa copper-zinc project is located on the western edge of the Earaheedy Basin. It is adjacent to the evolving World-Class Chinook-Magazine zinc-lead project of Rumble Resources Ltd (ASX: RTR). The Beasley Creek Project is prospective for gold and lithium and lies on the northern flanks of the Rocklea Dome in the southern Pilbara. Page 2 of 2