Announcement PDF 25 May 2026 NOTICE GIVEN UNDER SECTION 708A(5) OF THE CORPORATIONS ACT Castle Minerals Limited (“Castle”, the “Company”) (ASX: CDT) advises that it has today issued 3,750,000 new ordinary shares at an issue price of $0.06 per share to the vendors and nominees of Meekasan Pty Ltd, pursuant to the completion of the acquisition of 100% of the issued share capital of Meekasan Pty Ltd under the Share Purchase Agreement announced by the Company on 3 March 2026. As at the date of this notice: a) the Company has complied with the provisions of Chapter 2M of the Corporations Act as they apply to the Company and section 674 of the Corporations Act; and b) there is no information that is excluded information for the purposes of section 708A(7) and 708A(8) of the Corporations Act. An Appendix 2A for the quotation of the share issue was lodged today. Approved by: Jade Styants Company Secretary Castle Minerals Limited This announcement was authorised for release to the ASX by the Board of Castle Minerals Limited. enquiries@castleminerals.com Cleansing Notice ABOUT CASTLE MINERALS Castle Minerals Limited (ASX: CDT) is a gold exploration company with strategic tenure positions in Côte d’Ivoire, Ghana and Western Australia, encompassing some of the world’s premier gold producing regions. Castle’s projects are situated within the prolific West African Birimian gold belts, host to numerous multimillion-ounce gold deposits and operating mines across Côte d’Ivoire, Ghana and the broader region. In Côte d’Ivoire, Castle is under contract to acquire the Niellé Gold Project in the country’s highly prospective north, while also advancing the Mineralis Gold Project assets comprising seven permits (one granted and six in application) located along the Côte d’Ivoire–Ghana border. In Ghana, the Company holds the Kpali and Kandia Gold Projects in the Upper West Region, where exploration activities are focused on advancing multiple gold targets across fertile Birimian greenstone terranes. In Western Australia, Castle has established a dominant, contiguous ~184km2 landholding in the Murchison Gold District providing exposure to a proven gold province hosting multiple operating and past- producing mines. The Company’s Meeka South Gold Project boasts a strong infrastructure advantage located proximal to the Bluebird Gold Processing Mill (Westgold) and near Meeka Metals’ Murchison Gold Project, with geology comparable to established regional producers.