Announcement PDF ` 7 September 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 38,200,000 new ordinary shares at an issue price of $0.075 per share to sophisticated and professional investors, pursuant to the placement announced on 28 August 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. This announcement was authorised for release to the ASX by the Board of Castle Minerals Limited. For further information please contact: Steve Zaninovich Managing Director enquiries@castleminerals.com This announcement was authorised for release to the ASX by the Board of Castle Minerals Limited. - END - ABOUT CASTLE MINERALS Castle Minerals Limited (ASX: CDT) is a West African–focused gold explorer with tenure positions in Côte d’Ivoire andWestern Australia,two ofthe world’spremier gold-producing regions.TheCompany hasproposed changing its name to TerraNova Metals, subject to shareholder approval. In Côte d’Ivoire, Castle is contracted to earn interests in eight permits (one granted, seven under application), including the flagship Nielle Gold Project in the north. The remaining “CDI East” permits sit along the Côte d’Ivoire–Ghana border. All are located on fertile Birimian greenstone belts that host numerous multimillion- ounce gold deposits across West Africa. In Western Australia, Castle holds a dominant, contiguous ~184km² landholding in the Murchison Gold District, a proven province hosting multiple operating and past-producing mines. Its Meeka South Gold Project carries a clear infrastructure advantage, sitting close to the Bluebird Gold Processing Mill (Westgold) and Meeka Metals’ Murchison Gold Project, with geology comparable to established regional producers.