Announcement PDF ASX Announcement ASX: CYM | 3 SEPTEMBER 2025 COMPLETION OF TRANCHE 1 OF PLACEMENT Cyprium Metals Limited (ASX: CYM / OTCQB: CYPMF) (Cyprium or the Company), is pleased to announce the successful completion of Tranche 1 of the two-tranche placement to raise approximately A$74 million (before costs) via the proposed issue of approximately 2,643 million new fully paid ordinary shares in the Company (Placement Shares) at an issue price of A$0.028 (Placement). Under Tranche 1 of the Placement, the Company confirms that it has today issued 515,931,656 Placement Shares. Tranche 2 of the Placement, comprising 2,126,925,510 Placement Shares, which includes Placement Shares to Directors of the Company, will be issued subject to shareholder approval which will be sought at a meeting of the Company’s shareholders in October. Proceeds of the Placement will be used to execute the phase one Cathode Project, materially strengthen the balance sheet, complete the feasibility study for the Concentrate Project and maintain the Company’s extensive asset base in the Paterson Province. Wilsons Advisory acted as Financial Adviser and Joint Lead Manager, Canaccord Genuity and Euroz Hartleys acted as Joint Lead Managers to the Placement. Wallabi Group acted as Co-Manager to the Placement. Confidant Partners acted as legal adviser to the Company. This ASX announcement was authorised by the Board of Cyprium Metals Limited. Cyprium Metals Limited ABN: 48 002 678 640 ASX: CYM Level1, 437 Roberts Road Subiaco WA 6008 AUSTRALIA T +61 8 6374 1550 E communications@cypriummetals.com W cypriummetals.com For Enquiries: Angus Miles | VP – Corporate Development and Investor Relations communications@cypriummetals.com +61 8 6374 1550 Dannika Warburton | Investor & Media Relations investors@investability.com.au +61 401 094 261 Follow Cyprium Metals: Subscribe to Email alerts https://cypriummetals.com/contact-us/subscribe-to-email-alerts/ LinkedIn https://www.linkedin.com/company/cyprium-metals/ X https://x.com/CypriumMetals Not an offer of securities This announcement has been prepared for publication in Australia and may not be released to US wire services or distributed in the United States. This announcement does not constitute an offer to sell, or a solicitation of an offer to buy, securities in the United States or any other jurisdiction. Any securities described in this announcement have not been, and will not be, registered under the US Securities Act of 1933 and may not be offered or sold in the United States except in transactions exempt from, or not subject to, the registration requirements of the US Securities Act and applicable US state securities laws. ASX Listing Rule 5.23 Statements The information in this ASX Announcement that relates to Mineral Resources and Ore Reserves has been extracted from the Company’s ASX announcements dated 27 November 2024 and 5 February 2025. Cyprium confirms that it is not aware of any new information or data that materially affects the information included in the original market announcements and, in the case of estimates of Mineral Resources and Ore Reserves, which all material assumptions and technical parameters underpinning the estimates in the relevant market announcement continue to apply and have not materially changed. The Company confirms that the form and context in which the Competent Person’s findings are presented have not materially changed from the original market announcement. ASX: CYM | 2 ABOUT US Cyprium Metals Limited (ASX: CYM / OTCQB: CYPMF) is an ASX-listed Australian copper company. Its flagship property is the Nifty Copper Complex in Western Australia, which previously produced significant copper from both oxide and sulphide resources. Cyprium is focused on redeveloping Nifty, which has the advantage of significant invested capital, data from a long operating history, large-scale resources, current operational approvals, and recent investment in the property. The Company’s other assets include significant copper-focused properties in the Paterson and Murchison Provinces, including multiple defined resources. For more information, visit: www.cypriummetals.com Nifty 83Mt @ 0.90% Cu for 753kt Cu in Reserve & 91kt contained Cu in leach pads Maroochydore 371Mt @ 0.43% Cu, 227ppm Co for 1.6Mt Cu, 84kt Co. High-grade zone: 106Mt @ 0.67% Cu for 712kt Cu Development Fast-track restart with low capex and near-term cash flow from heap leach reprocessing Advantage Tier-one copper assets in Western Australia with existing infrastructure and permits in place Exploration Highly prospective copper targets at Paterson and Cue support long-term growth pipeline ASX: CYM | 3