Announcement PDF ASX Announcement ASX: CYM | 27 JUNE 2025 CYPRIUM BOLSTERS SENIOR LEADERSHIP TEAM HIGHLIGHTS • Jeff Sommers appointed Chief Financial Officer • Angus Miles, VP Corporate Development, to lead Investor Relations Cyprium Metals Limited (ASX: CYM / OTCQB: CYPMF) (Cyprium or the Company), a copper developer focused on the phased restart of the Nifty Copper Complex in the Paterson region of Western Australia (Nifty), is pleased to announce key additions to its senior management team. Jeff Sommers, who joined Cyprium earlier this year to lead the scoping of enterprise reporting and assurance frameworks between Cyprium and mining services provider Macmahon, has been appointed Chief Financial Officer (CFO). Jeff brings more than two decades of executive finance experience, including senior roles as CFO, financial controller and enterprise transformation in both ASX-listed and international organisations. His career spans blue-chip companies such as Lion, Qantas, AMP, GenesisCare and most recently Folium Capital, where he served as CFO for the fund’s Australian agricultural investments. His transition into the permanent CFO role will support Cyprium’s continued focus on strengthening financial systems and advancing project finance. Angus Miles, who joined the company as VP Corporate Development, will expand his role to also lead the Company’s Investor Relations efforts. Angus has significant capital markets and transaction experience with Azure Capital and EY, and corporate development and investor relations experience with GreenTech Metals. Commenting on the appointments, Cyprium Executive Chairman, Matt Fifield, said: “We are delighted to welcome Jeff Sommers as Chief Financial Officer. Jeff’s impressive track record makes him exceptionally well placed to support Cyprium as we progress from developer to producer at the Nifty Copper Complex. We are also excited to have Angus leading our corporate development and investor relations functions. These are two key appointments that further our mission to build Australia’s next great copper company.” Cyprium also advises that interim CFO Manu Trivedi will depart the Company. The Board sincerely thanks Manu for his contribution during a transitional period and wishes him all the best in his future endeavours. This ASX announcement was approved and authorised by the Cyprium Executive Chair. 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: Matt Fifield | Executive Chair communications@cypriummetals.com +61 8 6374 1550 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 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. For more information, visit: www.cypriummetals.com Nifty 83Mt @ 0.90% Cu for 753kt Cu in Reserve + 91kt cont. 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