Announcement PDF ASX Announcement ASX: CYM | 26 JUNE 2026 T +61 8 6374 1550 E communications@cypriummetals.com W cypriummetals.com Level1, 437 Roberts Road Subiaco WA 6008 AUSTRALIA Cyprium Metals Limited ABN: 48 002 678 640 ASX: CYM EXECUTIVE APPOINTMENT HIGHLIGHTS  Christofer Catania appointed as Chief Technical Officer 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 a recent addition to the executive team. Christofer Catania has joined Cyprium Metals as Chief Technical Officer. Christofer is a highly regarded executive and mining engineer with extensive international experience across a broad range of commodities, including copper. Christofer brings a proven track record of delivering technical and operational excellence, taking projects through studies and into operations, in Australia and internationally. He most recently served as Senior Vice President, Global Resources at Worley (ASX: WOR), a global professional services and engineering group, where he led large-scale technical, operational and strategic resource initiatives across multiple jurisdictions. Christofer was also previously the CEO of technical advisory firm MEC Mining and Chief Engineer for KAZ Minerals, an open pit copper mining company that produced both copper cathode and concentrate. Christofer is also currently a director of Emesent, a technology company that provides mobile LiDAR mapping solutions. His combination of technical expertise, strategic leadership and deep industry experience is expected to play a key role in supporting Cyprium’s next phase of growth. Cyprium Executive Chairman Matt Fifield said: “Chris is creating immediate impact already. As the competent person on our 2024 Nifty PFS and lead engineer on our Heap Leach restart plans, Chris is well familiar with the Cyprium team and our plans for the Nifty Copper Complex. Having him in-house has allowed us to accelerate all phases of planning, enhance our internal and external reporting and communications, and strengthen our technical foundation as we move into operations and continue to build Australia’s next great copper company.” This ASX announcement was authorised by the Cyprium Executive Chairman. 2 ASX: CYM | For Enquiries: Angus Miles | VP – Corporate Development and Investor Relations +61 8 6374 1550 Chris Lim | External Media Relations Advisor +61 493 392 001 communications@cypriummetals.com 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 3 ASX: CYM | 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 Near-term Producer 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