Proyecto Riotinto

Flagship open-pit copper operation owned and operated through wholly-owned subsidiary Atalaya Riotinto Minera, S.L.U. Located in the Iberian Pyrite Belt in the Andalusia region of Spain, approximately 65 km northwest of Seville. The complex comprises the producing Cerro Colorado pit, the San Dionisio deposit (waste-stripping accelerating from 12.4 Mt in FY2025 to 19-23 Mt in FY2026 to provide higher-grade blend feed; AAU received from Junta de Andalucia on 15 May 2025) and the San Antonio polymetallic deposit located immediately east of Cerro Colorado (subject to infill and step-out drilling). Brownfield expansion completed in 2019. A 15 Mtpa processing plant with engineering ongoing for a polymetallic circuit to allow simultaneous treatment of polymetallic and copper ores. Atalaya updated its Ore Reserves in June 2025 in accordance with the JORC Code (2012); the latest Ore Reserves statement implies a mine life of approximately nine years. Supported by a long-term PPA and a 50 MW solar plant under construction. Concentrate is sold to three offtakers via subsidiary EMED Marketing Ltd (Switzerland and Singapore are the largest customer countries).