Sunstone Metals Annual Report 2024

Operating Review continued TENEMENT SCHEDULE Gold-Copper Tenements – Ecuador Tenement Holder Tenement Name Location Status Sunstone Ownership Bramaderos S.A. BramaderosA Loja, Ecuador Granted 87.5% Bramaderos S.A. Bramaderos 02 Loja, Ecuador Granted 87.5% Bramaderos S.A. Cueva de Leon Loja, Ecuador Granted 87.5% Golden Exploration Ecuador S.A. Los Mandariyacus (El Palmar)B Imbabura, Ecuador Granted 74.5%B Compania Minera Verde Chico CIA Ltda Verde ChicoC Imbabura, Ecuador Granted 0% Notes A: Sunstone announced on 7 January 2020 that the terms of the Earn-in Joint Venture with TSX-V listed Cornerstone Capital Resources (subsequently merged with SolGold PLC) had been amended to provide Sunstone with an immediate 87.5% interest and SolGold with a loan carried 12.5% interest in Bramaderos S.A. (formerly named La Plata Minerales S.A.) the holder of the Bramaderos concession. B: Sunstone announcement 12 August 2020 regarding a Staged Acquisition Agreement for 100% of the El Palmar project. Sunstone acquired a further 4.5% of El Palmar following an instalment payment in July 2024. Sunstone can acquire the remaining 25.5% by 30 June 2026. C: Sunstone announcement 21 June 2022 regarding a Letter of Intent to acquire 100% of the Verde Chico Project, located to the west of Sunstone’s El Palmar gold-copper porphyry discovery in northern Ecuador, through a Staged Acquisition Agreement, signed 23 September 2022, from the Verde Chico Group. Overview 17 Sunstone Metals Limited Annual Report 2024

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