Aranzazu PRODUCTION Zacatecas, Mexico OPERATOR Aura Minerals Inc. ("Aura") COMMODITY TYPE TERMS LAND AREA Gold, Copper Royalty 1.0% NSR 11,182 ha Royalty Summary Reserves Aranzazu is an underground copper-gold-silver mine in Zacatecas, Reserves & Resources - Cu Mexico owned and operated by Aura Minerals Inc. The mine re- P&P Reserves (mlbs Cu) 270 opened in 2018 as a 3,350 tonne per day operation which produced M&I Resources (mlbs Cu) 489 106,119 gold equivalent ounces in 2023 at a $825/oz gold-equivalent Inferred Resources (mlbs Cu) 90 cash cost. Guidance for 2024 is for 94–108Koz of GEOs. Reserves & Resources - Au P&P Reserves (koz Au) 915 Aura has a long history of replacing reserves at Aranzazu. Since M&I Resources (koz Au) 467 restarting production in 2018, Aura has increased its proven and Inferred Resources (koz Au) 279 probable Mineral Reserves, net of depletion. Aura announced that Reserves & Resources - Ag exploration is ongoing with 29,400 meters of drilling budgeted on P&P Reserves (koz Ag) 5,721 the property of which only 5% has been drill-tested to date. Current M&I Resources (koz Ag) 10,592 reserves are mainly concentrated within the Glory Hole quarry with Inferred Resources (koz Ag) 2,056 exploration efforts ongoing to extend the Glory Hole mineralization, Metalla Royalty Ounces - GEOs as well as key targets such as Cabrestante, Catarroyo, Esperanza P&P Reserves (koz) 14.3 and El Cobre. M&I Resources (koz) 14.1 Inferred Resources (koz) 4.5 * Mineral Resources are reported inclusive of Mineral Reserves In 2023, the Metalla received 849 Royalty GEOs from the Aranzazu * For Royalty GEOs calculation, Metalla estimates 100% of the Aranzazu Mineral Resources and Mineral Reserves are subject to our royalty interest and a rate of 0.85% is applicable for the copper Royalty GEOs royalty. (which factors in a 15% NSR smelting charge). Copper has been converted to Royalty GEOs assuming $3.50/lb. Silver has been converted to Royalty GEOs assuming $23/oz. * For sources, please refer to note 30 on the Notes & Sources page. Royalty & Mineralization Map * 782 GEOs were received by Nova Royatly, a subsidiary of Metalla. Royalty Boundary Metalla Royalty & Streaming Ltd. 45