87 Overview Principal Producing Development  Highlighted Evaluation Evaluation/Exploration  Mineral Resources and Reserves For more information, please visit: www.erocopper.com . DEVELOPMENTS AND POTENTIAL The NX 60 initiative, aimed at achieving sustained annual gold production levels of approximately 60,000 ounces, was completed in 2023 through the development of the Matinha Vein to supplement existing production from the Santo Antônio Vein. The initiative resulted in record annual production of over 59,000 ounces of gold in 2023 and anticipated annual gold production of between 55,000 to 60,000 ounces in 2024. Exploration initiatives targeting extensions of the Santo Antônio and Matinha Veins, as well as drilling of brown-field exploration targets throughout the extensive land package controlled by Ero Copper, remain ongoing. 4 MINER AL RESOURCES AND RESERVES As of December 31, 2023 CONTAINED Au (koz) AGEOs* (koz) Proven and Probable 385 44 Measured and Indicated – – Inferred 45 – * AGEOs do not consider adjustments that may impact the economic viability of the AGEO interest. See page 9 for a description of AGEO calculation methodology. FINANCIAL AND OPER ATING RESULTS As of December 31, 2023 Revenue to Royal Gold Since Inception US$M $51.6 Historic Revenue to Royal Gold US$M 2022: $18.4 2023: $25.4 Metal Deliveries to Royal Gold Since Inception 27.7 koz Au Advance Payment US$M $100.0 Investment Recovered % 40% Net Book Value US$M $80.0