Footnotes for Mineral Resources and Reserves General Footnotes Set forth below are the definitions of mineral resources and mineral reserves used by U.S. Securities and Exchange Commission under Regulation S-K Item 1300 (“SK 1300”). Mineral resource is a concentration or occurrence of material of economic interest in or on the Earth’s crust in such form, grade or quality, and quantity that there are reasonable prospects for economic extraction. A mineral resource is a reasonable estimate of mineralization, taking into account relevant factors such as cut- off grade, likely mining dimensions, location or continuity, that, with the assumed and justifiable technical and economic conditions, is likely to, in whole or in part, become economically extractable. Mineral Resources are subdivided into three categories, in descending order of geological certainty: • Measured mineral resource is that part of a mineral resource for which quantity and grade or quality are estimated on the basis of conclusive geological evidence and sampling. The level of geological certainty associated with a measured mineral resource is sufficient to allow a qualified person to apply modifying factors, as defined in this section, in sufficient detail to support detailed mine planning and final evaluation of the economic viability of the deposit. Because a measured mineral resource has a higher level of confidence than the level of confidence of either an indicated mineral resource or an inferred mineral resource, a measured mineral resource may be converted to a proven mineral reserve or to a probable mineral reserve. • Indicated mineral resource is that part of a mineral resource for which quantity and grade or quality are estimated on the basis of adequate geological evidence and sampling. The level of geological certainty associated with an indicated mineral resource is sufficient to allow a qualified person to apply modifying factors in sufficient detail to support mine planning and evaluation of the economic viability of the deposit. Because an indicated mineral resource has a lower level of confidence than the level of confidence of a measured mineral resource, an indicated mineral resource may only be converted to a probable mineral reserve. • Inferred mineral resource is that part of a mineral resource for which quantity and grade or quality are estimated on the basis of limited geological evidence and sampling. The level of geological uncertainty associated with an inferred mineral resource is too high to apply relevant technical and economic factors likely to influence the prospects of economic extraction in a manner useful for evaluation of economic viability. Because an inferred mineral resource has the lowest level of geological confidence of all mineral resources, which prevents the application of the modifying factors in a manner useful for evaluation of economic viability, an inferred mineral resource may not be considered when assessing the economic viability of a mining project and may not be converted to a mineral reserve. Mineral reserve is an estimate of tonnage and grade or quality of indicated and measured mineral resources that, in the opinion of the qualified person, can be the basis of an economically viable project. More specifically, it is the economically mineable part of a measured or indicated mineral resource, which includes diluting materials and allowances for losses that may occur when the material is mined or extracted. Mineral reserves are subdivided into two categories, in descending order of geological certainty: • Proven mineral reserve is the economically mineable part of a measured mineral resource and can only result from conversion of a measured mineral resource. • Probable mineral reserve is the economically mineable part of an indicated and, in some cases, a measured mineral resource. Royal Gold has disclosed a number of reserve estimates that are provided by operators that are foreign issuers and are not based on the U.S. Securities and Exchange Commission’s definitions for proven and probable reserves. For Canadian issuers, definitions of “mineral reserve,” “proven mineral reserve,” and “probable mineral reserve” conform to the Canadian Institute of Mining, Metallurgy and Petroleum definitions of these terms as of the effective date of estimation as required by National Instrument 43-101 of the Canadian Securities Administrators. For Australian issuers, definitions of “mineral reserve,” “proven mineral reserve,” and “probable mineral reserve” conform with the Australasian Code for Reporting of Mineral Resources and Ore Reserves prepared by the Joint Ore Reserves Committee of the Australasian Institute of Mining and Metallurgy, Australian Institute of Geoscientists and Minerals Council of Australia, as amended (“JORC Code”). Royal Gold does not reconcile the reserve estimates provided by the operators with definitions of reserves used by the U.S. Securities and Exchange Commission. The reserves and resources reported are either estimates received from the various operators or are based on information provided to Royal Gold or are derived from publicly available information from the operators of the various properties including National Instrument 43-101 or JORC Code reports filed by operators. Royal Gold is not able to reconcile the reserve and resource estimates prepared in reliance on National Instrument 43-101 or JORC Code with definitions of the U.S. Securities and Exchange Commission. Mineral resources and reserves tabulated are the portion of the mineral resources and reserves to which Royal Gold’s stream or royalty interest applies. Metallurgical recoveries are not included in the calculation of contained metals as these can be variable within a deposit depending on material type and process path. Recoveries are generally unknown for projects with resources that do not have processing methods identified. Mineral resources are tabulated in addition to (exclusive of) mineral reserves. Mineral resources which are not mineral reserves do not have demonstrated economic viability. “Contained ounces” or “contained pounds” do not take into account recovery losses in mining and processing. Property-Specific Footnotes Metal prices are dollars per ounce for gold (Au) and silver (Ag) and dollars per pound for copper (Cu), lead (Pb), zinc (Zn), and nickel (Ni). GOLD 1. Andacollo resources and reserves are reported under CIM standards and have an effective date of 12/31/2024. Metal prices used for resources and reserves determination were $1,660 Au and $3.50 Cu and the cut-off grade for reserves averages 0.192% Cu. Our stream interest covers gold only. Copper resources and reserves exist but are not presented because they are not subject to our stream. Our stream interest at Andacollo is 100% of payable gold until 900,000 ounces are delivered, 50% thereafter. Introduction Attributes of Our Business Portfolio Overview Expected Performance and Outlook Portfolio Details Reference Materials 175