Metalla Royalty & Streaming Ltd.

Notes:

1. AgEq is defined by Polymetals in their October 9, 2024 Press Release.

2. Figure 2 depicts an area that is larger than the coverage of the Metalla royalty, and is provided for informational purposes.

3. AgEq is defined by Unico in their August 20, 2024 Press Release. This Mineral Resource estimate covers an area that is larger than the coverage of the Metalla royalty, and is provided for informational purposes.

4. Pan American Silver Corp. prepared a more recent Technical Report and Feasibility Study in January 2018, however, this report was focused on an underground mine at the Moarocha vein, which is not the subject of the Metalla Royalty.

Metalla has limited, if any, access to the properties on which Metalla holds a royalty, stream or other interest. Metalla is dependent on (i) the operators of the mines or properties and their qualified persons to provide technical or other information to Metalla, or (ii) publicly available information to prepare disclosure pertaining to properties and operations on the mines or properties on which Metalla holds a royalty, stream or other interest, and generally has limited or no ability to independently verify such information. Although Metalla does not have any knowledge that such information may not be accurate, there can be no assurance that such third-party information is complete or accurate. Some information publicly reported by operators may relate to a larger property than the area covered by Metalla's royalty, stream or other interests. Metalla's royalty, stream or other interests can cover less than 100% and sometimes only a portion of the publicly reported mineral reserves, resources and production of a property.

Unless otherwise indicated, the technical and scientific disclosure contained or referenced in this alert, ‎including any ‎references to mineral resources or mineral reserves, was prepared in accordance with Canadian ‎NI 43-101‎, which differs significantly from the requirements of the U.S. Securities and ‎Exchange Commission (the "SEC") ‎applicable to U.S. domestic issuers. Accordingly, the scientific and technical ‎information contained or referenced in this alert may not be comparable to similar information made ‎public by U.S. companies subject to the reporting and ‎disclosure requirements of the SEC.

‎"Inferred mineral resources" have a great amount of uncertainty as to their existence and great uncertainty as to ‎their ‎economic and legal feasibility. It cannot be assumed that all or any part of an inferred mineral resource will ‎ever be ‎upgraded to a higher category. Historical results or feasibility models presented herein are not guarantees ‎or expectations of ‎future performance.‎