Increasing our underlying per-share value by acquiring a diverse portfolio of royalties and streams

Vancouver, British Columbia: Metalla Royalty & Streaming Ltd. (“Metalla” or the “Company”) (NYSE American: MTA) (TSXV: MTA) is pleased to report the following recent developments in its royalty portfolio: • Côté & Gosselin – Franco-Nevada announces acquisition of existing Côté & Gosselin gross margin royalty for $1.05 billion. • Endeavor – Commissioning underway and first cash flow scheduled in June. • Joaquin – Drilling confirms significant extensions to the La Negra deposit.

Vancouver, Canada: Metalla Royalty & Streaming Ltd. (“Metalla” or the “Company”) (TSXV: MTA) (NYSE American: MTA) announces its operating and financial results for the three months ended March 31, 2025. For complete details of the condensed interim consolidated financial statements and accompanying management's discussion and analysis for the three months ended March 31, 2025, please see the Company's filings on SEDAR+ (www.sedarplus.ca) or EDGAR (www.sec.gov).

Vancouver, Canada: Metalla Royalty & Streaming Ltd. (“Metalla” or the “Company”) (TSXV: MTA) (NYSE American: MTA) announces its operating and financial results for the year ended December 31, 2024. Metalla has also filed with the U.S. Securities and Exchange Commission (the “SEC”) its SEC Annual Report on Form 40-F for the year ended December 31, 2024. The Form 40-F includes the Company’s Annual Information Form, audited financial statements and management’s discussion & analysis for the year ended December 31, 2024. For complete details of the consolidated financial statements and accompanying management's discussion and analysis for the year ended December 31, 2024, please see the Company's filings on SEDAR+ (www.sedarplus.ca) or EDGAR (www.sec.gov). Shareholders are encouraged to visit the Company's website at www.metallaroyalty.com.