Exercise of Warrants

London, 6 January, 2025, Orosur Mining Inc. ("Orosur" or "the Company") (AIM/TSXV: OMI), a minerals explorer and developer with projects in Colombia, Argentina and Nigeria, advises that, following an exercise of 179,856 warrants at an exercise price of US$0.0494 (approximately 3.984p) each, the Company will, issue 179,856 new common shares of no par value each ("Common Shares") for a total consideration of US$8,885.

Application will be made for the 179,856 Common Shares, which rank pari passu with the existing Common Shares in issue, to be admitted to trading on AIM ("Admission"). It is expected that Admission will become effective and dealings will occur at 8:00am UK time on or around 10 January 2025.

Following Admission, the Company's new issued share capital will comprise 261,271,186 Common Shares. This share figure includes the shares to be admitted on 7th Jan following the exercise of warrants announced on 30th December 2024. When calculating voting rights, shareholders should use this figure as the denominator for the calculations by which they will determine if they are required to notify their interest in, or a change in their interest in, the share capital of the Company under the FCA's Disclosure and Transparency Rules.