Mr. Louis Castro reports

OROSUR MINING INC ANNOUNCES TOTAL VOTING RIGHTS

Following the admission of 666,664 common shares of no par value on Dec. 16, 2025, pursuant to the exercise of options by consultants of Orosur Mining Inc., as announced on Dec. 15, 2025, the company has 392,689,176 common shares in issue. There were no warrants exercised and therefore no common shares issued during December from the company's block listing.

For the purposes of the disclosure guidance and transparency rules, the company has 392,689,176 common shares in issue. Shareholders may 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 (Financial Conduct Authority) disclosure and transparency rules.