Mr. Louis Castro reports

OROSUR MINING INC - CONSULTANTS EXERCISE OPTIONS

Orosur Mining Inc. has issued 666,664 common shares of no par value, representing 0.17 per cent of the company's current issued share capital, following the exercise of options by consultants of the company as follows.

Exercise price      Options

$0.06               666,664

No current members of the board have exercised any options but the company's external chief financial officer, Omar Gonzalez, has exercised 166,666 options. Following this transaction, Mr. Gonzalez holds 166,666 common shares, representing 0.04 per cent of the company's issued share capital.

Application has been made for the 666,664 common shares, which rank pari passu with the existing common shares in issue, to be admitted to trading on the AIM (Alternative Investment Market). It is expected that admission will become effective and dealings will occur at 8 a.m. United Kingdom time on or around Dec. 15, 2025.

Following admission and for the purposes of the disclosure guidance and transparency rules, the company will have 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 to their interest in, the issued share capital of the company.

Following admission, the company will have 2,755,004 options outstanding.

About Orosur Mining Inc.

Orosur Mining is a minerals explorer and developer currently operating in Colombia, Argentina and Nigeria.