Mr. Louis Castro reports

OROSUR MINING INC. DIRECTOR PURCHASE OF SHARES

On Thursday, Nov. 5, 2026, Nick von Schirnding, independent non-executive director of the company, acquired 204,080 common shares at an average price of 9.64 pence per share.

Following this transaction, Mr. von Schirnding has a total beneficial interest in 974,944 common shares, representing 0.22 per cent of the company's issued share capital.

Details of the director dealing are set out in the table at the end of the announcement, which has been provided in accordance with the requirements of the United Kingdom Market Abuse Regulation.

About Orosur Mining Inc.

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