LONDON, UK / ACCESS Newswire / April 30, 2026 / Orosur Mining Inc. ("Orosur" or "the Company") (AIM:OMI)(TSXV:OMI), a minerals explorer and developer with projects in Colombia and Argentina, advises that for the purposes of the Disclosure Guidance and Transparency Rules, the Company has 395,949,074 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 Disclosure and Transparency Rules.