LONDON, UK / ACCESS Newswire / June 1, 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 during May 2026, the Company issued 2,850,000 new common shares of no par value each ("Common Shares") following the exercise of 2,850,000 restricted stock units (as announced on 19 May 2026) and 2,206,000 Common Shares for a total consideration of Cdn$551,500 following the exercise of 2,206,000 warrants at a price of Cdn$0.25 from its block listing announced on 14 January 2026. For the purposes of the Disclosure Guidance and Transparency Rules, the Company has 401,005,074 Common Shares in issue.