Orosur Mining Inc.·Basic Materials

LONDON, UK / ACCESS Newswire / May 19, 2026 / Orosur Mining Inc. ("Orosur" or the "Company") (TSXV:OMI)(AIM:OMI) announces that the Company has issued 2,850,000 Common Shares ("Shares") representing 0.72% of the Company's current issued share capital, following the exercise of 2,850,000 restricted stock units ("RSUs") by directors, officers, and consultants of the Company. All of the Directors will be retaining their Shares and not selling after exercise, other than Thomas Masney, one of the Company's Non-Executive Directors, who will sell 75,000 Shares to cover the tax due on the Shares issued to him.

Pepas West Expanding Ongoing drilling at Pepas West continues to show positive results: PEP085, 16.1m @ 2.68g/t Au PEP087, 21.7m @ 1.42g/t Au PEP088, 9.8m @ 1.41g/t Au PEP090, 23.45m @ 2.98g/t Au Hole PEP090 stepped out 30m north of previous holes, demonstrating extension potential. Rig currently drilling south of Pepas, will return to Pepas West in several weeks.

Granting of RSUs LONDON, UK / ACCESS Newswire / May 1, 2026 / Orosur Mining Inc. ("Orosur" or "the Company") (TSXV:OMI)(AIM:OMI) announces the granting of an aggregate of 13,650,000 Restricted Stock Units ("RSUs") to directors, officers, employees and consultants of the Company, upon recommendation of the Company's Remuneration Committee, in recognition of the Company's progress and as incentivisation for future performance. At the Company's AGM held on 17 December 2025, shareholders voted to permit the Company to maintain a "rolling" securities-based compensation plan, reserving for issuance, a maximum of 10% of the issued shares of the Company from time to time.

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.

LONDON, UK / ACCESS Newswire / April 29, 2026 / Orosur Mining Inc. ("Orosur" or "the Company") (TSX-V:OMI)(AIM:OMI) the minerals explorer and developer with operations in Colombia and Argentina, announces its unaudited results for the quarter ended February 28th, 2026. All dollar figures are stated in US$ unless otherwise noted.

Soil sampling completed at El Cedro south - prospectivity enhanced Aeromag over El Cedro and APTA now completed Pepas rig moved from Pepas West to new target LONDON, UK / ACCESS Newswire / April 28, 2026 / Orosur Mining Inc. ("Orosur" or the "Company") (TSXV:OMI)(AIM:OMI), is pleased to announce an update on the progress of exploration activities at the Company's exploration project at Anzá in Colombia ("Anzá"). Anzá - Colombia The Anzá Project in Colombia comprises a number of granted exploration titles and applications totalling roughly 330km2, within the Mid-Cauca gold belt, west of the city of Medellin.
Orosur Mining Inc. explores, develops, and produces gold projects in South America. Its principal project is the Anzá exploration gold project covering an area of 231 square kilometers located in the Middle Cauca Belt in Antioquia, Colombia. The company was formerly known as Uruguay Mineral Exploration Inc. and changed its name to Orosur Mining Inc. in January 2010. Orosur Mining Inc. was incorporated in 1996 and is based in Vancouver, Canada.