

Drilling identifies major epithermal gold/silver system. NI 43-101 Technical Report completed and filed.

LONDON, UK / ACCESS Newswire / July 13, 2026 / Orosur Mining Inc. (TSX.V:OMI)(AIM:OMI)(OTC PINK:OROXF) TR-1: Standard form for notification of major holdings NOTIFICATION OF MAJOR HOLDINGS (to be sent to the relevant issuer and to the FCA in Microsoft Word format if possible) i 1a. Identity of the issuer or the underlying issuer of existing shares to which voting rights are attached ii : OROSUR MINING INC 1b.

Orosur Mining Inc (AIM:OMI, TSX-V:OMI) said fresh drilling at its APTA prospect in Colombia has reshaped its view of the target, with the first new hole returning a broad gold intersection and opening three areas for follow-up. Hole MAP-106A returned 229.7 metres at 0.88 grams per tonne gold, including several higher-grade intervals: 6.85 metres at 2.15 g/t, 59.2 metres at 2.02 g/t, 7.65 metres at 7.07 g/t and 4.7 metres at 3.95 g/t.

First new hole at APTA (MAP-106) returns 229.7m @ 0.88g/t Au. Numerous higher-grade intervals within broader intersection, including: o 6.85m @ 2.15g/t Au o 59.2m @ 2.15g/t Au o 7.65m @ 7.07g/t Au o 4.7m @ 3.95g/t Au Results have substantially enhanced the prospectivity of APTA with three areas of potential requiring follow up.

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.

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.
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