Orosur Mining Inc Announces New Mineralised Zones Discovered at APTA

About this update from Orosur Mining Inc.

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 AuResults have substantially enhanced the prospectivity of APTA with three areas of potential requiring follow up. LONDON, GB / ACCESS Newswire / June 9, 2026 / Orosur Mining Inc. ("Orosur" or the "Company") (TSXV/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" or the "Project"). Anzá - ColombiaThe 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 Medellín. These titles and applications are owned by two Colombian companies, Minera Anzá, and Minera Monte Aguila, both wholly owned subsidiaries of the Company. The latter of these was acquired by Orosur in November 2024 from the Company's previous JV partners, Newmont Mining and Agnico Eagle Mines. Orosur thus owns 100% of the Anzá Project. Since acquiring 100% control, the Company has focussed its attention on three prospects:Pepas - a shallow, high-grade deposit of gold mineralisation for which the Company has calculated a Mineral Resource Estimate ("MRE"), announced February 10th 2026.APTA - a high-grade deposit of gold mineralisation that has to date seen almost 39,000m of historical drilling, and at which drilling has recently recommenced.El Cedro - a cluster of gold porphyry intrusions in the south of the Project area that are currently subject to mapping and sampling programs, with a view to potentially being drilled in the near term.Figure 1. Anzá ProjectAPTAThe APTA prospect in the centre of the Project area has seen almost 39,000m of drilling by various companies since 2012. This work has identified a substantial epithermal gold system. The last phase of drilling was undertaken by the Company's previous JV partner, MMA, from late 2020 through early 2022, at which time the abatement of Covid related operational restrictions allowed MMA field crews to begin to explore the wider Anzá project area. Results from the final holes of this phase of work were announced on 27th June 2022. Upon assuming control of the Project in November 2024, the Company focused most of its resources o...

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