Orosur Mining continues APTA delivery

Second hole (MAP107) in current drill phase reports substantial gold intersection of 135m @ 1.91g/t Au, including 49m @ 4.06g/t Au. Hole ended in mineralisation. Currently drilling from the east to test shallower potential.

LONDON, UK / ACCESS Newswire / July 14, 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" or the "Project"). Anzá - Colombia The Anzá Project in Colombia comprises a number of granted exploration titles and applications totalling roughly 330km 2 , within the Mid-Cauca gold belt, west of the city of Medellín. These titles and applications are owned 100% by two Colombian companies, Minera Anzá, and Minera Monte Aguila, both wholly owned subsidiaries of the Company.

Since acquiring 100% control, the Company has focussed its attention on three prospects: Pepas - a shallow, high-grade ore body of gold mineralisation for which the Company has calculated a Mineral Resource Estimate ("MRE"), announced February 10 th 2026. APTA - a high-grade body of gold mineralisation that has to date seen over 39,000m of drilling, with drilling ongoing. El Cedro - a cluster of gold porphyry intrusions in the south of the Project area.

Extensive mapping and sampling programs have been undertaken and planning for the first drill program ever undertaken at the prospect are well advanced. Figure 1. Anzá Project APTA The APTA prospect in the centre of the Project area has over 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