Orosur Mining develops Pepas West

Pepas West Developing More gold intercepts at Pepas West Pepas West picture continues to deve Drilling to test recently discovered high grade (>70g/t Au) surface samples along strike of Pepas West LONDON, UK / ACCESS Newswire / July 8, 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 on 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 undertaken at the prospect is well advanced.

Figure 1. Anzá Project Pepas The Company's primary focus since reassuming control of the Project in late 2024, was to explore the immediate area of Pepas, ultimately leading to the publication of a maiden MRE for the Pepas gold deposit on February 10 th , 2026. Following completion of the MRE drillout in late 2025, the Company then embarked on a semi-regional drilling program around the Pepas deposit.

The objective of this drilling program was to better understand the