Orosur Mining Inc Announces APTA Continues to Deliver
Orosur’s Apta step-out MAP107 returned 135.5m at 1.91 g/t gold, including 13.8m at 12.73 g/t.
Orosur Mining Inc. announced assay results from diamond hole MAP107 at the APTA prospect within the Anzá Project in Colombia. The hole was drilled approximately 50 meters south of the discovery hole MAP-106A to test the continuity of higher-grade zones.
The results included a composite intercept of 135.5 m @ 1.91 g/t Au from 111.65 m to 247.15 m downhole. This interval contained several higher-grade internal sections:
- 49 m @ 4.06 g/t Au (from 198.15 m)
- 26 m @ 7.15 g/t Au (from 221.15 m)
- 13.8 m @ 12.73 g/t Au (from 233.35 m)
The hole terminated above the primary target zone due to difficult ground conditions but ended in mineralization, indicating that the mineralized zone remains open at depth. Management stated that deeper high-grade mineralization is more extensive than previously modeled, which supports the potential for a future Mineral Resource Estimate at APTA.
Orosur Mining Inc. is a junior explorer with a maiden resource at Pepas containing 219 koz of gold and an early-stage discovery at APTA. The company’s latest drilling at APTA has not yet defined a resource, but the new hole supports the potential for future resource definition without transforming the current status of the deposit.
The result represents a positive step-out that extends mineralization and demonstrates higher grades than the discovery hole MAP-106A, which returned 229.7 m @ 0.88 g/t Au. This development could increase confidence in the potential for a future resource at APTA.
Geologically, the intercept is encouraging but not definitive. True width and QA/QC gaps prevent the classification of the intercept as material.
Orosur Mining Inc. is a gold explorer that holds 100% ownership of the approximately 330 km² Anzá Project in Colombia’s Mid-Cauca belt. Key prospects within the project include Pepas, which is scheduled to release its maiden Mineral Resource Estimate (MRE) in February 2026; APTA, an epithermal gold deposit with over 39,000 meters of historical drilling; and El Cedro, a porphyry target.
The company also holds a 51% interest in the El Pantano epithermal project in Argentina, with an earn-in option to 100% for US$2 million, following the completion of an early-stage drill program. Orosur has exited its lithium operations in Nigeria, and its legacy Uruguay operation is currently in a creditor-driven wind-up.
Financially, the company reports no revenue. As of February 28, 2026, it held cash of $13.66 million and recorded a net loss of $6.6 million over nine months, presenting material going-concern uncertainty.