Orosur Mining (TSX-V:OMI) has completed a maiden mineral resource estimate of 201,000 ounces of gold at its Pepas deposit within the Anzá Project in Colombia.
The Anzá Project comprises a number of granted exploration titles and applications totalling roughly 330km2 within the Mid-Cauca gold belt, west of the city of Medellin, Antioquia state, Colombia. Orosur owns 100% of these titles and applications through two Colombian wholly owned subsidiary companies, Minera Anzá, and Minera Monte Aguila.
CEO Brad George says the company’s focus on advancing Pepas to a resource estimate has been validated by the results.
“We will now immediately move Pepas into the economic study and permitting stage, while at the same time expanding our exploration effort to begin testing other prospects within the Anzá project,” George says.
The resource estimate uses a gold price of US$3,000 per ounce and a cut-off grade of 0.92 grams per tonne gold, incorporating mining, processing and transport cost assumptions for a 250,000 tonne per annum operation.
The company reports an indicated mineral resource of 1.14 million tonnes grading 5.46 grams per tonne gold, plus an additional inferred resource of 190,000 tonnes at 2.99 grams per tonne gold for 18,000 ounces.
The resource estimate, completed by Bara Consulting Limited with an effective date of 16 January 2026, assumes extraction via open pit mining to some 100m depth, with mineralisation starting at surface.
The Pepas deposit, discovered in early 2022, lies within the northern portion of the 330-square-kilometre Anzá Project area in Colombia’s Mid-Cauca gold belt, west of Medellin. Orosur owns 100% of the project through two Colombian subsidiaries.
The company commenced focused drilling at Pepas in November 2024 after regaining full ownership of the project, with the 79-hole program totalling 10,592m enabling the maiden resource calculation.
Mineralisation at Pepas occurs as an intermediate sulphidation epithermal gold system hosted in volcaniclastic and epiclastic rocks, with gold grades closely related to quartz veining intensity and sulphide content.
A technical report prepared in accordance with National Instrument 43-101 standards will be filed on SEDAR within 45 days.
This content was created with AI assistance and human editing.
Images: Orosur
