Orosur Mining Inc Announces Maiden Mineral Resource Estimate at Pepas
High-Grade Maiden Resource at Pepas Validates Colombia Pivot, but Small Ounce Count Tests Valuation Premia
The most recent news (February 10, 2026) announces the Maiden Mineral Resource Estimate (MRE) for the Pepas deposit at the 100%-owned Anzá Project in Colombia. The estimate, based on a $3,000/oz gold price and an open-pit scenario, includes: - Indicated Resources: 1.14 million tonnes at 5.46 g/t Au for 201,000 ounces. - Inferred Resources: 0.19 million tonnes at 2.99 g/t Au for 18,000 ounces. - The resource is calculated using a 0.92 g/t Au cutoff grade. - CEO Brad George stated the company will immediately move Pepas into economic study and permitting stages while expanding exploration to other prospects within the Anzá project.
This MRE is a material milestone, yet the results are a "double-edged sword" regarding valuation: - Quality vs. Quantity: A grade of 5.46 g/t Au for an open-pit resource is exceptionally high (typically 1.0-1.5 g/t is considered good). This suggests potentially high margins and low capital intensity for a starter operation. - Scale Concerns: The absolute size of 219,000 total ounces is small for a company with a ~$225 million market capitalization. To justify the current valuation, the market is pricing in significant immediate growth at the APTA and El Cedro prospects. - Conservative Classification: Over 90% of the resource is in the Indicated category, which provides higher confidence for the upcoming economic studies. - Economic Assumptions: The use of a $3,000/oz gold price for the MRE pit shell is aggressive compared to the standard $1,700-$1,900/oz used by peers, which likely expanded the mineable volume but could be a risk if gold prices revert.
Orosur Mining is a South American focused gold explorer. Its flagship asset is the Anzá Project in the Mid-Cauca belt of Colombia. After years as a minority partner, Orosur regained 100% ownership in late 2024 from Newmont and Agnico Eagle. The project includes the high-grade Pepas discovery and the larger, more complex APTA deposit. The company also holds the El Pantano project in Argentina (51% interest, earning to 100%) and a lithium project in Nigeria.