Orosur Mining (OMI) Investor update summary

Operational highlights

• Achieved full ownership of both Anzá (Colombia) and El Pantano (Argentina) projects, accelerating timelines and consolidating assets.

• Pepas prospect at Anzá delivered strong drilling results, with a maiden resource expected in January and a NI 43-101 technical report to follow.

• El Pantano advanced to first-ever drilling, with early indications of a mineral system and potential for both gold and silver credits.

• Strengthened balance sheet through a CAD 20 million raise and release of legacy provisions, ensuring funding for 2026 programs.

• Expanded and diversified shareholder base, increasing liquidity and institutional participation.

Project development and exploration

• Pepas is positioned for near-term, low-cost production, leveraging proximity to infrastructure and potential toll treatment agreements.

• APTA prospect is nearing resource status, with drilling planned for Q1/Q2 to confirm geological models and expand inventory.

• El Cedro porphyry system mapped and sampled, with high-grade gold in soils and rock chips; drilling planned for Q1, pending geophysical survey logistics.

• El Pantano drilling focused on identifying economic zones within a large mineral system, with assay process adjusted for silver content.

• Both projects to pause for Christmas, resuming in January with continued drilling and exploration.

Financial and strategic outlook

• Current cash position supports operations through 2027 at existing burn rates, reducing need for near-term capital raises.

• Management increasing equity participation via RSUs, aligning interests with shareholders.

• Ongoing engagement with potential toll miners for Pepas, with bulk sampling and metallurgical testing underway.

• Environmental baseline studies and permitting for Pepas to commence post-resource, targeting production in 1.5–2 years under small-scale mining provisions.

• Strategic flexibility maintained for large-scale projects, considering JV, sale, or IPO options for capital-intensive assets.