Orosur Mining (OMI) Investor update summary

Strategic project updates

• Regained 100% control of the flagship Anzá gold project in Colombia after partners Agnico and Newmont exited; transaction completion expected early to mid-November, enabling immediate mobilization and drilling at Pepas.

• Substantially increased landholding in Colombia’s Mid-Cauca Belt, now among the largest in the region, with new applications acquired from MMA.

• El Pantano project in Argentina is ready for drilling pending permits, with activity likely to begin early next year.

• Nigerian lithium project remains on hold due to market conditions, but may be revisited in the medium term.

Exploration and drilling plans

• Drilling at Pepas to commence within weeks, targeting high-grade gold zones identified in previous campaigns; drill rigs and crews are on standby.

• Initial Pepas drilling will focus on resolving orebody orientation and expanding on promising results (e.g., 150m at 3 g/t Au from surface).

• APTA prospect is being advanced toward NI 43-101 resource status, with external consultants engaged for modeling.

• El Cedro/El Roble porphyry system identified as a large, high-potential target for future mapping and sampling.

Financial and operational outlook

• Recent capital raises were intentionally small to fund transaction completion and initial drilling; warrants attached could provide an additional $1.2 million if exercised.

• Funding needs for the next year estimated at $1.5–$2 million, primarily for drilling at Pepas, APTA, and El Pantano.

• Exploring institutional investment and potential joint venture partners, but prefer to advance projects further before entering JV discussions.

• Drilling costs at Pepas estimated at $140,000 for the first 800 meters, with all-in costs about 20% lower than previous years.