Orosur Mining (OMI) Investor update summary

Corporate and financial transformation

• Achieved a transformative capital raising, resulting in a $17 million cash position and potential for an additional $2–3 million from in-the-money warrants, with a market cap of $135 million as of October 14, 2025.

• Balance sheet improvements include positive net assets in Uruguay and a diversified shareholder base across institutional, family office, and retail investors.

• Holds 385 million shares, 17.9 million options/RSUs/DSUs, and 22.3 million warrants.

• Three brokers now cover the company, enhancing market visibility and analyst coverage.

• Board and management team with significant technical and commercial expertise.

Project portfolio and operational progress

• Focused on two flagship gold projects: Anzá in Colombia (advanced, near resource definition) and El Pantano in Argentina (large-scale, early-stage, drilling imminent), with additional assets in Nigeria.

• Anzá project includes three key prospects: Pepas (high-grade, near-surface, moving to resource), APTA (underground, resource targeted next year), and El Cedro (large porphyry, undrilled, geophysics planned).

• Pepas: Over 55 holes drilled, high-grade gold from surface, rapid progress toward maiden resource after less than 12 months and 7,000m of drilling, with MRE process starting and metallurgical drilling underway.

• El Pantano JV structure provides a pathway to 100% ownership, with first drilling phase focused on geological understanding and campaign to begin late October 2025.

• All permits and land access agreements secured for El Pantano; fast assay turnaround expected.

Operational milestones and timelines

• Pepas MRE and 43-101 report expected Q4 2025, permitting and concept studies to follow.

• El Cedro drilling and APTA MRE targeted for 2026.

• El Pantano drilling campaign to begin late October 2025, aiming for completion by late January 2026.

• Resource consultants are assessing Pepas imminently; APTA drilling to follow, with El Cedro geophysics and drilling planned for Q1 next year.

• Exploration around Pepas and regional expansion will proceed after initial resource definition, with a focus on systematic, data-driven drilling.