Omai Gold Mines files NI 43-101 report for Omai

Executive Summary

• Omai Gold filed an NI 43‑101 technical report supporting a materially larger mineral resource estimate for its 100 % owned Omai gold property in Guyana.
• The inferred resource at the Wenot deposit rose 130 % to 3.72 M oz Au, while indicated resources increased 16 % to 970,000 oz Au.
• Overall combined MRE now totals 2.12 M oz (indicated) and 4.38 M oz (inferred) – a 7 % and 92 % increase respectively versus the February 2024 estimate.

Key Details

• Report filing: NI 43‑101 technical report dated Oct 9 2025 filed on SEDAR+. Prepared under supervision of Eugene Puritch, P&E Mining Consultants (independent qualified person).
• Wenot Deposit – Inferred: 3,717,000 oz Au; 63.4 M t; grade 1.82 g/t Au (+8.5 % vs prior); cut‑off lowered to 0.30 g/t Au (gold price assumption $2,500/oz).
• Wenot Deposit – Indicated: 970,000 oz Au; 20.7 M t; grade 1.46 g/t Au (−1.4 % vs prior).
• Gilt Creek Deposit – Indicated (baseline): 1,151,000 oz Au; 11.1 M t; grade 3.22 g/t Au.
• Gilt Creek Deposit – Inferred (baseline): 665,000 oz Au; 6.2 M t; grade 3.35 g/t Au.
• Assumptions: Gold price increased to $2,500/oz (from $1,850); cut‑off lowered from 0.35 g/t to 0.30 g/t, resulting in higher ounce totals despite lower average grades.
• Depth & geometry: ~60 % of Wenot resource lies >350 m depth; ~30 % west of historic open pit – favorable for initial mining. Potential expansion along ≥2.5 km shear corridor.
• Infrastructure: Existing mine infrastructure (1993‑2005 production of 2.4 M oz) and upcoming paved road connections to Georgetown & Linden.
• Future work: Updated Preliminary Economic Assessment (PEA) slated for early 2026; four active drill rigs targeting PEA optimization, deposit limits, and near‑surface satellite targets.

Notable Quotes

(No direct quotes provided in the release.)