Omai Gold Reports Multi-Zone High-Grade Results at Wenot and Launches 50,000-Metre Drill Programme in Guyana

• Hole 25ODD-119W returned 4.18 g/t Au over 14.6 metres and 3.73 g/t Au over 17.3 metres from multiple mineralised zones at Central Wenot, including a sub-interval of 9.12 g/t Au over 4.1 metres.
• A 50,000-metre diamond drill programme commenced on 14 January 2026, with three drills currently operating and two additional drills on site ready to begin.
• Omai Gold has engaged Objectivity, a geological data analytics consultancy, to support the efficiency of the resource upgrade drill programme using deposit-specific algorithms.
• The primary goal of the 2026 programme is to upgrade the large Wenot Inferred resource to the higher-confidence Indicated category, which is expected to increase the overall resource estimate.
• An updated Mineral Resource Estimate is planned for Q1 2026, to be followed by a Preliminary Economic Assessment in Q2 2026 covering both the Wenot and Gilt deposits.

Omai Gold Mines Corp. (TSXV: OMG | OTCQB: OMGGF) is a Toronto-based Canadian gold exploration and development company advancing the 100%-owned Omai Gold Project in Guyana, South America. The project hosts two orogenic gold deposits, Wenot and Gilt, with a combined global resource of over 2.1 million Indicated ounces and more than 4.3 million Inferred ounces of gold. The Omai Gold Mine previously produced over 3.7 million ounces between 1993 and 2005 before operations ceased when the gold price fell below US$400 per ounce.

High-Grade Results Across Multiple Zones at Central and East Wenot

The standout result from the latest batch of six drill holes came from hole 25ODD-119W, drilled from the northern side of the Wenot Deposit. The hole returned four separate gold-bearing intervals spanning distinct geological zones, most notably 4.18 g/t Au over 14.6 metres within the Dike Corridor and 3.73 g/t Au over 17.3 metres within the adjacent sedimentary sequence. Higher-grade pockets within those intervals reached 9.12 g/t Au over 4.1 metres and 8.61 g/t Au over 5.4 metres respectively. Gold mineralisation was recorded across the Dike Corridor, Central Wenot Contact, and surrounding sediments, with several instances of visible gold noted in the core.

Hole 25ODD-150W3, drilled from the southern side of the deposit, returned 1.94 g/t Au over 30.3 metres within the southern sedimentary sequence, including a high-grade sub-interval of 14.35 g/t Au over 2.5 metres. The company notes that intersections within the southern sediments are evidence of potential mineralisation along the south side of Wenot and can be expected to contribute to reducing the strip ratio as the project progresses. The strip ratio refers to the volume of waste rock that must be removed for every tonne of ore mined, and a lower ratio generally corresponds to reduced mining costs. Additional intersections were also recorded deeper in the hole within the Dike Corridor, with the best being 9.21 g/t Au over 1.05 metres.

In East Wenot, hole 25ODD-157 intersected several gold-bearing zones, including 1.43 g/t Au over 8.0 metres in the sedimentary sequence and multiple intervals within the Dike Corridor. The results of this hole support the interpretation that the primary zones of interest in the area likely dip to the south and need to be drilled from that direction. The company states that additional follow-up holes are planned accordingly.

50,000-Metre Programme Underway with Data Analytics Support and Depth Targets

The 2026 drill programme commenced on 14 January, with 5,395 metres completed in 11 holes as at the date of the release. Three drills are currently operating, with two additional rigs on site and scheduled to begin within days. The 50,000-metre programme is structured across four areas: upgrading the large Wenot Inferred resource, drilling down-dip extensions through the Deep Dike Corridor, testing geophysical anomalies in the surrounding area, and extending the East Wenot extension with an initial nine-hole programme totalling approximately 3,200 metres.

To support the resource upgrade portion of the programme, Omai Gold has partnered with Objectivity, a Sudbury, Ontario-based geological data analytics firm. Objectivity's proprietary software generates deposit-specific algorithms designed to improve expected resource conversion and systematically address gaps within geological models. Their analysis has defined a 59-hole, approximately 32,500-metre programme over the main body of the Wenot deposit. 

President and CEO Elaine Ellingham commented: 

"As Omai continues to report positive drill results from Central and East Wenot, we are excited to have commenced a 50,000-metre diamond drill program to further expand the overall Omai gold resources and continue to unlock value for our shareholders. The primary objective of this current program is to upgrade the large Wenot Inferred resource in order to move the Omai project forward to the next key milestones."

Beyond the resource upgrade work, a dedicated 20-hole, 12,500-metre programme will test down-dip extensions of the Deep Dike Corridor in the north-eastern portion of Wenot, a zone that remains open at depth and has previously returned high-grade intersections at depths of 150 to 200 metres. As the planned drill collars step northward, the holes will also pass through stratigraphy that has seen little or no prior exploration. An additional 1,800 metres will target geophysical anomalies identified through a review of existing geophysical data, including one that correlates with a strong magnetic signature and may represent new zones within either splays off the main Wenot shear or separate satellite zones.

Updated Mineral Resource Estimate Planned for Q1 2026 Followed by Preliminary Economic Assessment in Q2 2026

In August 2025, the company published a 96% increase in the Wenot deposit's Indicated resource to 970,000 ounces at an average grade of 1.46 g/t Au, alongside an Inferred resource of approximately 3.72 million ounces at 1.82 g/t Au. Across the full Omai project, including the adjacent Gilt deposit, the global resource stands at over 2.1 million Indicated ounces averaging 2.07 g/t Au and more than 4.3 million Inferred ounces averaging 1.95 g/t Au. An updated Mineral Resource Estimate is planned for Q1 2026, incorporating the results announced in this release and those from the ongoing 2026 programme. As the 2026 programme is designed to close gaps and extend zones to depth, the updated estimate is expected to grow the overall resource.

Following the resource update, an updated Preliminary Economic Assessment (PEA) is planned for Q2 2026. A PEA is an early-stage study that models the potential economics of a mining operation using current resource data, estimated costs, and prevailing commodity prices. Omai's upcoming PEA will cover both the Wenot open-pit deposit and the Gilt underground deposit in a single integrated study. The company completed 39,000 metres of diamond drilling in 2025 ahead of these planned studies.

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