Announcement • Jun 25
Omai Gold Mines Corp. Reports Assay Results from Ongoing Drilling Program At Omai Gold Project in Guyana
Omai Gold Mines Corp. announced assay results from six additional diamond drill holes from the ongoing 50,000m drilling program at its 100% owned Omai Gold Project in Guyana, South America. Hole 26ODD-185 in central Wenot intersected 15 discrete gold zones starting at 200m downhole with 1.63 g/t Au over 23.6m and ending 340m further downhole with 7.22 g/t Au over 2.4m. Five rigs continue drilling at Omai. To date this year, 58 holes have been completed totalling 27,770 metres. Hole 26ODD-208, testing the depth potential of the Gilt Deposit, is progressing well having already reached a depth of 742m. Highlights from the recent drilling include: Hole 26ODD-185 7.26 g/t Au over 34.8m including 19.94 g/t Au over 2.5m, including 54.05 g/t Au over 1.5m, including 9.83 g/t Au over 3.0m, 15.89 g/t Au over 1.9m, 1.71 g/t Au over 14.0m, 2.10 g/t Au over 10.9m, 7.22 g/t Au over 2.4m, 2.28 g/t Au over 6.9m. Hole 26ODD-183 2.96 g/t Au over 14.3m, 1.57 g/t Au over 22.5m including 3.94 g/t Au over 5.5m. Hole 26ODD-184 2.47 g/t Au over 9.6m including 6.86 g/t Au over 2.2m, 3.24 g/t Au over 8.0m. Work continues to progress on the Preliminary Economic Assessment with an estimated 4- to 6-week timeframe. The new mine plan will integrate both the Wenot open pit deposit and the adjacent intrusion-hosted underground Gilt Deposit. The new expanded Mineral Resource Estimate for Omai announced April 14, 2026 will form the basis for the upcoming PEA. The Phase 1 metallurgical test results were provided earlier this week and show 93% to 95% recoveries, demonstrating both Wenot and Gilt deposits are amenable to a standard bottle roll leach and carbon-in-leach (CIL) circuit. Gold dissolution rates were rapid with a 32-hour retention time and the mineralogies for both deposits proved to be clean with no deleterious components. CENTRAL AND WEST CENTRAL WENOT 26ODD-185 (304965E) was collared at Central Wenot and confirms the continuity of mineralization in the main gold zones, up-dip from numerous gold zones encountered in holes 78, 107 and 169. Hole 185 intersected all of the main lithologic units in sequence from north to south, including the volcanics, dike corridor, central contact quartz feldspar porphyry ("CQFP"), protomylonite, sedimentary sequence and through to the southern QFP ("SPOR"). At least 15 discrete gold zones were intersected. The most northerly gold zone within the volcanics, at a vertical depth of approximately -120m, assayed 1.63 g/t Au over 23.6m and included 2.28 g/t Au over 6.9m and 8.41 g/t Au over 1.5m. Numerous gold zones were encountered in the prolific Dike Corridor within the volcanic sequence. The best zone, assaying 7.26 g/t Au over 34.8m, lies at a vertical depth of between -170 to -190m and includes two high grade zones of 19.94 g/t Au over 2.5m and 54.05 g/t Au over 1.5m. Additional zones from the Dike Corridor include 2.10 g/t Au over 10.9m, 15.89 g/t Au over 1.9m, and 1.55 g/t Au over 6.2m. The CQFP assayed 1.71 g/t Au over 14.0m. Within the southern sediments, five gold zones were intersected, the best being 7.22 g/t Au over 2.4m and 0.7 g/t over 9.5m. In the 2024 Preliminary Economic Assessment, the lack of drilling of the sediment-hosted gold zones resulted in a relatively high strip ratio of 7.8 (ratio of waste to mineralized material), since these undrilled areas were treated as waste. However, with last year's drilling and as we continue to increase the drilling density of these southern zones, we expect to further convert "waste" to mineralized material that can be expected to further lower the strip ratio. 26ODD-183, (305030E) drilled from the north, confirms the up-dip continuity of mineralization intersected in the Dike Corridor in hole 119 (3.89 g/t Au over 13.2m and 31.7 g/t Au over 7.5m). Hole 183 intersected six gold zones within the volcanics and Dike Corridor, including 2.96 g/t Au over 14.3m (including 5.40 g/t Au over 5.7m), 2.39 g/t Au over 4.5m and 3.15 g/t Au over 2.6m, approximately 100m vertically above the high-grade intercepts encountered in hole 119. The CQFP assayed 1.57 g/t Au over 22m, 140 m above the intercept of 1.61 g/t Au over 36.4m in hole 119. Two gold zones were intersected within the sediments, the best being 1.10 g/t Au over 8.7m. 26ODD-184 (304630E) is a longer deep hole at West Wenot, collared far to the north and drilling mostly through the volcanics. At the west end of Wenot, most of the gold zones are within the southern sedimentary rock sequence. As a result, hole 184 did not intersect any strong gold zones, however it did identify 8 gold zones within the volcanics, including 2.47 g/t Au over 9.6m, 2.61 g/t Au over 4.5m and 1.45 g/t Au over 6.4m. Many of these correlate well with gold zones above in holes 88 and 93. The CQFP was narrow but an adjacent diorite dike with quartz-ankerite veining and sulphides assayed 3.24 g/t Au over 8.0m. The CQFP and adjacent sheared lithologies assayed 1.05 g/t Au over 8.1m. Four gold zones were intersected in the sediments, the best being 3.53 g/t Au over 3.0m. Wenot Far East Drill holes 186 and 182 were drilled at the far east end of the Wenot deposit, 400m east of the past-producing pit. Hole 25ODD-142 drilled late last year and located only 200m west of hole 186, intersected 11.07 g/t Au over 14.7m at a depth of -220m. This provides considerable incentive to continue exploration in this area, where limited drilling has been done.
