Igab Project

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The 95-square- kilometer Igab project is situated in northeast Suriname, approximately 128 km southeast (?) of the capital city of Paramaribo and 30 km south of Newmont’s producing Marion gold mine.  From a regional geological perspective, the project is situated where the sediment packages of the Marowijne Greenstone belt widens and folds around the margin of a batholith. Artisanal alluvial and saprolite mining occurs on and around this regional fold structure, whilst locally the project straddles a contact zone between a large tonalite intrusion underlying the southern portion of the property, and a mafic volcanic/metasedimentary sequence that dominates the majority of the area to the north (see Figure 1). Despite Igab’s favorable geologic setting, proximity to Newmont’s Merian mine and active artisanal mining, to the best of the Company’s knowledge the property has seen little or no historic exploration for primary gold deposits using modern methods, making it an attractive exploration target.

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Exploration work undertaken by Greenheart Gold at Igab to date including 2 phases of soil sampling, trenching, mapping, sampling and detailed drone magnetics have outlined 5 target areas on the project. These targets include Lemon Tree and Samansu in the south and Mokro, Koela and Cannibal Creek in the more remote northern portion of the property (see Figure 2). Unusually heavy rains in the first half of 2025 created some access challenges at Igab, particularly with the more remote northern targets.  As a result, much of the work in early 2025 focused on the targets in the south. At Lemon Tree the company discovered and exposed an area of strongly altered and deformed granitic rock, which returned several mineralized intercepts from channel samples including 31.0 meters (m) grading 1.36 grams per ton of gold (g/t Au) (Figure 3). Approximately 500 m north of this outcrop lies an area where Igab’s titleholder reportedly previously mined gold mineralized smoky grey quartz veins, evidence of which can be seen in quartz float there including meter sized boulders.

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With the onset of the dry season in the second half of 2025, the company was able to refocus on the northern targets including building access roads and a remote camp.  Soil surveys in these areas outlined anomalous gold in soil results extending approximately 1,500 m by 500 m at both Koela and Cannibal Creek. Detailed trenching, sampling and mapping programs at Koela have outlined two areas of roughly parallel north-northwest trending shear zones called Koela East and Koela West, which are approximately 350 m apart as seen in Figure 3. The shear zones have been uncovered over a combined strike length of approximately 500 m. Koela East has been identified in three trenches which intersected 12.0 m grading 4.82 g/t Au, 3.0 m grading 5.58 g/t Au and 4.0 m grading 4.17 g/t Au as well as in numerous grab samples at the discovery outcrop which included 9 assays over 15.0 g/t Au, including one of 90 g/t Au. Koela east is located in a steep canyon that has limited trenching, as such the true width is unknown until drilling starts. [ME2.1]Koela West is highlighted by trenches that include 11.0 m grading 9.48 g/t Au and 11.0 m grading 4.36 g/t Au, including 3.0 m grading 15.29 g/t Au. Trenching and detailed mapping and sampling are now underway at Cannibal Creek, about 3 km to the northwest of Koela, where several similar looking shear zones have been identified (trench assays pending). Greenheart Gold expects to mobilize a drill rig to Igab in April to test the Koela East and West targets with an initial 4,000 m target before moving to test Cannibal Creek and Lemon Tree.

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For additional information on Igab, including Greenheart Gold’s more recent exploration programs and results, please refer to our press releases, which can be found on our website.