Greenheart Gold Commences Initial Diamond Drill Program at the Tosso Creek Project, Suriname, Targeting Below Recent Trench Results That Include Intervals of 56.0 M @ 0.97 g/t Au and 7.0 M @ 4.57 g/t Au

Greenheart Gold Inc. (GHRT) has initiated a 2,000-meter diamond drilling program at its Tosso Creek Project, beginning at the Walaba target with subsequent drilling planned for the Swalanga target. The company’s release highlights significant trenching results from both targets, which have defined broad zones of gold mineralization with potential for higher-grade shoots.

Key trench intercepts include 56.0 m @ 0.97 g/t Au at Swalanga and multiple intervals at Walaba, including 7.0 m @ 4.57 g/t Au. Drilling objectives focus on evaluating structural controls, demonstrating continuity at depth, and providing geological data for future planning.

Other exploration updates note that Maconia trenching is largely complete with assays pending, and Sevil has completed early work identifying a target near a granitoid/volcano-sedimentary contact. Assay methodology follows standard fire assay with atomic absorption finish, with QA/QC protocols including coarse blanks, reference materials, and overlimit gravimetric re-assays. Significant intervals use a 0.30 g/t Au cutoff (min 6.0 m length, max 6.0 m internal waste) and included intervals use a 1.00 g/t Au cutoff.

Greenheart Gold Inc. (GHRT) has commenced its Tosso Creek drill program, a move that directly follows previously announced plans. Historical news from February and April 2026 explicitly outlined a Q2/Q3 2026 mobilization for Tosso Creek drilling. The company’s trench results provide necessary geological context but do not alter the exploration stage or provide new financial metrics.

The news confirms management is executing on schedule despite prior mentions of assay delays and weather disruptions. There is no new capital raise, no change in strategic direction, and no resource estimate update. The market was already priced in for this exploration activity.

Greenheart Gold Inc. (GHRT) is an early-stage exploration company operating across the Guiana Shield in Guyana and Suriname. Its portfolio includes the Majorodam, Igab, and Tosso Creek properties in Suriname, as well as the Gold Hill project in Guyana. The company’s corporate strategy emphasizes a rapid nine- to 12-month assessment cycle designed to quickly advance viable projects or divest underperforming ones.

Flagship assets include Majorodam in Suriname, where a 10,000-meter reverse circulation (RC) program targets the Heuvel West and East zones, along with the newly defined Gowtu soil anomaly. At Igab in Suriname, the company has identified high-grade trench intercepts at the Koela targets. Meanwhile, Tosso Creek, located in Guyana and Suriname, is transitioning from trenching to diamond drilling to test the Walaba and Swalanga targets.