Greenheart Gold Announces the Commencement of Drilling on Two of Its Projects and Provides an Update on Exploration Progress in Suriname and Guyana

Executive Summary

• Diamond drilling has begun at the Majorodam project (Suriname) with three holes totalling 610 m completed; a Phase 2 program of 2,500 m is planned.
• A high‑grade trench intercept was returned from a roadcut at Majorodam: 18.0 m @ 6.39 g/t Au, including 4.0 m @ 24.07 g/t Au.
• The company also started a 1,200 m Phase 1 diamond drill program at Tamakay (Guyana) and provided an update on the Igab project’s soil‑sampling, trenching, and upcoming Q4 drilling.

Key Details

• Majorodam – Diamond Drilling: First ever diamond hole drilled on 15 Aug 2025; three holes completed, total depth 610 m (Phase 2 target 2,500 m).
• Majorodam – Trench Result: Roadcut intersected 18.0 m @ 6.39 g/t Au; within this, a sub‑vertical quartz vein gave 4.0 m @ 24.07 g/t Au.
• Majorodam – Geophysics: Completed high‑resolution low‑altitude drone magnetics survey (50 m line spacing) over Heuvel targets; data being integrated with existing fixed‑wing survey.
• Tamakay – Diamond Drilling: Initiated 1,200 m Phase 1 program in mid‑Aug 2025 to test continuity of known gold‑bearing quartz veins and a shear‑zone target identified by magnetic & IP surveys.
• Igab – Soil & Trench Work: Grid soil sampling (400 m → 200 m spacing) refined five prospects (Lemon Tree, Samansu, Morko, Koela, Cannibal Creek).
  • Lemon Tree trench: 31.0 m @ 1.36 g/t Au (channel sample previously reported). Additional 50 m of altered outcrop identified; drilling planned Q4 2025.
• Igab – Infrastructure & Geophysics: New excavator/bulldozer deployed for access and outcrop exposure; drone magnetics survey underway, completion expected within a month.
• Igab Option Agreement: Signed 1 Sep 2025 with IGAB N.V.; four‑year option requiring US$3.4 M total payments (US$0.4 M, US$1.0 M, US$2.0 M at successive anniversaries) plus contingent considerations tied to future reserves/production.
• Management Appointment: Timothy “Tim” Stubley appointed Senior Manager, Exploration; will oversee exploration activities across the Guiana Shield. Over 15 years of mineral‑exploration experience.
• CEO Comment (Justin van der Toorn): Highlighted positive exploration results and the strategic value of adding an experienced senior manager to drive systematic, technically driven exploration.

Notable Quotes

“We are very pleased to welcome Tim to Greenheart Gold where he will be overseeing the Company's operations across our exploration projects in Suriname and Guyana. As we see continued positive results across the portfolio, we feel that Tim's experience is an ideal addition to our existing team…” – Justin van der Toorn, President & CEO

Materiality Assessment: Non‑Material – Positive (early‑stage exploration updates with encouraging intercepts but no definitive resource or financial impact disclosed).