Gold Hart Copper Announces Results From Drill Hole DDHTOL01 at Tolita Asset in Vicuna District of Chile Including Longest Interval to Date

Gold Hart Copper Corp. announced the first results from diamond drill hole DDHTOL01 at its Tolita porphyry asset in Chile’s Vicuña District. The hole intersected a 738-meter continuous interval of mineralization with no barren zones, making it the longest intercept drilled to date at the property. The core showed multiple veinlet generations, stockworks, and porphyry-type alteration, confirming a fertile system to a kilometer depth. However, the release contains no assay grades — only a statement that “continuous metal anomalies” were identified throughout most of the hole.

Alongside the Tolita update, the company confirmed the completion of its previously announced acquisition of Rhyolite Resources Ltd. (1 HART share for every 2.6 Rhyolite shares) and provided progress reports on the Nessa geochemical survey (750 samples collected, results expected shortly) and the Copioso concession application. Seven reverse-circulation holes targeting the high‑grade trench at Tolita (surface up to 52 g/t Au‑eq) have been completed and results are expected in the coming month.

Gold Hart Copper Corp. (HART) released an incrementally positive update regarding its DDHTOL01 drill hole, which returned a 738-m mineralized intercept. The company had previously guided that the hole would reach 1,053 m and enter a strongly altered zone, a milestone the market was aware of since early 2026. While the new intercept extends the known system and demonstrates continuity, the release lacks assay data, leaving the question of whether the rock carries economic grades unanswered.

The closing of the Rhyolite transaction was fully expected and adds no new information to the valuation picture. In the context of the stock’s recent correction from $0.42 to $0.23, the absence of grade results means the release serves as a progress report rather than a catalyst for a sustained rally.

Gold Hart Copper Corp. (HART) is a junior explorer focused on copper-gold porphyry and epithermal systems in Chile’s prolific Vicuña District. The company holds a 100%-owned, royalty-free land package totaling 135 km², which includes over 34.8 km² at its flagship Tolita project and the Nessa complex.

The Tolita project is a classic porphyry target featuring a 4.5 km² induced-polarisation anomaly and surface gold-copper grades up to ~52 g/t Au-eq. Deep drilling has confirmed a kilometre-scale mineralized system. Two prior diamond holes intersected 360 m and 231 m of Au-Cu-Mo mineralization at grades around 0.25–0.62 g/t Au-eq. The latest hole, DDHTOL01, extends the known system to a 738 m continuous intercept, for which no grades have yet been reported. The project is analogous to other large porphyry systems in the belt and remains open in all directions.

Other assets in the portfolio include: - Nessa Complex: High-grade Au-Ag-Cu surface showings (up to 9.7 g/t Au, 4.7% Cu, 968 g/t Ag), now covered by a large-scale soil survey. - Toro: An epithermal gold-silver target with historic drill intercepts. - Zelma, Cachitos, Casale Sur: Strategic claims adjacent to Barrick/Newmont’s Norte Abierto JV. - Copioso: A newly staked historic gold-copper-silver asset with a non-compliant historical resource of 40-50 Mt at 1.0-1.2% Cu and 0.5-1.0 g/t Au.

Gold Hart is at an early exploration stage, with no mineral resources or reserves established. The company is led by CEO Isaac Maresky, VP Rodrigo Díaz Tillería, and EVP Jonathan Warner. The advisory board includes notable mining figures such as Robert Cudney of Northfield Capital and Sean Roosen, founder of Osisko, who joined in 2026.