Gold Hart Copper and Rhyolite Resources Enter into Definitive Arrangement Agreement; Gold Hart Completes Diamond Drill Hole at Tolita Gold-Copper-Moly-Silver Asset in Vicuna District of Chile

• On 7 Apr 2026 Gold Hart Copper Corp. signed a definitive Arrangement Agreement to acquire 100 % of Rhyolite Resources Ltd., issuing one Gold Hart share for every 2.6 Rhyolite shares.
• The deal follows an oversubscribed $18.61 M financing announced on 16 Mar 2026 and is slated to close in late Q2 2026, pending shareholder and regulatory approvals.
• Drilling update: completed diamond hole TOLDDH01 (1,051 m) showing extensive porphyry‑style veining over ~700 m; a second hole (TOLDDH04, 551 m) provided deep‑hole data despite weaker signals.
• Immediate next step: reverse‑circulation (RC) drilling targeting a high‑grade trench that previously returned up to 52 g/t Au eq (including 3.99 % Cu). RC rig is water‑free, fast and cheap – ideal for the shallow target.
• Additional work: launch of a comprehensive geochemical survey on the Nessa Complex with multiple >1 g/t Au and >2 % Cu samples, expanding the land base to 13,500 ha (+330 %).

• Deal certainty: The arrangement agreement moves the transaction from a letter‑of‑intent stage (Feb 2026) to a binding commitment, removing significant execution risk.
• Financing sufficiency: The $18.6 M raise fully funds the acquisition and provides runway for accelerated exploration, eliminating the earlier financing shortfall that led to the March 2025 private‑placement cancellation.
• Exploration upside: High‑grade trench results (52 g/t Au eq) are materially above typical porphyry averages and could underpin a near‑term resource upgrade if confirmed by RC drilling. The deep diamond hole adds confidence to the large‑scale porphyry model.
• Market perception: The news is new and exceeds prior expectations (previously only a letter agreement). It introduces tangible, high‑grade drill data and a funded path forward – a material positive catalyst for valuation.

Gold Hart Copper Corp., through its acquisition of Rhyolite Resources, controls the Tolita (Vicuña District) and Nessa Complex assets in Chile’s prolific Domeyko Fault corridor. Tolita hosts a large porphyry system with both bulk‑tonnage copper‑gold potential and a shallow high‑grade Au‑Cu zone. Nessa is an expanding land package with promising surface geochemistry for Cu–Au.