Gunnison Copper Announces Updated Preliminary Economic Assessment of Its Flagship Gunnison Copper Project Reporting Post-Tax NPV8 of US$2.0 Billion

About this update from Gunnison Copper Corp.

[{"type":"text","content":"Phoenix, Arizona--(Newsfile Corp. - February 25, 2026) - Gunnison Copper Corp. (TSX: GCU) (OTCQB: GCUMF) (FSE: 3XS0) ("Gunnison" or the "Company") is pleased to announce the results of an updated NI 43-101 Preliminary Economic Assessment ("PEA" or "2026 PEA") on its 100%-owned Gunnison Copper Project in the Cochise Mining District, Arizona, United States ("Gunnison Project"). The PEA supersedes the previous PEA on the Gunnison Project released in December 2024 (the "2024 PEA") in all respects. All dollar amounts are in US dollars and "tons" refer to U.S. short tons (1 short ton equals approximately 0.91 metric tonnes or 2000 lbs).","length":708,"tagName":"p"},{"type":"text","content":"Highlights:","length":11,"tagName":"p"},{"type":"list","items":[{"val":[{"type":"text","content":"Conventional open pit, heap leach, SX/EW operation producing 99.999% pure copper cathode intended to supply United States energy, data center, manufacturing, and defense supply chains","length":183,"tagName":"p"}]},{"val":[{"type":"text","content":"Straightforward mine plan consists primarily of oxide copper mineralized material with a life of mine material placed on the leach pad of 541 million tons at 0.43% total copper grade, including 25 million tons at 0.85% total copper grade from the Strong & Harris satellite deposit","length":284,"tagName":"p"}]},{"val":[{"type":"text","content":"Primary crushing on all, and secondary crushing on some material to improve copper recoveries","length":93,"tagName":"p"}]},{"val":[{"type":"text","content":"Average annual copper cathode production of 174 million pounds ("lbs") (87 thousand tons) for the first 15 years; enough to potentially supply over 11% of the current United States domestic refined copper metal production from mineralized material1. Total copper produced 3.2 billion lbs over a 21 year mine life.","length":323,"tagName":"p"}]},{"val":[{"type":"text","content":"Cash costs of $1.69, Sustaining Cash Costs of $2.00, and All-In Sustaining Cash Costs of $2.06 per pound of copper produced are in the lower half of the cost curve for copper mines globally.","length":190,"tagName":"p"}]},{"val":[{"type":"text","content":"Robust project economics in a variety of copper price environments, including $4.60/lb base case:","length...

More updates from Gunnison Copper Corp.