Gunnison Copper (TSX: GCU) is a southern Arizona-based copper developer advancing its flagship Gunnison Copper Project, a large-scale open-pit heap leach operation with a ~$2B after-tax NPV outlined in a 2026 PEA and a 21-year mine life. CEO Craig Hallworth spoke to Mining Stock Daily. Topics covered include the company's strategy for securing a domestic acid supply, the I-10 highway realignment process, exploration upside at the high-grade Strong & Harris satellite deposit, and the company's work toward a prefeasibility study targeted for 2028.