Gunnison Copper Announces Johnson Camp SX Plant Start-Up with First Copper Sales in SeptemberAugust 11, 2025 6:30 AM EDT | Source: Gunnison Copper Corp.Phoenix, Arizona--(Newsfile Corp. - August 11, 2025) - Gunnison Copper Corp. (TSX: GCU) (OTCQB: GCUMF) (FSE: 3XS0) ("Gunnison" or the "Company") is pleased to announce that the solvent extraction (SX) plant and electrowinning (EW) circuit has started with first copper sales expected in September at the Company's Johnson Camp Mine ("JCM"), in so ...