Gunnison Copper (TSX:GCU,OTCQB:EXMGF) is shifting its development strategy for the Gunnison copper project in Arizona, US, laying out plans for a conventional open-pit and heap-leaching operation. In ...

NPV 7% of $4.18 Billion After-tax IRR of 34.2% at $4.30/lb Copper / $2,150 Gold 1.9 year Payback of Initial Capital Costs Initial Capital Estimate of $2.37 Billion After-tax Benefit Cost Ratio of 1.8 ...

When it comes time to fret about minerals critical to the energy transition, lithium, cobalt and nickel may get all the attention, but another metal is keeping plenty of analysts up at night. Though ...

Arizona needs to strengthen aquifer-protection requirements for the massive proposed Copper World mine to guard against groundwater pollution beneath it, Pima County officials say. The county ...

Near Noordover, in the south of Namibia. An updated preliminary economic assessment (PEA) has shown the project to be amenable to bioheap-leaching. The PEA envisages a life-of-mine of 24 years and a ...

Developers of the Copper World complex, where six open pits are planned south of Tucson, may soon get the state groundwater protection permit they need, but that won’t end conflict over the permit.

Base Case $4.30/lb copper, Post-Tax NPV (7%) $694 million and 14.6% IRR with payback at 6.7 years Advancing Clear Path to Near-Term Production of U.S. Refined Copper Cathode Average annual production ...

CASA GRANDE, Ariz. & TORONTO--(BUSINESS WIRE)--Arizona Sonoran Copper Company Inc. (TSX:ASCU | OTCQX:ASCUF) (“ASCU” or the “Company”) an emerging US-based copper developer and near-term producer, ...

The Santa Cruz copper project is poised to become one of the US’s next major domestic producers of refined copper. The highly engineered preliminary economic assessment (June 2025) confirms the strong ...

Equivalent Mill Copper Grade of 0.83% for the First Five Years of Milling and 0.58% for the First Twenty Years of Milling Payable Copper and Gold Production is Estimated to be 4.4 billion Pounds (2.0 ...