Mariana Minerals, led by CEO Turner Caldwell, is operating what it says is the world’s first autonomous mine, extracting and refining copper in Utah to meet surging demand for the costly metal.

Electrochemical copper refining harnesses controlled redox reactions to convert impure blister copper into high-purity metal, chiefly through electrorefining and electrowinning techniques. In ...

Washington's efforts to rebuild the domestic copper industry are colliding with Chinese dominance in a metal central to ...

Acid, not copper, may be the market's most important signal as sulphur reshapes concentrate pricing and margins.

A pound of copper now costs more than ever before — and there’s more to the story than just the artificial-intelligence race. Sulfuric acid, a critical component in copper refining, has been in ...

Company to invest $70 million in Charleston facility expected to create 45 jobs Red Metals, a next-generation copper manufacturer, today announced $10 million in Seed funding and plans to build a $70 ...

Still Bright hopes its chemical process could help replace polluting copper smelters. Demand for copper is surging, as is pollution from its dirty production processes. The founders of one startup, ...

Mining mergers are back in style. Rio Tinto, the industry’s fourth-most valuable company, has confirmed it is in talks to acquire Glencore, a Swiss competitor, and thus create the world’s biggest ...

Copper may be in its golden era in early 2026. Prices surged after a year defined by supply disruptions, strong institutional ...

Copper futures on Comex settled at a record high of $6.53 a pound on Tuesday. A pound of copper now costs more than ever before - and there's more to the story than just the artificial-intelligence ...