The impacts of Resolution Copper's water use would be severe. And thanks to Arizona law, there's not much we can do about them.

The smelter at Superior, completed in 1924, and the surrounding roaster, furnaces and converter operated for nearly half a century before the Magma Copper Co. closed them in 1971.

The release of the Final Environmental Impact Statement marks one of the final steps toward transferring Oak Flat to Resolution Copper.

The U.S. Forest Service is expected to release the final review of a plan that would open sacred Apache lands to copper mining.

One of the only two copper smelters in the country is set to close in outback Queensland in 2030, and experts worry the commodity's production could be taken out of Australia's hands.

The United States has only two copper smelters — in Utah and Arizona — and both are at total capacity. Critics surmise that Resolution Copper will likely send raw material to China, where the world’s ...

The district court judge in Phoenix called for a 60-day delay to allow advocates for Oak Flat to review an upcoming U.S. Forest Service environmental impact statement.

Built in 1972, the 381-metre chimney located at the Copper Cliff smelter is the tallest in the Western Hemisphere. The Superstack was built to spread sulphur dioxide emissions, diluting them over ...

Just north of Tucson, San Manuel's signature smelter stacks were demolished by BHP Copper on Jan. 17, 2007, signaling the end of the age of mining in a community built around copper a half-century ...

“Adani Enterprises Limited is preparing to start a major smelter in India in the next four weeks that will refine copper concentrate,” the company’s head of metals, Felipe Williams, said on ...

Mining company Glencore is assessing the future of the Mount Isa copper smelter and Townsville copper refinery. The company has approached the state and federal governments to support the assets ...