Copper mining

The Coppermine Chapter voted overwhelmingly to adopt a resolution opposing mining projects like the kind Essential Minerals wants to build.

A consultant for Essential Minerals says the proposed project near Coppermine is only being explored. But Navajo residents are still skeptical.

The Trump administration plans to reissue an environmental impact statement that would permit the government to exchange land with Resolution Copper at Oak Flat in the Tonto National Forest.

The projects will accelerate clean energy development on current and former mine lands in Arizona and four other states.

A planned bill would essentially counteract the 9th Circuit ruling in an Arizona copper mining case, which blocked the Rosemont copper mine last year because the company hadn't proven it had mineral rights on the adjacent land where the waste rock was to be buried.

Arizona’s U.S. senators are urging federal officials to classify copper as a critical mineral amid growing demand. They say it’s necessary for national security and water and clean energy infrastructure.

A federal judge has rejected a request by opponents to stop Toronto-based Hudbay Minerals Inc. from preparing a planned new copper mine’s site in the Santa Rita Mountains near Tucson.

Hudbay Minerals Inc. says it may appeal a court ruling against its planned use of forest land to store waste rock from a proposed new copper mine but that it also will continue planning for a nearby related project that would include using private land.

An appeals court Thursday upheld a judge’s ruling overturning a federal agency’s approval of a Toronto-based company’s plan for a new open-pit copper mine in southeastern Arizona.

A Hudbay Minerals Inc. subsidiary plans to begin clearing and grading this month on the southern Arizona site for a planned new mine with five open pits.