December 13, 2022
Environmental groups are requesting a $1.1 million award for attorney fees and other expenses following the Ninth Circuit's split-panel decision to affirm a district court ruling nixing a proposed open-pit copper mine near Tucson, Arizona.
August 22, 2022
The full Ninth Circuit has rejected Rosemont Copper Co.'s bid for a rehearing after the Hudbay Minerals Inc. subsidiary asked the appellate court to reconsider a decision nixing the company's plans for a proposed copper mine waste site in Arizona.
July 28, 2022
A Hudbay Minerals Inc. subsidiary has asked the Ninth Circuit to reconsider its plans for a massive copper mine in Arizona, saying an appellate panel that blocked the project earlier this year misinterpreted a key federal law and abdicated its judicial-review responsibilities.
May 12, 2022
The Ninth Circuit on Thursday affirmed an Arizona federal court's ruling that blocked a major copper mining project in the state, finding mining law does not permit contentious plans to dump nearly 2 billion tons of waste in national forests.
September 14, 2020
A group of tribes and environmentalists asked the Ninth Circuit to affirm an Arizona federal court's ruling blocking a major copper mining project in the state, saying the decision that determined the U.S. government improperly approved the project was correct.
June 30, 2020
Mining interest groups have filed a flurry of amicus briefs with the Ninth Circuit supporting a bid by Rosemont Copper Co. and its parent company to overturn a lower court ruling blocking a major copper mining project in Arizona.