Latest Copper mining and refining News

About 2,000 workers prepare to strike against miner Asarco

Oct. 12, 2019 11:11 AM EDT

About 2,000 workers at copper producer Asarco are preparing to picket in Arizona and Texas after voting to strike. The United Steelworkers said late Friday that workers rejected the latest contract offer from the subsidiary of Grupo Mexico. The union said the offer included no wage increase for nearly two-thirds...

Court suspends key permits for planned Minnesota copper mine

Sep. 19, 2019 2:34 PM EDT

ST. PAUL, Minn. (AP) — The Minnesota Court of Appeals has handed environmental groups a victory by suspending two key permits for a planned PolyMet copper-nickel mine ahead of a hearing next month. The appeals court put PolyMet's dam safety permit and its permit to mine on hold, ruling Wednesday that the...

Alaska lawmakers, Native group join dispute over Pebble mine

Sep. 11, 2019 9:15 AM EDT

ANCHORAGE, Alaska (AP) — Alaska lawmakers and a Native corporation have joined the dispute over a Canadian company's potential investment in a large copper and gold mining project. Republican Gov. Mike Dunleavy wrote a July letter supporting investment in the Pebble Mine by Wheaton Precious Metals Corp. of...

Minnesota oil pipeline fight highlights Democratic dilemmas

Sep. 9, 2019 10:44 AM EDT

MINNEAPOLIS (AP) — A divisive fight over the future of a crude-oil pipeline across Minnesota is pinning presidential candidates between environmentalists and trade unions in a 2020 battleground state, testing their campaign promises to ease away from fossil fuels. Progressive candidates Elizabeth Warren...

Where a mine supplied a nascent nation, cleanup nears end

Sep. 7, 2019 10:13 AM EDT

STRAFFORD, Vt. (AP) — More than two centuries after people began exploiting the resources buried in the hills of Vermont, a river of pollution that flowed from what was once one of the most important copper mines in the United States has been tamed, and life has returned to downstream waterways. Two...

Bat appreciation day to be held at former Connecticut prison

Sep. 2, 2019 5:24 PM EDT

EAST GRANBY, Conn. (AP) — The nation's oldest prison will be the backdrop for a day devoted to the importance of conserving bats in Connecticut . The underground tunnels at the former prison, Old New-Gate Prison and Copper Mine in East Granby, are the winter home of several state-endangered bat species. On...