Environmentalists and farmers are challenging Arizona's approval of an air pollution permit for Copper World Mine, claiming it's lax on toxic dust.

Rio has faced a 12-year permitting battle to develop the Resolution mine, which could meet 25% of US domestic copper needs.

Environmental and community groups have appealed the Arizona Department of Environmental Quality’s decision to grant an air ...

The interest bodes well for ASX-listed copper explorers in Arizona. The most advanced of the Aussie copper plays in Arizona ...

Arizona Sonoran Copper Company Inc. an emerging U.S. copper developer, is pleased to highlight the significant progress made ...

New World Resources (ASX:NWC) has discovered potentially economic and resource boosting gold at the Antler copper project in ...

Arizona Sonoran Copper Company Inc. (T.ASCU) hit a new 52-week high of $1.84 Tuesday. Highlighted the significant progress ...

While the political playing field has become more favorable for mining, the Republican’s proposals still face hurdles.

Opponents of the Copper World mine are appealing a state air quality ... In issuing the permit Jan. 2, the Arizona Department of Environmental Quality said its computer modeling found the mine ...

(Alliance News) - Rio Tinto PLC believes the administration of US President Donald Trump will give approval to a huge copper mine in Arizona that has been held up for 12 years, the Financial Times ...

The most advanced of the Aussie copper plays in Arizona is New World with its Antler ... immediately north of BHP’s San Manuel-Kalamazoo mine, in June via an earn-in with Outcrop Silver ...