Metal miner Rio Tinto (RIO) wants to increase its production in the U.S. as President Donald Trump continues his trade war with tariffs. The ...

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Copyright 2025 The Associated Press. All Rights Reserved. The closed LTV Steel taconite plant sits idle near Hoyt Lakes, Minn., Feb. 10, 2016. (AP Photo/Jim Mone ...

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Less than two decades later, President Richard Nixon issued a competing order undermining those protections in 1972. A map illustrating mines within the Copper Triangle of southeastern Arizona. Now, ...

"New copper mines would take much longer, with many facing permitting challenges," she added. Development of Rio Tinto RIO.L, RIO.AX and BHP's BHP.AX massive Resolution Copper mine in ...

However, it can take a decade or more to develop new sources of copper into productive mines, Jowitt says. Even then, there are no guarantees. Take for example the planned Resolution Copper Mine ...

The contested Resolution Copper project at Oak Flat in central Arizona, which is believed to be the world's third-biggest deposit of copper ore and was the site of a battle between locals who want ...

Resolution Copper Mining area shafts await the expansion go-ahead in Superior, Ariz. Ross D. Franklin The Associated Press In 2011, a prospecting drill rig bores into the bedrock near Ely, Minn., in ...

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Resolution Minerals (ASX: RML) has acquired three highly prospective antimony, gold and copper projects on Australia’s eastern seaboard from private explorer Devil Prospecting. The deal includes four ...