U.S. copper prices are trading at records ahead of the 50% tariff that the president has promised to impose on imports.

A 50% tariff on imported copper is set to take effect Aug. 1, and global markets are already responding. Copper is a critical material used in home construction, semiconductor chips and electric ...

India's quality control order on copper cathodes is likely to reduce domestic availability due to "costly and unnecessary ...

Freeport-McMoRan could see a $1.6-billion boost to annual profit if President Donald Trump's copper tariff materializes, a ...

U.S. President Donald Trump's threat of a 50% tariff on copper imports is raising alarm in the U.S. auto sector, as it could ...

The metal is used in manufacturing everything from automobiles to mobile phones.

Manufacturers and construction companies — as well as consumers — would face higher prices if the U.S. jacks up tariffs on ...

Copper futures rose dramatically following President Trump's plan for a 50% import tariff, pushing domestic prices to a 25% ...

President Trump wants America to produce more of the much-needed mineral, but a 50 percent tariff could undermine his aim of ...

Copper prices—and mining stocks—rose after President Trump confirmed a 50% tariff on the metal will take effect Aug. 1.

Trump also said he would soon announce tariffs “at a very, very high rate, like 200%,” on pharmaceutical imports.

The Houghton County Historical Society has restored and recertified the Calumet & Hecla Mine #3 Steam Locomotive. Visitors ...