U.S. listed copper stocks shot higher today as investors took a shine to President Trump’s warning that imports of the metal could be a

President Donald Trump opened yet another front on Tuesday in his assault on global trade norms, ordering a probe into potential new tariffs on copper imports to rebuild U.S. production of a metal critical to electric vehicles,

The White House suggested Tuesday there is a strong case for copper import protections because the metal is an essential component of military hardware.

President Trump on Tuesday directed his Commerce secretary to investigate the need for possible tariffs on copper, the latest industry to potentially be targeted by Trump’s sweeping trade agenda.

Tariffs, if they are imposed, could boost U.S. production of a valuable resource but also raise costs for automakers, construction companies and others.