President Donald Trump is taking a step toward granting the U.S. mining industry’s biggest wishes by singling out one metal as a focus of his domestic minerals policy: copper. From talk of acquiring Greenland and its vast mineral wealth to prodding Ukraine for minerals in exchange for help fending off Russia's invasion,

"American industries depend on copper, and it should be made in America, no exemptions, no exceptions," Commerce Secretary Howard Lutnick said.

A Trump administration investigation into copper imports has led to an after-hours rise of 20 cents per pound in Comex copper’s value.