Copper rallied in New York and slumped in London after President Donald Trump pledged import tariffs that risk raising costs for American manufacturers while dampening global demand.

President Donald Trump's threat to impose tariffs on U.S. copper and aluminium imports will result in higher costs for local consumers because of a shortfall in domestic production, analysts and industry participants said on Tuesday.

Copper dropped below $8,000/t in yesterday’s trading session after US President Donald Trump’s latest in a series of tariff threats, ING’s commodity analysts Ewa Manthey and Warren Patterson note.

The U.S. dollar rose on Tuesday, as concerns regarding global economies and potential trade wars continued to worry investors after U.S. President Donald Trump ramped up his tariff rhetoric.  The greenback was up 0.

Upon returning to office, U.S. President Donald Trump has launched numerous tariff threats. They range from broad ones - a universal tariff on foreign-imported goods - to ones aimed at specific sectors,

The dollar index (DXY00) today is up by +0.49%. The dollar is climbing today on Monday night’s comments from President Trump, who said he was considering tariffs on everything from steel and copper to semiconductor chips and that he wants universal tariffs at “much bigger” than 2.