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 vow of tariffs on U.S. copper and aluminium imports would result in higher costs for local consumers because of a shortfall of domestic production and the length of time it would take to renew the industry,

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.

Copper edged lower after US President Donald Trump said he planned to impose import tariffs on the metal, as well as aluminum and steel, raising fears of trade wars and aiding the dollar.Most Read from BloombergWhat Happened to Hanging Out on the Street?

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,

Copper futures rose in New York on Tuesday while contracts fell on the London Metal Exchange, after President Trump specifically mentioned copper, aluminum and steel in his latest tariff threats in a speech Monday.

Analysts and industry participants said on Tuesday that President Donald Trump’s promised tariffs on US copper and aluminium imports would lead to higher costs for American consumers, according to a Reuters report.

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,