US President Donald Trump's threat to impose 50-percent tariffs on copper imports has roiled the strategic metal on markets.

U.S. President Donald Trump said on Tuesday he would soon announce a 50% tariff on copper imports, which make up nearly half ...

The latest Market Talks covering Basic Materials. Published exclusively on Dow Jones Newswires at 4:20 ET, 12:20 ET and 16:50 ...

Chile, the world's biggest copper producer, said Wednesday it was awaiting an "official" follow-up on US President Donald ...

President Trump is again amping up his trade threats, unveiling a new batch of letters to country leaders outlining tariffs on goods imported from their countries beginning in August. Trump on ...