President Donald Trump on Monday set a 25% tax on goods imported from Japan and South Korea, as well as new tariff rates on a dozen other countries.

"America will, once again, build a DOMINANT Copper Industry," Trump said in a post on his Truth Social media platform.

By Rae Wee SINGAPORE (Reuters) -Asian stocks rose slightly on Thursday, riding on optimism from Nvidia's brief rise to a world-record $4 trillion valuation and as investors largely shrugged off U.S. President Donald Trump's latest tariff salvos.

Japanese carmakers cut export prices to the U.S. by a record 19.4% in June, the steepest decline since at least 2016. The drop reflects efforts to stay competitive after U.S. President Donald Trump’s 25% auto tariffs took effect in April,

President Donald Trump's threats to impose high tariffs on countries make U.S. trading partners and investors nervous. But his sector tariffs could hurt consumers and businesses more in the long run.

STORY: The European Union said it was working on sealing a trade deal with the U.S. by the end of the month.European Commission President Ursula Von der Leyen said the EU was working closely with the Trump administration to reach a deal.

In his new round of tariffs being announced this week, Trump is essentially tethering the entire world economy to his instinctual belief that import taxes will deliver factory jobs and stronger growth in the U.S., rather than the inflation and slowdown predicted by many economists.