WASHINGTON — The United States is set to impose new tariffs that could hit dozens of countries soon, trade envoy Jamieson Greer signaled on Tuesday, with President Donald Trump's temporary global levies due to expire this week.

The Financial Times reported Tuesday Trump is preparing to impose new levies to replace the 10% global tariffs that expire Friday.

The White House says the tariffs will go into effect in 30 days, meaning there is time for negotiations.

Analysts expect planned tariffs over forced labour concerns to replace Trump's 10 per cent global duty.

Trump plans 10-12.5pc duties on 60 countries over forced labour