Trump sent tariff letters to 14 countries including South Korea, Japan, Malaysia and Bangladesh.

Myanmar and Laos see 40% rate, among slew of levies to take effect Aug. 1

Trump sent tariff letters to 14 countries including South Korea, Japan, Malaysia and Bangladesh.

Trump threatens to impose tariffs of 25-40 percent from August 1 unless countries make concessions on trade.

Trump uses tariffs as a key tool to force changes to U.S. trade relationships, but his on-again, off-again approach has roiled markets and stoked uncertainty.

President Trump has told 22 countries that they will face tariffs of at least 20% on Aug. 1 if they don’t reach agreements by then.

The White House has sent letters to more than 20 different countries this week announcing new tariffs.