Higher tariffs are set to go into effect on Aug. 1, and roughly two dozen countries could still negotiate with the administration to try to strike a better trade deal.

U.S. President Donald Trump's tariff decisions since he took office on January 20 have shocked financial markets and sent a wave of uncertainty through the global economy. Here is a timeline of the major developments: February 1 - Trump imposes 25% tariffs on Mexican and most Canadian imports and 10% on goods from China,

U.S. President Donald Trump signed an executive order implementing an additional 40% tariff on Brazil, bringing the total tariff amount to 50%, the White House said on Wednesday, citing Brazil's recent policies that the Trump administration disagrees with.