Trump’s new tariff letters have sent shockwaves across global markets as he targets 22 countries with tough new trade threats just weeks before the August 1 deadline. From close allies like Japan and South Korea to BRICS nations like Brazil and South Africa,

U .S. trading partners are weighing responses after President Donald Trump’s latest action on tariffs sparked a stock market selloff Monday.

Following White House Press Secretary Karoline Leavitt's statement that more letters are expected soon, the United States President posted five more letters to Malaysia, Kazakhstan, Myanmar, Lao People's Democratic Republic, and South Africa. 25 percent tariff has been imposed on Tunisia on its imports.

Trump shared screenshots of letters detailing new tariff rates for over a dozen countries, allowing room for further negotiations before the renewed deadline of Aug. 1.

Global stocks advanced on Thursday, underpinned by optimism around artificial intelligence and the prospect of upcoming interest rate cuts, while investors kept a cautious eye on U.S. President Donald Trump's tariff actions and their impact on global trade.

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.

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.

U.S. Secretary of State Marco Rubio met counterparts in Southeast Asia on Thursday during his first visit to Asia since taking office, seeking to reassure them the region is a U.S. priority despite President Donald Trump's tariff offensive.