
Bangkok was hit with the same rate when the US president announced his initial wave of levies at the start of April, but has been paying a 10% standby rate as negotiators raced for a deal before a July 9 deadline.
Trump sent letters to more than a dozen countries on Monday, renewing his threat of high tariffs but extending the negotiation deadline to Aug 1.
“The most important thing is that we maintain good relations with the US,” Phumtham told reporters in Bangkok.
“Once we reassess the situation, I hope we can secure a better deal,” he said.
While the toll announced for Thailand remains the same, Trump has reduced the highest threatened rate for some of the US’ other trading partners.