President Trump on Monday said 25% tariffs on goods from South Korea and Japan will go into effect on August 1.

President Donald Trump said he’ll impose tariffs of 25% on goods from Japan and South Korea beginning Aug. 1, giving the two export powers a narrow three-week window to open their markets to American products and manufacture more in the US to avoid his unilateral levies.

President Donald Trump cranked up the pressure on two of America’s key trading partners, Japan and South Korea, firing off letters Monday to the heads of their countries that informed them of their new tariff rate.