Shares of South Korean automakers Hyundai Motor and Kia Corp fell on Thursday after U.S. President Donald Trump said the U.S. will charge a 15% tariff on imports from South Korea, including autos, as part of a trade deal.

South Korea pledged to invest $350 billion in the U.S., as well as to lower tariff barriers, as part of the deal.

The agreement comes after other American allies, like Japan, clinched their own deals, partly to moderate President Trump’s tariff threats.