President Donald Trump may have gotten his way with tariffs on some countries, but his overhaul of American trade policy has not gone unchallenged.

U.S. President Donald Trump on Wednesday announced a trade deal with South Korea, setting a 15% reciprocal tariff on the country’s exports to the U.S. U.S. goods will not be charged a tariff, Trump said.

President Donald Trump signed executive actions on Wednesday implementing a crippling 50% tariff on Brazil as well as a 50% tariff on certain copper products, the White House said, in the latest escalation of his administration’s aggressive trade war.