South Korea will invest $120 billion in the U.S. to build eight nuclear power plants. This is part of a larger agreement to invest $350 billion in exchange for lower tariffs. South Korean President Lee Jae Myung is set to meet with U.S. President Donald Trump on the sidelines of the Asia-Pacific Economic Cooperation leaders' summit in Gyeongju, South Korea, on Oct. 29, 2025. Seoul states it will only invest in commercially viable projects.