Presidential adviser Kim Yong-beom said investments announced during the summit should include already announced projects such as Samsung Electronics' new chip factory in Texas and Hyundai Motor's car factory in Georgia, as well as Hanwha's plan to expand its U.S. shipyard.

South Korea's President Lee Jae Myung faces a pivotal foreign policy test barely two months after taking office, with back-to-back summits in Tokyo and Washington that reflect the wider struggle of U.

When South Korean President Lee Jae Myung meets U.S. President Donald Trump next week for their first summit, he'll face calls to pay more for the upkeep of American troops on the peninsula with security issues expected to be among the top agenda items.