President Moon Jae-in is on a three-nation tour, that's taken him to Brunei, Malaysia and Cambodia.
The core aim of this visit was to strengthen Korea's cooperation with these nations, as part of his New Southern Policy.
He's had a string of summits, and made agreements with the countries to work together in various fields.
The trip has been closely watched as it came shortly after the breakdown of the summit between North Korea and the U.S.
Moon has called on the ASEAN nations, which have diplomatic relations with Pyeongyang, for support for his peace drive with North Korea.
President Moon will wrap up his week-long trip and return to Seoul on Saturday.