Home2020 Treaties and Agreements ...Multilateral (20-101.4) – Trade Agreement hide Multilateral (20-101.4) – Trade Agreement TIAS Office of Treaty Affairs January 1, 2020 Trade and Investment Agreement signed at Sejon, Seoul, Bangkok, Hanoi and Washington December 12, 20, 24 and 30, 2019; entered into force January 1, 2020. Download Agreement [328 KB] Tags Multilateral Trade and Investment Treaties