Home2020 Treaties and Agreements ...Korea (20-1223) – Extension of July 2, 1999 Agreement Relating to Scientific and Technical Cooperation hide Korea (20-1223) – Extension of July 2, 1999 Agreement Relating to Scientific and Technical Cooperation TIAS Office of Treaty Affairs December 23, 2020 Scientific and Technical Cooperation Effected by exchange of notes at Washington December 2 and 23, 2020; entered into force December 23, 2020; with effect from July 2, 2020. Extension of agreement signed July 2, 1999: TIAS 99-702. Agreement previously extended June 24 and 25, 2004: TIAS 99-702; July 1 and 7, 2009: TIAS 99-702; February 1 and 22, 2016: TIAS 16-222. Download Agreement [242 KB] Tags International Law, Treaties, and Agreements Science and Technology South Korea