Home2016 Treaties and Agreements ...China (16-421) – Protocol Extending the Agreement of January 31, 1979, as Amended and Extended, on Cooperation in Science and Technology hide China (16-421) – Protocol Extending the Agreement of January 31, 1979, as Amended and Extended, on Cooperation in Science and Technology TIAS Office of Treaty Affairs April 21, 2016 Scientific and Technological Cooperation Protocol extending the agreement of January 31, 1979, as amended and extended. Signed at Beijing and Washington April 18 and 21, 2016; entered into force April 21, 2016. Download attachment [245 KB] Tags China International Law, Treaties, and Agreements Science and Technology