Home2018 Treaties and Agreements ...China (18-627) – Protocol Extending Agreement of January 31, 1979 on Cooperation in Science and Technology hide China (18-627) – Protocol Extending Agreement of January 31, 1979 on Cooperation in Science and Technology TIAS Office of Treaty Affairs June 27, 2018 Scientific and Technological Cooperation Protocol extending the agreement of January 31, 1979, as amended and extended. Signed at Beijing June 22 and 27, 2018; entered into force June 27, 2018. Download attachment [236 KB] Tags China Scientific and Technological Cooperation Treaties