Home2018 Treaties and Agreements ...China (18-131) – Protocol Extending Agreement of January 31, 1979 on Cooperation in Science and Technology hide China (18-131) – Protocol Extending Agreement of January 31, 1979 on Cooperation in Science and Technology TIAS Office of Treaty Affairs January 31, 2018 Scientific and Technological Cooperation Protocol extending the agreement of January 31, 1979, as amended and extended. Signed at Beijing January 30 and 31, 2018; entered into force January 31, 2018; effective October 27, 2017. Download attachment [172 KB] Tags China Scientific and Technological Cooperation Treaties