Shanghai Investigation, Design & Research Institute Co.,Ltd.(SIDRI), affiliated to China Three Gorges Corporation (hereinafter referred to as CTGC) and founded in November 1954,is an A-grade institute with productive technical force, advanced technical equipment and reliable quality products completed.

It is entitled a variety of A-grade licenses covering the design of water resources and hydropower projects, renewable energy development, architecture and environment works, the supervision for construction, the engineering consultation, the compilation of solutions of water and soil conservancy works for project to be developed and constructed, the monitoring for water and soil reservoir works, the environmental impact assessment for project to be constructed, the verification of water resources, the survey and evaluation of hydrological condition and water resources, the engineering geological survey etc. It also has the qualification certificate of international economic cooperation and cooperative business operation which is issued by the Ministry of Commerce of the People’s Republic of China. In 1988, SIDRI was certified by authorized organization of GB/T19001-ISO9001.