The Second Institute of Oceanography (SIO), under the Ministry of Natural Resources of China, is located in Hangzhou, Zhejiang. SIO specializes in deep-sea science and technology research, covering areas such as ocean dynamic processes, marine ecosystems, polar oceanography, and deep-sea resource exploration. The institute has been actively involved in China's polar expeditions and deep-sea exploration projects, contributing significantly to the advancement of national marine science and international collaboration.
