China Marine Information Electronics Company Limited engages in the research and development, manufacture, and sale of electronic defense and information equipment in China. The company offers underwater information transmission equipment; underwater defense products used for underwater information detection and confrontation, acquisition, transmission, system control, and underwater acoustic; special-purpose computer products, such as computers, servers, storage devices, network devices, and modules, as well as hardware, firmware, software, structure and other products. It also offers motion control products, including rotary encoders, encoders, motion control systems, control equipment, and integrated electromechanical systems; power supply products, such as radar, pulse, and integrated power supply, intelligent power management system, and other products; and satellite communication and navigation systems and equipment, independent intellectual property multi-mode GNSS chips, multi-mode receivers, Beidou terminal positioning equipment, offshore mobile platform safety protection systems, and marine observation mobile survey equipment. In addition, the company provides electrical connector products; oil and gas related equipment; smart city-related products; intelligent manufacturing-related products; and electrical connector products.