Nantong Jianghai Capacitor Co., Ltd. originated as the Nantong Jianghai Capacitor Factory established in October 1958, beginning specialized production of aluminum electrolytic capacitors in 1970. Listed on the Shenzhen Stock Exchange (SZSE: 002484) in 2010, it is the largest manufacturer of electrolytic capacitors in China and consistently ranked among the top global capacitor producers.
Based in Nantong, Jiangsu Province, Jianghai operates comprehensive R&D facilities including a National Postdoctoral Scientific Research Station and the Jiangsu Capacitor Engineering Technology Research Center. The company maintains vertical integration encompassing formed foil, electrolyte chemical synthesis, element winding, and automatic assembly.
Jianghai’s capacitors serve high-reliability industrial control systems, automotive traction inverters, wind and photovoltaic solar converters, rail transport, uninterruptible power supplies (UPS), and enterprise computing infrastructure, supported by ISO 9001, IATF 16949, and ISO 14001 certifications.