Sinowatt Dongguan Limited, invested by China Zhenhua (Group) Science and Technology Co. Ltd (000733.SZ) in 2010, which is a subsidiary of a Fortune 500 company, focuses on the research and manufacture of cylindrical lithium-ion battery cells and systems. There are advanced production lines for 18650, 26650, 26700, 21700, 32700, 32140 cylindrical cells respectively. The system business mainly develops and produces home energy storage, industrial and commercial energy storage, and various customized battery pack products.