Tianneng battery group Co., Ltd., referred to as Tianneng Co., Ltd., is a large-scale industrial enterprise focusing on the manufacturing of environmental protection power batteries for electric vehicles, integrating the R & D, production and sales of lithium batteries for new energy vehicles, starting and stopping batteries for vehicles, wind energy and solar energy storage batteries, as well as the construction of Urban Smart micro grid and green intelligent manufacturing industrial park. Up to now, the company has built ten production bases in Zhejiang, Jiangsu, Anhui, Henan and Guizhou provinces, with more than 50 subsidiaries. It is a leading enterprise in China's new energy power battery industry, and its comprehensive strength ranks among the global top 500 new energy enterprises, top 500 Chinese enterprises, top 500 Chinese private enterprises and top 10 Chinese battery industry.