Enjie was listed on China's A-share market in September 2016, stock abbreviation: Enjie, stock code: 002812, covering two business systems: "new energy" and "packaging".Enjie was established in April 2010, with a registered capital of RMB 38,921,0834,000 yuan. With a registered capital of RMB 389,210,834,000, Shanghai Enjie began to enter the lithium-ion battery septum industry. With the further expansion of lithium-ion battery applications, Shanghai Enjie has become a national high-tech enterprise integrating the research and development, production and manufacturing of high-performance lithium-ion battery separator film, and a leading enterprise in the lithium-ion battery separator film industry. 22% of the global market share in 2020, ranking first in the world.

As one of the world's largest manufacturers of lithium battery separator film, Shanghai Enjie is one of the world's largest manufacturers of lithium battery separator film. Customers include Tesla, Samsung, LG, Panasonic, Ningde Times, BYD and other leading lithium battery companies.

Lithium battery diaphragm granulator exhaust mainly comes from the granulation workshop, granulation workshop exhaust gas main odor composition is complex and variable, roughly divided into five categories: ① sulfur-containing compounds: such as H2S, SO2, mercaptans, sulfur ethers. ② Dust: such as carbon black. ③ Chlorine-containing compounds: such as amides, indoles. ④Hydrocarbons: such as alkanes, alkenes, alkynes, aromatic hydrocarbons. ⑤ Oxygen-containing organic compounds: such as alcohols, phenols, aldehydes, ketones, organic acids. After on-site testing, the main components of this item are alkanes, haloalkanes, esters and benzenes.