Changhong Sanjie New Energy Co., Ltd. is a subsidiary of Changhong Energy Holdings. Headquartered in Huangqiao Industrial Park, Taixing City, Jiangsu Province, it has a total investment exceeding RMB 3 billion, covering an area of ​​600 mu (approximately 40 hectares) with a building area of ​​200,000 square meters. The company currently has two major production bases in Taixing and Mianyang, with an annual output exceeding 600 million batteries.

Market-oriented and guided by the development philosophy of "advanced technology, superior quality, and honest operation," the company focuses on the R&D and manufacturing of ternary lithium batteries, sodium-ion batteries, and lithium iron phosphate batteries, covering cylindrical models such as 18650, 21700, and 26700, widely used in power tools, garden tools, cleaning tools, small household appliances, low-speed vehicles, and energy storage.