Group 1 - The company, Changhai Co., Ltd. (300196.SZ), has indicated its involvement in the solid-state battery sector through its production of fiberglass and epoxy resin composites, which can be utilized for battery pack housings or covers, achieving lightweight and high-strength insulation protection [2]

Group 1 - The company, Changhai Co., Ltd. (300196.SZ), produces fiberglass and related products that can be combined with epoxy resin [1] - These materials can be utilized for battery pack housings or cover plates, achieving lightweight and high-strength insulation protection [1]