[Yunnan Enjie Co., Ltd. signed a strategic cooperation agreement to jointly produce solid electrolyte coating diaphragms and other products] on October 21, 2021, Shanghai Enjie, the controlling subsidiary of Yunnan Enjie New Materials Co., Ltd. (hereinafter referred to as "the company"), and Weilan New Energy and Tianmu Leader signed the Strategic Cooperation Framework Agreement in Shanghai. The three parties have reached a strategic partnership in the future research and development of new technologies, new products, new processes and the realization of cooperation goals, and jointly set up a solid electrolyte coating diaphragm company to jointly develop and produce coating diaphragms and specially customized coating diaphragms.