Gelonghui, November 18 | Changyang Technology (688299.SH) said on the investor interactive platform that the company mainly supplies dry diaphragms to customers such as BYD. Wet diaphragms that can be used for solid-state or semi-solid-state batteries have obtained small-batch orders from leading customers in the industry and corporate orders from lower back customers. In view of the confidentiality agreement, our company cannot directly disclose solid-state battery-related companies that purchase our products. This business is an important driving force and growth point for the company in the future, as well as the key direction of the company's production capacity layout.