天坛生物完成法定代表人工商变更登记，杨汇川接任

Group 1 - Beijing Tiantan Biological Products Co., Ltd. has completed the registration of the change of its legal representative and obtained a new business license from the Beijing Economic and Technological Development Zone Market Supervision Administration [1] - The company held its first extraordinary general meeting of shareholders on August 20, 2025, where the proposal to change the legal representative was approved [1] - The new legal representative is Mr. Yang Huichuan, while other information on the business license remains unchanged [1] Group 2 - The board of directors and all directors of the company guarantee that the announcement contains no false records, misleading statements, or major omissions, and they bear legal responsibility for the authenticity, accuracy, and completeness of its content [1] - The announcement was published on August 28, 2025 [1]