心泰医疗(02291.HK)：杨丽珊获委任为联席公司秘书及授权代表

Group 1 - The core announcement is that Li Jianwei has resigned from multiple positions at Xintai Medical, effective December 30, 2025 [1] - Positions Li Jianwei is resigning from include: (i) Co-Company Secretary; (ii) Agent for receiving legal documents and notices in Hong Kong; and (iii) Authorized representative under the Companies Ordinance and Listing Rules [1] - Following Li's resignation, Yang Lishan has been appointed to the aforementioned positions, effective December 30, 2025 [1]