滨化股份：孙淑芳辞任公司董事会秘书职务，孙庆伟接任

Core Viewpoint - The company announced the resignation of its board secretary, Sun Shufang, due to a shift in work focus, while she will continue to serve as the financial director [1] Group 1 - The board of directors received a written resignation report from Sun Shufang, which will take effect upon delivery to the board [1] - The board approved the appointment of Sun Qingwei as the new board secretary, with a term lasting until the end of the sixth board's term [1]