鼎信通讯: 鼎信通讯第五届董事会第十一次会议决议公告
Group 1 - The board of directors of Qingdao Dingshin Communication Co., Ltd. held its 11th meeting of the 5th session on May 20, 2025, with all 8 participating directors present [1][2] - Wang Jianhua applied to resign from the position of chairman of the board but will continue to serve as a director [1] - Liu Min was elected as the new chairman of the board to ensure the normal operation of the board [1]