标准股份：董事蔡新平退休离任

Group 1 - The board of directors of Xi'an Standard Industrial Co., Ltd. received a resignation letter from director Cai Xinping due to reaching the statutory retirement age [1] - Cai Xinping has resigned from his position as a director of the ninth board and as a member of the board's audit committee [1] Group 2 - Multiple regions are experiencing "negative electricity prices," raising questions about why power plants are reluctant to shut down despite not making profits from selling electricity [1]