上海大屯能源股份有限公司关于公司董事离任的公告

Group 1 - The announcement states that Mr. Wu Fengdong has submitted his resignation from the board of directors and related committees due to work adjustments [1] - The resignation will take effect upon delivery to the board and will not reduce the number of board members below the legal minimum, ensuring normal operations [1] - The company expresses gratitude for Mr. Wu's contributions to governance and development during his tenure [1]