成大生物：第五届监事会第十三次会议决议公告

Group 1 - The core point of the article is that Chengda Biological announced the approval of a resolution to cancel the supervisory board and abolish and revise related regulations [2] Group 2 - The announcement was made during the 13th meeting of the fifth supervisory board [2] - This decision indicates a significant change in the company's governance structure [2] - The implications of this resolution on the company's operations and future strategies remain to be seen [2]