康为世纪：关于内审部负责人退休离职的公告

Group 1 - The core point of the article is that Kangwei Century announced the resignation of its internal audit department head, Mr. Tang Yufeng, due to retirement, and he will no longer hold any position in the company after his departure [2] Group 2 - The announcement was made on February 2, indicating a formal communication from the company's board of directors regarding the leadership change [2] - Mr. Tang Yufeng submitted a written resignation report to the board, highlighting the procedural aspect of his departure [2]