上交所：本周对*ST正平、*ST亚振等异常波动退市风险警示股票，以及合富中国、天普股份等波动幅度较大的股票进行重点监控

Group 1 - The Shanghai Stock Exchange implemented self-regulatory measures against 121 cases of abnormal trading behaviors, including price manipulation and false declarations, from December 1 to December 5, 2025 [1] - Stocks under risk warning for abnormal fluctuations include *ST Zhengping (603843) and *ST Yazhen (603389), along with stocks like Hezhong China (603122) and Tianpu Co., Ltd. (605255) that exhibited significant volatility [1] - The exchange conducted special investigations on 25 major events related to listed companies and reported 8 suspected illegal activities to the China Securities Regulatory Commission [1]