Group 1 - *ST Dongtong (Beijing Dongfang Tong Technology Co., Ltd.) announced that its actual controller and chairman, Huang Yongjun, received a notice from the CSRC regarding a formal investigation for suspected information disclosure violations [2] - Multiple executives from various companies, including ST Gaohong and Baiyunshan, are also under investigation for issues such as financial fraud and bribery [2][3] - The surge in investigations, with over 60 listed companies facing scrutiny, reflects both the disregard for investor interests by some executives and the increased regulatory enforcement by the CSRC [3] Group 2 - The CSRC has intensified its crackdown on violations, exemplified by a 160 million yuan fine against ST Gaohong and a 10-year market ban for its chairman [3] - Information disclosure violations, including false records and misleading statements, are identified as the core issues undermining the health of the A-share market [3][4] - The imbalance between the costs of violations and the potential short-term gains from financial fraud is a significant factor driving these illegal activities [4]