The SEC’s investigation found that Miss Supaporn submitted a total of four Form 59 reports (covering shares of four listed companies) during 27–28 June 2026, and a total of seven Form 246-2 reports (covering securities of six listed companies) during 30 June–2 July 2026. However, Miss Supaporn neither held, acquired nor disposed of securities of the six listed companies as stated in the Form 59 and Form 246-2 reports.

Miss Supaporn’s conduct as described above therefore falls within the scope of submitting documents containing false statements to the SEC, in violation of and subject to penalties under Section 302/1 of the SEA. The SEC has therefore filed a criminal complaint against Miss Supaporn with the ECD.

The SEC closely monitored and reviewed the reporting of information in Form 59 and Form 246-2 in Miss Supaporn’s case and took immediate action upon detecting irregularities. The SEC removed her reported Form 59 information from the reporting system after finding that she was not a director, executive or person subject to reporting obligations, and marked the status of the Form 246-2 information as “Preliminary Information” on 3 July 2026 to alert investors. Subsequently, on 7 July 2026, the SEC changed the status of the information to “Under Verification” while expediting an in-depth examination of the information due to inconsistencies. Upon finding inaccuracies and receiving confirmation from relevant parties on 8 July 2026, the SEC removed her Form 246-2 reports from the reporting system.

Mr. Anek Yooyuen, Deputy Secretary-General and Spokesperson of the SEC, said: “The SEC’s action proceeded in sequential steps and placed importance on information disseminated for investment decision-making. The SEC immediately indicated the status of such Form 246-2 reports upon detecting irregularities, while examining and gathering evidence with due care before removing the information from the reporting system. Subsequently, on 10 July 2026, the SEC and the Economic Crime Suppression Division (ECD) jointly verified the identity of, and interviewed, the reporting person, as part of the procedural steps affording the reporting person the right to clarify, which must be carried out in accordance with due process of law. In addition, the SEC has received comments and suggestions on additional measures and will further study, in collaboration with relevant stakeholders, the effectiveness of such measures in preventing and deterring incidents of this nature, with a view to strengthening confidence in the accuracy of information in the capital market.

Following the criminal complaint filed by the SEC, the criminal enforcement process will proceed with investigation by the inquiry official, prosecution by the public prosecutor, and adjudication by the court of justice, respectively. In this regard, the SEC will monitor the progress of the legal proceedings and fully cooperate with relevant agencies to support legal enforcement under the SEA after the criminal complaint has been filed.