Prevent insider trading execution situations

    

    The company has formulated the "Company Internal Material Information Processing and Prevention of Insider Trading Management Operational Procedures", which stipulates that relevant insider trading control measures include:

• Obtain permission from the dedicated personnel before trading.
• Establish blackout periods for insiders.
• Insiders are not allowed to trade their stocks during the closed period of 30 days before the announcement of annual financial reports and 15 days before the announcement of quarterly financial reports.

    The company has notified insiders by email on 2025/1/1, 2025/4/1, 2025/7/1 and 2025/10/1 that they are not allowed to trade the company’s stocks during the closed period for buying and selling stocks of Tah Tong.

    The company also held the "2025Department Major Information Processing and Insider Trading Prevention Promotion Meeting" on Dec 19, 2025, which lasted for 1 hours and was targeted at all employees of the company (27 people in total). A test was conducted after the meeting. The average test result was 95.6, which shows that all colleagues in the company are aware of insider trading prevention, which is helpful to prevent insider trading.