The Company has established “Procedures of material information” to prohibit internal personnel from buying or selling securities by using undisclosed information to the public, and as reference for the Company's handling and disclosure of material information. The procedures have been disclosed in the Corporation's website

Implementation：

1. When directors assumed office, we provided “Compliance Brochure for Directors and Supervisors”, “Guide to Regulations Governing Independent Directors” and “Directions Concerning Securities Market Regulatory Matters for TWSE Listed Companies and Their Directors, Supervisors, and Major Shareholders” to them, and explained relevant regulations.
2. From the second quarter of 2022, we sent email to insiders 30 days before the publication of annual financial report and 15 days before the publication of quarterly financial report, reminding insiders to avoid trading the company's stocks during the closed period of 30 days prior to the publication of the annual financial reports and 15 days prior to the publication of the quarterly financial reports.
3. We arrange employees participate Prevention of Insider Trading and Trade Secret courses irregularly. The total of 616 participants and 837 hours in 2022.