Cheng Shin: Company Invited to Investor Conference Hosted by Horizon Securities

In accordance with Article 4, Paragraph XX, Item 12: Date of occurrence: 2026/05/13 1. Date of investor conference: 2026/05/13 2. Time of investor conference: 14:30 3. Location of investor conference: Horizon Securities, Conference Room 702, 7F, No. 236, Sec. 4, Xinyi Rd., Da'an Dist., Taipei City 4. Key message of investor conference: Our company is invited to participate in the investor conference hosted by Horizon Securities. 5. Other matters that should be specified: None For complete financial and business information, please refer to the investor conference list or investor conference items on the Market Observation Post System. Keywords: Material Information