[Yulon] Announcement Regarding Participation in the Investor Conference Hosted by Hua Nan Securities

In accordance with Article 4, Paragraph XX: 12 Date of occurrence: June 26, 2026 1. Date of investor conference: June 26, 2026 2. Time of investor conference: 14:00 3. Location of investor conference: 4th Floor, No. 54, Section 4, Minsheng East Road, Songshan District, Taipei City 4. Summary of the conference: The company has been invited to participate in the investor conference hosted by Hua Nan Securities to explain our operational overview and future outlook. 5. Other matters: For conference attendance details, please contact the Institutional Department of Hua Nan Securities. Registration telephone number: (02) 2545-6888 Full financial and business information can be found in the investor conference list or section on the Market Observation Post System.