[Hsin Kao] Announcement of Board Resolution on Appointment of Members to the 3rd Audit Committee

1. Date of occurrence: June 5, 2026 (115/06/05) 2. Name of functional committee: Audit Committee 3. Names of outgoing members: Chen Po-hsun, Fang Wei-lien, Chi Ya-chi 4. Background of outgoing members: Chen Po-hsun: Chairman, Top High Precision Imaging Co., Ltd. Fang Wei-lien: Partner, Wen-Ching CPA Firm Chi Ya-chi: Director, Infostar Co., Ltd. 5. Names of incoming members: Fang Wei-lien, Chi Ya-chi, Cheng Wan-chen 6. Background of incoming members: Fang Wei-lien: Partner, Wen-Ching CPA Firm Chi Ya-chi: Director, Infostar Co., Ltd. Cheng Wan-chen: Senior ESG Consultant, Edi-S Consulting Co., Ltd. 7. Change status (e.g., resignation, removal, expiration of term, death, new appointment): Expiration of term 8. Reason for change: Expiration of term 9. Original term: May 29, 2023, to June 5, 2026 10. Effective date of new appointment: June 5, 2026 11. Other notes: None