2432 E-TEN COG-CHUANG: Announcement of Change in Corporate Director Representative by Parent Company

Release Date: August 15, 2026 Statement Date: August 14, 2026 Statement Time: 17:06:59 Company Code: 2432 Company Name: E-TEN COG-CHUANG

Subject: Announcement of Change in Corporate Director Representative Applicable Clause: Clause 6 Factual Date: August 14, 2026

Details: 1. Date of Change: 08/14/2026 2. Corporate Name: Acer Incorporated 3. Former Representative: Kao Shu-Kuo 4. Former Representative's Background: Chief Operating Officer, Acer Inc. 5. New Representative: Chi Tsu-Chieh 6. New Representative's Background: Chief Financial Officer, Intelligent Connectivity Services Corp. 7. Reason for Change: Reassignment of corporate director representative by parent company 8. Original Term (e.g., xx/xx/xx to xx/xx/xx): 11/07/2025 to 11/06/2028 9. Effective Date of New Appointment: 08/14/2026 10. Other Disclosures: None