Cheng Mei Tsai Announces Appointment of New Audit Committee Member

1. Date of Change: 2026/06/29 2. Name of Functional Committee: Audit Committee 3. Former Member's Name: Not Applicable 4. Former Member's Resume: Not Applicable 5. New Member's Name: Yeh Chi-Hui 6. New Member's Resume: (1) Independent Director, Taiwan U-Lamp Co., Ltd. 7. Nature of Change (please enter 'resignation', 'removal', 'end of term', 'deceased', or 'new appointment'): New Appointment 8. Reason for Change: One seat of independent director was supplementary elected at the Company's 115th First Extraordinary Shareholders' Meeting. 9. Original Term (e.g., xx/xx/xx ~ xx/xx/xx): 2024/06/07 ~ 2027/06/06 10. Effective Date of New Appointment: 2026/06/29 11. Other Matters to be Stated: One independent director was supplementary elected at the Company's 115th First Extraordinary Shareholders' Meeting and has assumed the role of Audit Committee member in accordance with the Audit Committee Organization Charter. The term of office shall be co-terminus with the original Seventh-term Audit Committee.