[GUC] Announcement regarding the appointment of members to the Audit and Corporate Governance Committee

1. Date of change: 2026/05/21 2. Name of functional committee: Audit and Corporate Governance Committee 3. Former members: Independent Director: Lien-Fang Chin Independent Director: Yuh-Kuang Ting Independent Director: Tsui-Huei Huang Independent Director: Hou-Ming Chen 4. Biographical sketches of former members: Lien-Fang Chin: Ph.D. in Nuclear Engineering and Applied Physics, Columbia University; Senior Vice President, TSMC Yuh-Kuang Ting: MBA, University of Detroit; Chairman, Entie Commercial Bank Tsui-Huei Huang: MBA, Cornell University; Chairman & CEO, H&Q Asia Pacific Hou-Ming Chen: Ph.D. in Business, National Taiwan University; Honorary Professor, Department of International Business, National Taiwan University 5. New members: Independent Director: Lien-Fang Chin Independent Director: Yuh-Kuang Ting Independent Director: Tsui-Huei Huang Independent Director: Hou-Ming Chen Independent Director: Chao-Hung Chen 6. Biographical sketches of new members: (Former four members same as above) Chao-Hung Chen: Ph.D. in Law, University College London; Associate Professor, College of Law, National Taiwan University 7. Status of change: Re-election upon expiration of terms 8. Reason for change: Re-election upon expiration of terms 9. Original term: N/A 10. Effective date of new appointment: 2026/05/21 11. Other information: None