Hsin Mei Chi Announces Retirement of Corporate Governance Officer

1. Position affected (please specify: spokesperson, acting spokesperson, key operational executives such as CEO, COO, CMO, CSO, financial officer, accounting officer, corporate governance officer, CISO, R&D head, internal audit head, or litigation/non-litigation representative): Corporate Governance Officer

2. Date of change: July 3, 2026 (R.O.C. Year 115)

3. Former appointee's name, title, and resume: Ji Rong-Cun, General Manager / Acting Spokesperson / Corporate Governance Officer

4. New appointee's name, title, and resume: None

5. Nature of change (please select from 'resignation', 'job reassignment', 'redundancy', 'retirement', 'death', 'new appointment', or 'dismissal'): Retirement

6. Reason for change: Retirement

7. Effective date: July 4, 2026 (R.O.C. Year 115)

8. Other disclosures: A subsequent announcement will be made after the board appoints a successor.