ZyXEL Announces Appointment of New Corporate Governance Officer

1. Category of Personnel Change (please specify: Spokesperson, Acting Spokesperson, Key Operating Officer (e.g., CEO, COO, CMO, CSO), Financial Officer, Accounting Officer, Corporate Governance Officer, Chief Information Security Officer, R&D Officer, Internal Audit Officer, or Litigation/Non-litigation Agent): Corporate Governance Officer

2. Date of Change: August 11, 2026

3. Name, Title, and Resume of Former Officer: Not applicable

4. Name, Title, and Resume of New Officer: Chi-Li Cheng / Accounting Officer of the Company

5. Nature of Change (please enter 'resignation', 'job reassignment', 'layoff', 'retirement', 'death', 'new appointment', or 'dismissal'): New Appointment

6. Reason for Change: Approved by the Board of Directors on August 11, 2026

7. Effective Date: August 11, 2026

8. Other Matters to be Disclosed: None