ZyXEL Announces Change in Corporate Governance Officer

1. Category of personnel change (please enter spokesperson, acting spokesperson, key operational executive (e.g., CEO, COO, CMO, CSO, etc.), financial officer, accounting officer, corporate governance officer, information security officer, R&D officer, internal audit officer, or litigation and non-litigation agent): Corporate Governance Officer

2. Date of change: June 18, 2026

3. Name, title, and resume of outgoing officer: Jason Ho / Corporate Governance Officer of the Company

4. Name, title, and resume of incoming officer: Position currently vacant

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

6. Reason for change: Resignation

7. Effective date: June 18, 2026

8. Other matters to be disclosed: The new appointee will be determined upon resolution at the next board meeting.