[ATEN] Announcement of Change in Accounting Supervisor

1. Category of personnel change: Accounting Supervisor 2. Date of occurrence: 2026/06/01 3. Name, title, and background of the predecessor: Tian Qing-wei / Senior Associate Manager, General Management Office, ATEN International 4. Name, title, and background of the successor: Lin Jia-hui (Acting) / Manager, Accounting Department, ATEN International 5. Nature of change: Job reassignment 6. Reason for change: Job reassignment 7. Effective date: 2026/06/01 8. Other matters: The formal appointment of the new accounting supervisor will be announced in accordance with relevant regulations following the resolution of the Board of Directors.