[Rayence] Announcement of Changes in Spokesperson and Acting Spokesperson

1. Type of personnel change (please enter spokesperson, acting spokesperson, key operational officer...): Spokesperson, Acting Spokesperson 2. Date of occurrence: 2026/05/15 3. Name, title, and resume of the former position holder: Spokesperson: Yang Chu-Hsiang / Chairman of the Company Acting Spokesperson: Li Chih-Sheng / President of the Company 4. Name, title, and resume of the new position holder: Spokesperson: Li Chih-Sheng / President of the Company Acting Spokesperson: Cheng Chia-Hsing / Corporate Governance Officer of the Company 5. Type of change: Duty adjustment 6. Reason for change: Duty adjustment 7. Effective date: 2026/05/16 8. Other matters to be specified: None