Rainbow Electric Announces Appointment to Sustainability Committee

1. Date of Change: 115/07/30 2. Name of Functional Committee: Sustainability Committee 3. Former Member's Name: Chang Tao-Lin 4. Former Member's Biography: Independent Director of the Company 5. New Member's Name: Chiao Yu-Chou 6. New Member's Biography: Independent Director of the Company 7. Nature of Change (please enter 'resignation', 'dismissal', 'end of term', 'deceased', or 'new appointment'): New Appointment 8. Reason for Change: In conjunction with the supplementary election of independent directors at the annual general meeting 9. Original Term (e.g., xx/xx/xx ~ xx/xx/xx): 114/10/30 ~ 117/06/04 10. Effective Date of New Appointment: 115/07/30 11. Other Matters to be Stated: None