Cosmo Electronics Corporation announced change to the corporate governance officer of the company. Type of personnel changed: Corporate governance officer. Date of occurrence of the change: July 4, 2024.

Name, title, and resume of the previous position holder: HONG, YUHAN/Corporate governance officer. Name, title, and resume of the new position holder: Another announcement will be made after the approval of the board of directors. Reason for the change: Resignation.

Effective date: July 4, 2024.