LUMOSA Board of Directors Approved the Appointment of Corporate Governance Officer. Type of personnel changed: corporate governance officer. Date of occurrence of the change: 2023/05/12.

Name, title, and resume of the previous position holder: Not applicable. Name, title, and resume of the new position holder: LanYing Huang/Accounting Officer/Accountant DAS Technology Co., Ltd. Type of change: new replacement. Effective date: 2023/05/12.