[YuanZhan] Announcement of CEO Change

1. Type of Personnel Change (Please enter Spokesperson, Deputy Spokesperson, Key Operational Executives (e.g., CEO, COO, CMO, CSO, etc.), Financial Officer, Accounting Officer, Corporate Governance Officer, Chief Information Security Officer, R&D Officer, Internal Audit Officer, or Litigation and Non-litigation Agent): Chief Executive Officer. 2. Date of Change: June 9, 115. 3. Name, Position, and Brief History of Former Incumbent: Xu Qiyu - Chief Executive Officer of the Company. 4. Name, Position, and Brief History of New Incumbent: Not applicable. 5. Circumstances of Change (Please enter 'Resignation', 'Job Adjustment', 'Dismissal', 'Retirement', 'Death', 'New Appointment', or 'Removal'): Job Adjustment. 6. Reason for Change: Job Adjustment. 7. Effective Date: June 9, 115. 8. Other Matters to be Noted: None.