【Zhi Chao】Announcement by important subsidiary Union (Wuxi) Electronics Co., Ltd. regarding change of Chairman

1. Date of Board Resolution or Occurrence of Change: 2026/05/13 2. Personnel Type (Please enter Chairman or General Manager): Chairman 3. Name of Former Holder: Yang An International (Samoa) Co., Ltd. Representative: Xu Zhengmin 4. Brief Biography of Former Holder: Chairman of Union (Wuxi) Electronics Co., Ltd. 5. Name of New Holder: Yang An International (Samoa) Co., Ltd. Representative: Li Mingxi 6. Brief Biography of New Holder: Director of Union (Wuxi) Electronics Co., Ltd. 7. Nature of Change (Please enter "Resignation", "Dismissal", "Term Expired", "Job Adjustment", "Redundancy", "Retirement", "Deceased" or "New Appointment"): New Appointment 8. Reason for Change: Re-appointment of Chairman by Corporate Shareholder 9. Effective Date of New Appointment: 2026/05/13 10. Other matters to be specified (If the subject of the event or resolution is a public offering company or above, this material information also complies with Article 7, Paragraph 6 of the Enforcement Rules of the Securities and Exchange Act regarding matters that have a material impact on shareholders' equity or securities prices): None