Songchuan Precision Announces Change of Supervisor at Key Subsidiary Shanghai Songchuan Precision Electronics Co., Ltd.

1. Date of Change: 115/07/01 2. Category of Appointed or Changed Personnel (please enter: Legal Person Director, Legal Person Supervisor, Independent Director, Natural Person Director, or Natural Person Supervisor): Natural Person Supervisor 3. Former Position and Name: (1) Supervisor: Li Yigang 4. Former's Resume: (1) Supervisor: Li Yigang / Supervisor at Shanghai Songchuan Precision Electronics Co., Ltd. 5. New Position and Name: (1) Supervisor: Wu Songren 6. New Appointee's Resume: (1) Supervisor: Wu Songren / Director and General Manager of Songchuan Precision Co., Ltd. 7. Nature of Change (please enter 'resignation', 'dismissal', 'end of term', 'deceased', or 'new appointment'): New Appointment 8. Reason for Change: Replacement of supervisor 9. Number of Shares Held by New Appointee at Time of Election: Not applicable 10. Original Term (e.g., xx/xx/xx ~ xx/xx/xx): Not applicable 11. Effective Date of New Appointment: 115/07/01 12. Ratio of Director Changes During Same Term: Not applicable 13. Ratio of Independent Director Changes During Same Term: Not applicable 14. Ratio of Supervisor Changes During Same Term: 100% 15. Whether More Than One-Third of Directors Have Changed (please enter yes or no): No 16. Other Matters to be Clarified: This change was implemented pursuant to the shareholder resolution of Shanghai Songchuan Precision Electronics Co., Ltd. dated July 1, 2026.