[Songchuan Precision] Announcement of Supervisor Change at Subsidiary Yisheng Investment Co., Ltd.

1. Date of change: 115/05/21 2. Type of personnel change (Corporate Director, Corporate Supervisor, Independent Director, Natural Person Director, or Natural Person Supervisor): Corporate Supervisor 3. Former title and name: Taiwan Hongding Asia II Limited Partnership (Representative: Liu Jingyi) 4. Background of former: Supervisor of Yisheng Investment Co., Ltd. 5. New title and name: Not applicable 6. Background of new: Not applicable 7. Circumstances of change (Resignation, Dismissal, Term Expiration, Death, or New Appointment): Resignation 8. Reason for change: Resignation of Corporate Supervisor and representative 9. Shareholding of new appointee: Not applicable 10. Original term (e.g., xx/xx/xx ~ xx/xx/xx): 115/01/13 ~ 118/01/12 11. Effective date for new: Not applicable 12. Change ratio of directors for the same term: Not applicable 13. Change ratio of independent directors for the same term: Not applicable 14. Change ratio of supervisors for the same term: 100% 15. Change of more than one-third of directors: No 16. Other remarks: None