Tachsin Announces Expiration of Compensation Committee Members' Term

Announcement Date: June 27, 2026 Statement Date: June 26, 2026 Statement Time: 14:49 Company Code: 1315 Company Name: Tachsin Subject: Notice of Expiration of Term for the Company's Compensation Committee Applicable Clause: Clause 6 Event Date: June 26, 2026

1. Date of Change: June 26, 2026 2. Name of Functional Committee: Compensation Committee 3. Former Members: (1) Lin Ke-Wu (2) Yang De-Wang (3) Yang Guo-Shu 4. Former Members' Background: (1) Lin Ke-Wu: Independent Director, Tachsin Industrial Co., Ltd. (2) Yang De-Wang: Independent Director, Tachsin Industrial Co., Ltd. (3) Yang Guo-Shu: Independent Director, Tachsin Industrial Co., Ltd. 5. New Appointees: Term expired; no new appointments made by the Board yet. 6. New Appointees' Background: Term expired; no new appointments made by the Board yet. 7. Nature of Change (Please enter 'Resignation', 'Dismissal', 'End of Term', 'Death', or 'New Appointment'): End of Term 8. Reason for Change: In conjunction with the current board's re-election. 9. Original Term (e.g., 06/26/2023 ~ 06/15/2026): 06/26/2023 ~ 06/15/2026 10. Effective Date of New Appointment: Not yet appointed 11. Other Matters to be Disclosed: New Compensation Committee members will be appointed at the next board meeting and announced accordingly.