2340 TAIYA: Chairman of Key Subsidiary JIYA Semiconductor Reappointed

Release Date: June 26, 2026 Statement Date: June 25, 2026 Statement Time: 16:02:09 Company Code: 2340 Company Name: TAIYA Subject: Reappointment of Chairman of Key Subsidiary JIYA Semiconductor Corporation Applicable Clause: Clause 6 Event Date: June 25, 2026

Details: 1. Board Resolution or Change Date: June 25, 2026 (Minguo Year 115) 2. Position (enter 'Chairman' or 'General Manager'): Chairman 3. Former Incumbent Name: Jian Wan-Cai 4. Former Incumbent Resume: Chairman of JIYA Semiconductor Corporation 5. New Appointee Name: Jian Wan-Cai 6. New Appointee Resume: Chairman of JIYA Semiconductor Corporation 7. Nature of Change (select from 'resignation', 'dismissal', 'end of term', 'duty adjustment', 'redundancy', 'retirement', 'deceased', or 'new appointment'): End of Term 8. Reason for Change: Reappointment upon completion of term. 9. Effective Date of New Appointment: June 25, 2026 (Minguo Year 115) 10. Additional Notes: This matter pertains to a publicly issued company and simultaneously qualifies as a significant event under Article 7, Clause 6 of the Enforcement Rules of the Securities and Exchange Act, materially affecting shareholder rights or securities prices. No further disclosures required.