Giant Court Announces Board Election of New Chairman

1. Date of Board Resolution or Change: 2026/06/16 2. Position (Please enter 'Chairman' or 'General Manager'): Chairman 3. Former Incumbent Name: Chuang Po-Yen 4. Former Incumbent Resume: Chairman of Giant Court Machinery Co., Ltd. 5. New Appointee Name: Chuang Chia-Ling 6. New Appointee Resume: Director of Giant Court Machinery Co., Ltd. 7. Nature of Change (Please enter 'Resignation', 'Dismissal', 'End of Term', 'Job Adjustment', 'Redundancy', 'Retirement', 'Deceased', or 'New Appointment'): End of Term 8. Reason for Change: Election following the expiration of term 9. Effective Date of New Appointment: 2026/06/16 10. Other Matters to be Disclosed: None

This announcement qualifies as material information under Article 7, Paragraph 6 of the Enforcement Rules of the Securities and Exchange Act, as the subject company is a publicly listed entity, though no direct impact on shareholder rights or stock price is currently indicated.