Ruentex Development Board of Directors Re-elects Chairman

1. Date of board resolution or change: 2026/05/20 2. Position: Chairman 3. Name of former incumbent: Ying Jia Investment Co., Ltd., Corporate Representative: Chien Tsang-Tsun 4. Resume of former incumbent: Chairman of Ruentex Innovation International Co., Ltd. 5. Name of new incumbent: Ying Jia Investment Co., Ltd., Corporate Representative: Chien Tsang-Tsun 6. Resume of new incumbent: Chairman of Ruentex Innovation International Co., Ltd. 7. Nature of change: Term expiration 8. Reason for change: Re-elected as Chairman by the Board of Directors following election at the shareholders' meeting upon term expiration. 9. Effective date of new appointment: 2026/05/20 10. Other matters to be specified: None.