TungThih Holding Co., Ltd. Announces Board Approval of New Heads for System Business Division, Headphone and Wearable Products Business Division, and High-End Products Business Division

1. Type of Personnel Change (Please enter spokesperson, deputy spokesperson, key operational executives (e.g., CEO, COO, CMO, Chief Strategy Officer), financial officer, accounting officer, corporate governance officer, information security officer, R&D officer, internal audit officer, or litigation and non-litigation agent): (1) Head of System Business Division (2) Head of Headphone and Wearable Products Business Division (3) Head of High-End Products Business Division 2. Date of Change: June 8, 2026 (115/06/08) 3. Name, Title, and Resume of Previous Holders: (1) Head of System/Headphone and Wearable Products Business Division: Chen Hailong / General Manager, TungThih Holding Co., Ltd. (2) Head of High-End Products Business Division: Li Gengwei / Senior Vice President, Eastech (SG) Pte. Ltd. 4. Name, Title, and Resume of New Holders: (1) Head of System Business Division: Chen Hailong / General Manager, TungThih Holding Co., Ltd. (2) Head of Headphone and Wearable Products Business Division: Luo Zhufa / Assistant Manager, Dongya Electronics (Hong Kong) Co., Ltd. (3) Head of High-End Products Business Division: Luo Zhufa / Assistant Manager, Dongya Electronics (Hong Kong) Co., Ltd. 5. Type of Change (Please enter "Resignation", "Job Adjustment", "Layoff", "Retirement", "Death", "New Appointment", or "Dismissal"): New Appointment 6. Reason for Change: Organizational restructuring 7. Effective Date: June 8, 2026 8. Other Matters: In response to rapid changes in the end market and the high specialization of product technology, the former "System/Headphone and Wearable Products Business Division" has been reorganized by product line, officially split into the "System Business Division" and the "Headphone and Wearable Products Business Division".