Tong Hwa Announces Change of Spokesperson

Disclosure Date: July 1, 2026 Announcement Date: June 30, 2026 Announcement Time: 09:57:05 Company Code: 1418 Company Name: Tong Hwa Subject: Announcement of Change in Acting Spokesperson Applicable Clause: Clause 8 Event Date: June 30, 2026

Details: 1. Type of Personnel Change (please select from spokesperson, acting spokesperson, key operational executive, financial officer, accounting officer, corporate governance officer, information security officer, R&D officer, internal audit officer, litigation/non-litigation agent): Acting Spokesperson

2. Date of Change: June 30, 2026

3. Former Officer's Name, Title, and Brief Biography: Acting Spokesperson: Chiang Chih-Heng / Deputy General Manager

4. New Officer's Name, Title, and Brief Biography: Acting Spokesperson: Lin Chuang-Yeh / General Manager

5. Nature of Change (please select from 'resignation', 'job reassignment', 'layoff', 'retirement', 'death', 'new appointment', or 'dismissal'): Job Reassignment

6. Reason for Change: Job Reassignment

7. Effective Date: June 30, 2026

8. Other Matters to be Disclosed: None