Tung Ho Steel Announces Resolution on Board Election of Chairman by Important Subsidiary Tung Ho Steel Structure Co., Ltd.

1. Date of Board Resolution or Change: 2026/04/15 2. Personnel Category (Please enter Chairman or General Manager): Chairman 3. Name of Former Incumbent: Hou Jie-Teng 4. Brief Resume of Former Incumbent: Chairman of Tung Ho Steel Structure Co., Ltd. 5. Name of New Appointee: Hou Jie-Teng 6. Brief Resume of New Appointee: Chairman of Tung Ho Steel Structure Co., Ltd. 7. Nature of Change (Please enter 'Resignation', 'Dismissal', 'Term Expiration', 'Position Adjustment', 'Redundancy', 'Retirement', 'Decease', or 'New Appointment'): Term Expiration 8. Reason for Change: Re-election due to term expiration 9. Effective Date of New Appointment: 2026/04/15 10. Other Matters to Note (If the entity is a publicly issued company or above, this major information also meets the criteria of Article 7, Clause 6 of the Enforcement Rules of the Securities Transaction Act regarding matters that have a significant impact on shareholder rights or security prices): None.