Announcement of Director Election at Subsidiary PRIME BASE INC.

Release Date: July 4, 2026 Announcement Date: July 3, 2026

Company Code: 3701 Company Name: Dazhong Holding

Main Point: Announcement on behalf of subsidiary PRIME BASE INC. regarding director election

1. Date of Change: July 3, 2026

2. Category of Personnel Changed (e.g., legal person director, legal person supervisor, independent director, individual director, or individual supervisor): Individual Director

3. Former Position and Name: Individual Director: Liao Heng-Yi, Shen Ren-Kai

4. Former Personnel Resume: Liao Heng-Yi: Director, PRIME BASE INC. Shen Ren-Kai: Director, PRIME BASE INC.

5. New Position and Name: Individual Director: Liao Heng-Yi, Tang Yi-An

6. New Personnel Resume: Liao Heng-Yi: Director, PRIME BASE INC. Tang Yi-An: General Manager, Guangshang Technology Group

7. Nature of Change (e.g., resignation, removal, term expiration, death, or new appointment): New Appointment

8. Reason for Change: Election

9. Shareholding at Time of Appointment: Liao Heng-Yi: 0 shares Tang Yi-An: 0 shares

10. Original Term (e.g., xx/xx/xx ~ xx/xx/xx): Not applicable

11. Effective Date of New Appointment: July 3, 2026

12. Director Turnover Rate within Same Term: 50%

13. Independent Director Turnover Rate within Same Term: Not applicable

14. Supervisor Turnover Rate within Same Term: Not applicable

15. Is the change involving one-third or more of the directors? Yes

16. Other Matters to Note: None