AAC Technologies Announces Full Board Renewal at 2026 Annual General Meeting

1. Date of Change: 06/23/2026

2. Category of Appointed or Changed Personnel (please select from: corporate director, corporate supervisor, independent director, individual director, or individual supervisor): Corporate Director, Independent Director, Individual Director

3. Previous Position and Name: Director: Hsia, Ju-Wen Director: Chen, Meng-Fen Director: Ting, Yu-Chia (representative of Yechang International Co., Ltd.) Director: Liang, Min-Fang (representative of Yechang International Co., Ltd.) Independent Director: MORI SHOREI Independent Director: FEI LIU Independent Director: Wang, Wan-Chen

4. Previous Resume: Hsia, Ju-Wen: Chairman, AAC Technologies Corp. Chen, Meng-Fen: General Manager, Chang-Chieh Management Consulting Co., Ltd. Ting, Yu-Chia: General Manager, KGI Financial Holding Co., Ltd. Liang, Min-Fang: Senior Vice President, AAC Technologies Corp. MORI SHOREI: Executive Director, Fujifilm Corporation, Japan FEI LIU: Attorney, Law Office of FEI LIU Wang, Wan-Chen: Senior Associate, CTBC Capital Co., Ltd.

5. New Position and Name: Director: Hsia, Ju-Wen Director: Chen, Meng-Fen Director: Ting, Yu-Chia (representative of Yechang International Co., Ltd.) Director: Liang, Min-Fang (representative of Yechang International Co., Ltd.) Independent Director: MORI SHOREI Independent Director: FEI LIU Independent Director: Wang, Wan-Chen

6. New Resume: Hsia, Ju-Wen: Chairman, AAC Technologies Corp. Chen, Meng-Fen: General Manager, Chang-Chieh Management Consulting Co., Ltd. Ting, Yu-Chia: General Manager, KGI Financial Holding Co., Ltd. Liang, Min-Fang: Senior Vice President, AAC Technologies Corp. MORI SHOREI: Executive Director, Fujifilm Corporation, Japan FEI LIU: Attorney, Law Office of FEI LIU Wang, Wan-Chen: Senior Associate, CTBC Capital Co., Ltd.

7. Nature of Change (please enter 'resignation', 'dismissal', 'end of term', 'deceased', or 'new appointment'): End of Term

8. Reason for Change: Full board renewal upon expiration of term

9. Shareholding of New Appointees at Time of Election: Director: Hsia, Ju-Wen – 1,573,459 shares Director: Chen, Meng-Fen – 63,000 shares Director: Ting, Yu-Chia (representative of Yechang International Co., Ltd.) – 20,539,158 shares Director: Liang, Min-Fang (representative of Yechang International Co., Ltd.) – 20,539,158 shares Independent Director: MORI SHOREI – 0 shares Independent Director: FEI LIU – 0 shares Independent Director: Wang, Wan-Chen – 22,000 shares

10. Previous Term (e.g., 06/21/2023 ~ 06/20/2026): 06/21/2023 ~ 06/20/2026

11. Effective Date of New Appointment: 06/23/2026

12. Director Turnover Rate During Same Term: Not applicable

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

14. Supervisor Turnover Rate During Same Term: Not applicable

15. Is there a change involving one-third or more of the directors? (yes/no): No

16. Other Matters to be Disclosed (if the subject is a publicly issued company, this information also qualifies as a material event under Article 7, Paragraph 6 of the Enforcement Rules of the Securities and Exchange Act): None