Ko-Chia KY Announces Comprehensive Board Election Following Term Expiration

Release Date: June 24, 2026 Statement Date: June 23, 2026 Statement Time: 14:55:21 Company Code: 5215 Company Name: Ko-Chia KY Subject: Announcement of Comprehensive Election of Directors and Independent Directors Due to Term Expiration Applicable Clause: Clause 6 Factual Date: June 23, 2026

Details: 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): individual director, independent director 3. Former Positions and Names: Director: Lin Chih-Feng Director: Chen Yi-Cheng Director: Lee Fu-Tien Director: Lin Yu-Kai Director: Ho Ho-Ho Director: Lin Yi-Hung Independent Director: Wu Kuo-Hao Independent Director: Shih Cheng-Tung Independent Director: Chang Shih-Ho Independent Director: Lee Ji-Ping

4. Former Resumes: Director: Lin Chih-Feng - Chairman, Ko-Chia (Cayman) Corporation Director: Chen Yi-Cheng - Director, Ko-Chia (Cayman) Corporation Director: Lee Fu-Tien - Chairman, Wujiang Xinwan Electronic & Plastic Co., Ltd. Director: Lin Yu-Kai - Vice Chairman, Ko-Chia (Cayman) Corporation Director: Ho Ho-Ho - General Manager, Ko-Chia (Cayman) Corporation Director: Lin Yi-Hung - Deputy General Manager, Ko-Chia (Cayman) Corporation Independent Director: Lee Ji-Ping - Chairman, Anxin Investment Independent Director: Wu Kuo-Hao - General Manager, Suzhou Lianweicheng Electronic Technology Co., Ltd. (Taiwan Branch) Independent Director: Shih Cheng-Tung - Executive Director, Youmei Investment Company Independent Director: Chang Shih-Ho - Principal Attorney, Zhiyan Law Firm

5. New Positions and Names: Director: Lin Chih-Feng Director: Lee Fu-Tien Director: Lin Yu-Kai Director: Ho Ho-Ho Director: Lin Yi-Hung Director: Chen Yi-Cheng Independent Director: Wu Kuo-Hao Independent Director: Shih Cheng-Tung Independent Director: Chang Shih-Ho Independent Director: Hsieh Ai-Li

6. New Resumes: Director: Lin Chih-Feng - Chairman, Ko-Chia (Cayman) Corporation Director: Lee Fu-Tien - Chairman & General Manager, Wujiang Xinwan Electronic & Plastic Co., Ltd. Director: Lin Yu-Kai - Vice Chairman, Ko-Chia (Cayman) Corporation Director: Ho Ho-Ho - General Manager, Ko-Chia (Cayman) Corporation Director: Lin Yi-Hung - Deputy General Manager, Ko-Chia (Cayman) Corporation Director: Chen Yi-Cheng - Physician, Huichuan Hospital; Director, Jiahuang Construction Independent Director: Wu Kuo-Hao - General Manager, Suzhou Lianweicheng Electronic Technology Co., Ltd. (Taiwan Branch) Independent Director: Shih Cheng-Tung - Executive Director, Youmei Investment Company Independent Director: Chang Shih-Ho - Principal Attorney, Zhiyan Law Firm Independent Director: Hsieh Ai-Li - Technology Reporter, Economic Daily

7. Nature of Change (please enter 'resignation', 'dismissal', 'term expiration', 'death', or 'new appointment'): term expiration 8. Reason for Change: term expiration 9. Shareholding at Time of Appointment: Director: Lin Chih-Feng - 1,579,000 shares Director: Lee Fu-Tien - 2,017,290 shares Director: Lin Yu-Kai - 1,971,500 shares Director: Ho Ho-Ho - 1,667,383 shares Director: Lin Yi-Hung - 294,006 shares Director: Chen Yi-Cheng - 0 shares Independent Director: Wu Kuo-Hao - 0 shares Independent Director: Shih Cheng-Tung - 0 shares Independent Director: Chang Shih-Ho - 0 shares Independent Director: Hsieh Ai-Li - 0 shares

10. Previous Term (e.g., 06/27/2023 ~ 06/26/2026): 06/27/2023 ~ 06/26/2026 11. Effective Date of New Appointment: 06/23/2026 ~ 06/22/2029 12. Director Turnover Rate During Same Term: Not applicable (due to comprehensive election upon full board term expiration) 13. Independent Director Turnover Rate During Same Term: Not applicable (same reason as above) 14. Supervisor Turnover Rate During Same Term: Not applicable 15. Is the change involving one-third or more of the directors? (yes/no): Not applicable 16. Other Matters to Clarify: The current directors and independent directors of the company will have their terms expire on June 26, 2026. According to Article 77 of the company's bylaws, if the shareholders' meeting elects a new full board before the current directors' term ends and the election takes effect immediately ('comprehensive election'), unless otherwise resolved by the shareholders' meeting, the current directors' terms shall be deemed to have expired immediately prior to the comprehensive election.