【Formosa】Announcement of Director Election at the 2026 Annual Shareholders' Meeting

1. Date of Change: 115/06/26

2. Category of Appointed or Changed Personnel (please enter: Corporate Director, Corporate Supervisor, Independent Director, Individual Director, or Individual Supervisor): Corporate Director, Independent Director, and Individual Director.

3. Former Title and Name: (1) Taiwan Chemical Fiber Corporation (Representative: Wang Wenyuan) (2) Taiwan Chemical Fiber Corporation (Representative: Hung Fuyuan) (3) Taiwan Chemical Fiber Corporation (Representative: Lee Ching-fen) (4) Taiwan Chemical Fiber Corporation (Representative: Lee Min-chang) (5) Taiwan Chemical Fiber Corporation (Representative: Lee Chien-kuan) (6) Taiwan Chemical Fiber Corporation (Representative: Wu Li-jen) (7) Changhua County Private Lai Shu-wang and Spouse Foundation for Social Welfare and Charity (Representative: Lee Man-chun) (8) Hsieh Ming-te (9) Lin Sheng-chung (Independent Director) (10) Kuo Nien-hsiung (Independent Director) (11) Kuo Chia-chi (Independent Director)

4. Former Personnel Resumes: (1) Wang Wenyuan, representative of Taiwan Chemical Fiber Corporation: Currently serves as Chairman of Formosa Enterprises Co., Ltd., and Director of Formosa Plastics Corporation, Nan Ya Plastics Corporation, Taiwan Chemical Fiber Corporation, and Formosa Petrochemical Corporation. Formerly served as Chairman of the Chinese National Federation of Industries, Chairman of the Chinese Textile Export Promotion Council, and Chairman of Taiwan Chemical Fiber Corporation. (2) Hung Fuyuan, representative of Taiwan Chemical Fiber Corporation: Currently serves as Chairman of Taiwan Chemical Fiber Corporation. (3) Lee Ching-fen, representative of Taiwan Chemical Fiber Corporation: Currently serves as Executive Vice President of Taiwan Chemical Fiber Corporation. (4) Lee Min-chang, representative of Taiwan Chemical Fiber Corporation: Currently serves as General Manager of Formosa Enterprises Co., Ltd. (5) Lee Chien-kuan, representative of Taiwan Chemical Fiber Corporation: Currently serves as Executive Vice President of Formosa Enterprises Co., Ltd. (6) Wu Li-jen, representative of Taiwan Chemical Fiber Corporation: Currently serves as Vice President of Formosa Enterprises Co., Ltd. (7) Lee Man-chun, representative of Changhua County Private Lai Shu-wang and Spouse Foundation: Currently serves as Certified Public Accountant at Lee Man-chun CPA Firm and Executive Director of Lai Shu-wang Foundation. (8) Hsieh Ming-te: Currently serves as Chairman of Yuyuan Textile and Shun-Jin Industrial Co., Ltd. (9) Lin Sheng-chung: Independent Director of Formosa Enterprises, currently serves as Independent Director of Taiwan Glass Industrial Corporation and Century Steel Structures Co., Ltd., and Advisor to the Chinese Association of Industrial and Commercial Organizations. (10) Kuo Nien-hsiung: Independent Director of Formosa Enterprises, currently serves as Director of Ho-Sung Technology Co., Ltd. (11) Kuo Chia-chi: Independent Director of Formosa Enterprises, currently serves as Certified Public Accountant at Kuo Chia-chi CPA Firm, Independent Director of Chih-Hsing Precision Machinery Co., Ltd., and Director of Fu-Hwa Innovation Co., Ltd.

5. New Appointees' Titles and Names: (1) Taiwan Chemical Fiber Corporation (Representative: Wang Wenyuan) (2) Taiwan Chemical Fiber Corporation (Representative: Hung Fuyuan) (3) Taiwan Chemical Fiber Corporation (Representative: Lee Min-chang) (4) Taiwan Chemical Fiber Corporation (Representative: Lee Chien-kuan) (5) Taiwan Chemical Fiber Corporation (Representative: Wu Li-jen) (6) Hsieh Ming-te (7) Lin Sheng-chung (Independent Director) (8) Kuo Nien-hsiung (Independent Director) (9) Kuo Chia-chi (Independent Director)

6. New Appointees' Resumes: (1) Wang Wenyuan, representative of Taiwan Chemical Fiber Corporation: Currently serves as Chairman of Formosa Enterprises Co., Ltd., and Director of Formosa Plastics Corporation, Nan Ya Plastics Corporation, Taiwan Chemical Fiber Corporation, and Formosa Petrochemical Corporation. Formerly served as Chairman of the Chinese National Federation of Industries, Chairman of the Chinese Textile Export Promotion Council, and Chairman of Taiwan Chemical Fiber Corporation. (2) Hung Fuyuan, representative of Taiwan Chemical Fiber Corporation: Currently serves as Chairman of Taiwan Chemical Fiber Corporation. (3) Lee Min-chang, representative of Taiwan Chemical Fiber Corporation: Currently serves as General Manager of Formosa Enterprises Co., Ltd. (4) Lee Chien-kuan, representative of Taiwan Chemical Fiber Corporation: Currently serves as Executive Vice President of Formosa Enterprises Co., Ltd. (5) Wu Li-jen, representative of Taiwan Chemical Fiber Corporation: Currently serves as Vice President of Formosa Enterprises Co., Ltd. (6) Hsieh Ming-te: Currently serves as Chairman of Yuyuan Textile and Shun-Jin Industrial Co., Ltd. (7) Lin Sheng-chung: Independent Director of Formosa Enterprises, currently serves as Independent Director of Taiwan Glass Industrial Corporation and Century Steel Structures Co., Ltd., and Advisor to the Chinese Association of Industrial and Commercial Organizations. (8) Kuo Nien-hsiung: Independent Director of Formosa Enterprises, currently serves as Director of Ho-Sung Technology Co., Ltd. (9) Kuo Chia-chi: Independent Director of Formosa Enterprises, currently serves as Certified Public Accountant at Kuo Chia-chi CPA Firm, Independent Director of Chih-Hsing Precision Machinery Co., Ltd., and Director of Fu-Hwa Innovation Co., Ltd.

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

8. Reason for Change: Re-election upon term expiration

9. Number of Shares Held by New Appointees at Time of Election: (1) Taiwan Chemical Fiber Corporation (Representatives: Wang Wenyuan, Hung Fuyuan, Lee Min-chang, Lee Chien-kuan, Wu Li-jen): 630,022,431 shares (2) Hsieh Ming-te: 15,583,818 shares (3) Lin Sheng-chung (Independent Director): 0 shares (4) Kuo Nien-hsiung (Independent Director): 0 shares (5) Kuo Chia-chi (Independent Director): 3,000 shares

10. Previous Term (e.g., xx/xx/xx ~ xx/xx/xx): 112/06/16 ~ 115/06/15

11. Effective Date of New Appointment: 115/06/26

12. Director Turnover Rate During Same Term: Not applicable, as it was a full re-election upon term expiration

13. Independent Director Turnover Rate During Same Term: Not applicable, as it was a full re-election upon term expiration

14. Supervisor Turnover Rate During Same Term: Not applicable

15. Is the change affecting 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 announcement qualifies as a material event under Article 7, Paragraph 6 of the Enforcement Rules of the Securities and Exchange Act, significantly affecting shareholders' rights or stock prices): Formosa Enterprises elected nine directors (including three independent directors) at the annual shareholders' meeting, and subsequently held a board meeting to reappoint Mr. Wang Wenyuan as Chairman of the Board.