[Namchow] Announcement regarding changes to the company's Audit Committee members

1. Date of change: 2026/05/28 2. Name of functional committee: Audit Committee 3. Names of outgoing members: Wang Chao-chin, Su Er-lang, Zhang Bo-ren, Wu Huang-yuan 4. Profiles of outgoing members: Wang Chao-chin: Independent Director, Namchow Chemical Pharmaceutical Co., Ltd. Su Er-lang: Independent Director, Namchow Chemical Pharmaceutical Co., Ltd. Zhang Bo-ren: Independent Director, Namchow Chemical Pharmaceutical Co., Ltd. Wu Huang-yuan: Independent Director, Namchow Chemical Pharmaceutical Co., Ltd. 5. Names of incoming members: Zhang Bo-ren, Xu Li-qun, Xu Ya-fen, Wu Ya-juan 6. Profiles of incoming members: Zhang Bo-ren: Independent Director of the Company Xu Li-qun: Professor, Department of Accountancy and Institute of Finance, National Cheng Kung University Xu Ya-fen: Managing Partner, Yun-An Law Firm Wu Ya-juan: Certified Public Accountant, Wu Ya-juan CPA Firm 7. Nature of change: Expiration of term 8. Reason for change: 2026/05/28 9. Original term: 2026/05/28 ~ 2029/05/27 10. Effective date of new appointment: 2026/05/28 11. Other matters: None