[Taiyen] Announcement of Updates to Partial Content of the 2025 Annual Report

1. Date of occurrence: 2026/05/29 2. Company name: Taiyen Biotech Co., Ltd. 3. Relationship with the company: The company itself 4. Mutual shareholding ratio: Not applicable 5. Reason for occurrence: Correction of partial content in the 2025 annual report 6. Corrected information item/report name: 2025 Annual Report 7. Content before correction: (See original text for page numbers and dates) 8. Content after correction: (See original text for page numbers and dates) 9. Countermeasures: Re-upload the corrected annual report to the Market Observation Post System 10. Other matters to be stated: None