Peier Biomedical Announces Change of Share Registrar Approved by TDCC

1. Factual Date: July 31, 2026 2. Company Name: Peier Biomedical Co., Ltd. 3. Relationship with Company:本公司 (the Company) 4. Cross-shareholding Ratio: Not applicable 5. Reason for Event: The company's share administration services were originally entrusted to the Share Services Division of KGI Securities Co., Ltd. Starting October 1, 2026, these services will be transferred to the Share Services Division of Taishin Securities Co., Ltd. This change has been officially acknowledged and recorded by the Taiwan Depository & Clearing Corporation (TDCC) via Letter No. 1150021775 dated July 30, 2026. 6. Response Measures: None. 7. Other Matters to be Disclosed: From October 1, 2026, all shareholders of the company must direct inquiries and procedures related to share transfers, dividend or stock receipt, address changes, share loss reporting, pledge establishment or cancellation, seal change or loss reporting, and other share-related matters to the Share Services Division of Taishin Securities Co., Ltd. either in person or by mail. The office address and contact information are listed below.

Address: B1, No. 96, Section 1, Jianguo North Road, Taipei City Phone: (02) 2504-8125