Yi-Chuan Announces Full Receipt of Proceeds from 7th Domestic Unsecured Convertible Corporate Bonds

1. Date of Event: 2026/07/21 2. Company Name: Yi-Chuan Precision Industry Co., Ltd. 3. Relationship to Company (please enter '本公司' or 'Subsidiary'):本公司 4. Cross-shareholding Ratio: Not applicable 5. Reason for Occurrence: In accordance with Article 9, Paragraph 1, Clause 2 of the 'Regulations Governing the Offering and Issuance of Securities by Issuers,' The entrusted bank for Yi-Chuan Precision Industry Co., Ltd.'s 7th domestic unsecured convertible bond issuance has fully collected all subscription proceeds and transferred the total amount of NT$2,006,000,000 to the designated escrow account as of the announcement date. This is hereby officially announced. 6. Response Measures: None 7. Other Matters to be Disclosed (If the subject of the event or resolution is a publicly issued company or above, this major information simultaneously qualifies as a matter under Article 7, Clause 9 of the Enforcement Rules of the Securities and Exchange Act that significantly affects shareholders' rights or securities prices): None Keyword: Major Information