【Chang Wah*】Company Announces Cumulative Disposal of Same Marketable Securities Exceeding NT$300 Million

1. Name of Securities: Common shares of Chipbond Technology Corp. 2. Transaction Dates: 2026/4/13~2026/5/4 3. Date of Board Resolution: Not applicable 4. Other Approval Date: Approval level: Handled according to company's approval authority; May 4, 2026 5. Transaction Quantity, Unit Price, and Total Transaction Amount: Transaction Quantity: 2,211,000 shares; Unit Price: Average of NT$139.91 per share; Total Transaction Amount: NT$309,338 thousand 6. Disposal Gain (or Loss) (not applicable for acquisition of marketable securities): Disposal gain NT$164,198 thousand 7. Relationship with the Investee Company: None 8. As of now, Cumulative Holding Quantity, Amount, Shareholding Ratio, and Restricted Rights (e.g., pledging) of this Transaction Security (including this transaction): Cumulative Holding Shares: 34,794 thousand shares; Cumulative Holding Amount: NT$2,267,405 thousand; Shareholding Ratio: 4.67%; Restricted Rights: None 9. As of now, the Proportion of Investment in Marketable Securities (including this transaction) listed in Article 3 of the "Regulations Governing the Acquisition and Disposal of Assets by Public Companies" to the Total Assets and Equity Attributable to Owners of the Parent in the Company's Latest Financial Report, and the Amount of Working Capital in the Latest Financial Report: Proportion to total assets in the company's latest financial report: 84.22%; Proportion to equity attributable to owners of the parent: 121.76%; Working capital in the financial report: NT$5,976,847 thousand 10. Specific Purpose of Acquisition or Disposal: To realize capital gains and contribute to overall shareholder equity. 11. Opinions of Dissenting Directors on this Transaction: None 12. This transaction is a related party transaction: No 13. Counterparty and its Relationship with the Company: None 14. Date of Approval by Supervisors or Audit Committee: Not applicable 15. Date of previously announced material information on the same event: Not applicable 16. Other Explanations: Board resolution on 2021/9/15 to dispose of Chipbond (6147) common shares in installments, not exceeding the authorized amount of NT$2,500,000 thousand. (1) Current execution rate: 77.28% (2) Estimated cumulative holding shares after completion of disposal: 31,621 thousand shares (calculated based on closing price on 2026/5/4) (3) Estimated cumulative holding amount after completion of disposal: NT$2,060,762 thousand (4) Estimated shareholding ratio after completion of disposal: 4.25%. Keywords: Material Information