Chang Hwa Announces Board Resolution on Disposal of Securities

1. Security Name: Ordinary shares of Chipbond Technology Corporation

2. Transaction Date: 2026/6/12~2026/6/12

3. Board Approval Date: June 12, 2026

4. Other Approval Dates: Not applicable

5. Transaction Quantity, Unit Price, and Total Amount: The company's board has resolved to dispose of ordinary shares of Chipbond Technology Corporation, up to 10,000,000 shares, in multiple transactions on the open market at market prices. The final total transaction amount will be determined based on the actual execution price and number of shares settled.

Subsequent actual transaction details will be announced and reported in accordance with relevant regulations.

6. Gain (or Loss) on Disposal (not applicable for acquisitions): Actual transaction results will be disclosed and reported as required by relevant laws and regulations.

7. Relationship with the Target Company: None

8. Cumulative Holdings of the Security (including this transaction) to Date – Quantity, Amount, Ownership Percentage, and Restricted Rights (e.g., Pledges): As of the board resolution date (2026/6/12), the following applies: (1) Cumulative number of shares held: 31,730,000 shares (2) Cumulative holding value: NT$2,115,676,000 (3) Ownership percentage: 4.26% (4) Rights restrictions: None

9. Proportion of Securities Investments (including this transaction) Listed under Article 3 of the 'Asset Acquisition and Disposal Rules for Publicly Issued Companies' to the Company’s Total Assets and Equity Attributable to Owners of the Parent in the Most Recent Financial Statements, and the Amount of Working Capital in the Most Recent Financial Statements: As of the board resolution date (2026/6/12), the following applies: (1) Percentage of total assets in the most recent financial statements: 128.77% (2) Percentage of equity attributable to owners of the parent: 189.13% (3) Working capital in financial statements: NT$5,976,847,000

10. Specific Purpose of Acquisition or Disposal: To realize capital gains, benefit overall shareholder equity, and improve the efficiency of resource allocation.

11. Dissenting Director's Opinion on This Transaction: None

12. Whether This Transaction is a Related-Party Transaction: No

13. Counterparty and Its Relationship with the Company: None

14. Date of Supervisor Approval or Audit Committee Consent: Not applicable

15. Previous Date of Material Information Disclosure on the Same Event: Not applicable

16. Other Explanatory Matters: The intended transaction period is within one year from June 12, 2026.