ASE Technology Holding Announces Board Resolution to Issue First Series of Unsecured Corporate Bonds for 2026

1. Board resolution date: 115/04/09 2. Name of bond (XX Company's Xth secured/unsecured corporate bond): ASE Technology Holding Co., Ltd. 2026 First Series Unsecured Corporate Bond 3. Is it a global offering? (Yes/No): No 4. Total issue amount: Not exceeding NT$20,000,000,000. 5. Face value per bond: NT$1,000,000. 6. Issue price: Issued at 100% of face value. 7. Term: Not exceeding 10 years. 8. Interest rate: Fixed rate, not exceeding 2.2% per annum. Simple interest paid annually from the issuance date. 9. Type, name, amount, and terms of collateral: Not applicable. 10. Purpose and utilization plan of funds raised: Repayment of debt. 11. Underwriting method: Entrusted to underwriters for public offering. 12. Trustee for the bonds: To be determined. 13. Underwriting or sub-underwriting institution: To be determined. 14. Guarantor: Not applicable. 15. Paying agent: To be determined. 16. Certifying institution: Not applicable. 17. Conversion method if convertible shares exist: Not applicable. 18. Put option terms: Not applicable. 19. Call option terms: Not applicable. 20. Conversion, exchange, or subscription rights basis date: Not applicable. 21. Potential dilution if conversion, exchange, or subscription rights exist: Not applicable. 22. Other matters to be noted: Following the board's resolution, regarding the issuance terms, issuance plan, funding sources, project details, fund utilization progress, and expected benefits, if revised by the competent authority or adjusted due to operational evaluation or objective environmental needs, the chairman or their designated financial officer will be authorized to execute based on market conditions.