【ASE Technology Holding】Supplementary Explanation Regarding the Announcement of the "FY115 First Unsecured Corporate Bonds" Issued on April 9, FY115

1. Board Resolution Date: NA 2. Name of Bonds [XX Company's Xth Secured/Unsecured Corporate Bonds]: ASE Technology Holding Co., Ltd. FY115 First Unsecured Corporate Bonds 3. Whether a Shelf Registration Statement for Issuance of Corporate Bonds is Adopted (Yes/No): No 4. Total Issuance Amount: Total issuance amount of NT$13 billion; Class A issuance amount of NT$2 billion, Class B issuance amount of NT$7.5 billion, Class C issuance amount of NT$3.5 billion. 5. Face Value Per Bond: NT$1 million. 6. Issue Price: Issued at 100% of face value on the issue date. 7. Issuance Period: Class A for 3 years, Class B for 5 years, Class C for 7 years. 8. Interest Rate: Class A: Fixed annual interest rate of 1.93%, Class B: Fixed annual interest rate of 1.98%, Class C: Fixed annual interest rate of 2.03%. 9. Type, Name, Amount, and Agreed Matters of Collateral: Not applicable. 10. Use of Proceeds and Utilization Plan: Repayment of debt. 11. Underwriting Method: Commissioned to securities underwriters for public underwriting through negotiation. 12. Trustee for Corporate Bonds: Taipei Fubon Commercial Bank Co., Ltd. 13. Underwriting or Selling Agent: Fubon Securities Co., Ltd. as the lead underwriter. 14. Bond Guarantor: None. 15. Principal and Interest Payment Agent: Hsin Nan Branch, First Commercial Bank Co., Ltd. 16. Certification Institution: Not applicable. 17. Conversion Method for Shares (if convertible): Not applicable. 18. Repurchase Conditions: None. 19. Buyback Conditions: None. 20. Conversion Basis Date (if convertible, exchangeable, or exercisable): Not applicable. 21. Potential Share Dilution (if convertible, exchangeable, or exercisable): Not applicable. 22. Other Matters to be Noted: After the board resolution for this case, concerning the issuance conditions, issuance methods, funding sources, project items, progress of fund utilization, expected benefits, and other related matters, if they are amended by the competent authority in the future, or if amendments or adjustments are needed due to operational assessments or objective environmental requirements, the chairman or their designated financial officer shall be authorized to make decisions based on market conditions.