Tatsumi Engineering Announces Board Resolution to Issue First Secured Corporate Bond of 2026

1. Date of Board Resolution: July 20, 2026 2. Name of the Bond (e.g., XX Company's Xth Secured/Unsecured Corporate Bond): Tatsumi Engineering Co., Ltd. First Secured Ordinary Corporate Bond of 2026 3. Whether the issuance is under a blanket registration (Yes/No): No 4. Total Issuance Amount: NT$2,000,000,000 5. Face Value per Unit: NT$1,000,000 6. Issue Price: Issued at par value 7. Term of Issuance: 5 years 8. Interest Rate: Fixed rate; the Chairman is authorized to determine the rate based on market conditions at the time of issuance 9. Type, Name, Amount, and Terms of Collateral: Bank Guarantee 10. Use of Proceeds and Allocation Plan: Repayment of the principal amount of the 2021 First Secured Ordinary Corporate Bond upon maturity 11. Underwriting Method: Public offering through a securities underwriter 12. Bond Trustee: Mega International Commercial Bank Co., Ltd. 13. Underwriting or Distribution Institution: Land Bank of Taiwan 14. Issuance Guarantor: Land Bank of Taiwan 15. Agent for Principal and Interest Payment: Land Bank of Taiwan, Chang'an Branch 16. Certification Institution: Not applicable 17. Conversion into Shares (if applicable), Conversion Terms: Not applicable 18. Put Option Terms: Not applicable 19. Call Option Terms: Not applicable 20. Share Conversion Benchmark Date (for convertible, exchangeable, or subscription rights attached bonds): Not applicable 21. Potential Dilution of Equity (for convertible, exchangeable, or subscription rights attached bonds): Not applicable 22. Rationality and Necessity of Fundraising Following Cash Reduction (applicable if cash reduction was conducted in the current or previous year): Not applicable 23. Other Matters to be Disclosed: Any changes to the above issuance terms, along with other issuance-related matters and the selection of relevant institutions, are authorized to be determined by the Chairman based on market conditions.