TSMC Announces 3rd Series of Unsecured Ordinary Corporate Bonds (Green Bonds) for 2026

1. Board resolution date: Not applicable 2. Name (e.g., XX Company's Xth Secured/Unsecured Corporate Bond): TSMC 3rd Series of Unsecured Ordinary Corporate Bonds (Green Bonds) for 2026 3. Is this a shelf registration for corporate bonds? (Yes/No): No 4. Total issuance amount: NT$18.5 billion, divided into two categories based on maturity: Category A (NT$14 billion) and Category B (NT$4.5 billion) 5. Face value per bond: NT$10 million 6. Issue price: Issued at par value 7. Maturity: Category A – 5 years; Category B – 10 years 8. Interest rate: Fixed annual rate of 2.03% for Category A; 2.10% for Category B 9. Collateral type, name, amount, and terms: None 10. Use of proceeds and funding plan: Expenditures related to green buildings and environmental sustainability 11. Underwriting method: Publicly underwritten through securities underwriters via negotiated sales 12. Bond trustee: Taipei Fubon Commercial Bank Co., Ltd. 13. Underwriting or distribution institution: Taishin Securities Co., Ltd. appointed as lead underwriter 14. Issuance guarantor: None 15. Agent for principal and interest payment: Taipei Fubon Commercial Bank Co., Ltd., Shifu Branch 16. Certification agency: None 17. Conversion into shares – conversion terms (if applicable): Not applicable 18. Put option terms: None 19. Call option terms: None 20. Share conversion benchmark date (if applicable): Not applicable 21. Potential dilution of equity (if applicable): Not applicable 22. Justification and necessity of fundraising after cash reduction (if applicable in current or prior year): Not applicable 23. Other disclosures: The board of directors approved the issuance of unsecured ordinary corporate bonds on February 10, 2026. This announcement follows the pricing of the 3rd series of corporate bonds (green bonds) for 2026.