[TSMC] Announcement by Subsidiary TSMC Global Ltd. Regarding Acquisition of Fixed Income Securities

1. Name of the Securities: Corporate Bonds. 2. Transaction Date: 2026/04/23 to 2026/04/23 3. Date of Board Approval: Not applicable 4. Other Approval Date: Approval level: Not applicable Date: April 23, 2026 5. Transaction Volume, Unit Price, and Total Amount: 38141GZR8: 270,000 units; Unit price US$ 99.36; Total amount US$ 26.8 million. 6. Gain (or Loss) from Disposal: Not applicable 7. Relationship with the Counterparty Company: None. 8. Cumulative Holdings of the Securities to Date (Including this transaction): 38141GZR8: 2,111,250 units; US$ 209.7 million; Shareholding ratio: Not applicable; Restrictions: None. 9. Ratio of Total Securities Investment to Total Assets and Shareholders' Equity, and Working Capital: 6.07%; 8.16%; NT$ 325,002 million. 10. Specific Purpose of Acquisition or Disposal: Fixed income investment. 11. Opinions of Dissenting Directors: Not applicable 12. Is it a Related Party Transaction: No 13. Counterparty and Its Relationship with the Company: Not applicable 14. Date of Approval by Supervisors or Audit Committee: Not applicable 15. Date of Previous Announcement on the Same Event: Not applicable 16. Other Matters: None.