【TSMC】Our Company, on behalf of subsidiary TSMC Global Ltd., Announces Acquisition of Fixed Income Securities

1. Securities name: Corporate bonds. 2. Transaction dates: 2026/4/27~2026/5/13 3. Date of board approval: Not applicable 4. Other approval dates: Approval level: Not applicable May 13, 2026 5. Transaction quantity, unit price, and total transaction amount: 06051GGR4: 180,000 units; US$99.04 per unit; total amount US$17.8 million. 46647PEL6: 100,000 units; US$100.63 per unit; total amount US$10.1 million. 95000U2A0: 100,000 units; US$99.14 per unit; total amount US$9.9 million. 6. Disposal gain (or loss) (not applicable for acquisition of marketable securities): Not applicable 7. Relationship with the transaction target company: None. 8. As of now, the quantity, amount, shareholding ratio, and restricted rights (e.g., pledge status) of the accumulated holding of these transaction securities (including this transaction): 06051GGR4: 180,000 units; US$17.8 million; shareholding ratio: Not applicable; restricted status: None. 46647PEL6: 730,000 units; US$73.5 million; shareholding ratio: Not applicable; restricted status: None. 95000U2A0: 1,114,000 units; US$109.9 million; shareholding ratio: Not applicable; restricted status: None. 9. As of now, the proportion of investment in marketable securities (including this transaction) listed in Article 3 of the "Regulations Governing the Acquisition and Disposal of Assets by Public Companies" to the total assets and equity attributable to owners of the parent company in the latest financial report, and the amount of working capital in the latest financial report: 5.98%; 7.38%; NT$325,002 million. 10. Specific purpose of acquisition or disposal: Fixed income investment. 11. Opinions of dissenting directors on this transaction: Not applicable 12. Is this transaction a related party transaction: No 13. Counterparty to the transaction and its relationship with the company: Not applicable 14. Date of approval by supervisors or audit committee: Not applicable 15. Date of previous material information announcement for the same event: Not applicable 16. Other matters to be specified: None.