【TSMC】Company's Subsidiary TSMC Global Ltd. Announces Acquisition of Fixed-Income Securities

1. Name of the securities: Corporate bonds. 2. Transaction dates: May 8, 2026 ~ May 12, 2026 3. Date of board of directors' resolution: Not applicable 4. Other approval dates: Approval level: Not applicable May 12, 2026 5. Quantity, unit price, and total transaction amount: 61690U8B9: 240,000 units; unit price US$101.09; total amount US$24.3 million. 61747YEV3: 100,000 units; unit price US$102.58; total amount US$10.3 million. 46647PEL6: 100,000 units; unit price US$100.67; total amount US$10.1 million. 6. Gain (or loss) on disposal (not applicable for acquisition of marketable securities): Not applicable 7. Relationship with the company of the transaction target: None. 8. As of now, the accumulated quantity, amount, shareholding ratio, and restricted rights (e.g., pledge) of these transaction securities (including this transaction) held: 61690U8B9: 752,500 units; US$76.0 million; shareholding ratio: Not applicable; restricted rights: None. 61747YEV3: 832,500 units; US$85.4 million; shareholding ratio: Not applicable; restricted rights: None. 46647PEL6: 630,000 units; US$63.4 million; shareholding ratio: Not applicable; restricted rights: None. 9. As of now, the proportion of investment in marketable securities listed under Article 3 of the "Regulations Governing the Acquisition or Disposal of Assets by Public Companies" (including this transaction) to the total assets and owner's equity attributable to the parent company in the latest financial report, and the amount of working capital in the latest financial report: 5.98%; 8.03%; 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. Transaction counterparty and its relationship with the company: Not applicable 14. Date of approval by supervisors or audit committee: Not applicable 15. Date of previous significant announcement on the same matter: Not applicable 16. Other specified matters: None.