TSMC Announces Board Resolution for Capital Increase in Subsidiary TSMC Arizona Corporation

1. Date of board resolution: May 12, 2026 2. Source of capital increase: Cash capital increase 3. Whether to adopt an overall registration for new share issuance (Yes, please specify the planned issuance period / No): No 4. Total issuance amount and number of shares for the entire case (if it is a capital increase from earnings or capital reserves, the number of shares does not include those allocated to employees): Not exceeding US$20 billion; not exceeding 20 million shares 5. Cases adopting overall registration for new share issuance, the amount and number of shares issued this time: Not applicable 6. Cases adopting overall registration for new share issuance, the remaining amount and number of shares after this issuance: Not applicable 7. Par value per share: US$0.001 8. Issuance price: US$1,000 per share 9. Employee subscription shares or allocated amount: Not applicable 10. Public sale shares: Not applicable 11. Proportion of original shareholder subscription or gratuitous allocation: 100% 12. Handling of odd lots and unsubscribed shares after the deadline: Not applicable 13. Rights and obligations of new shares issued this time: Same as existing shares 14. Purpose of this capital increase: To engage in the manufacturing, sales, and testing of integrated circuits and other semiconductor devices 15. Other matters to be specified: To be implemented after approval from the competent authority.