【Huang Hsiang】Announcement of Acquisition of Marketable Securities

1. Securities Name: Taiwan Semiconductor Manufacturing Company Limited 2. Transaction Date: 115/4/28~115/4/28 (April 28, 2026) 3. Date of Board of Directors' Resolution: Not applicable 4. Other Approval Dates: Approval Level: Chairman's approval April 28, 2026 5. Transaction Volume, Unit Price, and Total Transaction Amount: Transaction Volume: 570,000 shares Average Price Per Share: NTD 2,229.24 Total Transaction Amount: NTD 1,270,668 thousand 6. Disposal Gain (or Loss) (Not applicable for acquisition of marketable securities): Not applicable 7. Relationship with the Counterparty of the Transaction: None 8. As of now, the cumulative number, amount, shareholding ratio, and restrictions on rights (e.g., pledges) of the securities held (including this transaction): Number: 677,000 shares Amount: NTD 1,512,167 thousand Shareholding Ratio: 0.003% 9. As of now, the ratio 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: Ratio to Total Assets: 2.297% Ratio to Equity Attributable to Owners of Parent Company: 8.506% Working Capital: NTD 14,739,777 thousand 10. Specific Purpose of Acquisition or Disposal: To enhance the capital utilization efficiency of the Company 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 material information announcement on the same event: Not applicable 16. Other Explanatory Matters: None Keywords: Material Information