2330 TSMC: Announcement of Divestment of VIS Shares

Announcement Date: 2026/05/16 Speaker Date: 2026/05/15 Speaker Time: 19:24:19 Company Code: 2330 Company Name: TSMC Subject: Announcement of divestment of shares of Vanguard International Semiconductor Corporation Clause: No. 20 Date of Event: 2026/05/15 Explanation: 1. Name of Securities: Vanguard International Semiconductor Corporation Common Stock 2. Date of Transaction: 2026/5/15 ~ 2026/5/15 3. Board Approval Date: Not applicable 4. Other Approval Date: Approved by the Chairman on 2026/05/15 5. Quantity, Price, and Total Amount: Quantity: Max 152,000,000 shares, Expected price: within +/- 10% of 2026/5/15 closing price (176.5 TWD), Total amount: 24,145M to 29,511M TWD 6. Disposal Gain: Approx 71,816M TWD (including valuation gain of remaining stake) 7. Relationship: Equity-method affiliate 8. Cumulative holdings: 354,709,324 shares, Book value: 62,606M TWD, Holding ratio: 19.0% 9. Ratio of investments to total assets/equity: 39.1% of total assets, 48.3% of equity, Working capital: 325,002M TWD 10. Purpose: Divestment of equity investment 11. Objection by directors: Not applicable 12. Related party transaction: No 13. Counterparty relationship: Not applicable 14. Audit Committee: Not applicable 15. Prior major news: Not applicable 16. Other notes: Actual transaction date expected between 5/18 and 6/17.