[TSMC] Announcement on behalf of subsidiary TSMC Global Ltd. regarding the acquisition of fixed-income securities

1. Name of securities: Corporate bonds. 2. Transaction dates: 2026/01/05 ~ 2026/04/22 3. Date of board of directors' approval: Not applicable 4. Date of other competent authority approval: Not applicable, 2026/04/22 5. Transaction volume, unit price, and total transaction amount: 95000U2A0: 150,000 units; US$99.19 per unit; Total US$14.9 million. 38141GC77: 120,000 units; US$100.59 per unit; Total US$12.1 million. 06051GKW8: 109,750 units; US$100.77 per unit; Total US$11.1 million. 61747YEV3: 100,000 units; US$102.82 per unit; Total US$10.3 million. 95000U3L5: 100,000 units; US$101.31 per unit; Total US$10.1 million. 7. Relationship with the target company: None. 8. Current cumulative volume, amount, and shareholding percentage: 95000U2A0: 1,014,000 units; US$99.9M 38141GC77: 1,660,000 units; US$167.2M 06051GKW8: 134,750 units; US$13.6M 61747YEV3: 372,500 units; US$38.2M 95000U3L5: 632,360 units; US$64.0M 9. Ratio of total securities investment to total assets and equity: 6.09%; 8.17%; Working capital NT$325,002 million. 10. Purpose of acquisition: Fixed income investment.