[TSMC] Announcement of Acquisition of Fixed-Income Securities by Subsidiary TSMC Global Ltd.

1. Name of security: Corporate bonds 2. Transaction date: 115/5/27 3. Board approval date: N/A 4. Other approval date: 115/05/27 5. Quantity, unit price, and total amount: 46647PEP7: 127,000 units, 100.06 USD/unit, 12.7 million USD total. 172967LD1: 100,000 units, 99.66 USD/unit, 10.0 million USD total. 6. Gain/Loss on disposal: N/A 7. Relationship with issuer: None 8. Cumulative holdings: 46647PEP7: 477,000 units, 47.7 million USD. 172967LD1: 2,497,100 units, 249.2 million USD. 9. Asset ratio: 6.00%; 7.41%; Working capital: 325,002 million NTD. 10. Purpose: Fixed-income investment 11. Dissenting opinion: N/A 12. Related party transaction: No 13. Counterparty: N/A 14. Audit committee approval date: N/A 15. Previous disclosure date: N/A 16. Other: None