TSMC Subsidiary Acquires Fixed-Income Securities (Bonds)

Announcement Date: May 20, 115 Announcement Time: 16:29:46 Company Code: 2330 Company Name: TSMC Subject: Announcement regarding the acquisition of fixed-income securities by our subsidiary, TSMC Global Ltd. Compliance Clause: Article 20 Date of Event: May 19, 115 Explanation: 1. Name of Security: Corporate Bonds. 2. Transaction Date: 1/7/115 - 5/19/115 3. Board Approval Date: N/A 4. Other Approval Date: N/A 5. Transaction Quantity, Unit Price, and Total Amount: 902613AP3: 100,000 units; Unit price US$100.51; Total amount US$10.1 million. 6. Profit/Loss on Disposal: N/A 7. Relationship with Target: None. 8. Cumulative Holding (including this transaction): 902613AP3: 120,000 units; US$12.0 million; Holding ratio: N/A; Encumbrance: None. 9. Ratio to Total Assets/Equity per latest financial statement: 5.98%; 7.39%; Working capital: NT$325,002 million. 10. Purpose: Fixed-income investment. 11. Dissenting Opinion: N/A 12. Related Party Transaction: No 13. Counterparty Relationship: N/A 14. Audit Committee Approval Date: N/A 15. Date of previous disclosure: N/A 16. Other notes: None.