TSMC Announces Acquisition of Fixed Income Securities by Subsidiary

Announcement Date: May 21, 2026, 18:54 Company Name: TSMC Subject: Announcement regarding the acquisition of fixed income securities by subsidiary TSMC Global Ltd.

1. Name of Security: Corporate bonds 2. Transaction Date: May 21, 2026 3. Purpose: Fixed income investment 4. Quantity, Unit Price, and Total Amount: 150,000 units, 100.02 USD per unit, total amount 15 million USD. 5. Cumulative Holding Status: 250,000 units, 25 million USD. 6. Impact on Financial Indicators: Investments under Article 3 of the 'Regulations Governing the Acquisition and Disposal of Assets by Public Companies' account for 5.98% of total assets and 7.39% of equity attributable to owners of the parent in the latest financial statements.