Subsidiary Acquires TSMC Shares for Approximately NT$95.7 Million

Disclosure Date: June 26, 2026 Statement Date: June 25, 2026 Statement Time: 17:30:57 Company Code: 2939 Company Name: Yung Yi-KY

Subject: Announcement by Subsidiary, Yung Yi International Holdings BVI Co., Ltd. Taiwan Branch, Regarding Acquisition of Securities

Applicable Clause: Clause 20 Factual Date: June 25, 2026

Details:

1. Security Name: TSMC Ordinary Shares

2. Transaction Date: June 25, 2026

3. Board Approval Date: June 25, 2026

4. Other Approval Dates: Approval Level: Chairman Approval Date: June 25, 2026

5. Transaction Quantity, Unit Price, and Total Amount: Quantity (Shares): 40,000 Unit Price (NT$): 2,393.41 Total Transaction Amount (NT$): 95,736,230

6. Gain (or Loss) on Disposal (Not Applicable for Acquisition): Not Applicable

7. Relationship with the Target Company: None

8. Cumulative Holdings of the Security (Including This Transaction) to Date: Balance Held: 40,000 shares, Amount: NT$95,736,230 Ownership Percentage: 0.00015%, Rights Restrictions: None

9. Proportion of Securities Investments (Including This Transaction) Under Paragraph 3 of the 'Regulations Governing the Acquisition or Disposition of Assets by Publicly Issued Companies' to the Company's Latest Financial Statements: Percentage of Total Assets: 11.86% Percentage of Equity Attributable to Owners of Parent: 17.38% Working Capital Amount: NT$573,347,000

10. Specific Purpose of Acquisition or Disposition: To enhance capital utilization efficiency.

11. Dissenting Directors' Opinions on This Transaction: None

12. Whether This Transaction is a Related-Party Transaction: No

13. Counterparty and Relationship with the Company: Not Applicable

14. Date of Supervisor Approval or Audit Committee Consent: June 25, 2026

15. Previous Material Information Disclosure Date for the Same Event: Not Applicable

16. Other Explanatory Matters: None