Huang Hsiang Announces Acquisition of Securities

1. Security Name: Yageo Corporation

2. Transaction Date: 2026/6/22 ~ 2026/6/22

3. Board Approval Date: Not applicable

4. Other Approval Dates: Approval Level: Chairman Approval Approved on June 22, 2026 (Minguo Year 115)

5. Transaction Quantity, Unit Price, and Total Amount: Quantity: 300,000 shares Average Price per Share: NT$1,071.91 Total Transaction Amount: NT$321,574 thousand

6. Gain (or Loss) on Disposal (Not applicable for acquisition of securities): Not applicable

7. Relationship with the Target Company: None

8. Cumulative Holdings of the Security (including this transaction) to Date: Quantity: 300,000 shares Amount: NT$321,574 thousand Ownership Percentage: 0.014%

9. Proportion of Marketable Securities Investment (including this transaction) under Article 3 of the 'Asset Acquisition and Disposal Rules for Publicly Issued Companies' to Total Assets and Equity Attributable to Owners of Parent in the Most Recent Financial Statements, and Working Capital: Percentage of Total Assets: 0.581% Percentage of Equity Attributable to Owners of Parent: 2.153% Working Capital: NT$14,739,777 thousand

10. Specific Purpose of Acquisition or Disposal: To enhance the capital utilization efficiency of the company

11. Dissenting Director's Opinion on this Transaction: Not applicable

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

13. Counterparty and its Relationship with the Company: Not applicable

14. Date of Supervisor Approval or Audit Committee Consent: Not applicable

15. Previous Date of Material Information Disclosure on the Same Event: Not applicable

16. Other Statements: None