Hoshoko Announces Acquisition of Marketable Securities

1. Security Name: Yageo Corporation

2. Transaction Date: 115/7/1 ~ 115/7/1

3. Board Approval Date: Not applicable

4. Other Approval Dates: Approval Level: Chairman's Decision July 1, 2026 (Minguo Year 115)

5. Transaction Quantity, Unit Price, and Total Amount: Transaction Quantity: 432,000 shares Average Price per Share: NT$1,186.57 Total Transaction Amount: NT$512,598 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 Securities (including this transaction) to Date – Quantity, Amount, Ownership Percentage, and Restrictions (e.g., Pledge Status): Quantity: 432,000 shares Amount: NT$512,598 thousand Ownership Percentage: 0.021%

9. Cumulative Marketable Securities Investment under Paragraph 3 of the 'Asset Acquisition and Disposal Rules for Publicly Issued Companies' (including this transaction), as a Percentage of Total Assets and Equity Attributable to Owners of the Parent in the Company's Latest Financial Statements, and the Amount of Working Capital: Percentage of Total Assets: 0.926% Percentage of Equity Attributable to Owners of the Parent: 3.432% Working Capital: NT$14,739,777 thousand

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

11. Directors' Dissenting Opinions 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's Approval or Audit Committee's Consent: Not applicable

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

16. Other Explanatory Matters: None