Xiangji Quan's Subsidiary Haohan Power Announces Acquisition of Securities

1. Security Name: Nanya PCB Corporation Common Stock

2. Transaction Date: November 3, 2025 – July 22, 2026

3. Board Approval Date: Not applicable

4. Other Approval Date: Approval Level: Chairman July 22, 2026 (R.O.C. Year 115)

5. Quantity, Unit Price, and Total Transaction Amount: Acquired Quantity (in thousands of shares): 535 Unit Price (NT$): 758.75 Total Transaction Amount (NT$): 405,930,000

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, Amount, Ownership Percentage, and Restricted Rights (e.g., pledged): Holdings Balance: 200,000 shares, Amount: NT$261,000,000 Ownership Percentage: 0.03%, Restricted Rights: None

9. Cumulative Securities Investments (including this transaction) under Article 3 of the 'Asset Acquisition and Disposal Regulations for Publicly Issued Companies' as a percentage of Total Assets and Equity Attributable to Owners of Parent in the Company’s Latest Financial Statements, and the Amount of Working Capital in the Latest Financial Statements: Percentage of Total Assets: 198.54% Percentage of Equity Attributable to Owners of Parent: 201.87% Working Capital Amount: NT$274,167 thousand

10. Specific Purpose of Acquisition or Disposal: Investment portfolio management

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’s Approval or Audit Committee’s Consent: Not applicable

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

16. Other Disclosures: None