Huangpu Announces Additional Contract for Residential Construction Project in Yingge District, New Taipei City

1. Type of Contract: Construction Contract 2. Date of Occurrence: June 24, 115 (2026) ~ June 24, 115 (2026) 3. Board Approval Date: June 24, 115 (2026) 4. Other Approval Dates: Not applicable 5. Counterparty and Relationship with the Company: Anxing Construction Co., Ltd., not a related party of the company. 6. Main Contents of the Contract (including total contract amount, expected investment amount, and contract start and end dates), restrictive clauses, and other important terms: Main contents: In response to the actual progress of the construction project, an additional subcontracting agreement is signed. The additional amount is NT$86,117,460 (including tax), and the total contract amount after the addition is NT$950,537,460 (including tax). Restrictive clauses and other important terms: None. 7. Name of Professional Appraisal Firm or Company and Appraisal Result: Not applicable 8. Name of Real Estate Appraiser: Not applicable 9. License Number of Real Estate Appraiser: Not applicable 10. Specific Purpose of Acquisition: Not applicable 11. Dissenting Director's Opinion on the Transaction: Not applicable 12. Whether the Transaction is a Related-Party Transaction: No 13. Date of Supervisor's Approval or Audit Committee's Consent: June 24, 115 (2026) 14. Whether the Appraisal Report is at a Limited Price, Specific Price, or Special Price: No or Not applicable 15. Whether the Appraisal Report Has Not Yet Been Obtained: No or Not applicable 16. Reason for Not Yet Obtaining the Appraisal Report: Not applicable 17. Reasons for Significant Differences in Appraisal Results and Auditor's Opinion: Not applicable 18. Name of Accounting Firm: Not applicable 19. Name of Auditor: Not applicable 20. License Number of Auditor: Not applicable 21. Previous Date of Material Information Disclosure on the Same Event: May 12, 112 (2023) 22. Other Statements: None