[Hwa Kuo] Announcement: Submission of Urban Renewal Business Plan and Rights Exchange Plan

1. Contract Type: Joint construction and profit sharing 2. Date of Occurrence: 2026/4/27~2026/4/27 3. Board of Directors Approval Date: Not applicable 4. Other Approval Date: Approval Level: Chairman's approval April 27, 2026 (R.O.C. year 115) 5. Counterparties and their relationship with the company: (1) Counterparties: 45 natural persons, Weijia International Co., Ltd., and the Judicial Yuan, R.O.C. (2) Relationship with the company: Non-related parties 6. Main content of the contract (including total contract amount, estimated investment amount, and contract start and end dates), restrictive clauses, and other important agreed matters: (1) Main content of the contract: Landowners provide land parcel 422, Section 6, Ren'ai Segment, Daan District, Taipei City, totaling 2,172 square meters (approximately 657.03 ping). The joint burden ratio is approximately 42.34%. The company's estimated investment amount is approximately NT$4.435 billion. (2) Restrictive clauses and other important agreed matters: None 7. Professional appraiser firm or company name and appraisal results: (1) Yufeng Real Estate Appraisers Joint Office; evaluated distribution value ratio: 56%-62% (landowners): 44%-38% (developer) (2) Yeh Mei-Li Real Estate Appraisers Joint Office; evaluated distribution value ratio: 57%-59.8% (landowners): 43%-40.2% (developer) 8. Real estate appraiser names: (1) Chen Chih-Hao, Chang Po-Yu, Huang Tzu-Ni (2) Tseng Sung-Yu 9. Real estate appraiser license numbers: (1) 108北市估字第000268號, 111北市估字第000312號, 115北市估字第000359號 (2) 105北市估字第000235號 10. Specific purpose of acquisition: Construction and sale of houses 11. Opinions of directors expressing dissent in this transaction: None 12. Is this transaction a related-party transaction: No 13. Date of approval by supervisors or audit committee: Not applicable 14. Is the appraisal report a limited price, specific price, or special price: No or not applicable 15. Has the appraisal report not yet been obtained: No or not applicable 16. Reasons for not yet obtaining the appraisal report: Not applicable 17. If there is a significant difference in the appraisal results, the reason for the difference and the CPA's opinion: None 18. CPA firm name: None 19. CPA name: None 20. CPA license number: None 21. Date of previous material information release on the same event: Not applicable 22. Other matters to be stated: None