Highwealth Announces Signing of Construction and Decoration Contracts for 'Highwealth Creation Park' and 'Highwealth Four Seasons Park' with Related Party

1. Type of Contract: Self-owned land entrusted construction 2. Date of Occurrence of the Event: 2026/4/29~2026/4/29 3. Date of Board Approval: April 29, 2026 4. Other Approval Dates: Not applicable 5. Counterparty of the contract and its relationship with the company: (1) Counterparty: Pin Hsing Construction Co., Ltd. (2) Relationship with the company: Subsidiary 6. Main content of the contract (including total contract amount, estimated amount of participation, contract start and end dates), restrictive clauses and other important agreements: Highwealth Creation Park (1) Total contract amount: Intends to sign a "Building Decoration Engineering" contract with Pin Hsing Construction for NT$1,586,353,000 (2) Estimated amount of participation: Estimated within the limit of NT$7,000,000,000 (3) Contract start and end dates: Contract not yet signed (4) Restrictive clauses and other important agreements: None

Highwealth Four Seasons Park (1) Total contract amount: Intends to sign a "Building Decoration Engineering" contract with Pin Hsing Construction for NT$805,983,648 (2) Estimated amount of participation: Estimated within the limit of NT$1,600,000,000 (3) Contract start and end dates: Contract not yet signed (4) Restrictive clauses and other important agreements: None 7. Name of professional appraiser's office or company and appraisal results: Not applicable 8. Name of real estate appraiser: Not applicable 9. Real estate appraiser's license number: Not applicable 10. Specific purpose of acquisition: Constructing buildings for sale 11. Opinions of directors who expressed dissent to this transaction: None 12. This transaction is a related party transaction: Yes 13. Date of approval by supervisors or audit committee: April 29, 2026 14. Is the appraisal report for 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. Reason for not yet obtaining appraisal report: Not applicable 17. Reasons for significant differences in appraisal results and accountant's opinions: Not applicable 18. Name of accounting firm: Not applicable 19. Name of accountant: Not applicable 20. Accountant's license number: Not applicable 21. Date of previous material information announcement for the same event: Not applicable 22. Other matters to be specified: None