[Shinyang Construction] Announcement regarding Board approval of Bank Syndicated Loan

1. Date of occurrence: May 21, 2026 2. Counterparty to the contract/commitment: A syndicated bank group including Taipei Fubon Commercial Bank, Mega International Commercial Bank, and Chang Hwa Commercial Bank. 3. Relationship with the company: None. 4. Duration of contract/commitment: Five years from the date of initial utilization. 5. Main content: Syndicated loan agreement for a total limit of 16.8 billion NTD. (Company borrowing limit: 8.4 billion NTD; Yichuan Development borrowing limit: 8.4 billion NTD). 6. Restrictions: Subject to the syndicated loan agreement. 7. Commitments: Subject to the syndicated loan agreement. 8. Other important terms: Subject to the syndicated loan agreement. 9. Impact on company finance/business: Strengthening of operating capital. 10. Specific purpose: Partial repayment of 2023 syndicated loan balance, Hsinchu Imperial City Phase 2 development project, and associated infrastructure construction. 11. Other notes: None.