EBC Announces Cost Adjustment for Group Headquarters Construction Project by Key Subsidiary Donglin Assets

1. Factual Date: 2026/07/07 2. Original Announcement Date: 2023/05/29 3. Summary of Original Announcement: The originally projected construction cost was raised to NT$12 billion. 4. Reasons for Change and Main Content: Due to design modifications and the global pandemic in recent years, which caused significant increases in raw material prices and labor shortages, the project's construction costs have substantially risen. The total estimated construction cost is now adjusted to NT$13.422 billion. 5. Impact on Company's Financial and Business Operations: No significant impact. 6. Other Matters to be Disclosed: None.