[Yang Hwa] Announcement regarding the cumulative acquisition of Bank of Taiwan gold passbooks exceeding the NT$300 million threshold

1. Name and nature of the target: Bank of Taiwan Gold Passbook. 2. Date of occurrence: 2025/6/17 ~ 2026/6/1. 3. Date of Board approval: 2025/5/9. 4. Other decision dates: N/A. 5. Transaction quantity, unit price, and total amount: 67,500 grams acquired; average price NT$4,471.10; total amount NT$301,799,530. 6. Counterparty and relationship: Bank of Taiwan Co., Ltd.; not a related party. 7. Related party transaction details: N/A. 8. Ownership history: N/A. 9. Debt disposal: N/A. 10. Disposal profit/loss: N/A. 11. Payment terms: Subject to Bank of Taiwan's gold passbook regulations. 12. Basis for pricing: Based on Bank of Taiwan's gold passbook market price. 13. Net asset value per share: N/A. 14. Current holdings: N/A. 15. Asset acquisition/disposal ratio: N/A. 16. Brokerage fees: N/A. 17. Purpose: Investment. 18. Dissenting opinions: None. 19. Related party transaction: No. 20. Audit committee approval: N/A. 21-24. Accountant information: N/A. 25. Change in business model: No. 26-30. Other: N/A.