[Tong Hsing Electronic] Announcement of Acquisition of Financial Products

1. Name and nature of the underlying asset: Name: Capital Securities 30-day TAIBIR 02 Range Accrual Principal-Guaranteed Product. Nature: 100% principal-guaranteed structured product. 2. Date of occurrence of the event: April 17, 2026 3. Date of passing by the board of directors: Not applicable 4. Date of other approval: April 17, 2026, handled according to authorization matrix. 5. Transaction volume, unit price, and total transaction amount: Capital Securities 30-day TAIBIR 02 Range Accrual Principal-Guaranteed Product -- NTD 900,000,000 6. Counterparty and its relationship to the Company: Capital Securities Corp.; non-related party 7-10. Not applicable. 11. Delivery or payment conditions, restrictive covenants, and other important stipulations: The transaction price payable will be remitted to the designated account on the transaction day; no major restrictive covenants. 12. Method of decision, reference basis for price determination, and decision-making unit: Based on the broker's quote and the company's authorization matrix. 13. Net worth per share of the underlying company acquired or disposed of: Not applicable 14. Cumulative number, amount, holding percentage, and restriction of rights of the traded security held to date: Amount: NTD 1,210,000,000. Restriction of rights: None. 15. Ratio of securities investment to total assets and equity: Total assets ratio: 6.74%; Equity ratio: 8.62%; Working capital: NTD 6,396,057 thousand. 16. Brokers and brokerage fees: None 17. Specific purpose or use of the acquisition: Financial investment. 18-30. Not applicable / None.