[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.