[Tong Hsing Electronic] Announcement of the company's board of directors' resolution to increase capital for its subsidiary TONG HSING ELECTRONICS PHILS. INC.

1. Name and nature of the subject matter (for preferred shares, the agreed terms of issuance, such as dividend rate, should also be specified): Name of the subject matter: Equity of TONG HSING ELECTRONICS PHILS. INC. 2. Date of occurrence of the event: 2026/4/14~2026/4/14 3. Date of board approval: April 14, 2026 4. Other approval dates: Not applicable 5. Transaction volume, unit price, and total transaction amount: Total capital increase amount: Up to USD 24,000 thousand 6. Counterparty and its relationship with the company (if the counterparty is a natural person and not a related party of the company, their name may be omitted): TONG HSING ELECTRONICS PHILS. INC. is a 100% owned subsidiary of the company. 7. If the counterparty is a related party, the reason for selecting the related party as the transaction object, the previous owner, the relationship between the previous owner and the company and the counterparty, the previous transfer date, and the transfer amount should also be announced: Not applicable 8. If the ownership of the transaction target has been a related party of the company within the past five years, the acquisition and disposal dates, prices, and the relationship with the company at the time of the transaction should also be announced: Not applicable 9. Matters related to the disposal of claims (including the type of collateral attached to the claims, if the claims are against a related party, the name of the related party and the book value of the claims against that related party should also be announced): Not applicable 10. Disposal profit (or loss) (not applicable to acquisition of securities) (for deferred items, the recognition status should be listed and explained): Not applicable 11. Delivery or payment terms (including payment period and amount), contract restrictions, and other important agreements: Capital injection in installments based on subsidiary's funding needs 12. Method of determining this transaction, reference basis for price determination, and decision-making unit: Resolution of the company's board of directors 13. Net asset value per share of the target company for acquisition or disposal of securities: NT$65.45 14. As of now, the cumulative quantity, amount, shareholding ratio, and restricted rights (e.g., pledge status) of this transaction's securities (including this transaction): (1) Cumulative investment amount: USD 76,698 thousand (2) Shareholding ratio: 100% (3) Restricted rights: None 15. As of now, the proportion of investment in securities listed in Article 3 of the 'Regulations Governing the Acquisition and Disposal of Assets by Public Companies' (including this transaction) to the company's total assets and equity attributable to owners of the parent in the most recent financial report, and the amount of working capital in the most recent financial report (Note 2): Proportion of total assets: 7.15% Proportion of equity attributable to owners of the parent: 9.14% Working capital amount: NT$6,396,057 thousand 16. Broker and brokerage fees: None 17. Specific purpose or use of acquisition or disposal: To meet the subsidiary's future operational expansion and factory enlargement plans 18. Opinions of dissenting directors on this transaction: None 19. Is this transaction a related party transaction: Yes 20. Date of approval by supervisors or audit committee: April 14, 2026 21. Accountant's opinion on this transaction is not reasonable: Not applicable 22. Name of accounting firm: Not applicable 23. Name of accountant: Not applicable 24. Accountant's license number: Not applicable 25. Does it involve a change in business model: No 26. Explanation of business model change: Not applicable 27. Transaction status with the counterparty in the past year and expected next year: Not applicable 28. Source of funds: Not applicable 29. Date of previous major announcement regarding the same event: Not applicable 30. Other matters to be specified: The company's board of directors resolved to increase capital for its subsidiary TONG HSING ELECTRONICS PHILS. INC. by USD 24,000 thousand, authorizing the chairman to proceed with capital increases and related investment operations in installments within the approved amount based on actual needs.