Dingshuan-KY Announces Subsidiary Longyang Electronics (Kunshan) Disposal of Deposit-Based Financial Product

1. Name and nature of the subject matter (if preferred shares, specify issuance terms such as dividend rate): Gongying Huixin FX-Linked RMB Structured Deposit A37884 Period C26A37884

2. Date of occurrence: 07/10/2026 ~ 07/10/2026

3. Board approval date: Not applicable

4. Other approval dates: Approval level: Executed in accordance with company authorization July 10, 2026

5. Transaction quantity, unit price, and total transaction amount: A37884 Period C26A37884 30-day: RMB 40 million

6. Counterparty and its relationship with the company (if the counterparty is an individual and not a related party, name disclosure may be omitted): China CITIC Bank Co., Ltd.; Relationship with the company: None

7. If the counterparty is a related party, state the reason for selecting the related party, the previous transferor, the relationship among the previous transferor, the company, and the counterparty, the previous transfer date, and transfer amount: Not applicable

8. If the owner of the subject matter was a related party of the company within the past five years, state the date, price, and relationship with the company at the time of acquisition and disposal: Not applicable

9. Matters related to the disposal of receivables (including types of collateral attached to the disposed receivables; if disposing of receivables from a related party, state the name and book value of the receivables): Not applicable

10. Gain (or loss) from disposal (not applicable for acquisition of securities) (if previously deferred, explain recognition in a table): Approximately NT$272,000

11. Delivery or payment terms (including payment period and amount), contractual restrictions, and other important agreements: One-time full payment

12. Decision-making method for this transaction, reference basis for pricing, and decision-making unit: Executed in accordance with company authorization

13. Net asset value per share of the securities-issuing company acquired or disposed: Not applicable

14. Cumulative holdings (including this transaction) of the securities involved, as of now, in terms of quantity, amount, ownership percentage, and restricted rights (e.g., pledge status): Quantity: Not applicable Amount: RMB 40 million Ownership percentage: Not applicable Restricted rights status: None Cumulative holding amount: RMB 40 million

15. Cumulative securities investments (including this transaction) under Article 3 of the 'Regulations on Acquisition or Disposal of Assets by Publicly Issued Companies' as a percentage of total assets and equity attributable to parent company owners in the company's latest financial statements, and the amount of working capital in the latest financial statements (Note 2): (1) Percentage of total assets: 23.096% (2) Percentage of equity attributable to parent company owners: 45.036% (3) Working capital amount: NT$6,975,964 thousand

16. Broker and brokerage fees: Not applicable

17. Specific purpose or use of acquisition or disposal: Short-term investment

18. Dissenting opinions from directors regarding this transaction: Not applicable

19. Is this transaction a related-party transaction? No

20. Date of supervisor approval or audit committee consent: Not applicable

21. Did the accountant issue a non-reasonable opinion on this transaction? Not applicable

22. Name of accounting firm: Not applicable

23. Name of accountant: Not applicable

24. Accountant's practice certificate number: Not applicable

25. Does this involve a change in business model? No

26. Explanation of business model change: Not applicable

27. Transaction history with the counterparty over the past year and expected in the next year: Not applicable

28. Source of funds: Internal funds

29. Previous date of material information disclosure regarding the same event: Not applicable

30. Other explanatory matters: None