8499 Dingxuan-KY Announces Acquisition of Wealth Management Product

Announcement Date: July 4, 2026 Statement Date: July 3, 2026 Statement Time: 15:37:16 Company Code: 8499 Company Name: Dingxuan-KY Subject: Announcement on behalf of Longyang Electric (Kunshan) Co., Ltd. regarding the acquisition of a financial product Applicable Clause: Clause 20 Factual Date: July 3, 2026

1. Name and nature of the subject matter (for preferred shares, specify issuance terms such as dividend rate): CITIC Construction Investment Income Certificate 'Rising Treasure' Series 1196

2. Factual Date: July 3, 2026 ~ July 3, 2026

3. Board Approval Date: Not applicable

4. Other Approval Dates: Approval Level: Executed in accordance with company authorization July 3, 2026 (Minguo Year 115)

5. Transaction quantity, unit price, and total amount: CITIC Construction Investment 'Rising Treasure' Series 1196 (183-day term): RMB 20 million

6. Counterparty and its relationship with the company (if the counterparty is a natural person and not a related party, name disclosure may be omitted): Counterparty: CITIC Construction Investment Securities Co., Ltd.; Relationship with company: None

7. If the counterparty is a related party, disclose 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 amount: Not applicable

8. If the owner of the subject matter was a related party of the company within the past five years, disclose 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 disposed receivables; if receivables from related parties are involved, disclose the name and book value of the receivable): Not applicable

10. Gain (or loss) from disposal (not applicable for acquisition of securities) (if previously deferred, provide a table explaining recognition): Not applicable

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

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

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

14. Cumulative holdings (including this transaction) of the securities involved, as of now, including quantity, amount, ownership percentage, and any restrictions on rights (e.g., pledge status): Quantity: Not applicable Amount: RMB 20 million Ownership Percentage: Not applicable Rights Restriction Status: None Cumulative Holding Amount: RMB 20 million

15. Cumulative securities investments (including this transaction) under Article 3 of the 'Regulations on the Acquisition or Disposal of Assets by Publicly Issued Companies' as a percentage of total assets and equity attributable to owners of the parent in the company's latest financial statements, and the amount of working capital in the latest financial statements: (1) Percentage of total assets: 24.012% (2) Percentage of equity attributable to owners of the parent: 46.822% (3) Working capital amount: NT$6,975,964 thousand

16. Broker and brokerage fees: Not applicable

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

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

19. Whether this transaction is a related-party transaction: No

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

21. Whether the accountant issued a non-reasonableness opinion on this transaction: Not applicable

22. Name of the accounting firm: Not applicable

23. Name of the accountant: Not applicable

24. Accountant's practice certificate number: Not applicable

25. Whether this involves a change in business model: No

26. Explanation of business model change: Not applicable

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

28. Source of funds: Internal funds

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

30. Other explanatory matters: None