Zhan Da Announces Board Approval to Acquire Right-of-Use Asset from Related Party

1. Name and nature of the subject property (e.g., land located at Section XX, Subsection XX, North District, Taichung City): Building located at No. 69, Section 2, Guangfu Road, Sanchong District, New Taipei City

2. Date of occurrence: August 3, 2026 ~ August 3, 2026

3. Board approval date: August 3, 2026

4. Other approval dates: Not applicable

5. Quantity of units (e.g., XX square meters, equivalent to XX ping), unit price, and total transaction amount: Leased area: Includes office, warehouse, and parking spaces, totaling 590.04 ping Monthly rent: NT$579,190 (inclusive of tax) Right-of-use asset value: NT$19,317,186

6. Counterparty and its relationship with the company (if the counterparty is an individual and not a related party, name disclosure may be omitted): Counterparty: Chiun Chieh Electronics Co., Ltd. Relationship with the company: Parent company of the company

7. If the counterparty is a related party, state the reason for selecting the related party as the transaction party, the previous transferor, the relationship between the previous transferor and the company and the counterparty, the previous transfer date, and the transfer amount: Reason for selecting related party: The company has long leased the subject property and has experienced favorable usage conditions; therefore, it has chosen to continue leasing from its parent company, Chiun Chieh Electronics. Previous transferor: Not applicable Relationship with previous transferor: Not applicable Previous transfer date: Not applicable Previous transfer amount: Not applicable

8. If the ownership of the transaction subject was held by a related party of the company within the past five years, disclose the date of acquisition and disposal, price, and relationship with the company at the time: Not applicable

9. Estimated gain (or loss) on disposal (not applicable for asset acquisition) (if deferred, provide a table showing recognition): Not applicable

10. Delivery or payment terms (including payment period and amount), contractual restrictions, and other important agreements: Payment terms: Monthly payment, monthly rent NT$579,190 (inclusive of tax) Lease term: October 1, 2026 to September 30, 2029 Contractual restrictions and other important agreements: None

11. Decision method for this transaction (e.g., bidding, price comparison, negotiation), reference basis for price determination, and decision-making unit: Decision method: Negotiation between both leasing parties Reference basis for price determination: Reference to surrounding market rental rates Decision-making unit: Board of Directors

12. Name of professional appraisal firm or company and appraisal amount: Not applicable

13. Name of professional appraiser: Not applicable

14. Professional appraiser's license number: Not applicable

15. Whether the appraisal report is for a limited price, specific price, or special price: No or not applicable

16. Whether the appraisal report has not yet been obtained: No or not applicable

17. Reason for not yet obtaining the appraisal report: Not applicable

18. If there is a significant difference in the appraisal results, state the reason and the accountant's opinion: Not applicable

19. Name of accounting firm: Not applicable

20. Name of accountant: Not applicable

21. Accountant's license number: Not applicable

22. Broker and brokerage fee: Not applicable

23. Specific purpose or use of the acquisition or disposal: For operational needs

24. Opinion of any director who objected to this transaction: None

25. This transaction is a related-party transaction: Yes

26. Date of auditor's approval or audit committee's consent: August 3, 2026

27. This transaction involves acquiring real estate or its right-of-use asset from a related party: Yes

28. Valuation price under Article 16 of the 'Asset Acquisition and Disposal Rules for Publicly Issued Companies': Not applicable

29. Valuation price under Article 17 of the same rules, if the valuation under the previous item is lower than the transaction price: Not applicable

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

31. Other explanatory matters: None