Chang Hsing Announces Board Resolution to Expand Production Lines at Phase II of Lukang Plant in Kaohsiung City

1. Name and nature of the subject matter (e.g., land located in Section XX, Subsection XX, North District, Taichung City): Production lines and storage tanks

2. Date on which the fact occurred: 115/8/7 ~ 115/8/7

3. Date of board approval: August 7, 2026 (Minguo Year 115)

4. Other approval dates: Not applicable

5. Quantity of transaction units (e.g., XX square meters, equivalent to XX ping), unit price, and total transaction amount: Transaction quantity: Four production lines and four storage tanks Transaction amount: NT$444.7 million

6. Counterparty and their relationship with the company (if the counterparty is an individual and not a related party of the company, name disclosure may be omitted): Not applicable

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

8. If the asset owner was 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) (for deferred gains, provide a table showing recognition schedule): Not applicable

10. Delivery or payment terms (including payment periods and amounts), contractual restrictions, and other important agreements: Delivery or payment terms: As stipulated in the contract

11. Method of determining this transaction (e.g., bidding, price comparison, negotiation), basis for price determination, and decision-making body: (1) Transaction determination method: Negotiation (2) Basis for price determination: Market conditions (3) Decision-making body: Board of Directors

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

13. Name of professional appraiser: Not applicable

14. Professional appraiser license number: Not applicable

15. Whether the appraisal report contains limited, specific, or special pricing: No or not applicable

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

17. Reason for not obtaining appraisal report: Not applicable

18. Reasons for significant differences in appraisal results and accountant opinion: Not applicable

19. Accounting firm name: Not applicable

20. Accountant name: Not applicable

21. Accountant license number: Not applicable

22. Broker and brokerage fees: Not applicable

23. Specific purpose or use of acquisition or disposal: Production line expansion

24. Opinions of directors who objected to this transaction: None

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

26. Date of supervisor approval or audit committee consent: August 6, 2026 (Minguo Year 115)

27. Whether this transaction involves acquiring real estate or right-of-use assets from a related party: No

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

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

30. Previous date of major information announcement regarding the same event: Not applicable

31. Other disclosures: None