[Chicony] Announcement of Board Approval for Cash Capital Increase in Subsidiary Youkang Electronics Co., Ltd.

1. Name and nature of the subject matter (if preferred shares, specify terms such as dividend rate): Youkang Electronics Co., Ltd.

2. Effective date(s): 115/8/5 ~ 115/8/5

3. Date of board approval: August 5, 2026 (ROC Year 115)

4. Other approval dates: Not applicable

5. Transaction quantity, unit price, and total transaction amount: Transaction quantity (shares): 210,000,000 Average unit price (NT$): 10 Total transaction amount (NT$): 2,100,000,000

6. Counterparty and relationship with the company (if individual and not a related party, name disclosure exempted): Youkang Electronics Co., Ltd. is a 100% wholly-owned subsidiary of our company.

7. If counterparty is a related party, state reason for selection, previous owner, relationships among parties, transfer date, and amount: Not applicable

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

9. Matters regarding disposal of receivables (including types of attached collateral; if receivable from a related party, disclose name and book value): Not applicable

10. Gain (or loss) from disposal (not applicable for acquisition of securities; deferred gains must be explained in table form): Not applicable

11. Delivery or payment terms (including payment schedule and amounts), contractual restrictions, and other important agreements: Cash payment, no restrictions

12. Decision-making method for this transaction, reference basis for pricing, and decision-making body: Approved by board resolution dated August 5, 2026 (ROC Year 115)

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

14. Cumulative holdings (including this transaction) to date: quantity, amount, ownership percentage, and rights restrictions (e.g., pledge status): Cumulative holding quantity: 90,000,000 shares Cumulative holding amount: NT$900,000,000 Cumulative ownership ratio: 100%

15. Proportion of securities investments listed under Article 3 of the 'Asset Acquisition and Disposition Rules for Publicly Issued Companies' (including this transaction) relative to total assets and equity attributable to parent owners in the latest financial statements, and operating capital amount in the latest financial statements (Note 2): Percentage of total assets: 79.82% Percentage of shareholders’ equity: 147.71% Operating capital: -NT$22,983,608 thousand

16. Broker and brokerage fees: Not applicable

17. Specific purpose or use of acquiring or disposing of securities: To strengthen the subsidiary’s working capital and improve future investment and financial flexibility

18. Dissenting opinions from directors regarding this transaction: None

19. Is this a related-party transaction? Yes

20. Date of supervisor acknowledgment or audit committee approval: August 5, 2026 (ROC Year 115)

21. Did the accountant issue a non-reasonableness opinion? Not applicable

22. Name of accounting firm: Not applicable

23. Accountant’s name: Not applicable

24. Accountant’s license number: Not applicable

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

26. Explanation of business model change:

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

28. Source of funds: Internal funds

29. Previous material information announcement date for the same event: Not applicable

30. Other explanatory matters: The operating capital in the latest financial statements is NT$-22,983,608 thousand; consolidated operating capital is NT$21,585,082 thousand. This transaction is conducted through centralized group fund management and poses no risk of funding shortage.