Compal's Subsidiary Announces Investment in Kunqiao Phase III (Shanghai) Technology Industry Private Equity Fund

1. Name and nature of the subject matter (if preferred shares, specify issuance terms such as dividend rate): Kunqiao Phase III (Shanghai) Technology Industry Private Equity Fund Partnership (Kunqiao Phase III (Shanghai) Fund)

2. Date of occurrence: September 11, 115 (2026)

3. Number of transaction units, unit price, and total transaction amount: Total transaction amount: Not exceeding RMB 200,000 thousand

4. Counterparty and its relationship with the company (if the counterparty is an individual and not a related party of the company, name disclosure may be omitted): (Kunqiao Phase III (Shanghai) Fund); Unrelated party

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

6. If the ownership of the subject matter was held by a related party of the company within the past five years, disclose the related party’s acquisition and disposal dates, price, and relationship with the company at the time: Not applicable

7. Matters related to the disposal of receivables (including types of collateral attached to disposed receivables; if receivables from related parties are involved, disclose the names and book amounts of such receivables): Not applicable

8. Gain (or loss) from disposal (not applicable for acquisition of securities; if deferred, provide a table showing recognition): Not applicable

9. Delivery or payment terms (including payment periods and amounts), contractual restrictions, and other important agreements: Delivery or payment terms: As stipulated in the private equity fund agreement. Contractual restrictions and other important agreements: As stipulated in the private equity fund agreement.

10. Decision-making method for this transaction, reference basis for price determination, and decision-making body: Decision-making body: Board of Directors of Compal Information Technology (Kunshan) Co., Ltd.

11. Net asset value per share of the securities-issuing company (if applicable): Not applicable

12. Discrepancy of 20% or more between the private placement reference price and the per-unit transaction price of the securities-issuing company: Not applicable

13. Cumulative number, amount, ownership percentage, and restricted rights (e.g., pledge status) of the securities held (including this transaction) to date: RMB 439,155 thousand; ownership percentage will be determined based on the fund's fundraising results.

14. Proportion of cumulative private equity securities investments (including this transaction) to the company’s total assets and equity attributable to owners of the parent in the latest financial statements, and the amount of working capital in the latest financial statements: 1.80%; 5.18%; Working capital: NT$3,048,110 thousand

15. Manager and brokerage fees: None

16. Specific purpose or use of the acquisition or disposal: Long-term investment

17. Dissenting opinions from directors regarding this transaction: None

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

19. Board approval date: September 11, 115 (2026)

20. Supervisor approval or Audit Committee consent date: September 11, 115 (2026)

21. Whether the accountant issued a non-reasonable opinion on this transaction: No

22. Name of accounting firm: Cheng Pin United Certified Public Accountants

23. Name of accountant: Lai Ming-Yang

24. Accountant’s license number: Taipei City CPA License No. 2123

25. Other disclosures: None