Acer Resolves to Dispose of Shares in Energy Storage Project

1. Name and nature of the subject matter (if preferred shares, specify issuance conditions such as dividend rate):
Ordinary shares of Hoju Electric Co., Ltd.

2. Date of occurrence: 115/6/22 ~ 115/6/22

3. Board approval date: June 22, 2026 (Minguo Year 115)

4. Other approval dates: Not applicable

5. Transaction quantity, unit price, and total transaction amount:
Number of units: 98,000,000 shares of Hoju Electric Co., Ltd.
Total transaction amount: Approximately NT$1.19 billion

6. Counterparty and its relationship with the company (if the counterparty is an individual and not a related party, name disclosure may be omitted):
Chungyu Electric Co., Ltd.; the counterparty is not a related party of the company

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 the transfer amount:
Not applicable

8. If the owner of the transaction subject was 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 of transaction:
Not applicable

9. Matters related to the disposal of receivables (including types of collateral attached to disposed receivables; if receivables from related parties are disposed, disclose the name of the related party and the book value of the receivables disposed):
Not applicable

10. Gain (or loss) from disposal (not applicable if acquiring securities) (if previously deferred, list and explain recognition status):
Gain from disposal: Approximately NT$210 million

11. Delivery or payment terms (including payment period and amount), contractual restrictions, and other important agreements:
Delivery or payment terms: Full cash payment as per contract agreement
Contractual restrictions and other important agreements: Confidentiality clauses, shareholder equity transfer agreements, etc.

12. Decision-making method for this transaction, basis for price determination, and decision-making body:
(1) Decision-making method: Approved and authorized by the company’s Investment Review Committee, Audit Committee, and Board of Directors
(2) Basis for price determination: Reasonableness opinion letter from certified public accountant
(3) Decision-making body: The company’s Board of Directors

13. Net asset value per share of the securities-issuing company:
NT$9.98

14. Cumulative number, amount, ownership percentage, and rights restrictions (e.g., pledge status) of the securities held (including this transaction) to date:
Cumulative holdings: 70,000,000 shares, cumulative investment amount: NT$700,000,000, ownership ratio: 25%

15. Ratio of securities investments (including this transaction) listed under Article 3 of the 'Regulations on the Acquisition or Disposition of Assets by Publicly Issued Companies' to 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 (Note 2):
Ratio to total assets: 66.99%
Ratio to shareholders’ equity: 144.23%
Working capital amount in latest financial statements: NT$(14,590,872) thousand

16. Broker and brokerage fees:
None

17. Specific purpose or use of acquiring or disposing of securities:
Optimization of long-term securities investment portfolio

18. Dissenting opinions from directors regarding this transaction:
None

19. Is this transaction a related-party transaction?: No

20. Date of auditor’s approval or audit committee’s consent:
June 22, 2026 (Minguo Year 115)

21. Did the accountant issue a non-reasonable opinion for this transaction?: No

22. Name of accounting firm:
Chung-Shan United Certified Public Accountants

23. Name of accountant:
Certified Public Accountant Wang Ming-Sheng

24. Accountant’s license number:
Membership Certificate No.: Taipei CPA Certificate No. 3235

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

26. Explanation of business model change:
Not applicable

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

28. Source of funds:
Not applicable

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

30. Other explanatory matters:
None