【AUO Crystal Display】Announcement by subsidiary AET Inc. regarding the acquisition of limited partnership interest in EMERGING TECHNOLOGIES SYNERGY FUND I,L.P.

1. Name and nature of the subject matter (for preferred shares, the agreed terms of issuance such as dividend rate should also be specified): Limited partnership interest in EMERGING TECHNOLOGIES SYNERGY FUND I,L.P. 2. Date of occurrence of the event: 2026/04/08 3. Quantity of transaction units, price per unit, and total transaction amount: No transaction quantity, no unit price, total transaction amount is US$65,000. 4. Counterparty of the transaction and its relationship with the company (if the counterparty is a natural person and not a related party of the company, disclosure of their name may be omitted): 1. Counterparty: EMERGING TECHNOLOGIES SYNERGY FUND I,L.P. 2. Relationship with the company: Non-related party. 5. If the counterparty is a related party, the reason for selecting the related party as the transaction object, the previous owner, the relationship between the previous owner and the company and the counterparty, the date of the previous transfer, and the transfer amount should also be announced: Not applicable. 6. If the owner of the transaction subject matter has been a related party of the company within the past five years, the related party's acquisition and disposal dates, prices, and relationship with the company at the time of the transaction should also be announced: Not applicable. 7. Matters related to the disposal of claims (including the type of collateral attached to the claims, and if the disposed claims include claims against related parties, the name of the related party and the book value of the claims against that related party should also be announced): Not applicable. 8. Disposal gain (or loss) (not applicable for acquisition of marketable securities) (for deferred items, a table should be provided to explain the recognition status): Not applicable. 9. Delivery or payment terms (including payment period and amount), contract restriction clauses, and other important agreements: As agreed in relevant agreements. 10. Method of determining this transaction, reference basis for price determination, and decision-making unit: 1. Method of determining this transaction, reference basis for price determination: Handled in accordance with AET IoT Technology Co., Ltd.'s procedures for acquiring or disposing of assets. 2. Decision-making unit: In accordance with the company's approval authority. 11. Net value per share of the marketable securities target company: Not applicable 12. The difference between the reference price of private placement marketable securities and the transaction amount per share reaches 20% or more: Not applicable 13. As of now, the cumulative quantity, amount, shareholding ratio, and restrictions on rights (such as pledge status) of this transaction security (including this transaction): (1) Quantity: Not applicable (2) Amount: US$65,000 (3) Shareholding ratio: Not applicable (4) Restrictions on rights: None 14. As of now, the proportion of private placement marketable securities investment (including this transaction) to the total assets and equity attributable to owners of the parent company in the company's most recent financial report, and the amount of working capital in the most recent financial report: (1) Proportion to total assets in the company's most recent financial report: 0.08% (2) Proportion to equity attributable to owners of the parent company: 0.10% (3) Amount of working capital in the most recent financial report: NT$206,114,000 15. Manager and brokerage fees: Not applicable 16. Specific purpose or use of acquisition or disposal: Long-term investment 17. Opinions of dissenting directors on this transaction: Not applicable 18. This transaction is a related party transaction: No 19. Date of board of directors' approval: Not applicable 20. Date of supervisors' approval or audit committee's consent: Not applicable 21. The accountant issued an unreasonable opinion on this transaction: Not applicable 22. Name of accounting firm: Not applicable 23. Name of accountant: Not applicable 24. Accountant's practice certificate number: Not applicable 25. Other explanatory matters: The exchange rate is calculated at 1 US dollar = 31.7 New Taiwan dollars.