[Ta-liang] The company's board of directors resolves to acquire 100% equity of Chih Yen Technology Co., Ltd.

1. Name and nature of the subject matter: Common shares of Chih Yen Technology Co., Ltd. (hereinafter referred to as Chih Yen Company) 2. Date of occurrence: 2026/5/12~2026/5/12 3. Board of directors approval date: May 12, 2026 4. Other approval date: Not applicable 5. Transaction quantity, price per unit, and total transaction amount: Expected to acquire 1,830,000 common shares of Chih Yen Company at a price of approximately NT$112.30 per share, for a total amount of NT$205,500 thousand. 6. Counterparty and its relationship with the company: Natural person shareholders 7. If the counterparty is a related party, reasons for selecting the related party and details of previous transfers: No 8. If the owner of the transaction target within the last five years was a related party of the company: Not applicable 9. Matters related to the disposal of receivables: Not applicable 10. Disposal gain (or loss): Not applicable 11. Delivery or payment terms, contractual restrictions, and other important agreements: Contract not yet signed, subsequent procedures will follow the company's progress. 12. Decision-making process, basis for price determination, and decision-making unit: 1. Commissioned Hsing Ming CPA Firm for an audit of financial information procedures, with a fairness opinion on the transaction price issued by Hsin Yun Cheng CPA Firm. 2. The decision-making units are the company's Audit Committee and Board of Directors. 13. Net value per share of the target company: NT$106.80 14. Cumulative holdings to date: Not applicable 15. Investment status to date: Not applicable 16. Broker and brokerage fees: Not applicable 17. Specific purpose or use of the acquisition or disposal: Chih Yen Company is an important supplier of controller-related modules for our company. The purpose is vertical integration to acquire core technology and intellectual property, and to recruit core technical personnel. 18. Dissenting opinions from directors: No 19. Is this a related-party transaction: No 20. Date of supervisor approval or audit committee consent: May 12, 2026 21. Did the accountant issue a non-fairness opinion: No 22. Name of the accounting firm: Hsin Yun Cheng CPA Firm 23. Name of the accountant: Chang, Ching-Chin 24. Accountant's practicing certificate number: Taipei City CPA Cert. No. 4243 25. Does it involve a change in business model: No 26. Explanation of business model change: None 27. Transactions with the counterparty in the past year and expected in the next year: None 28. Source of funds: Own funds 29. Date of previous material information announcement on the same event: Not applicable 30. Other explanatory matters: None