[GUC] Announcement on the Disposal of Zhunan Plant Building and Attached Equipment and Completion of Contract Signing

1. Name and nature of the target object (e.g., land located in Section XX, Sub-section XX, North District, Taichung City): Building located at No. 21, Kebei 1st Road, Science Park, Zhunan Township, Miaoli County (Building No. 00075-000, Section Nanke, Zhunan Township) and its attached equipment. 2. Date of occurrence: 115/6/10 ~ 115/6/10 3. Date of Board of Directors' approval: June 10, 115th year of the Republic of China calendar 4. Other approval dates: Not applicable 5. Transaction unit quantity (e.g., XX square meters, equivalent to XX ping), price per unit, and total transaction amount: Building area: 43,920.92 square meters (13,286.08 ping) and a batch of attached equipment. Total transaction amount: NT$2.8 billion (excluding tax) 6. Transaction counterparty and relationship with the company (if the transaction counterparty is an individual and not a related party of the company, their name may be omitted): (1) Transaction counterparty: Powertech Technology Inc. (2) Relationship with the company: None. 7. If the transaction 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, the company, and the transaction counterparty, the date of the previous transfer, and the amount of the transfer shall also be announced: Not applicable. 8. If the owner of the transaction target has been a related party of the company within the last five years, the date of acquisition and disposal by the related party, the price, and the relationship with the company at the time of the transaction shall also be announced: Not applicable. 9. Estimated disposal gain (or loss) (not applicable for asset acquirers) (deferred items should be listed and explained): Estimated disposal gain of approximately NT$1.824 billion (excluding tax). 10. Delivery or payment terms (including payment period and amount), contract restrictions, and other important agreements: To be handled according to the contract. 11. Method of decision for this transaction (e.g., tender, bidding, or negotiation), reference basis for price determination, and decision-making unit: (1) Method of decision for this transaction: Negotiation. (2) Reference basis for price determination: Reference to actual transaction prices of nearby real estate, market conditions, and appraisal by a real estate appraiser. 12. Name of professional appraisal firm or company and its appraised amount: (1) King Rui Real Estate Appraisers Joint Office, appraised amount: NT$2,564,527,536. (2) Zhan Mao Real Estate Appraisers Joint Office, appraised amount: NT$2,609,360,117. 13. Names of professional appraisers: (1) Wang Fu-Sheng (2) Hsu Chun-Bao 14. Professional appraiser's practicing certificate number: (1) Wang Fu-Sheng: (100) Chung-Shih-Di-Gu-Zi No. 000014 (2) Hsu Chun-Bao: (112) Pei-Shi-Gu-Zi No. 000325 15. Is the appraisal report for a limited price, specific price, or special price? No or not applicable 16. Is the appraisal report not yet obtained? No or not applicable 17. Reason for not yet obtaining the appraisal report: Not applicable 18. If there is a significant difference in the appraisal results, the reason for the difference and the opinion of the accountant: Not applicable. 19. Name of accounting firm: Not applicable. 20. Name of accountant: Not applicable. 21. Accountant's practicing certificate number: Not applicable. 22. Broker and brokerage fee: Global Real Estate Co., Ltd. / According to the contract 23. Specific purpose or use of the acquisition or disposal: Asset revitalization, focus on core processes, creation of shareholder value. 24. Opinions of directors who expressed objections to this transaction: Not applicable. 25. Is this transaction a related party transaction? No 26. Date of supervisor's approval or audit committee's consent: 1. June 10, 115th year of the Republic of China calendar 27. Is this transaction an acquisition of real estate or its right-of-use assets from a related party? No 28. Price evaluated according to Article 16 of the "Rules Governing the Acquisition or Disposal of Assets by Publicly Issued Companies": Not applicable 29. If the price evaluated in the preceding paragraph is lower than the transaction price, the price evaluated according to Article 17 of the same Rules: Not applicable 30. Date of previous major information announcement for the same event: Not applicable 31. Other explanatory matters: None.