[Taiwan Cogeneration Corporation] The company's board of directors resolved to acquire 100% equity of Xingbao Electric Power Co., Ltd. for group organizational restructuring

1. Name and nature of the target (if preferred shares, the agreed terms and conditions of issue, such as dividend rate, should also be indicated): Xingbao Electric Power Co., Ltd. (hereinafter referred to as Xingbao Company) ordinary shares 2. Date of occurrence of the event: 2026/5/12~2026/5/12 3. Date of board of directors' approval: May 12, 2026 4. Other approval dates: Not applicable 5. Quantity, price per unit, and total transaction amount: (1) Transaction quantity: 51,787,000 shares (2) Price per unit: Approximately NT$10.54 per share (3) Total transaction amount: NT$545,704,000 6. Counterparty and its relationship with the company (if the counterparty is a natural person and not a related party of the company, the name may be omitted): (1) Counterparty: Xingneng Co., Ltd. (hereinafter referred to as Xingneng Company) (2) Its relationship with the company: A wholly-owned subsidiary directly held by the company 7. 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 previous transfer date and transfer amount should be announced: This case is an internal group organizational restructuring, so it is not applicable. 8. If the ownership of the transaction target has been a related party of the company within the last five years, the acquisition and disposal dates, prices, and relationships with the company at the time of the transaction of the related party should also be announced: This case is an internal group organizational restructuring, so it is not applicable. 9. Matters related to the disposal of claims (including the type of collateral attached to the disposed claims, if the disposed claims belong to claims against related parties, the name of the related party and the book value of the claims against the related party in this disposal should also be announced): Not applicable 10. Disposal gains (or losses) (not applicable for acquisition of securities) (if deferred, the recognition status should be listed and explained): Not applicable 11. Delivery or payment terms (including payment period and amount), contractual restrictions, and other important agreed matters: This transaction uses cash as consideration and will be paid in full on the share delivery date. 12. Method of determining this transaction, reference basis for price determination, and decision-making unit: Based on the net worth shown in the financial statements of Xingbao Company as reviewed by the accountant on March 31, 2026, approved by the board of directors. 13. Net worth per share of the acquired or disposed securities target company: NT$10.54 14. As of now, the cumulative number, amount, shareholding ratio, and restricted rights (such as pledging status) of these transaction securities (including this transaction): Quantity 51,787,000 shares, amount NT$545,704,000, shareholding ratio 100%, no restricted rights. 15. As of now, the proportion of investment in securities listed in Article 3 of the "Regulations Governing the Acquisition or Disposal of Assets by Public Companies" (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 (Note 2): Proportion of total assets 91.34%, proportion of equity 162.33%, working capital: (452,411) thousand NT dollars. The main purpose of this case is to simplify the investment structure and enhance the operational management efficiency of the group. The funding will be provided by own capital and bank loans. 16. Broker and brokerage fees: None 17. Specific purpose or use of acquisition or disposal: To align with the company's investment structure adjustment. 18. Opinions of dissenting directors in this transaction: None 19. This transaction is a related party transaction: Yes 20. Date of approval by supervisors or audit committee: May 12, 2026 21. Accountant issued an unqualified opinion on this transaction: No 22. Accounting firm name: Yanshin United CPA Firm 23. Accountant name: Wu Hongyi 24. Accountant's license number: Quanhuihe No. 1070015 25. Does it involve changes in business model: No 26. Description of changes in business model: Not applicable 27. Transaction status with the counterparty in the past year and estimated next year: Not applicable 28. Source of funds: Own capital and bank loans 29. Date of previous significant information disclosure on the same event: Not applicable 30. Other matters to be specified: None