2371 Tatung: Subsidiary Ting New Energy Acquires Solar Power Equipment from Related Party

Announcement Date: July 14, 2026 Statement Date: July 13, 2026 Statement Time: 16:43:40 Company Code: 2371 Company Name: Tatung

Subject: Announcement by subsidiary Ting New Energy Co., Ltd. of board resolution to acquire solar power generation equipment from a related party. Applicable Clause: Item 20 Event Date: July 13, 2026

Details:

1. Name and nature of the subject matter (e.g., land located in Section XX, Subsection XX, North District, Taichung City): Solar power generation equipment and associated engineering

2. Event Date: August 27, 2024 – July 13, 2026

3. Board approval date: Not applicable

4. Other approval dates: Approval level: Chairman of Ting New Energy Co., Ltd. July 13, 2026

5. Quantity of units (e.g., XX square meters, equivalent to XX ping), unit price, and total transaction amount: Transaction quantity: 16 batches in total Unit price: NT$302,059,000 (excluding tax) Total transaction amount: NT$302,059,000 (excluding tax)

6. Counterparty and its relationship with the company (if the counterparty is an individual and not a related party of the company, name disclosure may be omitted): Counterparty: Tatung Smart Energy Co., Ltd. Relationship with the company: Parent company of Ting New Energy Co., Ltd.

7. If the counterparty is a related party, disclose the reason for selecting the related party as the transaction party, the previous transferor, the relationship among the previous transferor, the company, and the counterparty, the previous transfer date, and the transfer amount: Reason for selecting a related party as the transaction party: To provide diversified development for the group’s long-term business and due to the party’s experience in solar engineering.

Previous transferor, relationship among the company and the counterparty, transfer date, and transfer amount: Not applicable

8. If the subject asset had an owner who was a related party of the company within the past five years, disclose the acquisition and disposal date, price, and relationship with the company at the time of transaction: Not applicable

9. Expected gain (or loss) from disposal (not applicable for asset acquisition) (if deferred, provide a table showing recognition status): Not applicable

10. Delivery or payment terms (including payment periods and amounts), contractual restrictions, and other important agreements: As stipulated in the contract

11. Decision method for this transaction (e.g., bidding, price comparison, negotiation), reference basis for price determination, and decision-making unit: Transaction decision method: Negotiation Reference basis: Market price Decision-making unit: Chairman of Ting New Energy Co., Ltd.

12. Name of professional appraiser firm or company and appraisal amount: Not applicable

13. Name of professional appraiser: Not applicable

14. Professional appraiser license number: Not applicable

15. Whether the appraisal report is for a limited price, specific price, or special price: No or Not applicable

16. Whether an appraisal report has not yet been obtained: No or Not applicable

17. Reason for not yet obtaining the appraisal report: Not applicable

18. If there is a significant difference in appraisal results, explain the reason and provide auditor’s opinion: Not applicable

19. Name of accounting firm: Not applicable

20. Name of accountant: Not applicable

21. Accountant license number: Not applicable

22. Broker and brokerage fees: Not applicable

23. Specific purpose or use of the acquisition or disposal: For the company’s operational development

24. Opinion of any director who objected to this transaction: Not applicable

25. This transaction is a related-party transaction: Yes

26. Date of supervisor approval or audit committee consent: Not applicable

27. This transaction involves acquiring real estate or its right-of-use assets from a related party: No

28. Valuation amount under Article 16 of the “Asset Acquisition and Disposal Handling Standards for Publicly Issued Companies”: Not applicable

29. Valuation amount under Article 17 of the same standards, if the valuation under the previous item is lower than the transaction price: Not applicable

30. Previous date of material information disclosure regarding the same event: Not applicable

31. Other explanatory matters: From August 27, 2024, to July 13, 2026, the cumulative amount of equipment acquired totaled NT$302,058,787 (excluding tax).