Tatung Development Announces Cash Capital Increase for Subsidiary Zhisheng Real Estate

1. Name and nature of the subject matter (if preferred shares, specify issuance terms such as dividend rate): Name: Zhisheng Real Estate Co., Ltd. Nature: Common shares

2. Date of occurrence: June 23, 2026 ~ June 23, 2026

3. Board approval date: June 23, 2026 (Minguo Year 115)

4. Other approval dates: Not applicable

5. Number of units, unit price, and total transaction amount: Number of units: 8,400,000 shares Unit price: NT$10 Total transaction amount: NT$84,000 thousand

6. Counterparty and relationship with the company (if the counterparty is an individual and not a related party, name disclosure may be omitted): Tatung Development Co., Ltd. and Zhisheng Real Estate Co., Ltd. Both are subsidiaries of Tatung Co., Ltd.

7. If the counterparty is a related party, state the reason for selecting them, previous transferor, relationship among previous transferor, company, and counterparty, transfer date, and amount: Long-term investment

8. If the owner of the subject securities has been a related party of the company within the past five years, disclose the date, price, and relationship at the time of acquisition and disposal: Not applicable

9. Matters related to the disposal of receivables (including types of collateral attached to disposed receivables; if receivables from related parties are involved, disclose the name and book value of such receivables): Not applicable

10. Gain (or loss) from disposal (not applicable for acquisition of securities) (if previously deferred, explain recognition status in table form): Not applicable

11. Delivery or payment terms (including payment period and amount), contractual restrictions, and other important agreements: Cash capital injection; no contractual restrictions or other important agreements

12. Decision-making method for this transaction, reference basis for pricing, and decision-making body: Approved by the board of directors of Tatung Development Co., Ltd.

13. Net asset value per share of the securities-issuing company: NT$10.42

14. Cumulative number, amount, ownership percentage, and restricted status (e.g., pledge) of the securities held to date (including this transaction): Number held: 66,204,691 shares Amount held: NT$662,046,910 Ownership percentage: 100% Restricted status: None

15. Proportion of securities investments (including this transaction) under Article 3 of the "Regulations on the Acquisition or Disposition of Assets by Publicly Issued Companies" to the company's total assets and equity attributable to owners of the parent in the latest financial statements, and the amount of working capital in the latest financial statements: Proportion to total assets: 1.15% Proportion to equity attributable to owners of the parent: 2.54% Working capital in latest financial statements: NT$8,690,161 thousand

16. Broker and brokerage fees: Not applicable

17. Specific purpose or use of the acquisition or disposal of securities: Long-term investment

18. Dissenting director opinions on this transaction: Not applicable

19. Is this transaction a related-party transaction: Yes

20. Date of auditor approval or audit committee consent: June 23, 2026 (Minguo Year 115)

21. Did the accountant issue a non-reasonableness 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. Does this involve a change in business model: No

26. Explanation of business model change: Not applicable

27. Transaction status with the counterparty in the past year and expected in the next year: Not applicable

28. Source of funds: Internal funds

29. Previous date of material information disclosure on the same event: Not applicable

30. Other explanatory matters: None