Tat Lay Announces Subsidiary Pao Hsin Construction Reached Individual Contract Loss Limit in Derivative Transactions

1. Contract Type: Hybrid equity-linked bond

2. Event Date: 115/7/15

3. Contract Amount: One single contract, totaling USD 1,000 thousand (equivalent to NT$ 31,640 thousand)

4. Margin or Premium Paid: None

5. Individual or Aggregate Loss Limit Set by Internal Procedures: Single derivative contract loss limit reaches 20% of the individual contract amount

6. Purpose of Derivative Transaction: For trading purposes

7. Hedged Item: None

8. Amount of Hedged Position: None

9. Profit and Loss Status of Hedged Item: None

10. Loss Amount Based on Fair Value Assessment (Including Realized and Unrealized): Individual Contract: Cumulative unrealized loss of USD 213 thousand (equivalent to NT$ 6,310 thousand) from one contract

11. Cause of Loss and Impact on Company: Unrealized valuation loss arising from holding the hybrid instrument; this loss has no material impact on company operations

12. Contract Period: From 2026/6/09 to 2026/11/16

13. Restrictive Clauses: None

14. Other Important Agreement Terms: None

15. Additional Disclosures: Announcement by subsidiary Pao Hsin Construction Co., Ltd. that it has reached the individually prescribed loss amount limit in derivative transactions