2614 E-Sun: Donglin Assets Signs NT$700 Million Curtain Wall Construction and Procurement Contract with Lifu Industrial

Release Date: June 18, 2026 Statement Date: June 17, 2026 Statement Time: 13:29:20 Company Code: 2614 Company Name: E-Sun Subject: Supplemental Announcement by Key Subsidiary Donglin Assets Co., Ltd. Regarding the Land Lease and Commissioned Construction Project Contract (Correction of Factual Occurrence Date) Applicable Clause: Clause 20 Factual Occurrence Date: February 24, 2023

1. Type of Contract: Engineering Contract 2. Factual Occurrence Date: February 24, 2023 3. Board Approval Date: Not applicable 4. Other Approval Dates: Approval Level: Approved by Chairman February 24, 2023

5. Counterparty and Relationship with the Company: Counterparty: Lifu Industrial Co., Ltd. Relationship with Company: None

6. Main Contents of the Contract (including total contract amount, estimated investment amount, contract start and end dates, restrictive clauses, and other important terms): Signed with Lifu Industrial Co., Ltd.: - Contract for Curtain Wall Engineering Works for the New Construction of the E-Sun Group Global Operations Headquarters in Linkou (Office Building) - Contract for Procurement of Curtain Wall Materials

1. Curtain Wall Engineering Works (Office Building): NT$56 million 2. Curtain Wall Materials (Office Building): NT$644 million Total Contract Amount: NT$700 million

7. Name of Professional Appraisal Firm or Company and Appraisal Result: Not applicable 8. Name of Real Estate Appraiser: Not applicable 9. License Number of Real Estate Appraiser: Not applicable 10. Specific Purpose of Acquisition: Construction of Group Headquarters 11. Dissenting Director Opinions on This Transaction: None 12. Is This a Related-Party Transaction? No 13. Date of Supervisor Approval or Audit Committee Consent: Not applicable 14. Is the Appraisal Report a Limited, Specific, or Special Price? No or Not applicable 15. Has an Appraisal Report Not Yet Been Obtained? No or Not applicable 16. Reason for Not Yet Obtaining Appraisal Report: Not applicable 17. Reasons for Significant Differences in Appraisal Results and Auditor's Opinion: Not applicable 18. Name of Accounting Firm: Not applicable 19. Name of Auditor: Not applicable 20. Auditor's License Number: Not applicable 21. Previous Date of Major Information Disclosure on the Same Event: June 16, 2026 22. Other Statements: None