Supplementary Announcement on Construction Contract by Subsidiary of Eastar (2614)

Announcement Date: June 18, 2025 Statement Date: June 17, 2025 Company Code: 2614 Company Name: Eastar Subject: Supplementary announcement on construction contracts for Donglin Assets Co., Ltd. (Correction of date) Clause: No. 20 Date of Event: May 23, 2025 Contract Type: Construction Procurement Contract Counterparty: Lifu Industrial Co., Ltd. Main Contract Content: For the Eastar Group Global Headquarters construction: 1. Curtain wall construction (Bldg B): 50.24 million NTD 2. Curtain wall materials (Bldg B): 577.76 million NTD Total Contract Value: 628 million NTD Purpose of Transaction: Construction of the group headquarters.