[Encored Energy] Announcement of Share Buyback Period Expiration and Execution Results

1. Maximum total amount for share buyback (TWD): 7,918,880,653 2. Originally planned buyback period: 115/04/08~115/06/07 3. Originally planned buyback quantity (shares): 3,000,000 4. Originally planned price range (TWD): 65.00~145.00 5. Actual buyback period: 115/04/09~115/06/05 6. Quantity of shares repurchased (shares): 2,886,000 7. Total amount repurchased (TWD): 255,081,342 8. Average price per share repurchased (TWD): 88.39 9. Cumulative treasury shares held (shares): 2,886,000 10. Cumulative treasury shares as a percentage of total issued shares (%): 2.02 11. Reason for incomplete execution: To protect shareholder rights and maintain market mechanics, the company adopted a phased buyback strategy based on stock price and volume. 12. Other items: As the planned end date (115/6/7) fell on a holiday, this announcement was made on the final trading day of the period (115/6/5).