Yisheng Announces Completion of the 15th Treasury Stock Repurchase Period with No Execution

1. Original upper limit of total repurchase amount (NT$): 152,940,057 2. Original repurchase period: 115/04/27 ~ 115/06/15 3. Original number of shares intended for repurchase (shares): 10,000,000 4. Original repurchase price range (NT$): 9.80 ~ 12.00 5. Actual repurchase period: None 6. Number of shares actually repurchased (shares): 0 7. Total amount spent on repurchase (NT$): 0 8. Average repurchase price per share (NT$): 0.00 9. Cumulative number of own shares held (shares): 0 10. Ratio of cumulative own shares held to total issued shares (%): 0.00 11. Reason for incomplete execution: During the repurchase period, the market price of the company's stock continuously exceeded the预定 repurchase price range, resulting in the failure to complete the treasury stock repurchase program. 12. Other matters to be disclosed: None.