[Kosin] Announcement of Share Repurchase Cumulatively Reaching 2% of Issued Shares

1. Date when the cumulative number of repurchased shares reached 2% of the company's total issued shares or the amount exceeded NT$300 million: September 11, 115 2. Number of shares repurchased this time (shares): 1,099,000 3. Total amount spent on repurchase this time (NT$): 223,874,045 4. Average repurchase price per share (NT$): 203.71 5. Cumulative number of own shares held during the repurchase period (shares): 21,587,000 6. Ratio of cumulative own shares held to total issued shares (%): 4.01 7. Other matters to be disclosed: None