ASRock Rack Announces Completion of First Treasury Stock Repurchase Period

1. Original total amount for buyback (NT$): 3,497,802,175. 2. Original period for buyback: 115/03/18~115/05/17. 3. Original number of shares for buyback: 1,500,000. 4. Original price range for buyback (NT$): 180.00~268.00. 5. Actual period for buyback: 115/04/01~115/04/02. 6. Number of shares repurchased: 48,000. 7. Total amount for repurchased shares (NT$): 12,685,608. 8. Average price per share (NT$): 264.28. 9. Cumulative shares held by the company: 48,000. 10. Percentage of cumulative shares held (%): 0.07. 11. Reasons for non-completion: To balance market mechanism, avoid affecting stock price, and maintain shareholder equity, the company bought back in batches based on price and volume. Since the market price was often higher than the original target range, the repurchase was not completed. 12. Other notes: The scheduled period was 115/03/18 to 115/05/17, but due to 115/05/17 not being a business day, it was announced early on 115/05/15.