Powerchip Announces Share Buyback Exceeding NT$300 Million

1. Date when cumulative number of shares bought back reached 2% of issued shares or amount reached NT$300 million: 115/09/15 2. Number of shares bought back in this round (shares): 1,372,000 3. Total amount spent on this buyback (NTD): 373,707,281 4. Average price per share bought back (NTD): 272.38 5. Cumulative number of own shares held during buyback period (shares): 7,952,000 6. Ratio of cumulative own shares held to total issued shares (%): 1.05 7. Other matters to be disclosed: None.