[Siliconware Precision Industries Co., Ltd. Contact: Siliconware Precision Industries Co., Ltd. No.45, Jieh Show Rd. Hsinchu Science Park, Hsinchu Taiwan, 30056 www.spil.com.tw Janet Chen, IR Director janet@spil.com.tw +886-3-5795678#3675 Byron Chiang, Spokesperson byronc@spil.com.tw +886-3-5795678#3671 Announcement of the Siliconware Precision’s ( the Company) submission period applicable to the ADR holders of the Company Issued on: Mar 25, 2010 Siliconware Precision Industries Co.,]

[News Release Contact: Siliconware Precision Industries Co., Ltd. Janet Chen, IR Director No.45, Jieh Show Rd. janet@spil.com.tw Hsinchu Science Park, Hsinchu +886-3-5795678#3675 Taiwan, 30056 Byron Chiang, Spokesperson www.spil.com.tw byronc@spil.com.tw +886-3-5795678#3671 SPIL Board of Directors Proposes NT$ 2.58 Cash Dividend Issued on: Mar 25, 2010]