news release News Release 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

Monthly Sales Report--- April 2015

Issued by: Siliconware Precision Industries Co., Ltd. Issued on: May 5, 2015
Taichung, Taiwan, May 5, 2015─Siliconware Precision Industries Co., Ltd. ("SPIL" or "the Company")(Taiwan Stock Exchange: 2325, NASDAQ: SPIL) today announced sales revenue for Apr 2015: on a consolidated basis, sales revenue was NT$ 6,955 million, representing 6.6% sequential decline over March 2015. On a year-over-year basis, sales revenue for April 2014 increased 1.9%.

Sales Report (NT$ million)

Period

Apr

2015

Mar

2015

Sequential

Change

Apr

2014

YOY

Change

Consolidated

Revenue*

6,955

7,443

-6.6%

6,823

1.9%

*Consolidated revenue includes revenue from SPIL, and subsidiaries.

1

distributed by