Hsinchu Science Park, Taiwan, October 28th, 2005 - Sunplus Technology Co., Ltd. (TSE: 2401, FTSE: SUPD) today announces its financial results of 3rd Quarter in 2005.

The sales of 3Q05 summed up NT$4,929million, which grew 10.8% comparing with 2Q'05. The gross margin in 3Q'05 was improved to 35.4% since gross margin in 2Q'05 was 31.3%. The R&D expenses in 3Q'05 were 13.6%. The net profits in 3Q'05 were NT$928million, which grew 111.1% comparing with 2Q'05. The earnings per share in 3Q'05 were NT$0.99 based on weighted average shares outstanding which are 937,914,889 shares.

The net sales from January 1st to September 30 added up to NT$13,541million, and gross margin were 31.0%, R&D expenses were 13.6% of the totaled net sales. The net profits from January 1st to September 30 in 2005 were NT$1,547million, which earnings per share were NT$1.65 based on weighted average shares outstanding which are 937,914,889 shares.

(in NT$ thousand) 3Q 2005 2Q 2005 QoQ Net Sales 4,928,759 100.0% 4,448,658 100.0% +10.8% Gross Margin 1,746,231 35.4% 1,390,860 31.3% +25.6% Operating Income 820,592 16.7% 510,317 11.5% +60.8% Net Income 928,233 18.8% 439,676 9.9% +111.1% EPS (NT$)* Based on weighted average shares outstanding, which are 937,914,889 shares. 0.99 0.47

(in NT$ thousand) 3Q 2005 3Q 2004 YoY Net Sales 4,928,759 100.0% 5,452,778 100.0% -9.6% Gross Margin 1,746,231 35.4% 1,880,965 34.5% -7.2% Operating Income 820,592 16.7% 1,027,189 18.9% -20.1% Net Income 928,233 18.8% 1,032,419 19.0% -10.1% EPS (NT$)* Based on weighted average shares outstanding, which are 937,914,889 shares. 0.99 1.10

(in NT$ thousand) Jan.~ Sep. 2005 Jan. ~ Sep. 2004 YoY Net Sales 13,541,378 100.0% 13,925,754 100.0% -2.8% Gross Margin 4,194,275 31.0% 4,565,273 32.8% -8.1% Operating Income 1,619,328 12.0% 2,478,542 17.8% -34.7% Net Income 1,546,994 11.4% 2,393,566 17.2% -35.4% EPS (NT$)* Based on weighted average shares outstanding, which are 937,914,889 shares. 1.65 2.55

About Sunplus

Sunplus Technology Co., Ltd. (TWSE: 2401, LSE: SUPD), established in 1990, is a leading chip provider for multimedia and automotive applications such as DVD player, portable DVD player, home entertainment audio products, car infotainment and advanced driving assistance system(ADAS). Meanwhile Sunplus is offering high-speed I/O IP, high performance data conversion IP, and analog IP for a broad range of applications on consumer, portable, and connected devices for Sunplus has been accumulating strong IP technologies on consumer and multimedia segments. Sunplus is headquartered in Taiwan and has service offices in Shanghai, Shenzhen and Chengdu. For more information, please visit Sunplus website at www.sunplus.com.

Sunplus Contact

Spokesperson

Wayne Shen
Vice President
+886-3-5786005#2350
wayne@sunplus.com

Deputy Spokesperson

Joseph Chuang
Administration Div. Director
+886-3-5786005#3120
pr@sunplus.com