Hsinchu Science Park, Taiwan, April 28th, 2005 - Sunplus Technology Co., Ltd. (TSE: 2401, FTSE: SUPD) today announced its financial results of 1Q'05. The net sales from January to March in 2005 added up to NT$4,164 million, which grew 14.6% comparing with the same period in 2004. The gross margin of 1Q'05 dropped to 25.4% due to product mix change, US dollar depreciation and product ASP decline. The R&D expenses in 1Q'05 were 13.2% of the net sales. The SG&A expenses in 1Q'05 were 5.3% of the sales which declined 42.2% QoQ. The operating profits in 1Q'05 were NT$288million. The net income in 1Q'05 were NT$179million, which earnings per share were NT$ 0.20 based on current 875,254.4 thousand shares.

(in NT$ thousand) 1Q2005 1Q2004 YoY Amount Ratio Amount Ratio Net Sales 4,163,961 100.0% 3,634,990 100.0% +14.6% Gross Margin 1,057,184 25.4% 1,176,715 32.4% -10.2% Operating Income 288,419 6.9% 586,998 16.1% -50.9% Net Income 179,085 4.3% 567,863 15.6% -68.5% EPS(NT$) * Based on 875,254,400 Shares 0.20 0.65

(in NT$ thousand) 1Q2005 4Q2004 QoQ Amount Ratio Amount Ratio Net Sales 4,163,961 100.0% 5,014,302 100.0% -17.0% Gross Margin 1,057,184 25.4% 1,377,933 27.5% -23.3% Operating Income 288,419 6.9% 447,986 8.9% -35.6% Net Income 179,085 4.3% 344,125 6.9% -48.0% EPS(NT$) * Based on 875,254,400 Shares 0.20 0.39

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