Hsinchu Science Park, Taiwan, July 28th, 2006 - Sunplus Technology Co., Ltd. (TAIEX: 2401, LSE: SUPD) today announced its financial results of 1st half in 2006. The net sales of 1H'06 summed up NT$9,440million, which grew 9.6% comparing with 1H'05. The gross margin in 1H'06 was improved to 32.7% since gross margin in 1H'05 was 28.4%. The net profits in 1H'06 were NT$1,844million which grew 198% comparing with the same period last year. The earnings per share in 1H'06 were NT$1.94 based on the outstanding 951,550,369 shares on June 30,2006.

(in NT$ thousand) 1H'06 1H'05 YoY Net Sales 9,440,025 100.0% 8,612,619 100.0% +9.6% Gross Margin 3,089,958 32.7% 2,448,044 28.4% +26.2% Operating Income 1,263,358 13.4% 798,736 9.3% +58.2% Net Income 1,843,845 19.6% 618,761 7.2% +198.0% EPS (NT$) * *Based on outstanding 951,550,369 shares on 2006/6/30 1.94 0.65

(in NT$ thousand) 2Q'06 1Q'06 QoQ Net Sales 4,425,025 100.0% 5,015,000 100.0% -11.8% Gross Margin 1,514,016 34.2% 1,575,942 31.4% -3.9% Operating Income 670,903 15.2% 592,455 11.8% 13.2% Net Income 809,738 18.3% 1,034,107 20.6% -21.7% EPS (NT$) * *Based on outstanding 951,550,369 shares on 2006/6/30 0.85 1.09

(in NT$ thousand) 2Q'06 2Q'05 QoQ Net Sales 4,425,025 100.0% 4,448,658 100.0% -0.5% Gross Margin 1,514,016 34.2% 1,390,860 31.3% 8.9% Operating Income 670,903 15.2% 510,317 11.5% 31.5% Net Income 809,738 18.3% 439,676 9.9% 84.2% EPS (NT$) * *Based on outstanding 951,550,369 shares on 2006/6/30 0.85 0.46