Hsinchu Science Park, Taiwan, R.O.C. July 7th, 2004 - Sunplus Technology Co., Ltd. ("Sunplus" or "the company") (TAIEX: 2401, LSE: SUPD) today announced that monthly sales for June 2004 were NT$ 1,713 million reaching a new historical record high and grew 101.02% comparing with June 2003. The revenue from January to June 2004 totaled NT$ 8,473 million and grew 100.02% comparing with same period last year. Going forward to high season, the sales should grow continuously due to seasonality.

Sales Report of June 2004 (Unit: NT$ K)

Item 2004* 2003 Growth rate (%) June Revenue 1,713,133 852,229 101.02% Year to date Revenue 8,472,977 4,236,063 100.02%

* figures have not been audited

Sales Breakdown of June 2004 (Unit: NT$ K)

Product categories Net sales LCD ICs 308,583 Micro Controllers 503,862 Multi Media ICs 772,903 Others 127,785 Total 1,713,133