SiS Announces to Extend the Long-term Chipset Licence Agreement with Intel

Taipei, April 16, 2003 --- Silicon Integrated Systems (SiS), a leading supplier of core logic and graphics chipsets, announced today that they have extended their long term chipset license agreement with Intel Corporation. Following this extension, Silicon Integrated Systems has certain rights to produce chipsets that are compatible with Intel Pentium 4® microprocessors operating at an 800MHz system bus speed when those processors are formally released.

‘Having a long term license to produce chipsets for Intel’s Pentium 4 microprocessor has been an important element of SiS’s business,’said Michael Chen, President and CEO of SiS.‘We are pleased to have this agreement with Intel.’Specific details of the agreement are confidential.

About Silicon Integrated Systems Corp. (SiS)
Silicon Integrated Systems Corp. (SiS) is a worldwide leader in the development, manufacturing and marketing of leading-edge logic products, including core logic, multimedia, connectivity and information appliance. The company was founded in 1987 in the Hsinchu Science-based Industrial Park in Taiwan and has been listed on the Taiwan Stock Exchange (TSE2363) since August 1997. SiS combines professional chip design with advanced semiconductor manufacturing technologies. For more information, please vist www.sis.com