in the semiconductor, computer, telecommunication, and optoelectronics industries, have been established in the park since the end of December 2003. Its 400 technology companies accounted for 10% of Taiwan's gross domestic product in 2007. It is home to the world's top two semiconductor foundries, Taiwan Semiconductor Manufacturing Company (TSMC) and United Microelectronics Corporation (UMC), both of which were established at the nearby Industrial Technology Research Institute. Taiwan is the only country that possesses a professional division-of-labor system in the semiconductor industry and also has the highest density of 12-inch wafer-producing fabs, most of which are based in the park. Next door to the science park are two of Taiwan's science and engineering powerhouses, National Yang Ming Chiao Tung University and National Tsing Hua University, and the National Space Organization, the Taiwanese space agency, are located in the park. There were local residents' protests against water and air pollution. The Park's industrial wastewater treatment plant began to operate in 1986 and effectively treats wastewater for maximum safety while Taiwan's National Environmental Protection Department monitors the air quality in the park and surrounding areas to maintain clean air quality. Locations Currently, the Hsinchu Science Park covers six locations: Hsinchu Science Park in East District, Hsinchu City and Baoshan, Hsinchu County Zhunan Science Park in Zhunan, Miaoli County Longtan Science Park in Longtan District, Taoyuan Tongluo Science Park in Tongluo Township, Miaoli County Yilan Science Park in Yilan City, Yilan County Biomedical Science Park in Zhubei, Hsinchu County Major companies located in the park Acer Inc. Apple Inc. Applied Materials Axtronics Inc. Alpha Networks Inc. AU Optronics ChipMOS TECHNOLOGIES, LTD. (IMOS) Chimei Innolux Cadence Design Systems Coretronic Epistar Elan Microelectronics Corporation Global Unichip Corporation Hermes-Epitek Holtek Kingston Technology Lam Research Lite-On Logitech Macronix International (MXIC) MediaTek Microtek MiTAC MStar Semiconductor MA-tek Inc. Novatek Nuvoton Technology Corp. Optodisc Philips Powerchip Semiconductor (PSC) ProMOS Technologies Qualcomm Realtek Silicon Integrated Systems Shin-Etsu Chemical SMOBIO Technology, Inc. Sunplus Source Photonics Tecom - Tecom Co., Ltd Tokyo Electron TSMC - Taiwan Semiconductor Manufacturing Company Ltd. United Microelectronics Corporation Vanguard International Semiconductor Corporation Wistron Winbond ZyXEL See also Business cluster Economy of Taiwan Mega-Site Southern Taiwan Science Park National Experimental High School: A K-12 school established to provide special education opportunity to personnel of Greater Science Park Area. References 1980 establishments in Taiwan Buildings and structures in Hsinchu Science parks in Taiwan