Sustainability

Our I-lan and Li-Je sites are situated in Yilan County, which is located in the northeastern part of Taiwan. According to the Central Weather Administration, Yilan County experiences a monsoon climate, with an average annual precipitation of over 2,700 mm. Hence, water shortages rarely
occur in Yilan County. In 2023, groundwater constituted approximately 92.3% of the process water used at the I-lan Site, while tap water accounted for 7.7%. Due to the extended rainy seasons in Yilan County and the site’s proximity to the mountainside, coupled with a daily withdrawal of less than 100 tons of groundwater, there has been no depletion of groundwater, and no water rationing measures have been necessary . On the other hand, the Li-Je Site relies on surface water as its water source. It utilizes Wulangkeng River as its primary source of pure water, accounting for approximately 90.7%, with tap water making up the remaining 9.3%. As the Wulangkeng River has consistently maintained its water flow over the years, the Li-Je Site currently does not require any water rationing measures.

The Shandong Site is situated in the North Shandong Plain, where it is located on the shore of the Yellow River, i.e., 130 km from the mouth of the Yellow River, and faces the Bohai Sea to the north as it is located 75 km from the Bohai Sea, with an annual rainfall of about 930 mm. Over the years, the Shandong Site has adopted groundwater as its primary source of water, which makes up 96% of its water consumption, with tap water accounting for the remaining 4%. Following the local government’s proactive efforts to introduce and implement groundwater mining restrictions and management, implement control of total water volume in the Yellow River, and carry out strict monitoring of the use of water resources in recent years, the Shandong Site has rolled out various water resource management measures for many years, resulting in its unit water consumption to be far lower than the industry average and the water consumption quota. Furthermore, water withdrawal and consumption at the Shandong Site have not been affected by regulatory policies as the site is a key enterprise in the local area.

Meanwhile, the Tianjin Site, which is located in the Binhai New District in the eastern suburbs of Tianjin and faces the Bohai Sea to the east, draws water from sources of surface water.

TSC’s Taipei headquarters and Hsinchu Office adopt tap water as their primary source of water, which is used purely for domestic purposes.