The water used in each iST plant is tap water, no groundwater is used. We use water mainly for daily life and air conditioning. A small amount of water is used as pure water for the labs. No large volume of water consumption is required. We use the Aqueduct Water Risk Atlas developed by the World Resources Institute (WRI) to identify water stress levels in the areas where the iST plants are located. We use the Aqueduct Water Risk Atlas developed by the World Resources Institute (WRI) to identify water stress levels in the areas where the iST plants are located. The iST plants are all located in areas of low or moderate water scarcity, not in areas where water is in short supply, so there will be no significant environmental impacts on water resources and the ecosystems around the water sources.

The total water withdrawal in 2023 was 68,974 metric tons, and the three strategies of “reduction,” “reuse” and “recycling” were implemented for water resource management to lower the water usage intensity by 5.9% in 2023 to achieve the 5% reduction in water usage intensity target.