The Kyocera Group uses large amounts of water for cooling, heating, and cleaning at factories both domestically and internationally, and water resources are essential for the sustainable growth of our business. For sustainable water use, in addition to managing water intake and discharge, we conduct water risk surveys at each location to quantitatively evaluate the impact on the surrounding environment and nature. For the assessment of the natural environment, the Group assesses the water stress level at each production site using Aqueduct Water Risk Atlas data provided by the World Resources Institute (WRI). As a result, in FY2025, there were two locations with high water risk, with a total water intake of 4,604 thousand m3, accounting for 29% of the Group' s total water intake. We have set three-year medium-term reduction targets for locations identified as having high water risk. To achieve these targets, we have set annual targets and are reducing water intake through initiatives such as reusing treated wastewater as cooling water for cooling towers and utilizing water recycling devices to reuse process wastewater. Through these measures, the Kyocera Group aims to balance sustainable water resource use with the needs of our business.
| Targets for FY2025 | Implement measures to reduce water intake by 54,000 m3. (This target is applied to production sites with high water risk based on a water risk assessment.) |
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| Achievements in FY2025 | Implement measures to reduce water intake by 81,600 m3. |
| Targets for FY2026 | Implement measures to reduce water intake by 235,000 m3. (This target is applied to production sites with high water risk based on a water risk assessment.) |
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| Targets for FY2025-2027 (Mid-term Targets) |
Implement measures to reduce water intake by 561,000 m3 in three years.* (This target is applied to production sites with high water risk based on a water risk assessment.) |
The medium-term target for FY2024-26 [830,000m3] set as of April 1, 2025, has been revised based on the latest business environment.
Water Intake
Water Conservation Efforts
Reusing Air-Conditioning Cold Water
The Toyama Nyuzen Plant uses groundwater as a cold-water source for air conditioning. The cold water had previously been used for cooling compressors or as supplementary water for the cooling towers. However, a new process has reduced water intake by reusing the air-conditioning water as rinse water and coolant in manufacturing processes.
● Reduced Water Intake
180,000 m3/year
Reusing Process Wastewater
KYOCERA Document Technology (Dongguan) Co., Ltd. uses a water recycling system to neutralize wastewater from the cleaning process, store it in a tank, and reuse it as cooling water for air conditioners, thereby reducing wastewater discharge by an average of 4,600 m³ per month.
● Reduced Water Intake
55,200 m3/year
