Water Resource Conservation

Policy and Basic Approach
System
Initiatives

Policy and Basic Approach

Water resources are key resources in limited supply, making their sustainable use and conservation an international issue. For the Nippon Kayaku Group, water is not only recognized as an irreplaceable support for our business activities, not least in the manufacture of chemical products, but also as a vital resource to be shared with local communities and ecosystems. With our business now expanded to 12 countries and regions, our Group considers water resource conditions and regional characteristics at each of its sites and works towards both efficient water use and appropriate water management. We are therefore engaged in water use reduction, promotion of recycling, and thorough water quality management so as to lessen environmental burdens and help conserve water resources. We are also preparing systems capable of appropriately responding to physical risks stemming from the effects of drought, flooding and water pollution, as well as external environmental risks, such as tightened water regulations and water price fluctuations, perceived to possibly impact our business. Moving forward, while seeking compatibility between business activities and water resource sustainability, we shall contribute to solving the water issues of society at large.

System

Responsible Care Promotion System

Initiatives

Grasping Locations of Water-stressed Regions

The Nippon Kayaku Group has grasped the risks related to water resource use. In pursuit of more efficient responses, we have made use of the World Resources Institute (WRI)-developed “Aqueduct” water risk assessment tool to investigate water stress conditions for each region hosting a Group factory. For Kayaku Safety Systems (Huzhou) Co., Ltd., where the water stress level has been deemed “High to Medium” and thus comparatively high, we have fixed a plan for periodical Environment, Health and Safety Audits as we continue to confirm the implementation of appropriate water resource management. Moving forward, we will roll out such confirmatory checks to all other factories in high water-stress regions, and press on with the fixing of plans to reduce future water quantities used.

Water-stress Investigation Results for Nippon Kayaku Group Manufacturing and R&D sites (FY2025)^*1

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Region / Country Name		Unit	Water amounts used at each water stress
Region / Country Name		Unit	High	Medium-high	Medium	Low-medium	Low
Asia	Japan	thousand m³ (Number of sites)	0	1,451（2）	20（3）	8,257（5）	0
	China	thousand m³ (Number of sites)	20（1）	436（3）	0	0	0
	Malaysia	thousand m³ (Number of sites)	0	0	0	0	24（1）
Europe	Czech Republic	thousand m³ (Number of sites)	0	20（1）	0	0	0
	Netherlands	thousand m³ (Number of sites)	0	0	0	0	3（1）
	United Kingdom	thousand m³ (Number of sites)	1（1）	0	0	0	0
North and Central America	United States	thousand m³ (Number of sites)	65（1）	0	0	2（1）	0
North and Central America	Mexico	thousand m³ (Number of sites)	8（1）	0	0	0	0
Total^*2		thousand m³ (Number of sites)	94（4）	1,907（6）	20（3）	8,259（6）	27（2）

*1We are currently using the Aqueduct Water Risk Atlas to investigate these points.
*2As figures have been rounded off, the totals in some columns do not eaxctly match the sum of each item above.

Water Management Plan and Reductions

For the Nippon Kayaku Group, water is a key management resource which supports our product manufacturing process. We therefore observe it from the dual compatible standpoints of efficient water resource use and reducing environmental burdens, and are moving forward with relevant initiatives at every business site, including: grasping and monitoring amounts of water used, promoting process improvements and recycling; and thorough wastewater management. Since FY2024, we have also implemented the LEAP analysis based on the thoughts of the Taskforce on Nature-related Financial Disclosures (TNFD) to view water resources from the standpoints of dependency and effect, and identify Materiality Regions as management priorities. We shall therefore move forward with a focus on business sites in high water-stress regions, and upgrade our water resource management through fixing specific targets for water use reductions and efficiency, and better continuous monitoring. Such initiatives will take us towards achieving compatibility between delivering sustainable water resource use and stable business growth.

Business Unit Initiatives

Fukuyama Plant
Initiatives Aimed at Reducing Water Use

At the Fukuyama Plant, wastewater emanating from the dye production process is treated onsite, then released into the Seto Inland Sea. The plant has been producing inkjet printer dyes since the year 2000, and has consequently invested effort into improving wastewater treatment methods, looking into individual processes tailored to production type and examining numerous ways of altering production processes to lower environmental burdens.
The fruits of such activities can be seen in the form of phased reductions in contracted industrial water amounts, which fell from 24,000m³ to 23,000m³ per day in FY2015, and to 22,000 m³ per day in FY2018. Thanks to further polishing of its wastewater treatment methods, the plant is now able to produce more on the same amounts of industrial water. It is also working on reducing the amounts of regular water used both production and equipment cleaning.

Kayaku Safety Systems Europe
Introduction of Rainwater-utilizing Equipment

As part of its capital investment activities to promote environmental conservation, Kayaku Safety Systems Europe (KSE) introduced a water storage tank system in 2017 so that rainwater may be used more efficiently. It has installed the equivalent of 750.5 m³ tank. By using both rainwater and the water released by the shop floor air conditioning system for purposes other than drinking, the plant has not only achieved more efficient use of water resources but also lowered its costs.
Water reuse is currently of pivotal importance to the Czech Republic, which has seen rainfall decrease under the impact of climate change. The amount of water that KSE has stored up post-FY2020 exceeds the annual drinking amounts of all KSE employees and their families (around 4000 people). This particular project therefore marks a contribution towards a sustainable society.

Indicators	Scope	Unit	2021	2022	2023	2024	2025
Volume of water store (planned)	KSE	m³	5,040	5,040	5,040	5,040	5,040
Volume of water stored (actual)	KSE	m³	7,234	6,802	7,786	7,043	6,830
Cost Savings	KSE	JPY 10,000	411	335	428	477	536

Kayaku Safety Systems Mexico
Initiatives Aimed at Reducing Water Use

As part of its commitment to environmental conservation, Kayaku Safety Systems Mexico (KSM) has embarked upon improving its use of water resources to help resolve issues concerning limited usable water in the surrounding region. KSM mainly uses water for cleaning equipment and containers, and for manufacturing processes.
Improvement activities have involved raising standards for the production process and water treatment, and providing education to make employees more water-resource conscious. KSM’s activities throughout FY2024 resulted in a 44% (6870-liter) reduction in use of water resources.

Indicators	Scope	Unit	2022	2023	2024	2025
Water Use	KSM	m³	15,762	12,792	8,892	7,866
Reduction in Water Use^*	KSM	m³	-	2,970	6,870	7,896
Water Use Reduction Rate^*	KSM	％	-	19%	44%	50%
Cost Savings	KSM	JPY 10,000	-	63	146	167.9

*Compared with FY2022

CDP Disclosures（Water Security）

Since 2020, the Nippon Kayaku Group has provided responses to the CDP, an information-disclosure program concerning climate change risks to business. Our responses to the 2025 CDP gained us an A grade for our Climate Change Report and an A- grade for our Water Security Report.

Recognition and Awards

Related Data

ESG Aggregated Data(Water)

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