Preventing Pollution

Policy and Basic Approach
System
Targets and Results
Initiatives

Policy and Basic Approach

The Nippon Kayaku Group is working on preventing pollution and conserving the environment via its Declaration on the Environment, Health and Safety, and Quality. We recognize that increasing environmental value through reducing environmental burdens is a key issue for our Group. With respect to emissions released into the air, water and soil from industrial waste produced, we not only respect national and regional laws but manage such emissions in line with our own yet higher numerical targets. In such ways are we striving to decrease pollution and pollutants.

Our Declaration on the Environment, Health, Safety and Quality

This Year’s Nippon Kayaku Group Responsible Care Policy

System

Responsible Care Promotion System

Audit

In order to confirm whether wastewater and waste are being appropriately managed at every business site and Group company, the Nippon Kayaku Group conducts audits in the form of Core Environment, Safety and Health Diagnostic Checks. These Checks allow us to confirm any problems or inadequacies regarding compliance with laws and regulations on wastewater and waste treatment, run our eye over wastewater treatment areas and waste disposal areas, and grasp any problems with the management situation.

Responsible Care Audits

Targets and Results

Scroll sideways for an overview of the table below.

Indicator	FY2028 Target	FY2035 Target	Scope
VOC Emission Amounts Compared to FY2024	1% per-unit reduction	3% per-unit reduction	Consolidated

FY2025 Sustainability Targets and Results

Initiatives

Reducing VOC and Toxic Air Pollutant Emissions

We are not only working to calculate and reduce emissions of VOCs listed in the Air Pollution Control Act, but of VOCs specified by the Japan Chemical Industry Association also. We are also engaged in reducing emissions of toxic air pollutants from 12 substances we have voluntarily agreed to control, including dichloromethane and formaldehyde. Key examples of initiatives we have taken are listed below.

Exhaust gas processing equipment installed
Gas absorption equipment installed
Regenerative combustion equipment installed
Working practice reform; review of possible substitutes for chemical substances used
Leakage prevention measures

Reducing Sulfur Oxides (SOx), Nitrogen Oxides (NOx) and Particulate Matter

Below can be found a list of Nippon Kayaku measures taken thus far to keep emission levels of SOx, NOx and particulate matter below even the legal requirements.

Switchover of combustibles from C-class heavy oil to A-class heavy oil, LPG and natural gas
Introduction of low NOx boilers and small-sized once-through boilers
NOx denitrification equipment installed
Dust collectors installed

Wastewater Management

At every plant do we prepare treatment equipment to deal with manufacturing process wastewater depending on its composition, and hold ourselves to higher standards than those imposed by law and local authority regulations when keeping tabs on water pollution figures. FY2025 saw zero violations of domestic laws and regulations pertaining to wastewater treatment (such as the Water Pollution Control Act) and treatment and cleansing of waste (such as the Waste Management and Public Cleansing Act).

Numbers of Environmental Violations

Reduction in Hazardous Substances

Based on Japan’s Waste Management and Public Cleansing Act, we have defined Specially Controlled Industrial Waste as “hazardous waste” and prepared an appropriate management system based on internal regulations. Under such strict management practices are we mapping out a thorough process of proper hazardous waste disposal. We are concurrently moving forward with efforts to reduce the overall presence of hazardous substances via thorough suppression of their initial production and waste sorting. Although amounts of waste produced overseas are limited at present, we have still identified hazardous waste in line with the Basel Convention and each relevant country’s laws, and are managing appropriately.

Education and Training

Head Office
Wastewater Treatment Fundamentals Seminar

With our Technology and Responsible Care Division at the core of the initiative, February 2026 saw us aim to improve understanding of wastewater treatment in general. To this end, we held a seminar for all responsible persons connected with wastewater treatment for each domestic business site’s manufacturing line, facilities, technologies and environmental safety. Meeting the standards laid down in the Water Pollution Control Act when releasing factory wastewater into public water areas, and the sewage discharge standards of the Sewerage Act when releasing such wastewater into sewage systems, requires appropriate pre-processing. In our case, the items produced and substances handled differ from site to site, making for diverse wastewater conditions, and necessitating site-appropriate selection of processes which can be stably operated daily. The seminar therefore went over the basics of coagulation treatment and biotreatment; drug infusion amounts; the relationship between treated wastewater quality and pollution amounts produced; operation and management indicators for the active sludge method; responses to load fluctuations and problems such as bulking; and case studies connected to energy-saving and cost-reduction. We will now move forward with continual training for deepening relevant understanding as we work towards thorough compliance and stable operations.

Sustainability Top Page
- Support Information
- ESG Aggregate Data
- Sustainability Report
- Editorial Policy
- Standards Comparison
- ESG Navigation
- Independent Third-Party Inspection Reports
- External Evaluations and Awards

Privacy Preference Center

Your Privacy

Strictly Necessary Cookies

Google Analytics

Cookies used

Pardot

Pardot Cookies used