Environmental Management

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Basic Philosophy

Our environmental management system, operating on the environmental policy shared by the entire Group, ensures systematic and effective environmental preservation activities. Under this system, all Group companies strive to achieve the Eco Vision.

Promotion system

Our group has a matrix-type structure including business departments and respective regions, promoting environmental activities while having individual roles clarified. Each department is expected to manage its own targets on items relevant to business activities, for example, “Global warming”, “Natural resources”, “Toxic, hazardous chemicals”, and “Key quality” under the Global Eco Vision 2020 for the practice along with business activities. Meanwhile, we take the initiatives to such activities as compliance of regulations, and communication with local society mainly on the region basis in accordance with action plans. Various sub-committees are set up as the cross-functional team across the department for promoting activities.
The activities will be confirmed with respect to the progress toward the target, and task in Central Environmental Committee at which President, directors, department managers, environment control managers in the respective regions, and chairpersons of the sub-committees are present for continuous improvement.

Environmental Activity Promotion Organization

The Establishment Status of our Environmental Management System

We received ISO 14001 consolidated certification for NGK SPARK PLUG CO., LTD. and 10 group companies in Japan. In fiscal 2016, we received ISO14001:2015 certification on December through upgrade audit.
Other domestic and overseas group companies have already been certified for environmental management systems including ISO14001 certification, individually, resulting in 18 overseas group companies which have received the certification in the end of the fiscal 2017.

Environmental Risk Management

Inherent in business activities are various risks including environmental incidents and pollution. NGK SPARK PLUG's GROUP identifies these risks and endeavors to reduce and/or prevent them.

PCB Control

PCB wastes have been stored at our Headquarters Plant, Komaki Plant, and CS Nakatsugawa under strict control for proper disposal.
We plan to complete proper disposal of PCB waste stored at the Headquarters Plant and Komaki plants in fiscal 2018.

On-site Confirmation of Waste Material Treatment

We regularly visit our waste disposers to confirm that consigned waste materials are being processed in accordance with our agreement. In fiscal 2017, we visited 74 companies.

Handling of Asbestos

We have been taking appropriate measures to prevent health hazards from asbestos. All asbestos used in our facilities has been completely removed. Some asbestos is still present in buildings as insulators, and we will continue to adhere to stringent control measures and periodical confirmation.

Preventing Chemical Leaks

In order to prevent soil and water contamination caused by chemical leaks, we have been implementing countermeasures involving equipment that includes preventing leaks through the development of double layered storage tanks and the early detection of leaks by installing pipes above ground. Wastewater treatment facilities of the respective plants discharge the wastewater only confirmed to be harmless through monitor measurement under routine management.

Drills for Emergency Situations

We hold regular drills for emergency situations to prepare for unforeseen accidents, etc. Each department identifies potential environmental accidents to prevent associated adverse environmental impacts.
Ceramic Sensor held drills for blocking drainage assuming that wastewater in excess of the maximum limit value accidentally flows outside the premise.

Drills for Emergency Situations
(NTK Ceramic Co., Ltd.)

Compliance Status

To ensure compliance with environmental laws and regulations as well as agreements with local municipalities, etc., we set stringent voluntary standards to prevent violations and complaints. In fiscal 2017, there were zero violations of laws or regulations in Japan, and one instance that demanded improvement concerning noise. Since we found problems on how we worked regarding noise complaints, we immediately carried out countermeasures, working to prevent recurrence.

Numbers of Violations (cases)

Company 2014 2015 2016 2017
Affiliates (Domestic) 2 2 2 0
Affiliates (Overseas) 0 0 0 0

Numbers of Complaints (cases)

Company 2014 2015 2016 2017
Affiliates (Domestic) 0 0 0 0
Affiliates (Overseas) - - - -

Handling Violations and Complaints in Fiscal 2017

Company Situation Countermeasures
Complaint Komaki Plant Received complaints from neighborhood residents about the noise caused by lawn mowing on site in Northwestern corner of factory No14. We setup soundproof sheets in the northwestern part of factory No. 14 to avoid noise from idling engines. We also changed to electric lawn mowers.

Environmental Accounting

What is important in promoting environmental management is to gain a grasp of the costs and effectiveness of environmental preservation activities. We have been adopting environmental accounting since 1999, and in 2003 the accounting scope was expanded to include the entire Group.
In fiscal 2017, our environmental conservation costs were 14,281 million yen on a non-consolidated basis, and 15,172 million yen for the Group, an increase of 5,9% over the previous fiscal year. The economic benefit associated with environmental conservation activities totaled 255 million yen on a non-consolidated basis.

Environmental Conservation Costs and Economic Benefits (non-consolidated)
Environmental Conservation Costs (group)


We calculate eco-efficiency by determining net sales per unit of CO2 emissions and generated waste, and endeavor to improve it.
In fiscal 2017, figures of CO2 emissions and generated waste were lessen compared with those of the previous fiscal year resulting from modifying the plants and etc.

CO2 Index
(Domestic group [consolidated certification])
CO2 Indicator=Net Sales/Amount of CO2 Emissions by Production
Waste Index
(Domestic group [consolidated certification])
Waste Indicator=Net Sales/Amount of Waste Emisssions

Environmental Education

Environmental education is conducted to deepen employees’ understanding of environmental issues and raise their environmental awareness.
In fiscal 2017, in addition to rank-specific education, we held four courses on “Environmental basics”, “Environmental management system”, “Calculation methods for substances with an environmental burden”, and “Environmental laws and regulations (for facilities).
Furthermore, we went to the departments related to these four laws and regulations and began providing on-site environmental law training focused on the necessary compliance.
In regard to the “Environmental Handbook” for employee education, we will enhance the content of the handbook to take in consideration the latest trends around the world.

Environmental educationEnvironment Handbook

Status of course participation (FY2017)

Item Number of times Number of persons taking course
Course on environmental basics 11 times 134 persons
Course on environmental management system 15 times 229 persons
Course on calculation methods for substances with an environmental burden 6 times 99 persons
Course on environmental laws and regulations
(for facilities)
9 times 126 persons

Support for Suppliers

We offer our suppliers environmental education and support for establishing environmental management systems to acquire third-party certification. Since 2007 there have been applications for assistance from 43 companies, and 42 of them have obtained ISO 14001 or Eco-Action 21 certification. We continue to provide assistance to four companies configuring environmental management systems.

Environmental Management Classes Held in Fiscal 2017

Topic No. of Companies Attending No. of People Attending
ISO14001 7 9
Eco-Action 21 5 7

EMS Third-Party Certification Support Conducted

Topic No. of Companies Attending (total sum)
ISO14001 6
Eco-Action 21 37