Environmental Management

The NGK Group promotes environmental conservation activities in accordance with our Core Policy on the Environment through initiatives pertaining to environmental management frameworks and the Environmental Management System (EMS) implemented by global Group companies working in conjunction with one another.

Consolidated Environmental Management Promotion System

In addition to environmental management systems built independently at each site of NGK (Nagoya, Chita, Komaki, Ishikawa), we have established a consolidated management system to control environmental activities at all Group companies in and outside Japan under the leadership of each Business Group. The Five-Year Environmental Action Plan and the related annual plan are shared across the entire Group via the Business Groups to be incorporated into activity plans of each Group company.

To promote unified environmental management for the entire Group, annual liaison meetings are held for Group companies in Japan, while headquarters personnel visit Group companies outside Japan on a regular basis. Thus, we create interactive discussion and support opportunities to address issues facing each company.

Environmental Management System (ISO 14001, etc.) Initiatives

The NGK Group encourages the acquisition of ISO 14001 or third-party certifications (such as Eco Stage 2 or Eco Action 21 in Japan) meeting this standard to systematically and continuously develop its environmental conservation activities in line with NGK's Core Policy on the Environment. Under this initiative, a total of 44 manufacturing sites, including those in Nagoya, Chita, Komaki, and Ishikawa, have been certified appropriately.
We will work to expand the certification initiative within the Group, particularly targeting new plants. The Group will make effective use of these environmental management systems going forward with the intention of reinforcing its environmental management.

Certification of Environmental Management System(as of March 31, 2019)

Categories Number of manufacturing bases Number of bases certified
NGK 4 4
Domestic Group Power Business 6 3
Ceramic Products Business 1 1
Electronics Business 12 12
Process Technology Business Group 4 4
Overseas Group Power Business 4 3
Ceramic Products Business 9 9
Electronics Business 5 5
Process Technology Business Group 4 3

Note: Since fiscal 2016, the method of counting manufacturing bases that have EMSs was changed so that it counts the number of sites and the number of plants separately.

Environmental Audits

NGK conducts internal audits and external audits (renewal audits) of the environmental management system at the Nagoya, Chita, and Komaki sites, as well as the Ishikawa Plant. Group companies also conduct these same internal audits, and external reviews of the environmental management systems are conducted by external auditors at all Group companies.
In fiscal 2018, in the same way as with the previous year, there were no significant findings. In the event of a significant finding, the relevant division and Environmental Management Dept. work together to review and implement countermeasures, as well as inform environmental committees in each area in an attempt to horizontally deploy these measures.

Environmental Risk Management

At the NGK Group, each manufacturing site has individually established environmental management systems to prevent environmental pollution.
In fiscal 2018, the NGK headquarters conducted audits at 22 manufacturing bases in Japan and 11 overseas, with a focus on environmental risk control.
Based on audit results, problems were remedied and support was provided for improvements as part of efforts to improve the management level for the entire Group.

Strengthening of Global Environmental Management

In accordance with the Guidelines for Environmental Action, the NGK Group horizontally deploys domestic environmental impact reduction initiatives in Group companies outside Japan while creating mechanisms to strictly comply with amendments to environmental laws and regulations to propel our global environmental management to the next level.

Chemical Management System

Since fiscal 2006, the NGK Group has been reducing the amounts used of organic solvents covered by PRTR and switching to substitute chemicals at its manufacturing bases in Japan. As a result of these efforts, in fiscal 2010 we reduced by 30% against fiscal 2005 the atmospheric emissions of these substances.

For NGK sites on a non-consolidated basis, strict checks are carried out when new substances come into use as part of efforts to maintain and raise the level of management. For example, before purchasing a new chemical substance, the Chemical Substances Safety Committee decides whether it should be used, then confirms with, and provides guidance to, the departments that will use the chemical on important matters regarding the chemical's use and disposal. The departments using the new chemicals thus take the lead in proper management of the substances. Thanks to these efforts, atmospheric emissions of organic solvents and other PRTR-listed substances at NGK decreased in fiscal 2018 against fiscal 2005 by 59%. We are transferring this success to our main overseas manufacturing bases so that they lead to a lower environmental impact for the NGK Group as a whole.