Sustainability

With Employees

With Employees

The NGK Group implements a human resource system which enables every employee to perform at their full potential under fair treatment.

Basic Approach

In the NGK Group Code of Conduct revised in January 2019, our relationship with employees is based on the idea of “Respect for Human Rights” and “Provide a Safe and Enjoyable Work Environment” and defined as follows.

Basic Information on Employees

Number of Employees

Item Scope Category FY2015 FY2016 FY2017 FY2018 FY2019
Number of employees*1 NGK 3,700 3,937 4,142 4,119 4,224
NGK Group 16,667 17,517 18,783 20,115 20,000
Number of employees by gender NGK*2 Total 3,717 3,939 4,136 4,355 4,529
Men 3,247 3,440 3,621 3,807 3,951
Women 470 499 515 548 578
Ratio of women (%) 12.6 12.7 12.5 12.6 12.8
NGK Group Total 16,805 17,824 19,406 20,578 20,409
Men 12,855 13,620 15,013 16,167 16,010
Women 3,950 4,204 4,393 4,411 4,399
Ratio of women (%) 23.5 23.6 22.6 21.4 21.6
Number of employees by employment type NGK Full-time employee 3,717 3,939 4,136 4,355 4,529
Contract employee 150 131 398 507 464
Temporary employee 299 322 392 389 395
  • Includes employees from outside companies who have been temporarily assigned to the NGK Group, but excludes employees from the NGK Group who have been temporarily assigned to outside companies.
  • Excludes employees from NGK Group companies or outside companies who have been temporarily assigned to NGK, but includes employees from NGK who have been temporarily assigned to NGK Group companies or outside companies.

Employee Composition by Region

Item Scope Category FY2015 FY2016 FY2017 FY2018 FY2019
Employee composition by region (%) NGK Group Japan 39 39 38 37 39
Asia 29 29 27 25 23
Europe 14 15 18 21 21
North and Central America 17 17 16 16 15
Other 1 1 1 1 1

Employee Status

Item Scope Category FY2015 FY2016 FY2017 FY2018 FY2019
Average age (year) NGK Total 38.6 39.0 38.7 39.0 38.8
Men 38.6 39.1 38.7 38.1 39.0
Women 39.2 38.9 38.6 39.1 38.6
Average length of service (year) NGK Total 15.0 14.1 13.7 14.1 13.7
Men 14.8 14.0 13.6 14.1 14.4
Women 16.3 15.1 14.6 15.1 14.9
Average salary (yen) NGK 7,746,664 7,861,726 7,852,010 7,888,094 7,770,318

Turnover Ratio

Item Scope Category FY2015 FY2016 FY2017 FY2018 FY2019
Turnover ratio (%)
(Only full-time employees, excludes mandatory retirees)
NGK Total 1.2 1.1 0.8 1.4 1.5
Men 1.2 0.9 0.7 1.2 1.3
Women 1.6 2.0 1.9 2.9 2.8

Voluntary Turnover Ratio

Item Scope Category FY2015 FY2016 FY2017 FY2018 FY2019
Voluntary turnover ratio (%)*
(Only full-time employees, excludes mandatory retirees)
NGK Total 0.7 0.8 0.8 1.2 1.5
Men 0.6 0.7 0.6 1.0 1.3
Women 0.8 1.7 1.7 2.5 2.6

Voluntary turnover ratio is calculated by dividing the annual number of employees retiring of their own will by the total number of annual retirees.

Retention Rate of New Hires after 3 Years

Item Scope Category FY2015 FY2016 FY2017 FY2018 FY2019
Retention rate of new hires after 3 years (%) NGK Total 95.1 94.3 94.6 92.6 93.5
Men 94.8 89.2 94.8 97.6 95.2
Women 90.0 100.0 80.0 83.9 85.1

Revision of the Human Resource System for Group S/M/J Employees

In April 2017, NGK revised its human resource system for Group S/M/J employees to enable all employees, from the young to the experienced, to work with enjoyment and fulfillment. As NGK develops its businesses globally and promotes the creation of new products and businesses, it is essential to motivate young and mid-level employees who will take on future key roles and encourage them to demonstrate their full potential. The revised system aims to build the environment that makes these possible.

Key Points of the Revised System

NGK Definition of Employees

Key personnel: Employees in managerial positions
Group S: Key personnel candidates and advanced specialists
Group M: Operational and on-site leaders
Group J: Personnel who seek to actualize, and be utilized to, their full potential