Human Capital

Occupational Safety and Health

Occupational Safety and Health > Occupational Health and Safety Policy

*This policy has been approved by the Board of Directors of Niterra Co., Ltd.

Basic Philosophy

The Niterra Group has many employees in various locations around the world. We believe that it is our responsibility to make continuous efforts to protect the physical and mental health and safety of each and every employee. We contribute to society by providing our employees with a working environment conducive to mental and physical well-being so that employees can continue to work happily and comfortably.

Promotion System

Our Group has established and operates an OHSMS (Occupational Health and Safety Management System) to eliminate occupational accidents and create a comfortable workplace environment, and has established the Central Health and Safety Committee (with regular meetings twice a year and extraordinary meetings as necessary), chaired by the Chief Safety and Health Officer. The Central Health and Safety Committee addresses health and safety issues within Our Group, receives reports on health and safety activities from each company, holds discussions, and conducts management reviews by the General Health and Safety Manager. In addition, each company sets targets and plans, and engages in health and safety activities through plant-level health and safety committees and other bodies. Important decisions made by the Central Health and Safety Committee are reported to the Board of Directors via the Management Committee.

In FY2025, the Central Health and Safety Committee met twice to discuss issues related to achieving zero occupational accidents causing absence from work by 2030, as well as measures to address these issues.

Health and Safety Promotion Organization

OHSMS (Occupational Health and Safety Management System)

In FY 2021, our company acquired ISO 45001* certification, an international standard for occupational health and safety management systems.
As of the end of FY2025, 8 domestic group companies and 24 domestic group manufacturing sites have acquired ISO 45001 multi-site certification. As for overseas Group companies, individual certification is in progress, and as of the end of FY2025, there are 12 overseas Group companies that have acquired certification. The employee acquisition rate is 97%.

  • ISO 45001 is the international standard for occupational health and safety management systems issued by the International Organization for Standardization (ISO).

ISO45001 Certified Locations

<Multi-site Certification>

Country Name of factories and companies
Japan Niterra Co., Ltd. Komaki Plant
Satsuma Plant
Ise Plant
Inuyama Logistics Center
SparkTec WKS CO., LTD. Head Office
Satsuma Plant
Satsuma Electrode Plant
Nino Plant
Tono Plant
Okusa Plant
NTK CERAMIC CO., LTD. Komaki Plant
Iijima Plant
Kani Plant
CERAMIC SENSOR CO., LTD. Komaki Plant
Ise Branch room
Nakatsugawa Plant
NANSEI CERAMIC CO., LTD. Head Office Plant
Komaki Plant
 NTK CERATEC CO., LTD. Head Office Plant
Sendai West Plant
Komaki Plant
MORIMURA SOFC TECHNOLOGY CO., LTD. Komaki Plant
Takenami Plant
Niterra Materials Co., Ltd. Head Office Plant

<Certification Obtained Individually>

Country Name of factories and companies
Brazil Niterra do Brasil Ltda
France Niterra France SAS
Thailand Siam Niterra Co., Ltd.
Niterra (Thailand) Co., Ltd.
Niterra ASIA Co., Ltd.
Malaysia Niterra Malaysia Berhad
China Niterra(Shanghai)Co., Ltd.
Niterra(Changshu)Co., Ltd.
Indonesia PT Niterra Mobility Indonesia
India Niterra India Private Limited
South Africa Niterra South Africa (Pty) Ltd.
America Niterra North America, Inc.
WEST VIRGINIA FACTORY

Health and Safety Targets and Results

In order to achieve the ideal state of health and safety and the future we are aiming for, each group company and division sets its own goals and works to achieve them.

Vision and Direction of Occupational Safety Initiatives

Vision
  • Developing “people” who can act safely
    Develop people who are aware of workplace risks and rules and who can act safely on their own.
  • Providing safe “work” conditions
    Promote risk reduction and management to provide safe work conditions for workers.
  • Creating a safe “working environment”
    Improve and maintain the working environment through work environment measurements and 5S activities.
  • “Health” of employees and their families
    Ensure that employees work in a comfortable working environment, and raise health awareness of employees and their families to help them maintain and improve their physical and mental health.
Direction
  • Zero work-related injuries and illnesses! And Continuation!

<Niterra Group Health and Safety Target for FY2030>

Target
Zero lost time injuries

Initiatives for Achieving the Niterra Group Health and Safety Targets for FY2030

In FY2025, for all domestic Group companies, we will work to identify hazards and implement measures for equipment. We plan to implement equipment measures for approximately 88% of the total, with the remaining approximately 12% scheduled to be implemented in the first half of FY2026.
Moving forward, we will promote the rollout of Niterra safety standards for overseas Group companies.
In addition, toward acquiring ISO 45001 group multi-site certification in FY2026 for Niterra Materials Co., Ltd., which newly joined the Group, we have commenced the rollout of the occupational health and safety management system.

Reporting Procedures and Occurrence of Occupational Injuries

<Response to Occupational Injuries>

When an industrial injury occurs, based on reports from the workplace, the facts are investigated by the workplace and the Safety and Health Management Dept., and appropriate countermeasures, etc. are taken.
In addition, an "Injury Report" summarizing the details and circumstances of the injurie and a "Root Cause Analysis & Countermeasure Report" describing permanent measures and other information are distributed to all Group employees to raise awareness and prevent recurrence.

<Occurrence of Occupational Injuries in Niterra Group>

In FY2025, our group had 63 injuries. The number of injuries resulted in 31 cases of lost-time injuries and 32 cases of no lost-time injuries, none of which resulted in death.
To prevent serious accidents before they occur, we conduct simultaneous inspections of facility safety measures across all domestic Group companies and are taking corrective actions for identified risks.

Breakdown of the types of disasters that occurred
in the Niterra Group in FY2025

Status of Niterra Co., Ltd.

In FY2025, there were 4 occupational injuries (previous fiscal year:7 injuries), and the overall frequency rate was 0.59 (previous fiscal year:1.04). These injuries occurred during equipment adjustment and non-routine operations.

Frequency Rate of Injuries

Status of Group Companies

<Status of Group Companies in Japan>

In FY2025, 30 occupational injuries occurred. Injuries occurred in the adjustment of production equipment and falls during work and transportation.

<Overseas Group Companies>

In FY2025, 29 occupational injuries occurred. The disasters occurred during adjustment and setup of production facilities, etc.

<Number of Occupational Injuries>

  FY2024 FY2025
Lost Time Injuries No Lost Time Injuries Lost Time Injuries No Lost Time Injuries
Niterra Co., Ltd. 2 5 2 2
Status of Group Companies in Japan 8 22 8 22
Overseas Group Companies 14 9 21 8

<Total Frequency Rate>

  FY2024 FY2025
Niterra Co., Ltd. 1.04 0.59
Status of Group Companies in Japan 2.83 2.58

* Our calculation of lost-time injuries frequency rate, total frequency rate and number of deaths were reviewed by Japan Quality Assurance Organization (JQA) and we received the following verification report.

Risk Assessment (RA) Initiatives

Risk assessment (RA) is the core activity of our occupational health and safety management system (OHSMS).
We have reviewed health and safety potential risks resulting from workplace equipment, chemical substances, and work at every workplace including both existing and new businesses, and work at every workplace and evaluated them to take hardware/software countermeasures (residual risk management), prioritizing the most dangerous risks.
Also, the head of the workplace has conducted work observations and reviewed the results of RA.

Improvement of Working Environment

We conduct working environment measurements based on laws and regulations, targeting workplaces that handle chemical substances and workplaces subject to significant dust pollution and severe noise. Plants and workplaces that have been classified in the second or third management category are promoting improvements throughout the Niterra Group with the aim of moving to the first management category by sharing improvement measures at other workplaces.
We also take measures to prevent cases of heat stroke in the summer by measuring the humidity and temperature in hot workplaces, encouraging an adequate intake of water and salt, providing cooling gear and the like.
In our offices, we appropriately control the level of lighting, temperature and humidity to ensure that the environment is suited to the work. In winter, we install humidifiers to help prevent the spread of colds and influenza.

Health and Safety Activities

We conducted a variety of educational and training activities with the aim of building a safety culture from the viewpoint of "people," "products" and "systems". Not only to prevent the recurrence of injuries, but to prevent them from occurring.

Stratified Training

The program is implemented for new employees, third year, tenth year, managers, section managers and supervisors.
The same training is provided throughout the Niterra Group.

Chemical Substance Training

We are working to prevent industrial injuries by enhancing specialized training on chemical substances.

Training with Hazard Simulation Machine

The use of hazard simulation machines, which are designed for simulations of injuries that may occur in a workplace, such as being pinched or entangled, allows trainees to experience the fear of having an injury, which is difficult to describe in words. Trainees can also learn how to avoid injuries.
In addition to direct and indirect work hazard simulators, there is a protective equipment fitting check machine.

Hazard simulation training:
VR (virtual reality) + simulation machines

Implementation of Risk Assessment and Risk Management Training

We conduct risk assessment and risk management training for all domestic Group employees with the aim of preventing disasters before they occur. In FY2025, we conducted a comprehension test on "risk assessment and risk management" for all employees.

Health and Safety Guidelines and Comprehension Test

We distribute the "Health and Safety Guideline" to all Niterra Group employees to ensure they understand health and safety rules, fundamental principles, and lessons learned from the past. To accommodate our increasingly diverse workforce, we have also developed English and web-based versions. By conducting group reading sessions and other activities at each workplace, we ensure these principles translate into safe actions by every employee.

<Examples of Listed Contents>

  • ・Safety Management
  • ・Health/Hygiene Management
  • ・Health and Productivity Management
  • ・Response after Occupational Injury
  • ・Workplace Environment Management
  • ・OHSMS
  • ・Occupational Safety and Health Act
  • ・Emergency Response
  • ・Protective Equipment
  • ・Chemical Handling Work
  • ・Approach to Article 88 of the Industrial Safety and Health Act
  • ・Poisonous and Deleterious Substances
  • ・Office Injury Prevention, etc.

English version
NGK SPARK PLUG CO., LTD.