Occupational Health and Safety

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 working environment. We have set up a Central Safety and Health Committee, chaired by the Chief Safety and Health Officer, which holds regular meetings twice a year and extraordinary meetings as needed. The Central Safety and Health Committee reports and discusses safety and health issues within our group and safety and health activities from each company, and conducts management reviews by the Chief Safety and Health Officer. In addition, each company sets goals and plans and works on safety and health activities through safety and health committees at each factory. Important decisions made by the Central Safety and Health Committee are reported to the Board of Directors through the Management Meeting.

In fiscal year 2025, we held two Central Safety and Health Committee meetings to discuss the challenges and responses to achieving zero work-related injuries by 2030.

• Corporate Governance System

OHSMS (Occupational Health and Safety Management System)

Our company obtained ISO45001 ^​ certification, the international standard for occupational safety and health management systems, in fiscal year 2021.
As of the end of fiscal year 2025, all 8 manufacturing sites and 24 locations within our domestic group will have obtained ISO 45001 multi-site certification.
We are proceeding with individual certification for our overseas group companies, and by the end of fiscal year 2025, 12 of our overseas group companies will have obtained certification.
The employee utilization rate, including both domestic and international employees, reached 97%.

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

ISO 45001 certified location

• ISO 45001 Registration Certificate(5.7MB)

Safety and health objectives and last year's results

To realize the ideal state of safety and health and the future we envision, each company and group company sets its own unique goals and works towards them.

The ideal state of occupational safety and health, and the future we aim for (direction).

<Niterra Group Health and Safety Target for Fiscal Year 2030>

Initiatives to achieve Niterra Group's health and safety goals for fiscal year 2030

In fiscal year 2025, we will work on identifying and addressing hazards in equipment across all domestic group companies. We plan to implement measures for approximately 88% of the equipment, with the remaining 12% to be addressed in the first half of fiscal year 2026.
Going forward, we will expand the Niterra safety standards to our overseas group companies.
Furthermore, we have begun implementing a safety and health management system for Niterra Materials Co., Ltd., a new member of our group, with the aim of obtaining ISO 45001 group-wide integrated certification in fiscal year 2026.

Procedures for reporting and circumstances surrounding industrial accidents

<Response in the event of a disaster>

When a work-related accident occurs, we receive a report from the workplace, conduct an investigation of the facts with the workplace and the safety and health department, and take appropriate measures. We also create an accident report summarizing the details and circumstances of the accident, and an accident response document outlining permanent countermeasures, and distribute these to all employees in the group to raise awareness and prevent similar accidents.

<Disaster situation in the Niterra Group>

In fiscal year 2025, the group experienced 63 incidents. Of these, 31 resulted in business closures and 32 resulted in no business closures. There were no incidents resulting in fatalities.
To prevent serious accidents, we are conducting a comprehensive inspection of the equipment safety measures at all of our domestic group companies and taking corrective action against any risks identified.

The situation at Niterra Co., Ltd.

In fiscal year 2025, there were 4 work-related accidents (compared to 7 in the previous year), and the overall frequency rate was 0.59 (compared to 1.04 in the previous year). Accidents occurred during equipment adjustments and during non-routine work.

Status of Group Companies

<Status of domestic group companies>

In fiscal year 2025, there were 30 reported work-related accidents. These included accidents related to adjustments to production equipment and falls during work or movement.

<Status of Overseas Group Companies>

In fiscal year 2025, there were 29 reported work-related accidents. These included accidents during adjustments and setup of production equipment.

<Number of work-related accidents>

<Total accident frequency rate>

* The calculation of the frequency rate of work-related injuries resulting in lost working hours, the total frequency rate, and the number of fatalities has been verified by the Japan Quality Assurance Organization (JQA).

• Social and Environmental Information Verification Report(1.3MB)

Risk Assessment (RA) Initiatives

Risk assessment (RA) is a central activity of the OHSMS (Occupational Health and Safety Management System). In all workplaces, including both existing and new businesses, we thoroughly investigate hazards from equipment, chemicals, and work processes, conduct health and safety risk assessments for each hazard, and prioritize hard and soft measures (residual risk management) for hazards with high risk levels.
In addition, we conduct work observations by workplace managers and re-examine the results of risk assessments.

Improvement of the work environment

For workplaces handling chemical substances or those generating dust and noise, we conduct workplace environment measurements in accordance with the law. For workplaces classified as Category III or II, we share improvement measures with other workplaces and are working to improve them across the entire Niterra Group to bring them down to Category I.

In addition, in hot workplaces, we are taking measures to prevent heatstroke, such as measuring temperature and humidity, replenishing fluids and salt, providing cooling protective equipment, and distributing oral rehydration solutions.
In our office, we maintain a suitable working environment by properly controlling lighting, temperature, and humidity. During the winter months, we use humidifiers to help prevent the spread of colds and influenza.

Enhancement of education, training, and awareness

In order to not only prevent the recurrence of disasters but also to prevent them from happening in the first place, we are working to build a safety culture from the perspectives of "people," "things," and "systems," and are conducting various educational and training activities.

Hierarchical education

This training is conducted for new employees, those in their third year, those in their tenth year, section chiefs/supervisors, and managers, and the same training is provided throughout the entire Niterra Group.

chemical education

We conduct chemical substance training for workers and managers to prevent workplace accidents.

Training using a danger simulation device

Through a hazard simulation machine that simulates workplace accidents such as being caught or trapped, you can experience firsthand the "fear of being affected by a disaster" and how to avoid it, which are difficult to convey in words.
In addition to hazard simulation machines for direct and indirect work, there are also machines for checking the proper use of protective equipment.

Implementation of risk assessment and risk management education.

We conduct risk assessment and risk management training for all employees of our domestic group companies with the aim of preventing disasters. In fiscal year 2025, we administered a test to all employees to assess their understanding of "risk assessment and risk management."

Awareness campaign and comprehension test based on the "HEALTH & SAFETY GUIDELINE"

The Niterra Group distributes a "HEALTH & SAFETY GUIDELINE" to all employees to ensure they understand safety and health rules, basic principles, and lessons learned from the past. To accommodate the diversity of our workforce, we also offer English and web versions, and by having employees read through the handbook in their respective workplaces, we aim to promote safer practices among all employees.

<Examples of content>

• Safety management
• Hygiene management
• Health care
• Response immediately after a work-related accident
• Work environment management
• OHSMS
• Industrial safety and health act
• Emergency response
• Protective equipment
• Handling of chemical substances
• Response to article 88 of the industrial safety and health act
• Local exhaust ventilation system
• Office disaster prevention, etc.

• Return to the Human Capital