Occupational Safety and Health

A number of occupational safety and health activities are carried out at our production sites in line with the Industrial Safety and Health Act combined with the individual rules of the companies.

We have introduced an occupational safety and health management system (OSHMS)* making an effort to take our occupational safety and health to the next stage. The OSHMS is a system to organizationally and systematically comply with the laws and regulations and manage the implementation of voluntary rules. By executing a PDCA cycle as a core element of the OSHMS, we will continue to step up the level of the occupational safety and health. Thereby, we prevent occupational accidents along with providing all employees with safe and healthy workplaces.

*1 The occupational safety and health management system (OSHMS) is designed to prevent labor accidents, promote workers’ health and create comfortable workplaces to raise the level of on-site safety and health by setting and implementing a plan-do-check-act cycle, or PDCA cycle, for the voluntary and continuous management of on-site safety and health. Since January 2009, Kawasaki Plant has been certified as a JISHAcompliant OSHMS-certified business site (certification no.: 09-14-9) based on the guidelines set by the Ministry of Health, Labour and Welfare.

Management system

The plant head serves as the occupational safety and health supervisor and appoints an occupational safety and health manager (from among department managers) and an industrial physician, whose roles are defined in our occupational safety and health management rules.

Also, each of the plants has the own occupational safety and health committee composed of the occupational safety and health supervisor, occupational safety and health manager, industrial physician and a representative of the labor union.

The committee meets once a month to discuss and monitor legal issues and works to raise employees’ awareness of the plant’s annual safety and health plan and monthly initiatives.

Safety records

The following figures show Nippon Yakin Kogyo’s safety record.

Compared with other industries and the steel industry overall, our rate of accidents requiring leave(frequency rate) was higher for some fiscal years. However, we have been able to maintain the rate of lost-time accidents (severity rate) at a low level for many years.

We have thus been successfully preventing the occurrence of serious accidents but have not yet reduced the number of minor accidents to zero. Zero accidents is a challenge that we should meet. Deeply recognizing the result, we will work to further improve our safety level for zero accidents.

Frequency rate
Severity rate


Nippon Yakin Kogyo produces products that meet customer needs and specifications while complying with related laws, regulations and standards. As a method for managing and increasing our product quality, we are committed to establishing, implementing, maintaining and constantly improving our quality management system that meets the requirements determined by JIS Q 9001/ISO 9001 and JIS Q 9100.

Quality policy

Kawasaki Plant is strict with the quality policy and quality assurance activity-related concept. The policy and concept are communicated across the Plant in a manner helping all on-site workers understand the details. The quality policy is intended to have the following attributes:

  1. Be appropriate for the purpose and situation of the Plant and help it to make progress in a strategic manner
  2. Provide a framework for the Plant to set the quality targets
  3. Include a commitment to meeting the requirements applied to the Plant
  4. Also include a commitment to improving the quality management system on a continual basis

Quality improvement initiatives

Nippon Yakin Kogyo is executing a PDCA cycle as provided for under JIS Q 9001 for the maintenance and improvement of the product quality. Specifically, we make a plan (P) in consideration of risks and opportunities, do (D) things as planned for the achievement of our quality targets, check (C) the improvements made, and then act (A) by reporting the results for review by the management team.

Quality assurance system

We have the Nippon Yakin Kogyo Group Quality Assurance Committee, chaired by a director appointed by the president to continuously improve the Nippon Yakin Kogyo Group’s quality assurance system. This committee is tasked with the following roles:

  • Formulate policies on the improvement of the quality assurance system
  • Carry out audits at Group companies’ major production bases (once a year in principle)
  • Organize a meeting of Group companies’ employees in charge of quality assurance (once a year)

Standardization activities

To ensure that our products are competitive, we are actively carrying out standardization activities, registering our products for standards such as JIS. Major products of ours, including 64 , 254N and 354N , have already been made JIS-compliant.

Human Rights

Companies are required to recognize that they may have direct and/or indirect impacts on human rights through their business activities and take measures to prevent human rights infringements.

To ensure that Nippon Yakin Kogyo respects and protects the human rights of all its employees, we have established a code of conduct and anti harassment regulations to clarify appropriate behavior in the Company. We also established Nippon Yakin Kogyo Group Helpline Rules, which stipulate the internal consulting and reporting systems that must be present to promptly detect and take correct ive action against unfair acts by organizations and individuals within the Group.

In 2020, the Japanese government determined the National Action Plan on Business and Human Rights. Since then, human rights issues, including those in companies’ supply chains, have been attracting considerable attention. Nippon Yakin Kogyo is aware of the importance of addressing these issues and aims to create an even better system than those mandated by these government rules through ongoing discussions at meetings of the Sustainability Strategy Promotion Committee.

Nippon Yakin Kogyo Group Human Rights Policy

We have established the ”Nippon Yakin Kogyo Group Human Rights Policy”(the Policy) as of April 30,2024.
We have established the Policy with the aim of clarifying Nippon Yakin Kogyo Group’s thoughts regarding the respect of human rights in business operations.
Through it, we hope to empower all employees of Nippon Yakin Kogyo Group to take initiatives on this matter.
By following this Policy, we will contribute to an inclusive society which prevents human rights violations and discrimination.

Prevention of harassment

Nippon Yakin Kogyo has established rules to prohibit harassment and all other forms of misconduct, including sexual harassment, abuse of power and harassment of pregnant employees and employees taking maternity, paternity, parental or long-term care leave. Workplace harassment undermines personal dignity and integrity. Such unfair acts create a hostile work environment and should never be permitted.

We provide employees with education to prevent harassment and in FY2023, we conducted an online harassment prevention training seminar for all managers. We also provide employees with services providing advice about harassment, including an internal email-based service and a readily accessible external service.

To protect the victims of harassment, we have also set rules to safeguard the privacy of anyone who uses the advisory service and prevent any reprisal against them.

Promotion of diversity, equity and inclusion

One of Nippon Yakin Kogyo’s action guidelines is “We respect diversity and differences, and demonstrate our comprehensive capabilities with a spirit of harmony.”

According to the results of a survey conducted by the Ministry of Internal Affairs and Communications, Japan’s working population has been decreasing since reaching a peak in 2008 and will continue to drop at an accelerating rate.

Against this backdrop, women and older people are increasingly expected to join the workforce. Also, in line with the changes of the times, values have become diversified and a range of flexible work arrangements are needed. We believe that respecting the diverse backgrounds and ideas of employees and enabling all employees to thrive here will help us achieve sound growth and are promoting diversity, equity and inclusion in the workplace accordingly.

Employment of people with disabilities

Nippon Yakin Kogyo also fosters the employment of people with disabilities for the creation of a society where all people can make valuable contributions. Kawasaki Plant provides the employees with disabilities with a special office space where they can work in comfort, as well as dedicated support personnel, giving due consideration to their individual characteristics.

Promotion of empowerment of women

Nippon Yakin Kogyo is taking on the challenges of proactively employing women and assigning them to diverse workplaces and of providing women with workplaces where they can work in greater comfort. To meet these challenges, we are implementing the following initiatives.

First, we have set the target of increasing the rate of women hired in career-track positions to at least 20% of the total number of candidates in our action plan made in line with the Act on the Promotion of Female Participation and Career Advancement in the Workplace. Four out of the 14 career-track employees who joined the company in April 2023 are women.

We have a total of 12 female production operators as of April 2023. To help them work in greater comfort, we have introduced electric tools, workbenches and lifters to reduce the physical load imposed on them. We have also installed shower rooms and powder rooms for exclusive use by female employees.

Action Plan Based on the Act on Promotion of Women's Participation and Advancement in the Workplace

1 PeriodApril 1, 2022 to March 31, 2025
2 Our challenges
  • Proactive employment of women and their assignment to diverse workplaces
  • Provision of workplaces where women can work with peace of mind
3 Targets
  • Increase the number of women hired as candidates for executive positions to at least 20% of the total
  • Consistently maintain the rate of paid holidays taken at 70% or higher

Powder room for exclusive use by female employees

Retirement age raised to 65

In April 2023, we raised our retirement age to 65 and transitioned to a new personnel system.


In the past, employees could receive what we could call full old-age pension from age 60, and like many other companies, many of our employees retired at the age of 60.

However, the pension is now paid from age 65 and people are living for longer: we have entered an age of 100-year-olds. Because of this, many people want to work past 60, and like other companies, we have introduced a reemployment system under which, as a general rule, all employees who wish to work until age 65 can do so. However, our systems were not fully prepared to handle employees continuing to work past 60 with the same motivation as before under our reemployment system, and many employees join us mid-career instead of as new graduates, meaning that in an increasing number of cases, including those of current employees, it is not possible to handle employees in a unilateral way connected to their age.

Based on this, we have revised our entire personnel system, including discontinuing systems like our qualification system which were based on years worked here, and transitioned to system where current effort and results are rewarded from the time the employee is hired to the time they turn 65.

Data on employees for last three years

Human Resource Development

In recognition of the structural changes in our business environment, we are promoting human resource development to ensure that Nippon Yakin Kogyo can celebrate the 100th anniversary of the founding in 2025 and continue to achieve resilient and sustainable growth beyond that date.

Collective training

We introduced collective training using a remote online communication system in response to COVID-19. We also provide face-to-face collective training with measures to prevent infection to facilitate active discussion.


We have a system to help career-track employees develop their abilities. As a part of the system, we provide them with online video training. We have thus improved the environment for learning by providing opportunities to learn on a daily basis without restriction of when and where different from the conventional education style. Under the system, employees can choose for themselves the items they want to learn depending on their job duties.

Financial support for capacity building

We provide the financial support to take external training to encourage career-track employees, manager candidates and experts in practical operations, to independently acquire additional skills outside of their jobs. This includes correspondence courses and book purchases to boost their management, leadership, financial skills, accounting knowledge and IT literacy.

Development for production operators

For production operators, we clarify the skills necessary for them to perform their jobs and formulate specific development plans to help them acquire those skills through OJT and OFF-JT. We use an evaluation table to centrally manage their education to help them develop the skills they need.

For new employees, we have a training system called “shop adviser” under which they receive one-on-one education from senior staff members. Through this system, we hope to better motivate new employees while also helping them promptly acquire the necessary skills as they gradually adjust to the workplace.

In our safety education, we make effective use of VR technologies to provide trainees with virtual experiences of work hazards in a safe and immersive manner, thereby preventing accidents and raising their safety awareness.

Hands-on safety training using a VR system

Program for studying at the College of Industrial Technology

We have a program allowing employees who have graduated high school or are equivalently skilled to study at the College of Industrial Technology to receive a specialized technical education and become technical employees with both an academic and professional insights. After studying at the College of Industrial Technology for two years, we expect to see these employees in a wider range of career-track roles.

Program for studying at the College of Industrial Technology

Measures for Work-Life Balance

We are implementing measures to help employees maintain a work-life balance so that they can perform their duties and achieve job satisfaction while also spending time outside the workplace meeting family responsibilities, participating in their local communities and pursuing personal goals, thereby leading a healthy and fulfilling life.

Results concerning the major systems and initiatives

We have a system to help career-track employees develop their abilities. As a part of the system, we provide them with online video training. We have thus improved the environment for learning by providing opportunities to learn on a daily basis without restriction of when and where different from the conventional education style. Under the system, employees can choose for themselves the items they wish to learn depending on their job duties.

Mental health measures

To help each employee to keep working in good physical and mental health, we are implementing measures to help them ward off mental illness and detect any issues at an early stage. We conduct a stress check test of employees every fall and annually provide employees in charge of occupational safety and health at each of our workplaces with mental health training.

Stakeholder Engagement

Communication with local communities: social contribution activities

Nippon Yakin Kogyo, under the leadership of Kawasaki and Oheyama Plants and in cooperation with the related Group companies, communicates with local residents to help them deepen their understanding of the Company and to contribute to the creation of a safe and comfortable living environment and the revitalization of local communities.

Kawasaki Plant
Inari festival

The Plant has an Inari shrine on the premises where we hold a festival every year on November 3. We invite local residents to attend the festival, at which we pray for the safe operation of the Plant and for the safety of the local area and also dedicate a dance to the god of the shrine.

Summer festival

Together with the labor union, Nippon Yakin Kogyo annually holds a summer festival to reward employees for their efforts and to promote exchange with the local residents’ associations and others related to the company.

Clean-ups of nearby roads

Employees of Kawasaki Plant conduct a clean-up activity on the sidewalks of the Itsukushima Bridge [overpass] and Tonomachi Yakosen near the Plant twice a month.

Oheyama Plant

Plant tours

Tours of the plant are offered not only to business partners but to local elementary to high school students. 72 people toured the plant in FY2023, where they were given a brief overview of the plant’s business activities and learned about its decarbonization efforts using recycled materials and its environmental initiatives.

Clean-up activity for the Amanohashidate sandbar

A total of around 40 employees, including the head of the Plant, participate in the activity to clean up the Amanohashidate sandbar, which is regarded as one of Japan’s three most scenic views, every spring and fall for the beautification and protection of the scenic beauty.

Communication with shareholders and investors

To further increase Nippon Yakin Kogyo’s corporate value, we make sure to provide shareholders and investors with pertinent information in a timely manner by issuing documents such as year-end reports and interim reports at the end of the second quarter. We also hold twice-yearly briefing sessions for institutional investors, attended by our president, to provide explanations about our financial results and management plans. In 2019, as a new initiative, we invited individual shareholders to take a tour of Kawasaki Plant. We have suspended this initiative due to COVID-19 but plan to resume it after a four-year suspension in FY2024.

Communication with customers

As we are required to supply products that meet the needs of our customers, we aim to continuously earn their trust by providing the industry’s top-level products and services in terms of quality, due dates, cost, and technologies and solutions in order to be a sustainable company.

Our products have a significant effect on the quality and performance of the final products made by customers. Accordingly, it is essential for us to communicate appropriately with our customers at the consulting stage, before we receive orders from them, and subsequently, including at the manufacturing, delivery and follow-up stages. While responding to changes in the market environment including the trends for globalization and carbon neutrality, we are sincerely working to meet our customers’ requests from a long-term viewpoint.

For the provision of solutions, we are fostering communication with customers mainly through the Material Solutions Sales Department. We offer advice on product selection based on sample testing and property confirmation, guidance on processing and welding methods, and proposals that utilize our database and technical knowledge. Moreover, we closely cooperate with our customers for product improvements and the development of new products, thereby building even stronger relationships with them.


The movement for responsible mineral procurement in global society not only includes measures against conflict minerals; it has rapidly expanded to all mineral procurement, including human rights due diligence and addressing ESG risks in supply chains. As a result, the scope of minerals, risks and regions is growing. Additionally, with moves such as the establishment of the National Action Plan on Business and Human Rights in various countries in Europe and North America, companies are increasingly obligated to perform human rights due diligence in their supply chains. Based on this, there is a growing call from stakeholders for companies to perform human rights due diligence and address ESG risks throughout their supply chains.

Like other companies, we are working to achieve responsible mineral procurement, paying attention to movements in government policy and industries in various countries and working together with various departments to strengthen our initiatives.

Management of conflict minerals

We have established the Conflict Minerals Management Rules (hereinafter, “the Rules”) for the management of so-called Conflict Minerals (i.e., gold, tin, tantalum, tungsten, and other minerals themselves, or alloying materials containing such minerals). We obtain the CRT (Cobalt Reporting Template) and CMRT (Conflict Minerals Reporting Template) from raw material suppliers via trading companies, and otherwise collect and confirm information on conflict minerals, which we retain for seven years.

At Nippon Yakin Kogyo, the Export Trade Control Committee deals with issues related to conflict minerals. The Export Trade Control Committee checks the Company’s responses to conflict minerals, which are also examined through internal auditing, and reports the details of its activities at the Management Meeting.

Oheyama Plant An ore yard

Human rights due diligence, etc. across the supply chain

Our rules and regulations incorporate mechanisms such a system to gather information from business partners about raw materials, secondary materials and other supplies connected to countries and regions requiring human rights due diligence, such as procurement from the Xinjiang Uyghur Autonomous Region or companies involved in forced labor by Uyghurs.

The Japanese government recently issued its Guidelines on Respecting Human Rights in Responsible Supply Chains, and Nippon Yakin Kogyo will continue exploring appropriate initiatives to ensure that human rights are upheld.

We are also taking appropriate individual measures to address calls to handle ESG risks, including working to achieve carbon neutrality.

Declaration of Partnership Building

Nippon Yakin Kogyo has agreed to the statements by the Council on Promoting Partnership Building for Cultivating the Future, comprising the Chairman of the Japanese Business Federation, the Chairman of the Japan Chamber of Commerce and Industry, the President of the Japanese Trade Union Confederation and relevant ministers (Cabinet Office, Ministry of Economy, Trade and Industry, Ministry of Health, Labour and Welfare, Ministry of Agriculture, Forestry and Fisheries, Ministry of Land, Infrastructure, Transport and Tourism), and announced its own Declaration of Partnership Building in June 2022.

To build new partnerships with the business partners in our supply chain, we will form alliances beyond factors such as our existing business relationships and the scale of our business with the aim of achieving mutual prosperity for Nippon Yakin Kogyo and its business partners. These partnerships will also include support such as business continuity assistance in cases such as disasters and advice from the perspective of work practice reforms.

We also uphold suitable practices for trading with subcontractors (Development Standards based on the Act on the Promotion of Subcontracting Small and Medium-sized Enterprises), actively and continuously work to correct trade and business practices that prevent the building of partnerships with business partners, and work to build a sustainable society and a resilient company under our management philosophy of “We promote the well-being of all who join with us”.