Occupational Health and Safety

It is important for each and every employee to maintain and strengthen their mental and physical health in order to shine and flourish professionally. KIOXIA Group has established health and safety as priority areas of focus in terms of ensuring the Group’s medium- to long-term growth (sustainability materiality), and strive to create a safe and comfortable working environment for all employees and workers involved in our business.

Occupational Health and Safety (OHS) Policy

KIOXIA Group’s OHS Policy in Japan was formulated in April 2017 following the declaration by senior management of its commitment to OHS, with the goal of having all employees embrace the same commitment.

KIOXIA Corporation*1 Fiscal 2023 Basic Policy for Safety and Health

Under our mission of uplifting the world with “memory,” by evolving “memory,” the Company will create uplifting experiences and change the world. The Company will also provide products, services, and mechanisms for enabling each person to realize a new future with progressive memory technology at the core.

In its entire business activities, each and every worker*2 will continue to devote oneself to “building a safe and delightful workplace environment and maintaining and promoting a healthy body and mind,” striving to enhance and improve occupational safety and health performance.

  1. The Company hereby declares that safety and health is the most important issue in its management. Under the leadership of Top Management, the Company will establish a safety and health management structure for the implementation of an effective occupational health and safety management system in accordance with management strategy, as well as decide on and provide the necessary resources to form a health and safety culture.
  2. The Company is committed to comply with laws and regulations and other requirements.
  3. To provide a safe and healthy workplace in an ongoing manner by controlling risks and opportunities related to occupational safety and health and preventing labor-related injuries and illnesses, the Company will perform the following matters by setting goals and creating action plans:
    1) Identification and reduction of potential risks for new work processes (installation, tasks, introduction of materials, etc.)
    2) Potential risks in associated work and actions performed between each work step (in accordance with the actual safety management situation at each site)
    3) Re-evaluation of risk for risk level III or above and reduction of new potential risks
    4) Continued promotion of effective and focused measures with respect to the risk of infectious diseases
    5) Improvement of occupational safety and health awareness and evaluation of recognition, maintenance, and effectiveness of competence
  4. Strive to “cultivate a healthy culture” by identifying health issues with the aim of practicing “health-focused operations”, and promoting measures that maintain and improve the physical and mental health of employees and improve health literacy.
  5. In its entire business activities, the Company will appropriately consult workers and their representatives about safety and health initiatives, assisting them in participating in these initiatives.
  6. Valuing needs and expectations of stakeholders in mutual communication with them, the Company will contribute to the enhancement of the level of social safety and health management.

April 1, 2023
Nobuo Hayasaka, President and Chief Executive Officer,
KIOXIA Corporation

  • *1 The scope of this policy covers the KIOXIA Group in Japan.
  • *2 ”each worker” includes all those, regardless of role, involved in all aspects of KIOXIA’s business; this includes contract employees, subcontractors, suppliers and business partners.

Promotion of OHS

KIOXIA Group in Japan has deployed health and safety supervisors within the Human Resources and Administration Division of each group company to support OHS activities among employees. Periodical reports on the health and safety of employees are also made to the President and CEO and Executive Officer in charge of human resources. 

OHS Management Structure of KIOXIA Group in Japan

OHS Management Structure of KIOXIA Group in Japan OHS Management Structure of KIOXIA Group in Japan

OHS Management System

KIOXIA Group acquired occupational health and safety management systems certification (ISO 45001:2018) in January 2021. This system provides a framework for the identification and assessment of organizational health and safety issues; it also raises the profile of these, and ensures continuous improvements are made in order to reduce the risk of non-compliance with any relevant legislation.
KIOXIA Group is also committed to ensuring safety management throughout the day-to-day activities of our organization and our employees.
Our efforts include the creation of small workplace groups which undertake a variety of activities on an ongoing basis; these encompass workplace improvement programs, education and training to increase risk awareness among employees, and monitoring to ensure that appropriate practices are being followed.

Acquisition of ISO 450001:2018 certification

* Table can be scrolled horizontally.

Name of company

Certified body

Certificate expiry date

Approval certificate No.

Kioxia Corporation
Kioxia Systems Corporation
Kioxia Iwate Corporation

JACO: Japan Audit and Certification Organization for Environment and Quality

March 28, 2025


Solid State Storage Technology Corporation


November 23, 2024


Health and Safety-Related Initiatives (FY2021)

* Table can be scrolled horizontally.



Health and Safety

  • Planning and implementation of promotional plan based on OHS Policy
  • Health and safety awards
  • Business site OHS committees, workplace OHS meetings
  • Internal audits and external certifications
  • Periodical reports to the President and CEO

Safety only

  • Risk assessment to identify sources of danger and steps that can be taken to mitigate those risks
  • Safety reviews when installing or modifying equipment
  • Operation of specialist internal safety committees
  • Sharing of information and holding discussions with labor unions and on-site subcontractors

Health only

  • Thorough implementation of health measures in full compliance with relevant legislation
  • Promotion of measures to prevent health problems caused by passive smoking
  • Measures to combat brain, heart and lifestyle-related diseases
  • Measures to improve mental health
  • Health management for those posted overseas or on business trips
  • Promotion of activities to support workplace engagement*3 and workplace energization
  • Measures to prevent the spread of diseases
  • *3 Workplace engagement: having a positive and fulfilling attitude toward work.

OHS Awareness Raising and Education

OHS Education

KIOXIA Group in Japan endeavors to enhance our employees' OHS understanding and skills. On top of the training specified by the Industrial Safety and Health Act, we implement education programs for employees who are newly appointed to OHS-related posts, as well as for mid-career employees in OHS-related positions. We also run practical training programs devised by each operational site.

Key OHS Training Results (FY2021)

* Table can be scrolled horizontally.

Type of Training

Ratio of participation:No. of Participants/ No. of Eligible Employees

Training related to job promotion (OHS)

100% (234/234)

Mental health training

100% (14,075/14,075)

Post-recruitment training (OHS, road safety, etc.)

100% (2,546/2,546)

Various types of training based on the Industrial Health and Safety Act
(for workplace managers, health supervisors, covering the use of industrial robots, safety equipment, etc.)

100% (2,413/2,413)

Competence training
(OHS promotion committee members, risk assessors, internal auditors, etc.)

100% (741/741)

Each work site also conducts its own training in addition to the activities listed here.

Workplace Accidents

KIOXIA Group in Japan strives to minimize the number of workplace accidents and monitor any occurrences. We use the “frequency of injuries resulting in lost working days” as an indicator for these efforts. In FY2021, the frequency rate was 0.30, which was below the average rate of 0.52 in the electric machinery and equipment manufacturing industries.

KIOXIA Group in Japan will continue to implement further measures to prevent workplace accidents. In particular, we will prioritize the reduction of hazardous risks that could lead to illness or serious injury and conduct risk assessments of all workplaces and tasks. Leveraging the results of these assessments, we identify current and potential risks, review work methods, and systematically deploy any necessary measures to minimize and eliminate such risks. Furthermore, we are improving facilities and provide comprehensive OHS training for all employees.

Frequency of Injuries Resulting in Lost Working Time*4 at KIOXIA Group in Japan

Frequency of Injuries Resulting in Lost Working Time at KIOXIA Group in Japan Frequency of Injuries Resulting in Lost Working Time at KIOXIA Group in Japan
  • *4 Frequency at business sites of KIOXIA Group in Japan (manufacturing, non-manufacturing, R&D).
  • Frequency = number of casualties due to work-related accidents / total actual working hours x 1 million.
  • Figures for all industries and the electrical machinery and equipment manufacturing industries collated from the respective “Survey of Industrial Accidents” conducted each year by the Ministry of Health, Labor and Welfare.