Sustainability at the MITSUBA Group

Corporate Philosophy

The corporate philosophy represents the basic concept of all corporate activities, and MITSUBA's strategies, plans, various systems, business activities, etc., are all built under the corporate philosophy. MITSUBA places the “Mission Statement" that constitutes this corporate philosophy as its philosophy on Corporate Social Responsibility (CSR).
MITSUBA Group aims to be a company that meets the expectations of the society and is trusted by putting its philosophy into practice.

- Mission Statement (CSR Policy) -
Together with those who support it,
MITSUBA will provide pleasure and peace of mind to the people of the world
by creating technology in harmony with society and the environment.
- Management Policy -
*We will make MITSUBA the brand of choice on a global scale.
*We will use our technology as a driving force to take up the challenge of creating new markets.
*MITSUBA will bring out the best in its associates, as its associates bring out the best in MITSUBA.
- Guidelines for Action -
Vision Challenge Speed

Codes of Practice

We express our stance as a code of practice so that we can be the most trusted by all of our stakeholders, including our customers, employees, suppliers, shareholders/investors, local communities, etc. who support the activities of MITSUBA Group. We believe that having each and every one of us understand the spirit of the Group Code and faithfully comply with it will lead to greater transparency as a company and the trust of our customers.


The MITSUBA WAY consists of codes of practice based on the understanding, thoughts, decision-making, and actions of each and every MITSUBA Group employee during his/her daily work activities. MITSUBA's DNA, which MITSUBA has held since its founding as a manufacturing company, consists of three core values: "Creating a Vision," "Challenging Spirit," and "Skill and Speed." These three core values are further divided into eight domains.


How We Should Act

The "How We Should Act" details the CSR activities that each MITSUBA Group employee should practice in his/her daily work in order for MITSUBA Group to respond to society’s expectations and build a trustworthy business. To ensure we respond to society’s expectations and are a trustworthy business, MITSUBA has established the items in "How We Should Act".

Corporate Ethics

(1) Health and safety
I will strive to create a safe and healthy working environment for the peace of mind of each individual member of MITSUBA Group.
(2) Protecting human rights
To ensure that MITSUBA Group is a discrimination-free workplace, I will accept the differences of people and personalities of the world over, and act fairly toward each and every person.
(3) Environmental protection
Because MITSUBA Group is actively involved in environmental protection, I will act in accordance with MITSUBA Environmental Declaration.
(4) Traffic safety
Because MITSUBA Group is a leading business in promoting traffic safety, I will abide by traffic laws and drive safely.
(5) Information protection
I will pay strict attention to careful management of internal and external information held by MITSUBA Group.
(6) Fair and wholesome transactions
To ensure that MITSUBA Group is a business that maintains fair and wholesome relationships with its customers and clients, I will ensure that transactions are fair and wholesome.
(7) Eradicate connections with antisocial agents
I will not be involved with antisocial agents, affiliated persons or companies that affect the order and safety of society.
(8) Communication
Because MITSUBA Group is a company with a high level of transparency, I will strive to maintain appropriate communication.
(9) Social contribution
Because MITSUBA Group is a company that “Fulfills its role as a member of society,” I will actively engage in activities that contribute to the society.


(1) Correct understanding of laws and regulations
Along with correctly understanding and abiding by the content and spirit of relevant laws and regulations, I will keep up with amendments and deal with them appropriately.
(2) Measures when laws, regulations, or in-house regulations are unclear.
When laws, regulations, or in-house regulations are unclear, I will consult with MITSUBA legal department, government agencies, or external experts in order to ensure correct understanding.
(3) Measures when laws, regulations, or in-house regulations have been violated.
If actions are discovered that violate or could violate laws, regulations, or in-house regulations, I will report to and confer with my superior and the head of the General Affairs Department, or MITSUBA Comprehensive Consultation Desk.
(4) Reporting to and notifying government agencies
I will make the appropriate reports and notifications to the government agencies as required by relevant laws and regulations.

Diagram showing the correlation among our Corporate Philosophy, the “MITSUBA WAY,” and Actions MITSUBA takes

Engagement with Stakeholders

MITSUBA Group's business has relationships with stakeholders such as customers, employees, suppliers, shareholders/investors, and local communities. Based on our mission statement, we respect two-way dialogue with all stakeholders involved in our business and carry out various activities to "provide pleasure and peace of mind."

Examples of Communication with Stakeholders

Target Description Frequency
Customers Collaboration to realize customer policy Daily
Cooperation in surveys, etc. related to sustainability Daily
Employees Explanation of performance, policies, and strategies by the president and vice president (Management Policy Meeting) Twice a year
Internal communication through employee-only sites, etc. Daily
Explanation of business results, policies and strategies (financial result meetings, etc.) Twice a year
Explanation of performance and policies/strategies (individual visits) 4 times a year
Plant visits, business explanations, etc. (plant visits) About once a year
Providing information through sustainability reports and corporate websites Daily
Suppliers Co-creation with suppliers (productivity improvement activities) Daily
MITSUBA Group CSR Purchasing Policy Explanation (Purchasing Policy Briefing) About once a year
Local community Environmental volunteers such as forest maintenance and beautification activities Daily
Participation in local events Daily

Sustainability Promotion System

Through the “ESG Committee”, MITSUBA Group confirms priority issues related to sustainability, and promotes and controls appropriate operations. We also confirm and improve the status of MITSUBA Group’s compliance with laws and social norms. Furthermore, we analyze and evaluate possible losses and crises in MITSUBA Group and implement control for responses. We have set up committees for problem solving in each area, which have experts working in each field.

ESG Committee

The MITSUBA Group holds an ESG meeting chaired by the Vice President and Executive Officer four times a year. The MITSUBA Group sets social issues that the MITSUBA Group should particularly focus on solving priority issues, clarifies its goals, and monitors its progress. The members of the committee include MITSUBA Directors, Executive Officers in charge of Finance, Executive Officers in charge of Production, and those in charge of CSR-related departments. Directors who are members of the Audit & Supervisory Committee and the Head of the Internal Auditing Department also participate as observers. Furthermore, we have established a system in which matters related to sustainability information disclosure, which were discussed at the ESG Committee, are tabled at the Management Committee, and is also reported to the Board of Directors.

At the ESG committee, the following are discussed:

Activities in FY2022 (Main Agenda)

May 2022
1st session in 2022
- Discussion of ESG meeting annual activity plan
- Progress report on health management promotion, etc.
August 2022
2nd session in 2022
- Results report on ESG third-party evaluation
- Results report on sustainability management system audit at group locations, etc.
November 2022
3rd session in 2022
- Identification of materiality (important issues)
- Progress report on BCP activities, etc.
February 2023
4th session in 2022
- Proposal of sustainability promotion plan
- Discussion regarding Dechlorane Plus (flame retardant) switching policy, etc.

Sustainability Promotion Framework

Each MITSUBA Group company has a framework in place to achieve its CSR policy. Business sites formulate action plans for achieving the decisions of the “ESG Committee”, achieving the MITSUBA Group goals, and solving problems unique to each site. The sites also evaluate and provide feedback on the status of achievement.

Effectiveness Evaluation of Management System

At MITSUBA, a check sheet is used to periodically (once a year) evaluate the effectiveness of our sustainability activities. Additionally, our sustainability management system is evaluated by a third-party organization periodically (once a year), and we strive to maintain and improve our sustainability activity system.

Furthermore, based on group standards related to sustainability, we conduct self-assessments of the effectiveness of the sustainability management systems of each MITSUBA Group company. If we determine that the self-assessment results are insufficient, we will conduct an audit in each MITSUBA Group company to confirm the current situation and propose improvements. We will continue to strive to reduce risks by conducting continuous monitoring and proposing improvements.

Materiality (Important Issues)

In order to increase corporate value and grow sustainably, MITSUBA Group has considered the importance of various social issues from the perspective of both the MITSUBA Group's business and stakeholders and has also identified materiality (important issues).

Materiality Identification Process

  Materiality (Important Issues)
Solving social issues through business Creation of new value products for the next generation centered on electrification
Provision of safe and secure products
Contribution to the realization of a carbon-neutral society
Efficient use of resources
Reduction of use of hazardous substances
Basics of business activities Strengthening of Group Management Governance
Maximization of human capital
Increase of job satisfaction
Industrial safety and health
Strengthening of information security
Risk management
Sustainable purchasing

Sustainability Promotion Goals

MITSUBA Group has set annual goals to resolve materiality (important issues) related to sustainability. Related departments and committees formulate measures to achieve the goals, incorporate them into concrete plans, and monitor progress at ESG meetings, leading to steady promotion and improvement of initiatives.

Theme Related Materiality FY2023 Goal
Promotion of carbon neutrality Contribution to the Realization of a Carbon-neutral Society Planning and promotion of measures to achieve 6.0% absolute Group CO2
emissions compared to FY 2018
Sustainable resource saving Efficient Use of Resources Waste recycling rate of 90% or more
Strengthening of product control substance management system Reduction of Use of Hazardous Substances Management system evaluation based on industry standards: 3.5 points or more
Promotion of diversity Maximization of Human Capital Improving the employment rate of PWDs and promoting the acceptance of overseas human resources
Improvement of employee engagement Increase of Job Satisfaction Complete setting of priority initiatives based on survey questionnaire
Promotion of accident prevention activities in the workplace Occupational Safety and Health Zero lost-time injuries and 8 or less non-lost-time injuries
Strengthening of information security management system Strengthening of Information Security Establishment and full-scale operation of the Computer Security Incident Response Team (CSIRT) system
Anti-corruption activities at Group sites Compliance Complete understanding of the current status of overseas Group key sites
Promotion of BCP Risk Management Complete deployment of BCP structures and regulations to domestic and overseas sites
CSR development for business partners Sustainable Purchasing Conduct CSR assessments for suppliers