Sustainability Promotion Structure
The Tokyo Seimitsu Group strives to enhance its corporate value while playing an active role in realizing a sustainable society, by forming WIN-WIN relationships with all stakeholders, including customers, shareholders, suppliers, employees, local communities, and the international community, through the business activities that we conduct based on our corporate philosophy: “Growing together with partners and customers by collaborating technology, knowledge, and information to create the world’s No.1 products.” The “Basic Sustainability Policy” is intended for us to meet this mission.
Basic Sustainability Policy
1.
Efforts to address environmental issues
Throughout the entire value chain, including the life cycle of the products we provide, we will contribute to the realization of society that values people and the global environment by working to reduce CO₂ emissions, reduce waste and promote reuse, and protect the global environment, including biodiversity.
2.
Earning the trust of society
We strictly comply with all laws and regulations and conduct business activities in a sincere and fair way to ensure fair competition, stable provision of safe and high-quality products and services that meet customer needs, and appropriate disclosure of product and corporate information, among other things. We also ensure thorough management and protection of the information assets of customers and all other stakeholders involved in our business activities, to earn a high degree of trust from society.
3.
Respect for human rights
We respect the human rights of all stakeholders, including socially vulnerable people, without regard for the attributes of individuals such as gender and nationality. We promote the creation of safe, healthy, and rewarding workplaces where each member of a diverse workforce can demonstrate their capabilities to the utmost.
4.
Human resource development
Employees are the core assets of the Tokyo Seimitsu Group. In order for the Company to create the world’s No. 1 products with its employees, it is necessary for each employee to perform to the best of their strengths as professionals. It is also essential that employees recognize and accept the diverse values of diverse human resources and grow together by bringing the best out of one another. Tokyo Seimitsu offers a suite of in-house programs, including training courses to help employees grow, and creates a work environment that is rewarding to a diverse workforce.
5.
Participation in and contribution to local communities
While contributing to society through our business activities, we are also committed to social contribution activities to address the issues and needs of local communities as part of our effort as a corporate citizen to build healthy and sustainable society. By doing so, we promote the revitalization of local communities and the improvement of the living environment.
6.
Building and running a fair, transparent, and efficient corporate governance system
We consider corporate governance a key management issue for respecting shareholders’ rights, ensuring fairness and transparency in management, and realizing our corporate philosophy. To this end, we implement a quick, appropriate decision-making process and strengthen our supervisory function. We also take initiatives to enhance our corporate governance continuously to increase our corporate value on a medium-and long-term basis and maintain the soundness of our management.
Promotion Structure
The Tokyo Seimitsu Group has the Sustainability Committee, chaired by the Chairman, under the Board of Directors to oversee all of its sustainability activities. This committee has the Management Support Department and Sustainability Department serving as secretariats under the Chief Sustainability Officer (CSO) to promote sustainability activities across the group. In addressing material issues, subcommittees*¹ and response teams collaborate with relevant expert committees, the Human Resources Department, and the General Affairs Department of the related plant.
*¹ Organizations composed of practice-oriented working groups (WGs) and time-bound, problem-solving projects (PJs) designed to facilitate specialized discussion and implementation of specific ESG themes (such as the environment, human rights, and governance).
Sustainability Promotion Structure (as of April 30, 2026)
• The name of the subcommittee "TCFD Response Project" was changed to "Climate Change Response Working Group" in August 2023.
• The name of the subcommittee “Human Rights Activity Project” was changed to “Human Rights Activity Working Group” in April 2024.
• The “Technology” standing team was integrated into the “Climate Change Response Working Group.”
• The “Supply Chain” standing team and the business site-based “Supply Chain Promotion Subcommittee” were integrated into the “Supply Chain Working Group” in July 2023.
• The name of the “Human Capital” standing team was changed to “Human Capital Working Group” in November 2024.
Sustainability Committee
Core team
Committee Chairman
Chairman
Vice-Chairman
President and CEO
Members
Head of Semiconductor Company, Head of Metrology Company, Head of Administration Company and CHRO & CSO
Committee members
Director
【Semiconductor Company】
General Manager of Production, Plant Manager, General Manager of Technology Div., General Manager of Sales Div., General Manager of Quality Assurance Dept., General Manager of Service Div., General Manager of General Affairs Dept., General Manager of Production Control Dept., and Person responsible for environmental management.
【Metrology Company】
Plant Manager, General Manager of Technology Div., General Manager of Sales Div., General Manager of Quality Assurance Dept., General Manager of Metrology Business Promotion Dept, General Manager of General Affairs Dept., General Manager of Production Control Dept., and Person responsible for environmental management.
【Administration Company】
General Manager of Sustainability Dept., General Manager of Public Relations Dept., General Manager of General Affairs Dept., General Manager of Human Resources Dept., General Manager of Legal and Intellectual Property Dept., General Manager of IT Dept.
【Group Companies】
Tosei Engineering Corp., Tosei Box Corp., and Tosei Systems Co., Ltd.
Secretariat
Management Support Dept. and Sustainability Dept.
Observers
External Director
Frequency of meetings
Twice a year
Functions
Formulates basic policies, establishes an operational structure, and sets targets/indicators, reports and provides recommendations during each Executive Officers, Meeting and Board of Directors, Meeting, and monitors implementation of policies/collects various types of information
Description of Activities/Topics Addressed in FY2025
Seventh Meeting of the Sustainability Committee
(held on April 21, 2025)
1.
Reporting and evaluation related to materiality
• FY2024 results/activities
• FY2025 targets/activities
2.
Promotion of information disclosure
• Planning and creation of Integrated Report 2025
• Review of operation of the website’s sustainability section
3.
Strengthening of sustainability activities
• Review of materiality
• Establishment of a foundation for responsible mineral procurement
• Grasp of Scope 3 emissions
4.
Current status and improvement of external evaluation
• ESG evaluation indexes
• Integrated Report assessment
• Feedback from IR activities
Eighth Meeting of the Sustainability Committee
(held on October 29, 2025)
1.
Interim reporting and evaluation related to materiality
• Subcommittee activities (refer to “FY2025 Subcommittees”)
• Activities of teams for responding to important issues
Progress of reductions in CO2 emissions and environmental impact (electricity, water, and paper)
Proper control of chemical substances (SDS update and two patrols per year) and progress in the reduction of chemical substances through the use of alternatives and disposal
Progress in the program for obtaining Healthy Excellent Company gold certification
2.
Status of information disclosure within the Group
• Creation/publishing of Integrated Report 2025
• Updating of the website’s sustainability section
• Issuance of Sustainability Report 2025 (PDF version of the web archive)
• Responses to CDP-Climate Change 2025 and Water Security 2025
3.
Strengthening of sustainability activities
• Expansion of the scope of non-financial information to be collected
(increased collaboration with group companies and suppliers)
• Start of the operation of a supplier communication tool (ASCRet)
4.
Current status and improvement of external evaluation
• ESG evaluation indexes
• Feedback from IR activities
PDCA Cycle Utilized by Teams for Responding to Important Issues and Subcommittees
PDCA Cycle for Sustainability Activities
Each year, the Sustainability Committee comprehensively assesses “objectives, organizations, systems, risks, and opportunities” and incorporates specific activities and goals into a plan (PLAN step of the cycle), which is approved by the Board of Directors and then implemented (DO step of the cycle) by the subcommittees and four teams for responding to important issues. The results associated with each theme addressed are discussed (CHECK step of the cycle) at regular progress management meetings, and continuous improvements as well as plan reviews (ACTION step of the cycle) are repeated as necessary to improve initiatives so that they can be more effective. The results are reported to the Board of Directors.
FY2025 Subcommittees
Climate Change Response Working Group
Leaders
Managing Executive Officer
Members
Semiconductor Company and Metrology Company :
Manufacturing Dept., Quality Assurance Dept., Sales Div., Technology Div., (Semiconductor Company) Service Div., General Affairs Dept., Production Control Dept., and (Metrology Company) Metrology Business Development Div.
Administration Company :
Management Support Dept. and Sustainability Dept.
Period active
2023 to the present
FY2025 results
Strategy and Goals
Social issues caused by climate change and evaluation of the value of our contribution
Establishment and verification of the covered locations and calculation methods for calculating Scope 3 emissions
https://www.accretech.com/en/sustainability/esg/tcfd.html#tcfd_03
Information disclosure
Analysis of, improvement on, and response to the CDP questionnaire and responses to CDP-Climate Change 2025 and Water Security 2025
https://www.cdp.net/en/data/scores#public-scores
(Search by public corporate scores "tokyo seimitsu")
Consolidated CO₂ emissions (Scope 1/Scope 2)
https://www.accretech.com/en/sustainability/esg/date_esg.html
CO₂ Emissions (Tokyo Seimitsu Co., Ltd. (non-consolidated basis and consolidated subsidiaries))
Human Rights Activity Working Group
Leaders
General Manager of Human Resouce Dept.
Members
Semiconductor Company and Metrology Company :
Production Control Dept. and General Affairs Dept.
Administration Company :
Human Resources Dept., Management Support Dept., and Sustainability Department (Supply Chain Team)
Observers
Semiconductor Company and Metrology Company :
Sales Div. and Quality Assurance Div.
Administration Company :
Legal and Intellectual Property Dept. and IT Dept.
Period active
2024 to the present
FY2025 results
Implementation of human rights due diligence and analysis of results
targets: Tokyo Seimitsu, group companies, and suppliers
Education on human rights
new employee training, e-learning for employees, and supplier briefing sessions
Relief mechanism
Establishment of consulting and relief systems for suppliers
Establishment of a human rights risk response system
Supply Chain Working Group
Leaders
Team Leader, Supply Chain Team, Sustainability Dept.
Members
Semiconductor Company and Metrology Company :
Production Control Dept., Quality Assurance Dept., Technology Div., and Sales Div.
Administration Company :
Sustainability Dept. (Supply Chain Team/Environmental Green Initiative Team), Legal and Intellectual Property Dept., and IT Dept.
Period active
2023 to the present
FY2025 results
Promoted sustainable procurement
Held sustainability briefings, Sustainability seminar,execution of the CSR assessment and analysis of results, and participation in the SEMI Japan - Supply Chain Management Working Group*
Increased engagement
Held supplier briefings and development of interactive communication tools
Establishment of a foundation for responsible mineral procurement
Establishment of an internal policy
Trial mineral surveys based on this policy
Grasp of Scope 3 emissions
Establishment of the calculation guidelines
*SEMI Japan - Supply Chain Management WG： A working group under a Semiconductor Equipment and Materials International (SEMI) advisory council in Japan. Its purpose is to create common standardized assessment and evaluation standards across the industry.
Human Capital Working Group
Leaders
General Manager of Human Resouce Dept.
Members
Semiconductor Company and Metrology Company :
Technology Div., Sales Div., Manufacturing Dept., Production Control Dept., Service Div. (of the Semiconductor Company), Metrology Business Development Div. (of the Metrology Company), and General Affairs Dept.
Administration Company :
Human Resources Dept., Public Relations Dept.
Secretariat
Semiconductor Company and Metrology Company :
General Affairs Dept.
Administration Company :
Human Resources Dept., Public Relations Dept.
Observers
Head of Administration Company and CHRO & CSO
Period active
2024 to the present
FY2025 results
Increased engagement
Execution of engagement surveys and planning and hosting of opinion exchange meetings (workshops) for young and mid-level employees
The task of promoting diversity and human resource development has been transferred to the Human Resources Department.
Working Group for Information Disclosure
Leaders
General Manager of Sustainability Dept.
Members
Administration Company :
Public Relations Dept., Sustainability Dept., and Management Support Dept.
Period active
2022 to the present
FY2025 results
Published Integrated Report 2025
Updated the website’s sustainability section/issued the web archive version
Non-financial information management
Held dialogues with ESG evaluation organizations and improved evaluations
Teams for Responding to Important Issues (Standing Teams)
Beneath the Sustainability Committee, we have established three teams (Environment, Quality, and Health and Safety) to handle important issues. The teams focus on priority initiatives in line with sustainability themes, and their members consist of leaders and personnel from the Administration Company, Semiconductor Company, Metrology Company, and subsidiaries of Tokyo Seimitsu Co., Ltd.
Environment・Society・Governance
