Development of a responsible supply chain

Tanseisha Group Sustainable Procurement Policy

1. Compliance with laws and regulations and respect for social norms
   We will comply with the laws and regulations applicable in the countries and regions in which we conduct business, and will respect social norms.
2. Fair and impartial trading
   We will take a fair and impartial approach to transactions, provide a wide range of trading opportunities, and make selections based on economic rationality by comprehensively evaluating safety, technical capabilities, price, delivery time, environmental friendliness, business situation, etc.
3. Thorough corporate ethics
   We will conduct procurement activities with the highest ethical standards.
4. Maintenance and improvement of occupational safety and health
   We will establish a system for managing safety and health, proactively ensure safety, including by third parties, and improve the working environment, striving to maintain and improve safety and health.
5. Ensuring quality and safety
   For all services, we strive to understand customer needs and ensure appropriate quality as well as safety and security.
6. Respect for human rights
   Based on the Tanseisha Group Human Rights Policy, we respect basic human rights throughout our supply chain.
7. Environmental Considerations
   We are committed to protecting Environmental Consideration and reducing the burden on the environment through all of our corporate activities, including Environmental Consideration in spatial creation, such as eco-conscious design and reducing industrial waste generation, and will contribute to the realization of a decarbonized, symbiotic society and a circular economy.
8. Protection and respect of intellectual property rights
   We respect and protect the legitimate intellectual property rights of third parties.
9. Ensuring information security
   We will endeavor to ensure information security by taking into consideration the protection of personal information, confidential information, and customer information related to our business.
10. Contribution to Society
    We will utilize our management resources to engage in activities that contribute to the development of the local community and society.
11. Responding to disasters and other unforeseen circumstances
    We will prepare for large-scale disasters and other unforeseen circumstances during peacetime by establishing a risk management system and developing a business continuity plan, and will actively support and cooperate in the recovery and restoration efforts in the event of a disaster.

Established on August 1, 2019
Revised on February 1, 2025
President and Chief Executive Ofcer Osamu Kobayashi

Tanseisha Group Sustainable Procurement Guidelines

1. Compliance with laws and regulations and respect for social norms
   We will comply with the laws and regulations applicable in the countries and regions in which we conduct business, and will respect social norms.
   1. We will comply with all domestic and international laws and regulations (Construction Business Act, Subcontract Act, Personal Information Protection Act, Copyright Act, Environmental Protection Act, Labor Act, etc.) that govern our business activities, and respect social norms.
   2. We have established an internal reporting system for our employees and partner companies, and will thoroughly protect the confidentiality and rights of whistleblowers, and use the content of reports to improve corporate behavior.
2. Fair and impartial trading
   We will take a fair and impartial approach to transactions, provide a wide range of trading opportunities, and make selections based on economic rationality by comprehensively evaluating safety, technical capabilities, price, delivery time, environmental friendliness, business situation, etc.
   1. We will conclude business agreements in accordance with fair and transparent procedures, including receiving appropriate quotations and entering into written contracts before construction begins.
   2. When conducting business, we select suppliers based on a comprehensive evaluation of factors such as cost competitiveness, quality assurance, reliability of delivery dates, technical capabilities, financial strength, social credibility as a company, consideration for social issues such as the environment and human rights, and business performance.
   3. In transactions, we prohibit the abuse of a dominant bargaining position, such as seeking unfair benefits or preferential treatment, and refrain from any actions that impede transparency and free competition, conducting transactions on an equal footing.
   4. We will disclose corporate information, including management details, business activities, and sustainability activities, voluntarily, in a timely and appropriate manner, and promote communication with a wide range of stakeholders.
3. Thorough corporate ethics
   We will conduct procurement activities with the highest ethical standards.
   1. We will reject all ties with antisocial forces and will firmly refuse any unreasonable demands.
   2. We will maintain transparent and healthy relationships with all stakeholders and will not engage in any unethical acts, including bribery, extortion, embezzlement, or other corrupt practices.
4. Maintenance and improvement of occupational safety and health
   We will establish a system for managing safety and health, proactively ensure safety, including by third parties, and improve the working environment, striving to maintain and improve safety and health.
   1. Promotes a safe and clean working environment.
   2. We strive to create a comfortable working environment where everyone can work safely and in good health, both physically and mentally.
   3. We will promote disaster prevention activities and strive to prevent workplace accidents.
5. Ensuring quality and safety
   For all services, we strive to understand customer needs and ensure appropriate quality as well as safety and security.
   1. By providing optimal construction work and related services, we ensure the quality of the construction objects (strength, functionality, durability, precision, workmanship, etc.) and the quality of the construction process that our customers require.
   2. We will strive to independently and continuously improve our technological capabilities in order to improve the quality of our technologies and services to resolve environmental and social issues.
   3. We will comply with relevant laws and regulations when improving the working environment and prevent damage to workers' health.
   4. We will thoroughly prevent health hazards to facility and space users through appropriate equipment planning, material selection, and construction method considerations.
   5. If any quality-related accidents or defects occur, we will promptly report them and take appropriate measures.
6. Respect for human rights
   Based on the Tanseisha Group Human Rights Policy, we respect basic human rights throughout our supply chain.
   1. We will comply with and respect internationally recognized laws and standards regarding basic human rights and labor.
   2. We will not tolerate any discrimination, harassment, or other unfair treatment on the basis of nationality, race, ethnicity, religion, ideology, sex, age, disability, gender identity, sexual orientation, employment status, or any other grounds.
   3. We strive for mutual understanding, respect diversity, individuality and personality, and strive to create a healthy and rewarding working environment.
   4. We respect workers' rights, including freedom of association, the right to collective bargaining, and payment of fair wages.
7. Environmental Considerations
   We are committed to protecting Environmental Consideration and reducing the burden on the environment through all of our corporate activities, including Environmental Consideration in spatial creation, such as eco-conscious design and reducing industrial waste generation, and will contribute to the realization of a decarbonized, symbiotic society and a circular economy.
   1. We will promote the improvement of environmental performance and reduction of environmental impact in spaces toward a carbon-free society.
   2. We will promote 3R activities, including the selection of materials and products to be used, and the development of recycling activities that contribute to the realization of a resource-circulating society.
   3. We will promote efforts to conserve biodiversity and ensure the sustainability of water resources, biological resources, etc., in order to create a society in harmony with nature.
   4. We will promote sustainable procurement and take measures to mitigate risks such as environmental pollution and environmental impacts resulting from our business activities.
8. Protection and respect of intellectual property rights
   We respect and protect the legitimate intellectual property rights of third parties.
   1. We will not engage in any infringing acts such as the improper use or unauthorized use of intellectual property.
   2. We respect the rights of our business partners and treat them appropriately. We do not use our business position to ask for the transfer of rights.
   3. We will provide employees with educational programs to further their knowledge of intellectual property and ensure compliance with laws and regulations.
9. Ensuring information security
   We will endeavor to ensure information security by taking into consideration the protection of personal information, confidential information, and customer information related to our business.
   1. We will properly manage, protect and provide education on personal information, customer information and confidential information to prevent unauthorized or inappropriate use, disclosure or leakage.
   2. We implement defensive measures against computer and network threats to prevent damage related to information leaks.
10. Contribution to Society
    We will utilize our management resources to engage in activities that contribute to the development of the local community and society.
    1. We respect local cultures and customs, and strive to earn the trust of local communities by engaging sincerely with them.
    2. Through our business activities, we contribute to the development of local communities by creating excitement, revitalizing the area, and passing on and promoting history and culture.
11. Responding to disasters and other unforeseen circumstances
    We will prepare for large-scale disasters and other unforeseen circumstances during peacetime by establishing a risk management system and developing a business continuity plan, and will actively support and cooperate in the recovery and restoration efforts in the event of a disaster.
    1. We will continue to have a risk management system in place to prepare for large-scale disasters and strive to maintain our supply chains.
    2. After ensuring the safety of our employees and their families, we will work to preserve Tanseisha's facilities, including worksites, and strive to restore business activities as quickly as possible.
    3. In order to contribute to local communities, we will cooperate with the recovery and reconstruction efforts of national and local governments.