We foster a sustainable society with a low carbon footprint, a commitment to recycling,
and a deep respect for the natural world.

Environmental Policy and Vision

Obayashi Environmental Policy


As a good corporate citizen, Obayashi considers active efforts and continuous improvement of environmental issues to be integral components of business management. We envision our future society, seeking to contribute to a realization of sustainable society.


  • 1 We strive to protect the environment, acting in full compliance with all environmental statutes and ordinances, communicating with local communities.
  • 2 We gather our knowledge for realization of resilient society that integrates the elements of low-carbon, recycling-oriented and respecting the natural world.
  • 3 We use the expertise we have acquired through our environmental protection activities, developing even more effective technologies and implementing new businesses to realize sustainable society.

We sincerely focus on our business, with our affiliates, subcontractors and suppliers, holding targets and vision to realize a sustainable society.

Established March 1, 2018
President Kenji Hasuwa

Obayashi Sustainability Vision 2050

We established our medium- to long-term environmental vision, Obayashi Green Vision 2050, in 2011 and worked to promote the renewable energy business and take other steps to create an environmentally friendly society. We have now updated this vision to Obayashi Sustainability Vision 2050 (hereafter, "new Vision") to develop it further. This update of the vision adopts the changes in various social trends and the business environment surrounding the Obayashi Group. The new Vision incorporates our efforts in ESG management and initiatives that will contribute to achieving the Sustainable Development Goals (SDGs). We hereby declare that we will simultaneously pursue sustainability of the planet, community, and people, and of the Obayashi Group.

Overview of Obayashi Sustainability Vision 2050

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Environmental Management

Environment Management System (EMS)

We have developed and are operating a company-wide environmental management system (EMS). By 1999, we had obtained ISO 14001 certification for our EMS at all sites.

EMS Organizational Structure

The CSR Committee, chaired by the president, determines the basic policies, measures and other matters with respect to our overall environmental activities. Based on the decisions of the CSR Committee, an Environmental Management Officer establishes, implements and maintains the EMS of the Head Office and principal branches in Japan. Each domestic principal branch has an Environmental Management Secretariat and Supervisor. In addition to promoting environmental activities, the secretariats and supervisors exchange opinions regarding EMS at meetings of the Branch Environmental Supervisors' Committee, held every six months.

Operating Status

We continuously improve our EMS by appraising and evaluating the achievements of environmental activities each year, and updating the objectives and targets for activities in the years that follow.

Compliance with Environmental Laws and Regulations

A construction business must comply with numerous environmental laws and regulations. We have a structure in place, with environmental compliance specialists nationwide in Japan, to ensure compliance with these laws and regulations.

Assignment of Environmental Compliance Specialists
We have an environmental compliance structure based on environmental compliance specialists, assigned to the Head Office and principal branches throughout Japan. These specialists field inquiries on environmental compliance from our construction sites and other frontline operations.
Environmental Law Inquiry Desk
We have a system in place whereby an environmental law inquiry desk staffed with specialists who address inquiries both basic and technical on environmental compliance from our employees. This service is located within the Environment Department in our Head Office.
Environmental Compliance Checklist
We collate an ongoing Environmental Compliance Checklist summarizing environmental laws and regulations for our construction offices and front lines to comply with. This checklist is meant for promptly and properly addressing environmental compliance on the construction site.
Environmental Compliance Digest and Other Publications
Material content from the questions our environmental law inquiry desk staff answer are published the Environmental Compliance Q&A Flash Report and Environmental Compliance Digest for dissemination throughout our organization.
Environmental Compliance Workshops
Our environmental compliance staff attend workshops on the relevant laws and regulations twice a year. We also provide annual workshops for our construction office and other employees who must take charge of environmental compliance on the front lines.

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Environmental Education

Environmental Training

We provide an entire curriculum of training segmented by career and job category to enhance the effectiveness of our environmental activities. The curriculum is also vital in preventing serious mishaps arising from insufficiently shared knowledge and awareness of our important environmental objectives among employees.

Environmental Awards

The Obayashi Environmental Award program commends environmental activities of noteworthy achievement, or that serve as examples for the entire Group. The award program is meant to raise employee awareness in environmental fields, and bolster environmental initiatives in business operations

Supply Chain Initiatives

Supply chain initiatives are also an indispensable part of promoting environmental consideration in our business activities.

CSR Procurement

We established a set of Obayashi Group CSR Procurement Guidelines for all suppliers in June 2011 to steadily further civic responsibilities in the Group's supply chain.

Green Procurement

We have green-procurement guidelines in place for office supplies and construction materials and machinery, and are promoting the procurement of technologies, construction methods and products with low environmental impact in all business activities.

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ESG Bonds

Obayashi Green Bond

Obayashi Corporation has issued Obayashi Green Bond (Obayashi Corporation's 23rd Series of Unsecured Bonds) through a public offering in the Japanese domestic bond market. Green bonds are any type of bond instrument issued by companies, local governments, or other organizations where the proceeds will be exclusively applied to eligible green projects and which are aligned with the Green Bond Principles (International Capital Market Association) and/or the Green Bond Guidelines (Ministry of the Environment, Japan).

Obayashi Sustainability Bond

Obayashi Corporation has issued Obayashi Sustainability Bond (Obayashi Corporation's 24th Series of Unsecured Bonds) through a public offering in the Japanese domestic bond market.

Sustainability bonds are bonds issued in accordance with the Green Bond Principles, Social Bond Principles, and Sustainability Bond Guidelines of the International Capital Market Association (ICMA), and/or the Green Bond Guidelines of the Ministry of the Environment, Japan. It is intended to raise proceeds for projects that address or solve specific social issues, achieve positive social outcomes (social project), or contribute to environmental sustainability including climate change (Green Project).

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We implement comments and requests from stakeholders into our business activities in order to respond to expectation from the society.

Main Environmental Organizations in which we Participate (As of FY2018.3)

  • Sustainability Science Consortium (SSC)
  • Green Energy Partnership
  • Network for Sustainability Communication (NSC)
  • Keidanren Committee on Nature Conservation
  • Yamashina Institute for Ornithology
  • Japan Smart Community Alliance (JSCA)
  • Minato eco-conscious consortium (mecc)
  • Platinum Society study Group
  • Green Building Japan(GBJ)
  • Promotion Association for Smart Society Technology

Global Warming Report

It is an obligation in Tokyo to submit a report including status of energy saving initiatives of each office, when energy emission, such as electricity, gas, fuel, of total offices in Tokyo exceeds 3,000kl per year converted to crude oil. We submit our report to the Tokyo Metropolitan Government Bureau of Environment due to this system, and it can be found on their website.

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Environmental Data

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