Communication
Promoting Environmental Communication
We are actively working to communicate with local communities by delivering on-demand lectures on environmental topics.
Cooperating with the Supply Chain and Stakeholders
Collaboration with partner companies
Kajima's supply chain consists principally of partner companies that work with us at construction sites. At Kajima construction sites, we strive to reduce CO2 emissions with partner companies through efforts such as programs that train workers to operate heavy machinery with less fuel. We also hold an annual event to present model cases submitted by partner companies across Japan so that we can spread excellent ideas nationwide.
Among our partner companies, we ask our Group companies to report their energy consumption. We then report the obtained data to management at the Environmental Committee and other meetings. We are discussing consumption reduction measures in detail with companies that have particularly high CO2 emissions.
Participation in environment-related initiatives
Japan Federation of Construction Contractors
The Japan Federation of Construction Contractors, an industry group consisting of 140 domestic general contractors (as of December 2024), aims to help the construction industry solve many different problems, advance technology, and promote business improvement. It sets up a committee for each issue to be solved. With regard to environmental issues, it contributes to creating a sustainable society through the efforts at the Environment Committee to comply with environment-related laws and regulations, reduce environmental impact, and protect the environment. The measures to be implemented are compiled into “the Construction Industry Voluntary Action Plan on the Environment” every five years since in 1996, and the results of these activities are also published.
Kajima serves as Vice Chair and a Representative Director of the Federation, and leads the industry’s activities by proactively participating in the Environmental Management Sub-committee (Vice Chair), Global Warming Response Sub-committee, Construction By-product Sub-committee (Chair), and Biodiversity Sub-committee of the Environmental Committee. Sub-committees have been producing results useful for helping the whole industry reduce its environmental impact. These include fuel-saving driver training, studies on CO2 emission studies, formulation of the “Bio-Diesel Fuel Usage Guidelines,” compilation of the “Construction Waste Q&A,” and more.
Japan Association of Technologies for Climate Change
The objective of this organization is to contribute to the creation of a decarbonized society by collaborating and cooperating with the national and local governments to survey, research, develop, and promote climate change technologies. The Association comprises 26 member companies from a wide range of industries including construction, engineering, and consulting.
Kajima serves as a Director and the Steering Committee Chair. It promotes the implementation of decarbonization technologies in society through decarbonization policy recommendation, technical exchanges among members, seminars featuring experts, and the like.
minato eco-conscious consortium (mecc)
Companies based in Minato City, Minato City residents, and the city government worked together and launched mecc in 2006 to create and send out information on the new environmental preservation activity “Minato Model.” Currently, there are 56 member companies.
As an Executive Board member, Kajima participates in planning and managing the Corporate and Environment Exhibition and mecc EXPO. These events provide opportunities for city residents and companies to interact, and feature various types of seminars that contribute to fostering environmental awareness and promoting environmental improvement activities familiar to city residents.
Activities of other environment-related external groups and committees
- Member of the Keidanren Committee on Environment
- Member of the Vision Roadmap Study Working Group and CE Information Distribution Platform Development Working Group, Circular Partners (CPs)
- Member of the International Standardization Strategy and Value Chain Circularity Indicator Development Committee
- Japan Business and Biodiversity Partnership
- Eco-First Promotion Council
- Ministry of Land, Infrastructure, Transport and Tourism “River-Basin Flood Management Official Supporter”
- Japan Business Initiative for Biodiversity (JBIB)
Management of the supply chain environmental impact
In the Conduct Guidelines for Business Partners ‘(10) Environmental Friendliness,’ the Kajima Group stipulates in its procurement policy, while taking into account the impact on local communities and biodiversity, that “business partners must promote efficient energy use and use of renewable energy throughout their business activities as well as product and service lifecycles in order to reduce the impact of greenhouse gas emissions on climate change.” The Kajima Group provides these Guidelines to suppliers and asks that they reduce their environmental impact.
Cooperating with Local Communities
At Hayama Marine Science Laboratory (Zushi City, Kanagawa Prefecture), the Kajima Technical Research Institute has been working to restore eelgrass meadows (sometimes called the cradles of the sea) for 15 years or more in cooperation with local primary schools, the fishery cooperative association, and nonprofit organizations.
