Environmental data

Environmental data(Non-consolidated) Environmental data(consolidated) Third-party assurance on environmental data(2022 edition) Third-party assurance on environmental data(2021 edition) Third-party assurance on environmental data(2020 edition) Third-party assurance on environmental data(2019 edition)

Environmental data(Non-consolidated)

1. Includes overseas activities (overseas construction, overseas offices) in addition to domestic activities (domestic construction, domestic offices).
2. Third-party certification obtained from SOCOTEC Certification Japan Co., Ltd.
3. Includes only domestic construction.
4. Mixed waste rate (%) = mixed waste amount (t) / total waste amount (t)
5. Green purchase rate (%) = expenditures on green items / construction costs
6. Electronic manifest usage rate (%) = number of electronic manifests / (number of electronic manifests + number of paper manifests)

Environmental data(consolidated)

1. In addition to Kumagai Gumi, consolidated subsidiaries include Gaeart Co., Ltd., Technos Co., Ltd., K & E Co., Ltd., Techno-Space Creates Co., Ltd., FATEC Co., Ltd., Technical Support Co., Ltd., and Taiwan Kumagai Co., Ltd.
2. Third-party certification obtained from SOCOTEC Certification Japan Co., Ltd.