Environmental data

Environmental data(Non-consolidated) Environmental data(consolidated) Third-party assurance on environmental data(2024 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)
    The performance of civil engineering and construction work sites in the fiscal year 2025 is not aggregated due to a review of the targets.
  5. Electronic manifest usage rate (%) = number of electronic manifests / (number of electronic manifests + number of paper manifests)
  6. The performance values of the fiscal year 2023 and earlier have been reviewed because the calculation method has been changed to consider the JV ratio since the fiscal year 2024.
  7. The performance values of the fiscal year 2023 and earlier have been reviewed because he calculation method of Scope3_catetory11 has been changed since the fiscal year 2024.

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., Local Energy System Co., Ltd.,KG Dino Resort Co., Ltd.and Taiwan Kumagai Co., Ltd.
  2. Third-party certification obtained from SOCOTEC Certification Japan Co., Ltd.
  3. The CO2 emissions of the affiliated company were estimated based on sales until the fiscal year 2022, and from the fiscal year 2023 onwards, they are calculated based on actual figures.
  4. The performance values of the fiscal year 2023 and earlier have been reviewed because the calculation method has been changed to consider the JV ratio since the fiscal year 2024.
  5. The performance values of the fiscal year 2023 and earlier have been reviewed because he calculation method of Scope3_catetory11 has been changed since the fiscal year 2024.