Data

Environmental data

Environmental data

1. Changes in major environmental data

Independent practitioner's assurance

Item FY2021 FY2022 FY2023 FY2024 FY2025 Unit
Scope1 CO2 emissions 109 113 93 80 83check thousand t
Scope2 CO2 emissions 352 350 250  250 219check thousand t
Scope1+2 emissions 461 464 342 330 302check thousand t
Scope3 CO2 emissions 30,893 34,271 30,425  28,509 28,241check thousand t
Energy consumption 9,612 9,916 8,291  7,902 4,148check TJ
Renewable electricity use 111.8 145.7 177.5  219.6 259.8check GWh
Renewable electricity ratio 14 17 25  31 36check %
Waste generated 92.7 104.0 72.6  67.5 67.9check thousand t
(Included) Hazardous waste generated - 11.0 8.7  8.3 8.5 thousand t
Water input 3,140 3,081 2,721  2,516 2,762check thousand m3
  • The above figures represent totals for manufacturing sites.
  • From FY2025, the conversion value used to calculate energy consumption from electricity has been changed from the primary energy equivalent value under the Energy Conservation Act to a value based on energy consumed.
  • From FY2025, Scope 1 emissions include GHG emissions other than energy-related CO2 emissions.
  • From FY2025, energy consumption has decreased due to the change in the calorific value used for electricity from 9.304 GJ/MWh to 3.6 GJ/MWh.
  • For the calculation methodology, please refer to “> Calculation Methodology for Key Environmental Data.”
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D-9_全体集計版

 

2. Manufacturing sites

Total manufacturing sites（Japan and overseas）

Item Actual value Unit
Energy consumption Purchased electricity 694 GWh
Light oil, gasoline, et al. 6,296 kℓ
Gas 26,261 thousand m3
LPG 3,571 t
District heating 7 GWh
Steam 2,467 t
Total energy consumption 4,148check TJ
CO2 299 thousand t-CO2
In-house power generation 32 GWh
Water input 2,762check thousand m3
Total waste generated 67,913check t

Japan

Item Actual value Unit
Environmental impact Total CO2 emissions 177 thousand t-CO2
Total NOx emissions 32 t
Total SOx emissions 1 t
Total waste generated 15,271 t
BOD emissions 4 t
COD emissions 7 t
Wastewater discharge 1,941 thousand m3
In-house power generation 17 GWh
Item Actual consumption Converted to calorie equivalents
Value Unit Value Unit
Energy consumption Purchased electricity 357 GWh 1,286 TJ
Heavy oil A 721 kℓ 28 TJ
Kerosene 866 kℓ 32 TJ
Light oil 2,882 kℓ 109 TJ
City gas 6,966 thousand m3 290 TJ
LPG 2,734 t 137 TJ
Gasoline 136 kℓ 5 TJ
Biomass, solar power -   104 TJ
Total     1,991 TJ
Water input Groundwater 1,981 thousand m3   TJ
Rainwater, etc. 3 thousand m3   TJ
Municipal water 198 thousand m3   TJ
Total 2,182 thousand m3   TJ
  • *1 Total waste generated is the sum of the amount recycled and the amount disposed of.
  • *2 In-house power generation includes electricity sold.

Overseas

Item The Americas actual value Europe actual value Asia actual value Unit
Energy consumption Purchased electricity 133 35 168 GWh
Light oil, gasoline, et al. 583 261 847 kℓ
Gas 8,693 3,715 6,885 thousand m3
LPG 324 0 513 t
District heating - 5 2 GWh
Steam - - 2,467 t
Total energy consumption 865 310 982 TJ
CO2 23 9 91 thousand t-CO2
In-house power generation 2 3 10 GWh
Water input 123 57 402 thousand m3
Total  waste generated 26,514 8,070 18,057 t
  • *1 Total waste generated is the sum of the amount recycled and the amount disposed of.
  • *2 In-house power generation includes electricity sold.

Scope 2 CO2 emissions (Total manufacturing sites: Japan and overseas)

Standard CO2(thousand t）
Location-based 297check
Market-based 219check
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D-11_by Region_Non-manufacturing Divisions_ Komatsu Customer Support

 

3. Sales and after-sales sites

Komatsu Customer Support Japan Ltd.

Location Shirokane, Minato-ku, Tokyo
Activities Sale, service and rental of construction equipment and forklift trucks
Number of bases 135
Number of employees 4,027
Data of ISO14001 certification acquisition May 2018
Item Actual value Unit
Environmental impact Total CO2 emissions 6.8 thousand t-CO2
Total waste generated 10,780 t
Amount recycled 9,619 t
Recycling rate 85.7 %
Item Actual consumption Converted energy value
Value Unit Value Unit
Energy consumption Electricity 11.5 GWh 41.5 TJ
Heavy oil A 130 kℓ 5.0 TJ
Kerosene 343 kℓ 12.6 TJ
Light oil 52 kℓ 2.0 TJ
Gasoline 5 kℓ 0.2 TJ
LPG 11 t 0.6 TJ
City gas 52 thousand m3 2.1 TJ
Total     63.8 TJ
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D-12_Non-manufacturing Divisions　データ

 

4. Other sites

Non-Production Site Data

Sites included Head Office, Manda area, Field Testing Department, Techno Center, General Training Center, and six recreation facilities
Item Actual value Unit
Environmental impact Total CO2 emissions 3.1 thousand t-CO2
Item Actual consumption Converted to calorie equivalents
Value Unit Value Unit
Energy consumption Purchased electricity 4.7 GWh 16.9 TJ
Kerosene 20 kℓ 0.7 TJ
Light oil 274 kℓ 10.4 TJ
LPG 79 t 4.0 TJ
Gasoline 1 kℓ 0.0 TJ
Total 32.0 TJ
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