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Environmental Performance Data

The data marked with "star" (FY Mar/2021) are assured by Deloitte Tohmatsu Sustainability Co., Ltd., an external assurance provider based on International Standard on Assurance Engagements (ISAE) 3000 and ISAE3410.

Independent Practitioner's Assurance Report (PDF 125KB)

Energy Consumption

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Category Scope of coverage Unit FY Mar/2019 FY Mar/2020 FY Mar/2021 External
Assurance
Remarks
Energy Consumption   GJ          
    Non-consolidated Headquarters and all offices in Japan 205,182 202,522 166,307 star  
    Consolidated Subsidiaries 18,700,216 22,788,948 17,148,012 star  
Un-incorporated JVs 24,533,657 20,368,551 24,763,476 star  
    Total   43,439,056 43,360,021 42,077,795 star  
  (Breakdown)              
    Fuels   33,551,624 31,925,022 32,358,474    
    Electricity   8,630,815 10,266,144 9,644,958    
    Steam, Heat, Cold water   1,256,617 1,208,855 74,363    
  Electricity Intensity Non-consolidated Headquarters and all offices in Japan
(per square meter)
Mwh/m2 0.120 0.112 0.070 star  
  Renewable Electricity     kWh 19,692,015 1,717,825 2,199,370    

Greenhouse Gas (GHG)

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Category Scope of coverage Unit FY Mar/2019 FY Mar/2020 FY Mar/2021 External
Assurance
Remarks
Greenhouse Gas (GHG) Emissions   thousand t-CO2e         *1
  Scope1 Non-consolidated Headquarters and all offices in Japan 1 1 1 star  
    Consolidated Subsidiaries 331 390 315 star  
Un-incorporated JVs 2,857 2,907 3,552 star  
    Total   3,189 3,298 3,868 star  
  Scope2 Non-consolidated Headquarters and all offices in Japan 9 8 0 star  
    Consolidated Subsidiaries 368 361 244 star  
Un-incorporated JVs 210 201 224 star  
    Total   587 570 468 star  
  Scope1+2 Total   thousand t-CO2e 3,776 3,868 4,336 star  
  Scope2 Emissions before off-set credit adjustment Non-consolidated Headquarters and all offices in Japan thousand t-CO2e - - 7 star  
  Scope1+2 (before off-set credit adjustment) Total   thousand t-CO2e - - 4,343 star  
  Scope3 Investment Emissions related to our investment thousand t-CO2e - 32,000 35,000   *2
    Transportation Consigned logistics in Japan with Mitsui as the shipper 31 25 21 star  
    Commuting Headquarters 1 1 1    
    Business trips Headquarters 20 20 1   *3
  Scope1 (Break Down) CO2 Carbon dioxide 2,278 2,300 2,487    
    CH4 Methane 908 997 1,378    
    N2O Carbon monoxide 3 1 3    
    HFCs Hydrofluorocarbon 0 0 0    
    PFCs Perfluorocarbon 0 0 0    
    SF6 Sulfur hexafluoride 0 0 0    
    NF3 Nitrogen trifluoride 0 0 0    
  GHG Intensity Non-consolidated Headquarters and all offices in Japan
(per square meter)
t-CO2e/m2 0.08 0.07 0.004 star  
  Credit Details  

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Year Credit Canceled Date Canceled Volume(t-CO2)
FY Mar/2021 J-Credit June 28, 2021 5,332
FY Mar/2021 J-VER June 28, 2021 3,000

*1 [Standards/Guidelines for Scope1+2 calculation] Consolidation : GHG Protocol Control Approach
Measurement : with reference to GHG Protocol "Emission-Factors-from-Cross-Sector-Tools (March2017)," International Energy Agency (IEA) Emissions Factors 2020, IPCC 2006 Guidelines for National Greenhouse Gas Inventories, Act on Rationalizing Energy Use and others
*2 [Scope3 Investment] Estimated values of emissions from mineral & metal resources, energy and thermal power generation businesses not included in Scope 1+2 and other affiliated company businesses using LCA databases (IDEA, Ecoinvent), input-output models, etc.
*3 Flights from / to Japan used by Mitsui's head office officers and employees are included in the calculation. Calculation is based on the distance, CO2 intensity for passenger transportation, seat class coefficient, and radiative forcing index. For the intensity of passenger transportation of international flights we used 86.41 [gCO2 / pkm] which we calculated from the "Annual Report of Air Transport Statistics" of the Ministry of Land, Infrastructure, Transport and Tourism
*The amount of consolidated energy consumption, consolidated Scope1/Scope2, and Scope1 of GHG by gas for FY Mar/2020 has been corrected due to errors found in the calculation

Water Consumption

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Category Scope of coverage Unit FY Mar/2019 FY Mar/2020 FY Mar/2021 External
Assurance
Remarks
Water Withdrawal   thousand m3          
    Non-consolidated Headquarters and Mitsui-owned buildings 64 61 25 star  
    Consolidated Subsidiaries and Un-incorporated JVs 330,906 380,674 358,877 star *4
    Total   330,970 380,735 358,902 star  
  (Breakdown)              
    Industrial water, water utility   10,998 7,618 4,779    
    Pumped groundwater   18,161 17,704 17,560    
    Rivers, lakes   24,577 21,780 15,405    
    Sea   273,034 329,907 316,075    
    Rainwater   3,661 3,379 3,518    
    Others   539 347 1,565    
  Intensity Non-consolidated Headquarters and Mitsui-owned buildings
(per employee)
m3/employee 16.10 15.69 6.47 star *5
Water Discharge   thousand m3          
    Non-consolidated Headquarters and Mitsui-owned buildings 64 61 25 star  
    Consolidated Subsidiaries and Un-incorporated JVs 38,769 32,428 19,281 star *4
    Total   38,833 32,489 19,306 star *6
  (Breakdown)              
    External disposal facilities (sewers)   6,837 6,766 2,096    
    Groundwater   406 390 400    
    Rivers, lakes   6,636 6,400 6,082    
    Sea   19,509 18,563 9,893    
    Others   5,445 370 835    
Water recycling   thousand m3 8,474 7,873 4,706    

*4 [Boundary] Domestic and overseas consolidated subsidiaries and major Un-incorporated JVs
*5 The Intensity for FY Mar/2020 has been revised due to a measurement error
*6 Water discharge volume is assumed to be equal to water withdrawal in case of no discharge data
*The amount of consolidated water withdrawal and consolidated water discharge for FY Mar/2020 has been corrected due to errors found in the calculation

Waste and Paper Consumption

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Category Scope of coverage Unit FY Mar/2019 FY Mar/2020 FY Mar/2021 External
Assurance
Remarks
Waste              
    Waste amount Headquarters and all offices in Japan t 1,220 1,190 956 star  
    Recycling rate   % 81.9 82.2 85.6 star  
    Intensity (per employee) t/employee 0.309 0.305 0.251 star *5
    Hazardous waste Specially-controlled industrial waste t 1.1 1.1 0.4   *7
Pollution Prevention   t          
    NOx Emissions Headquarters 0 0 0    
    SOx Emissions Headquarters 0 0 0    
    VOC Emissions Headquarters 0 0 0    
Paper Consumption              
    Paper consumption Headquarters and all offices in Japan thousand sheets (A4 size equivalent) 38,614 28,778 11,632 star  
    Intensity (thousand sheets per employee) thousand sheets
/employee
9.51 7.18 2.97 star  

*5 The Intensity for FY Mar/2020 has been revised due to a measurement error
*7 Infectious waste discharged from in-house clinic

Environmentally-friendly Logistics

In collaboration with our logistics partners, we implement energy-saving measures including promotion of economical driving practices and other fuel-saving techniques, improvement in transportation efficiency by using larger transport vehicles, introducing cargo consolidation arrangements, reviewing transport routes, and modal shift using rail and ship transport.

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Category Scope of coverage Unit FY Mar/2019 FY Mar/2020 FY Mar/2021 External
Assurance
Remarks
Environmentally-friendly Logistics   Million ton-kilo-meters          
    Freight volumes handled by Mitsui Domestic logistics handled by Mitsui 769 631 506 star  
  (Breakdown)              
    Ship   677 558 433 star  
    Truck   92 73 73 star  
    Air/Rail   0 0 0 star  
    Intensity (fuels per thousand ton-kilo-meters) kl/thousand ton-kilo-meters 0.015 0.015 0.015 star  

Initiatives toward Environmentally-friendly Logistics

Improvement of Land Transport Efficiency We will use more energy efficient transportation methods.
· Using consolidated cargo
· Using larger transport vehicles to increase loading rates
· Reviewing transport routes and methods
Improvement of Sea Transport Efficiency We will continue to provide the following guidance for vessels chartered and/or operated by our affiliated companies.
· Increasing ship loading rates
· Economic cruise speed operation

Environmental Conservation/Economic Effects

The environmental conservation and economic effects in the areas of paper consumption and energy consumption during the fiscal year ended March 2021 are shown below.

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Category Scope of Coverage Environmental conservation effects Economic effects
Environmental Conservation/Economic Effects      
    Paper consumption Headquarters and all offices in Japan 17,146 thousand Sheets 12,080 thousand JPY
    Electricity consumption Headquarters and Mitsui-owned buildings 7,608MWh 184,275 thousand JPY

Assessment of Environmental Liabilities

Currently, corporate management is strongly expected to proactively deal with environmental issues. In addition to complying with legal requirements, we are working to monitor environmental risks of tangible fixed assets through self-driven surveys such as of land and buildings of Mitsui and subsidiaries in Japan, especially for asbestos, PCB, and soil pollution, and make prompt decisions on management policies.

Environment-related fines and penalties

Mitsui did not incur any environment-related fines or penalties in the fiscal year ended March 2021.