Environmental Data

Environmental Data

The Sumitomo Corporation Group is striving to reduce the environmental impact by promoting to conserve energy and reduce waste at its offices, while making contributions to the environment through its business activities.

In addition, it has expanded the boundary of environmental data on our group from FY2017 to understand the actual environmental situation. The Sumitomo Group will work on environmental improvement through business by the whole group in the future.

The environmental data are assured by KPMG AZSA Sustainability Co., Ltd., an external assurance provider based on International Standard on Assurance Engagements (ISAE) 3000 and ISAE3410.

Please refer to "Independent Assurance Report" for further details about assurance engagement.
Independent Assurance Report(PDF/204KB)


<Boundary of the Data>

Non-consolidated : Head office, regional offices, branches and sub-branches in Japan and overseas
Consolidated* : Non-consolidated, Domestic and overseas consolidated subsidiaries
*As of the end of March of the reporting period

The detailed boundary of each data are as follows.
[CO2 emissions (Scope1<excluding 6.5 gases>, Scope2), Electricity consumption]
FY2016—Non-consolidated, Direct consolidated subsidiaries/all sites
from FY2017—Non-consolidated, Consolidated subsidiaries/all sites

[Scope1 emissions <6.5 gases only>]
Non-consolidated, Consolidated subsidiaries in Japan

[CO2 emissions (Scope3)]
Non-consolidated in Japan

[Energy consumtion]
FY2016—Non-consolidated, Direct consolidated subsidiaries/all sites
from FY2017—Non-consolidated, Consolidated subsidiaries/all sites

[Water consumption, Waste emissions]
up to FY2016—Non-consolidated, Direct consolidated subsidiaries/office only
from FY2017—Non-consolidated, Consolidated subsidiaries/all sites

[Water Discharge]
Non-consolidated

CO2 Emissions (Scope1, 2)

(Unit:t-CO2e)

FY2016 FY2017 FY2018 FY2019
Non-consolidated 5,190 4,926 4,148 3,233
Consolidated 317,727 1,686,654 1,569,759 1,474,885
(Components) Scope1 64,859 934,276 939,346 791,730
Scope2 252,869 752,378 630,412 683,156
  • We couldn't collect the environmental data for 38 sites due to COVID-19 lockdown or working from home in FY2019. In FY2018, CO2 emissions of these sites were equivalent to about 5.2% of the total CO2 emissions.
  • Please refer to the following publication site for CO2 emissions of Sumitomo Corporation head office in Tokyo.
    publication site link (Available in Japanese)
  • CO2 emission factors for electricity:
    (Non-consolidated in Japan) The basic emission coefficients of individual power companies.
    (Consolidated subsidiaries in Japan) The average emission coefficient of all power companies.
    (Overseas) Emission factors from electricity generation are based on the country-specific data in 2013 listed on "CO2 EMISSIONS FROM FUEL COMBUSTION 2016 EDITION", an IEA (International Energy Agency) statistics.
  • CO2 emission factors other than those from electricity generation are based on a manual for GHG emissions accounting, reporting, and disclosure systems published by Japan’s Ministry of the Environment and Ministry of Economy, Trade and Industry.
  • In FY2018 and FY2019, we surveyed non-consolidated and consolidated subsidiaries in Japan, and Scope1 emissions from 6.5 gases were both 0t-CO2e.
    The scope for 6.5 gases is that group companies emit more than 3,000 t-CO2e per year under the Greenhouse Gas Emissions Accounting, Reporting, and Disclosure System in Japan.
  • 6.5 gases are not subject to assurance engagement.

CO2 Emissions (Scope3)

(Unit:t-CO2e)


FY2016 FY2017 FY2018 FY2019
Logistics 7,420 7,803 5,216 5,501
Waste 11 6 6 15
Overseas business trips 26,518 28,569 30,232 22,400
Commuting 751 709 636 609
Downstream leased assets 35,148 36,894 35,230 33,662
Total 69,848 73,980 71,320 62,187
  • CO2 emissions (the above Scope1, 2 and Scope3) were 1,760,634t-CO2e/1,641,079t-CO2e/1,537,072t-CO2e in FY2017, FY2018, and FY2019 respectively.
  • CO2 emissions from logistics include the transport of cargo within Japan for which Sumitomo Corporation is the cargo owner, and are calculated based on a manual for GHG emissions accounting, reporting, and disclosure systems published by Japan’s Ministry of the Environment and Ministry of Economy, Trade and Industry. Sumitomo Corporation complies with the Act and reduces the use of energy of transportation through promotion of modal shift (utilization of railroads and vessels), optimization of delivery routes and loading on vehicles, promotion of eco-driving, etc. We have set a target of reducing the use of energy from logistics per shipping weight by at least 1% annually in Japan.
  • CO2 emissions from waste are calculated from all general waste of Sumitomo Corporation.
    Up to FY2018, emissions were calculated using emission intensity for incineration treatment published by the Carbon Footprint Communication Program. The results for FY2019 were calculated using the emission intensity for each type of waste, which is published in the emission intensity database (Ver. 3.0) for calculating greenhouse gas emissions and other emissions by organizations throughout the supply chain.
  • CO2 emissions due to overseas business trips are the emissions from flights departing from and arriving in Japan that Sumitomo Corporation employees took. Business trip destinations are classified into 12 areas and passenger-kilometers are estimated based on the travel distance between Japan and representative airport of each area. CO2 emissions due to overseas business trips are calculated by applying CO2 emission factors published by the UK's Defra to the passenger-kilometers.
  • CO2 emissions from commuting are those from the commuting of Sumitomo Corporation's employees working in Japan, calculated by using the emissions factors per passenger-kilometer for passenger transport by transport mode published in the Ministry of Land, Infrastructure, Transport and Tourism publication "CO2 Emissions in the Transport Sector."
  • CO2 emissions from downstream leased assets are calculated based on the energy consumption of the buildings that Sumitomo Corporation owns and leases to tenants, using by CO2 emission factors described in the Act on the Rational Use of Energy.

Energy Consumption

(Unit: GJ)

FY2016 FY2017 FY2018 FY2019
Non-consolidated 50,693 48,472 49,904 42,635
Consolidated 2,751,000 18,097,583 17,748,255 17,062,311
  • We couldn't collect the environmental data for 38 sites due to COVID-19 lockdown or working from home in FY2019. In FY2018, energy consumption of these sites were equivalent to about 7.3% of the total energy consumption.
  • Energy conversion factor from electricity consumption: 3.6 (MJ/kWh)
  • Energy conversion factors from other than electricity consumption are based on the Act on the Rational Use of Energy in Japan.

Electricity Consumption

(Unit: MWh)

FY2016 FY2017 FY2018 FY2019
Non-consolidated 8,134 7,536 5,773 4,526
Consolidated 464,303 1,535,347 1,412,661 1,534,809
  • We couldn't collect the environmental data for 38 sites due to COVID-19 lockdown or working from home in FY2019. In FY2018, electricity consumption of these sites were equivalent to about 7.1% of the total electricity consumption.
  • The amount of electricity consumption which generated from renewable energy was 112,045MWh in FY2019.

Water Consumption

(Unit: m³)

FY2016 FY2017 FY2018 FY2019
Non-consolidated 25,463 21,609 13,897 11,777
Consolidated 185,944 130,821,214 118,235,911 20,143,772
  • We couldn't collect the environmental data for 38 sites due to COVID-19 lockdown or working from home in FY2019. In FY2018, Water consumption of these sites were equivalent to about 50.5% of the total water consumption.
  • The above figures in FY2017 and FY2018 were excessive due to incorrect aggregation for several sites.
    Water consumption of those sites in FY2018 were equivalent to about 32.6% of the total water consumption.
  • Water consumption has been reduced by installing water-saving device for employee cafeteria and using recycling water for toilet flushing at Head office.

(Unit: m³)

Components of water source FY2018 FY2019
Third-party sources 3,378,261 4,206,078
Groundwater 110,100,910 13,007,683
Rivers, lakes 4,756,698 2,929,981
Ocean 0 0
Rainwater 42 30
Water consumption in water-stressed areas FY2019
Number of sites 74
Water consumption (m³) 366,026
(Components of water source) Third-party sources 366,026
Groundwater -
  • The above water consumption was calculated based in the water risk level of 3 (High) or higher based on the World Resources Institute (WRI)'s "WRI Aqueduct",
  • Components of water source and water consumption in water-stressed areas are not subject to assurance engagement.

Water Discharge

(Unit: m³)

FY2016 FY2017 FY2018 FY2019
Non-consolidated 25,463 21,609 13,897 11,777
  • Since all sites are discharged into the sewer, it is equivalent to the amount of water consumption.
  • This item is not subject to assurance engagement.

Waste Emissions

(Unit: t)

FY2016 FY2017 FY2018 FY2019
Non-consolidated 342 191 190 123
Consolidated 1,433 46,196 44,381 33,305
  • The above figures for Japan include general waste but exclude industrial waste and valuable resource.
  • We couldn't collect the environmental data for 38 sites due to COVID-19 lockdown or working from home in FY2019. In FY2018, waste emissions of these sites were equivalent to about 0.6% of the total waste emissions.
  • In FY2019, the recycle ratio at the head office, regional offices, branches and sub-branches in Japan was 95.04%, the waste recycling amount was 117t, and the final waste disposal volume was 6t.
  • This item is not subject to assurance engagement.

Paper Consumption

(Unit: 1,000 Sheets)

FY2016 FY2017 FY2018 FY2019
Non-consolidated in Japan 25,681 22,280 18,604 14,516
  • The above figures are calculated from the purchase cost of office paper and the unit price of A4 size paper.
  • This item is not subject to assurance engagement.

Hazardous Waste, NOx, SOx, VOC Emissions

  • The amount of hazardous waste emissions at the head office, regional offices, branches and sub-branches in Japan in FY2019 was 7..01t. It is the total amount of emission of the specially controlled industrial waste, as stipulated in the Waste Disposal Law.
  • There was no emission of NOx (nitrogen oxide), Sox (sulfur oxide), and VOC (volatile organic compound) at the head office, regional offices, branches and sub-branches in Japan in FY 2019.
  • This item is not subject to assurance engagement.
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