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Greenhouse Gas / Materials Balance

Greenhouse Gas

The Hitachi High-Tech Group is working on reducing CO2 value chain emissions, including CO2 emissions resulting from energy use at its business sites (Scope 1 and 2) and CO2 emissions elsewhere (Scope 3), as a response to the risks of climate change.

Independent Assurance

In order to enhance the credibility of this report, FY2021 figures marked with image:check mark icon have received independent assurance from SOCOTEC Certification Japan Co., Ltd. in accordance with the International Standard on Assurance Engagements (ISAE) 3000 and ISO14064-3.

Greenhouse Gas Emissions Across the Value Chain

Scope Category Emissions(t-CO2)*1
FY2019 results FY2020 results FY2021
Scope1 *2 *5 6,741 7,679 7,004
Scope2 *3 *5
Market base
< 50,783 >
< 45,967 >
< 52,268 >
Scope3 *4 *6 1.Purchased goods and services*7 1,418,395 1,434,982 874,226
2.Capital goods 86,412 102,905 48,578
3.Fuel and energy not included in Scopes 1 and 2 11,951 6,134 8,650
4.Upstream transportation and distribution 5,934 8,122 7,172
5.Waste generated by business activities 1,059 813 721
6.Business travel 1,385 1,350 1,469
7.Employee commuting 6,179 6,332 6,589
8.Upstream leased assets (Included in Scope 1,2) (Included in Scope 1,2) (Included in Scope 1,2)
9.Downstream transportation and distribution*8 (Not applicable) (Not applicable) 5,828
10.Processing of sold products (Not applicable) (Not applicable) (Not applicable)
11.Use of sold products 829,133 679,018 774,264
12.Disposal of sold products 535 455 5,540
13.Downstream leased assets (Included in No. 11) (Included in No. 11) (Included in No. 11)
14.Franchises (Not applicable) (Not applicable) (Not applicable)
15.Investments (Not applicable) (Not applicable) (Not applicable)
Scope 3 Total 2,360,982 2,240,110 1,733,038
Scope1+ Scope2 Total 53,923
< 57,524 >
< 53,646 >
< 59,272 >
Scope1 + Scope2 + Scope3 Total 2,414,905
< 2,418,506 >
< 2,293,756 >
< 1,792,310 >

*1Due to the number of displayed digits, the total individual values and those for each line may differ in some cases.

*2Direct emissions of greenhouse gases from the organization itself. Includes greenhouse gases from non-energy sources.

*3Indirect emissions due to the use of electricity and heat supplied by other companies. Number in <> is by location basis.

*4Indirect emissions not included in Scopes 1 and 2.

*5Reporting boundary for Scopes 1 and 2 emissions: Hitachi High-Tech Group companies (excluding two overseas subsidiaries)

*6 Reporting boundary for Scope 3 emissions: Hitachi High-Tech, Hitachi High-Tech Group companies in Japan, and manufacturing group companies outside Japan.
However, the scope of coverage for the following categories is as follows:

  • Category 1: Excluding Hitachi High-Tech’s head office, sales group companies, and service group companies.
  • Category 3: All sites worldwide excluding Hitachi High-Tech Ireland and Hitachi High-Tech Israel.

*7The Category 1 calculation method changed from FY2021.

*8Category 9 is calculated from FY2021.

Materials Balance

The following information shows the quantity of resource inputs into the business activities of our Group and the scale of emissions that impose a burden on the environment.

Quantity of Resource Inputs and Emissions That Impose a Burden on the Environment

Table: Quantity of Resource Inputs and Emissions That Impose a Burden on the Environment

* The reporting boundary is the following Hitachi High-Tech and group companies in Japan, excluding certain sites that reside within other Hitachi group's business sites.
Energy and greenhouse gases: Hitachi High-Tech, group manufacturing companies, group sales companies, and group service companies
Water resource: Hitachi High-Tech (manufacturing sites), group manufacturing companies, and group service companies
Waste: Hitachi High-Tech (head office, manufacturing sites), manufacturing group companies, and service group companies

* Raw material inputs include raw materials only and do not include components, semi-finished goods, or finished products purchased from external parties.

* There are no emissions of non-energy –derived CO2, CH4 and N2O specified in the Act on Promotion of Global Warming Countermeasures.

Quantity of Raw Material Inputs (only metals)

Graph: Quantity of Raw Material Inputs (only metals)

* Reporting boundary: Manufacturing sites of the Hitachi High-Tech and group manufacturing companies in Japan

Breakdown of Raw Material Inputs


Material FY2017 FY2018 FY2019 FY2020 FY2021
Iron (including steel plate) 327.0 302.0 240.0 399.8 421
Stainless steel 790.1 600 469.0 562.0 546.6
Aluminium 1,724.9 1,321 1,191.0 1,135.4 1,434.6
Copper 76.0 69.0 68.0 85.5 127.6
Lead 1.0 1.0 1.0 0.0 0.0
Total 2,919.0 2,293.0 1,969.0 2,182.7 2,529.8

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