ESG Data

ESG (Environmental, Social and Governance) data for our business activities is available below.
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Environmental Management

Environmental Accounting

<FY2021 Scope of Environmental Accounting>

  • Period: April 1, 2021 to March 31, 2022
  • Scope of calculation: KDDI and KDDI Group companies [1]
  • Calculation standard: Environmental Accounting Guidelines 2005 formu lated by the Japan's Ministry of the Environment, KDDI Environmental Accounting Guidelines
Environmental protection costs
Unit: million yen
Environmental protection costs Transaction examples FY2019 FY2020 FY2021 Change from previous year boundary
Investment Cost Investment Cost Investment Cost Investment Cost
Business operation area costs Pollution prevention costs Pollution prevention costs stipulated by laws, costs for proper disposal of PCB, etc. 0 1 0 0 0 1 0 1 KDDI [2]
Global environmental protection costs Power-saving wireless equipment for mobile base stations (Investment amount is calculated proportionally based on the power-saving effect) 98 10,034 19 2,027 1 1,765 ▲18 ▲262
Resource recycling costs Reduction of paper consumption, processing and disposal of waste products 0 121 0 183 0 121 0 ▲62
Upstream/downstream costs Collection, recycling and reuse of merchandise and products 0 1,277 0 1,231 0 912 0 ▲319
Management costs Operation and updating of environmental ISO standards, disclosure of environmental information 0 114 0 98 0 103 0 5
R&D costs R&D of technology, equipment, handsets, products and services conducive to reducing the environmental impacts 0 0 0 85 0 55 0 ▲30
Social activity costs Donations and support for forest conservation activities and to environmental conservation groups 0 37 0 15 0 23 0 8
Environmental damage restoration costs Asbestos survey 0 0 0 0 0 0 0 0
Total 98 11,584 19 3,639 1 2,980 ▲18 ▲659
  • [1]
    Stated scope is corrected. (Apr. 2023)
    Incorrect: KDDI and 28 major group companies
    Correct: KDDI and KDDI Group companies
  • [2]
    Stated boundary is corrected. (Apr. 2023)
    Incorrect: KDDI and 28 major group companies
    Correct: KDDI
1. Environmental conservation benefits (physical)
Indicator category Unit FY2019 FY2020 FY2021 Change from previous year boundary
(1) Benefits for business operation area 1) Benefits related to resources input in business activities Electricity usage 1,000kWh 3,079,800 3,198,506 ✔ 3,638,802 440,296 KDDI Group [4]
Paper usage t 9,602 8,854 5,616 ▲3,238 KDDI Group [4]
Paper reduced by Bill on Web t 4,207.3 4,962.0 5,179.9 217.9 KDDI [5]
2) Benefits related to waste or environmental impact originating from business activities Greenhouse gas emissions [3] t-CO2 1,377,299.9 1,321,801.2 ✔ 1,524,226.4 202,425.2 KDDI Group [4]
Industrial waste emissions related to telecommunications facilities and buildings t 3,753 3,319 ✔ 4,816 1,497 KDDI Group [4]
(2) Benefits for upstream/
downstream costs		 Benefits related to goods and services produced from business activities Number of post-consumer mobile phones and other devices collected 10,000 units 279 258 260 2 KDDI [5]
  • [3]
    The CO2 emissions are calculated using the emission factors furnished by electric utility operators. (Emissions from heat, steam and hot and chilled water consumption are included.)
  • [4]
    Stated boundary is corrected. (Apr. 2023)
    Incorrect: KDDI and 28 major group companies
    Correct: KDDI Group
  • [5]
    Stated boundary is corrected. (Apr. 2023)
    Incorrect: KDDI and 28 major group companies
    Correct: KDDI
  • FY2020 data with third-party guarantees ✔.
2. Economic benefits of environmental conservation measures (yen)
Unit: million yen
Substantial benefits (Major effects) FY2019 FY2020 FY2021 Change from previous year boundary
Revenues Revenues gained by disposal of telecommunications facilities and buildings 140.3 4,665.4 229.3 ▲4,436.1 KDDI [6]
Cost reductions Reduction in energy costs by introducing low-pollution vehicles 35.5 32.7 39.9 7.2
Reduction in costs of new purchases by reusing old telecommunications facilities 4,850.6 2,650.2 2,419.1 ▲231.1
Total 5,026.4 7,348.2 2,688.3 ▲4,659.9
  • [6]
    Stated boundary is corrected. (Apr. 2023)
    Incorrect: KDDI and 28 major group companies
    Correct: KDDI
KDDI Targets for FY2030: Consolidated data
Consolidated electricity consumption Unit: 1,000kWh 3,513,024
Consolidated water resource input (basic unit) Unit: m3/person 12

Environmental Performance

CO2Emissions and the Proportion of Each Category (Coverage: KDDI, non-consolidated basis)
FY2017 FY2018 FY2019 FY2020 FY2021
Third-party guarantee for Scope 1 emissions and Scope 2 emissions ◯ ◯ ◯ ◯ Planning to obtain in March 2023
Third-party verification of Scope 3 emissions ◯ ◯ ◯ ◯ ◯
Category CO2emissions CO2emissions CO2emissions CO2emissions CO2emissions
t % t % t % t % t %
Scope 1 [7] All direct GHG emissions 5,700 0.09 6,539 0.12 6,581 0.10 5,746 ✔ 0.09 7,962 0.13
Scope 2 [8] Indirect GHG emissions from consumption of purchased electricity, heat or steam 1,073,088 17.67 1,058,143 18.98 1,041,559 16.13 1,049,105 ✔ 16.28 1,078,552 17.55
Scope 3 [9] Category 1 Purchased goods and services 3,818,806 62.89 3,347,946 60.05 3,529,472 54.65 3,581,713 ✔ 55.57 3,373,587 ✔ 54.88
Category 2 Capital goods 828,675 13.65 875,318 15.70 1,584,908 24.54 1,486,988 ✔ 23.07 1,367,518 ✔ 22.25
Category 3 Fuel- and energy-related activities not included in Scopes 1 and 2 35,280 0.58 37,104 0.67 40,188 0.62 41,729 ✔ 0.65 43,950 ✔ 0.71
Category 4 Upstream transportation and distribution 12,101 0.20 8,777 0.16 7,408 0.11 7,183 ✔ 0.11 12,035 ✔ 0.20
Category 5 Waste generated in operations 1,043 0.02 710 0.01 413 0.01 464 ✔ 0.01 485 ✔ 0.01
Category 6 Business travel 6,327 0.10 5,012 0.09 4,955 0.08 662 ✔ 0.01 908 [10] ✔ 0.01
Category 7 Employee commuting 4,332 0.07 4,034 0.07 5,043 0.08 1,897 ✔ 0.03 2,430 [11] ✔ 0.04
Category 8 Upstream leased assets 1,092 0.02 1,133 0.02 784 0.01 514 ✔ 0.01 527 ✔ 0.01
Category 9 Downstream transportation and distribution 0 0.00 0 0.00 0 0.00 0 ✔ 0.00 0 ✔ 0.00
Category 10 Processing of sold products 0 0.00 0 0.00 0 0.00 0 ✔ 0.00 0 ✔ 0.00
Category 11 Use of sold products 285,294 4.70 229,913 4.12 237,008 3.67 268,754 ✔ 4.17 259,227 ✔ 4.22
Category 12 End-of-life treatment of sold products 426 0.01 344 0.01 205 0.00 150 ✔ 0.00 127 [12] ✔ 0.00
Category 13 Downstream leased assets 0 0.00 0 0.00 0 0.00 0 ✔ 0.00 0 ✔ 0.00
Category 14 Franchises 0 0.00 0 0.00 0 0.00 0 ✔ 0.00 0 ✔ 0.00
Category 15 Investment 0 0.00 0 0.00 0 0.00 0 ✔ 0.00 0 ✔ 0.00
4,993,376 82.23 4,510,291 80.90 5,410,384 83.77 5,390,054 ✔ 83.63 5,060,794 [13] ✔ 82.33 [15]
Total 6,072,164 100 5,574,974 100 6,458,524 100 6,444,904 100 6,147,308 [14] 100
  • [7]
    Heavy oil (crude oil), diesel, kerosene, town gas
  • [8]
    The CO2 emissions for power consumption are calculated using the emission factors furnished by electric utility operators. (Emissions from heat, steam, and hot and chilled water consumption are included.)
  • [9]
    Uses emission coefficients indicated in Japan's Ministry of the Environment's Overview of Basic Guidelines on Accounting for Greenhouse Gas Emissions throughout the Supply Chain.
  • [10]
    Stated figure is corrected. (Apr. 2023)
    Incorrect: 870
    Correct: 908
  • [11]
    Stated figure is corrected. (Apr. 2023)
    Incorrect: 2,153
    Correct: 2,430
  • [12]
    Stated figure is corrected. (Apr. 2023)
    Incorrect: 125
    Correct: 127
  • [13]
    Stated figure is corrected. (Apr. 2023)
    Incorrect: 5,060,478
    Correct: 5,060,794
  • [14]
    Stated figure is corrected. (Apr. 2023)
    Incorrect: 6,146,992
    Correct: 6,147,308
  • [15]
    Stated figure is corrected. (Apr. 2023)
    Incorrect: 82.32
    Correct: 82.33
  • FY2020 and FY2021 data with third-party guarantees ✔.
Environmental Impact Data (Non-consolidated, Consolidated)
FY2017 FY2018 FY2019 FY2020 FY2021
Third-party guarantee for Scope 1 emissions and Scope 2 emissions ◯ ◯ ◯ ◯ Planning to obtain in March 2023
Third-party verification of Scope 3 emissions ◯ ◯ ◯ ◯ ◯
KDDI Power consumption Unit: 1,000kWh 2,086,626 2,151,456 2,262,524 2,357,458 ✔ 2,471,430
Scope 1 emissions Fuel Unit: t-CO2 5,700 6,539 6,581 5,746 ✔ 7,962
Scope 2 emissions [16] (market-based) Electricity, steam and hot and cold water Unit: t-CO2 1,073,088 [17] 1,058,143 1,041,559 1,049,105 ✔ 1,078,552
Total of Scope 1 + 2 emissions Unit: t-CO2 1,078,788 1,064,683 1,048,140 1,054,850 ✔ 1,086,514
Scope 3 emissions Total of categories 1-15 Unit: t-CO2 4,993,376 4,510,291 5,410,384 5,390,054 ✔ 5,060,794 [19] ✔
Total of Scope 1 + 2 + 3 emissions Unit: t-CO2 6,072,164 5,574,974 6,458,524 [18] 6,444,904 ✔ 6,147,308 [20]
Consolidated Electric power consumption Unit: 1,000kWh 2,992,240 2,930,568 3,079,800 3,198,506 ✔ 3,638,802
derived from renewable energy sources Unit: 1,000kWh 143,311 158,338 169,349 338,319 ✔ 374,438
Scope 1 emissions Fuel Unit: t-CO2 22,594 25,511 25,169 25,420 ✔ 27,679
Scope 2 emissions [16] (market-based) Electricity, steam and hot and cold water Unit: t-CO2 1,504,142 1,369,942 1,352,131 1,296,381 ✔ 1,496,547
Total of Scope 1 + 2 emissions (market-based) Unit: t-CO2 1,526,737 1,395,453 1,377,300 1,321,801 ✔ 1,524,226
Scope 2 (location-based) Electricity, steam and hot and cold water Unit: t-CO2 ― 1,486,429 1,486,924 1,475,724 ✔ 1,618,657
  • [16]
    The CO2 emissions for power consumption are calculated using the emission factors furnished by electric utility operators. (Emissions from heat, steam, and hot and chilled water consumption are included.)
  • [17]
    Stated figure is corrected. (Apr. 2023)
    Incorrect: 1,072,088
    Correct: 1,073,088
  • [18]
    Stated figure is corrected. (Apr. 2023)
    Incorrect: 6,548,524
    Correct: 6,458,524
  • [19]
    Stated figure is corrected. (Apr. 2023)
    Incorrect: 5,060,478
    Correct: 5,060,794
  • [20]
    Stated figure is corrected. (Apr. 2023)
    Incorrect: 6,146,992
    Correct: 6,147,308
  • FY2020 and FY2021 data with third-party guarantees ✔.
Environmental Impact Data (Non-consolidated, Consolidated)
FY2017 FY2018 FY2019 FY2020 FY2021
Third-party verification of water usage (non-consolidated/consolidated basis) ◯ ◯ ◯ ◯ Planning to obtain in March 2023
Third-party verification of industrial waste (non-consolidated/consolidated basis) ◯ ◯ ◯ ◯
KDDI Electric power consumption per subscriber [21] Unit: 1,000kWh 368 360 358 361 ✔ 372
Fuel consumption [22] Unit: kiloliter 319 330 544 345 ✔ 364
Paper usage Unit: t 7,462 10,853 9,512 8,798 5,313
Water usage [23] Unit: m3 745,722 399,563 395,134 841,758 ✔ 397,217
Industrial waste [24] Unit: t 2,467 1,927 1,941 2,318 ✔ 1,993
Number of mobile phones and other devices collected by KDDI Mobile phone main body ten thousand units 134 125 118 112 114
Batteries ten thousand units 123 108 98 91 87
Chargers ten thousand units 57 54 63 54 58
Energy usage at equipment-related facilities Unit: 1,000kWh 816,904 863,416 903,111 947,613 ✔ 1,009,816
Consolidated Water usage (Water supply, recycled water, well water, excluding waste water) Unit: m3 1,001,926 730,259 674,869 1,156,206 ✔ 1,087,106
Water resource usage (basic unit): Consolidated water usage/Consolidated number of employees Unit: m3
/person		 ― ― 15 24 ✔ 22
Industrial waste (Nonhazardous industrial waste (telecommunications equipment, normal daily waste from KDDI buildings)) Unit: t 4,937 3,303 3,753 3,319 ✔ 4,816
  • [21]
    The number of subscribers combines subscriptions for au and FTTH (unit: 10,000 contracts).
  • [22]
    Fuel consumption includes heavy oil, diesel and kerosene (but excludes city gas). The emission coefficient applied to GHG emissions calculation and reporting and disclosure system specified in the Act on Promotion of Global Warming Countermeasures is used.
  • [23]
    Water supply, recycled water, well water, excluding waste water
  • [24]
    Nonhazardous industrial waste (telecommunications equipment, normal daily waste from KDDI buildings)
  • FY2020 data with third-party guarantees ✔.
Renewable Energy Business
Unit: 1,000kWh
FY2017 FY2018 FY2019 FY2020 FY2021 boundary
Total generated energy (sold) 18,137 17,998 17,406 17,566 17,664 KDDI
Reduction of Waste and Paper Use
Unit: t
FY2017 FY2018 FY2019 FY2020 FY2021 boundary
Total material recycling volume 1,093.4 1,618.4 791.8 1,073.2 1,714 KDDI
Reduction of paper by putting bills on the Web 3,902 4,041 4,207 4,962 5,180
Mobile Phone Recycling
Unit FY2017 FY2018 FY2019 FY2020 FY2021 boundary
Collection performance [25] ten thousand units 315 288 279 112 260 KDDI
Recycling rate (mobile phones) % 99.8 99.8 99.8 99.8 99.8
  • [25]
    Includes main body, batteries and Chargers
Environmental Conservation Activities by Employees
FY2017 FY2018 FY2019 FY2020 FY2021 boundary
Number of times executed Unit: times 210 248 209 117 149 KDDI
Total participants Unit: person 5,302 4,988 4,582 1,553 2,936
Environment