ESG Data

ESG (Environmental, Social and Governance) data related to our business activities is available below. (Updated: September 30, 2025)
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CO2 Emissions

Item Boundary Coverage
(FY2024)		 FY2020 FY2021 FY2022 FY2023 FY2024
Third-party Assurance of Scope 1 and Scope 2 GHG Emissions - ◯ ◯ ◯ ◯ Assurance planned:
Mar 2026
Third-party Verification of Scope 3 GHG Emissions - ◯ ◯ ◯ ◯ ◯
CO2Emissions - t % t % t % t % t %
Scope 1 [Jump to the applicable section1] All Direct GHG Emissions KDDI - 5,746 0.09 7,976 0.13 5,747 0.09 5,451 ✔ 0.10 5,350 0.09
Group 100% 25,420 - 27,687 - 88,383 - 28,432 ✔ - 25,743 -
Scope 2 [Jump to the applicable section2]
(Market-Based)		 Indirect GHG Emissions from Consumption of Purchased Electricity, Heat or Steam KDDI - 1,049,105 16.28 1,090,954 17.71 944,876 15.23 641,922 ✔ 11.42 632,623 10.49
Group 100% 1,296,381 - 1,492,048 - 1,318,013 - 975,173 ✔ - 969,909 -
Scope 2 [Jump to the applicable section2]
(Location-Based)		 Group 100% 1,475,724 - 1,614,118 - 1,475,170 - 1,411,040 ✔ - 1,412,656 -
Total Scope 1 + 2 GHG Emissions
(Market-Based)		 KDDI - 1,054,850 - 1,098,929 - 950,622 - 647,373 ✔ - 637,973 -
Group 100% 1,321,801 - 1,519,735 - 1,406,396 - 1,003,605 ✔ - 995,652 -
Scope 3 [Jump to the applicable section3] Category 1 Purchased Goods and Services KDDI - 3,581,713 55.57 3,373,587 54.77 3,388,959 54.64 3,251,795 57.84 3,190,561 ✔ 52.91
Category 2 Capital Goods 1,486,988 23.07 1,367,518 22.20 1,464,526 23.61 1,477,618 26.28 1,584,114 ✔ 26.27
Category 3 Fuel- and Energy-Related Activities Not Included in Scopes 1 and 2 41,729 0.65 43,950 0.71 153,839 2.48 117,113 2.08 102,227 ✔ 1.70
Category 4 Upstream Transportation and Distribution 7,183 0.11 12,035 0.20 6,292 0.10 5,072 0.09 5,185 ✔ 0.09
Category 5 Waste Generated in Operations 464 0.01 485 0.01 160 0.00 141 0.00 234 ✔ 0.00
Category 6 Business Travel 662 0.01 908 0.01 6,114 0.10 6,271 0.11 5,578 ✔ 0.09
Category 7 Employee Commuting 1,897 0.03 2,430 0.04 2,088 0.03 1,777 0.03 1,941 ✔ 0.03
Category 8 Upstream Leased Assets 514 0.01 527 0.01 527 0.01 487 0.01 433 ✔ 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 268,754 4.17 259,227 4.21 228,485 3.68 113,206 2.01 500,956 ✔ 8.31
Category 12 End-of-Life Treatment of Sold Products 150 0.00 127 0.00 979 0.02 918 0.02 945 ✔ 0.02
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 Investments 0 0.00 0 0.00 0 0.00 0 0.00 0 ✔ 0.00
5,390,054 83.63 5,060,794 82.16 5,251,969 84.67 4,974,398 88.48 5,392,175 ✔ 89.42
Total Scope 1 + 2 + 3 GHG Emissions KDDI - 6,444,904 100 6,159,723 100 6,202,591 100 5,621,771 ✔ 100 6,030,148 100.00
Scope 3 [Jump to the applicable section3] Category 1 Purchased Goods and Services Group 100% - - - - - - - - 7,475,856 62.64
Category 2 Capital Goods - - - - - - - - 2,170,627 18.19
Category 3 Fuel- and Energy-Related Activities Not Included in Scopes 1 and 2 - - - - - - - - 196,530 1.65
Category 4 Upstream Transportation and Distribution - - - - - - - - 5,209 0.04
Category 5 Waste Generated in Operations - - - - - - - - 305 0.00
Category 6 Business Travel - - - - - - - - 8,691 0.07
Category 7 Employee Commuting - - - - - - - - 3,242 0.03
Category 8 Upstream Leased Assets - - - - - - - - 428 0.00
Category 9 Downstream Transportation and Distribution - - - - - - - - 0 0.00
Category 10 Processing of Sold Products - - - - - - - - 0 0.00
Category 11 Use of Sold Products - - - - - - - - 605,024 5.07
Category 12 End-of-Life Treatment of Sold Products - - - - - - - - 948 0.01
Category 13 Downstream Leased Assets - - - - - - - - 0 0.00
Category 14 Franchises - - - - - - - - 0 0.00
Category 15 Investments - - - - - - - - 473,054 3.96
- - - - - - - - 10,939,914 91.66
Total Scope 1 + 2 + 3 GHG Emissions Group 100% - - - - - - - - 11,935,566 100.00
  • [1]
    Includes heavy oil, diesel, kerosene, and town gas.
  • [2]
    CO2 emissions from electricity consumption are calculated using emission factors provided by electric utility companies, including emissions from heat, steam, and hot/chilled water.
  • [3]
    Emission factors are based on the Ministry of the Environment's "Basic Guidelines on Accounting for Greenhouse Gas Emissions throughout the Supply Chain."
  • ✔ = latest data with third-party assurance
  • Coverage is calculated based on operating revenue.

Energy

Item Boundary Coverage
(FY2024)		 Unit FY2020 FY2021 FY2022 FY2023 FY2024
Electric Power Consumption KDDI - 1,000kWh 2,357,458 2,468,974 2,216,734 2,162,465 ✔ 2,172,276
Group 100% 3,198,506 3,634,732 3,387,049 3,328,127 ✔ 3,400,458
Electric Power Consumption Derived from Renewable Energy Sources Group - 1,000kWh 338,319 379,173 488,544 967,131 ✔ 1,241,375
Total Generated Renewable Energy KDDI - 1,000kWh 17,566 17,664 16,649 16,240 17,237
Energy Usage at Equipment-Related Facilities KDDI - 1,000kWh 947,613 1,009,802 1,039,214 1,043,504 ✔ 1,005,340
Data Center Power Usage Effectiveness [Jump to the applicable section1] Group 100% - 1.62 1.60 1.57 1.56 1.56
Fuel Consumption [Jump to the applicable section2] KDDI - kℓ 345 364 546 393 ✔ 283
  • [1]
    For FY2020–2021, the number of overseas data centers owned by KDDI is used as the basis.
  • [2]
    Includes heavy oil, diesel, and kerosene (excluding town gas and LP gas). Emission factors are based on the calculation, reporting, and disclosure system for greenhouse gases under the Act on Promotion of Global Warming Countermeasures.
  • ✔ = latest data with third-party assurance
  • Coverage is calculated based on operating revenue.

Resources and Waste

Item Boundary Coverage
(FY2024)		 Unit FY2020 FY2021 FY2022 FY2023 FY2024
Third-party Assurance of Water Usage (non-consolidated and consolidated) - - - ◯ ◯ ◯ ◯ Assurance planned:
Mar 2026
Third-party Assurance of Industrial Waste (non-consolidated and consolidated) - - - ◯ ◯ ◯ ◯ Assurance planned:
Mar 2026
Industrial Waste [Jump to the applicable section1] Discharge Amount KDDI - t 2,318 1,945 1,186 1,136 ✔ 1,112
Recycling Amount 1,073 1,714 299 138 119
Final Disposal Amount kg - - 15 200 150
Discharge Amount Group 100% t 3,319 4,822 4,216 8,069 ✔ 4,525
Recycling Amount [Jump to the applicable section3] - - 1,571 285 392
Final Disposal Amount - - 205 531 290
Water Usage [Jump to the applicable section2] Water Withdrawal KDDI - m3 841,758 937,826 878,595 755,299 ✔ 579,820
Group 100% 1,156,206 1,630,890 2,050,273 1,803,453 ✔ 1,706,963
Water Discharge Volume Group 100% 1,156,206 1,630,890 2,050,273 1,803,453 1,706,963
Paper Usage KDDI - t 8,798 5,313 6,809 6,370 6,348
Paper Reduction Through Web-Based Billing KDDI - t 4,962 5,180 5,358 5,548 5,710
Mobile Phone Recycling Collection Results (Including Devices, Batteries, and Chargers) KDDI - ten thousand units 258 260 217 192 182
t 129 [Jump to the applicable section4] 130 [Jump to the applicable section4] 108.5 [Jump to the applicable section4] 96 [Jump to the applicable section4] 91
Recycling Rate % 99.8 99.8 99.8 99.8 99.8
Waste Rate % 0.2 0.2 0.2 0.2 0.2
  • [1]
    Nonhazardous industrial waste (e.g., telecommunications equipment and general waste from KDDI buildings).
  • [2]
    Includes tap water, potable water, recycled water, and well water; excludes wastewater.
  • [3]
    Major subsidiaries.
  • [4]
    Data for FY2020–FY2023 is calculated based on FY2024 actual results.
  • ✔ = latest data with third-party assurance
  • Coverage is calculated based on operating revenue.

Environmental Management System

Item Unit FY2024
ISO 14001 Certification Rate [Jump to the applicable section1] % 100
  • [1]
    The percentage of certified facilities among the target facilities (facilities designated as Type 1 or Type 2 Energy Management specified factories, etc.).

KDDI Targets for FY2030: Consolidated data

Consolidated Electricity Consumption Unit: 1,000kWh 3,513,024
Consolidated Water Resource Input Unit: m3/Person 12