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KDDI Corp
KDDI's GHG Emissions Data Preview
In 2025, KDDI completed a corporate carbon footprint assessment and publicly disclosed its greenhouse gas (GHG) emissions according to the GHG Protocol, covering Scope 1 (direct emissions from owned or controlled sources), Scope 2 (indirect emissions from purchased energy) and Scope 3 (indirect emissions across the value chain).
KDDI has also provided a category-level breakdown for 15 out of 15 Scope 3 emissions categories, offering greater transparency into its value chain emissions.
| Metric (tCO2e) | 2025 | 2024 | 2023 | 2022 - 2017 |
|---|---|---|---|---|
Total Scope 1 | Copy restricted. Please purchase to unlock this data.  a | Copy restricted. Please purchase to unlock this data.  a | Copy restricted. Please purchase to unlock this data.  a | 0000000 |
Total Scope 2 | ||||
Market-Based | Copy restricted. Please purchase to unlock this data.  a | Copy restricted. Please purchase to unlock this data.  a | Copy restricted. Please purchase to unlock this data.  a | 0000000 |
Location-Based | Copy restricted. Please purchase to unlock this data.  a | Copy restricted. Please purchase to unlock this data.  a | Copy restricted. Please purchase to unlock this data.  a | 0000000 |
Total Scope 3 | Copy restricted. Please purchase to unlock this data.  a | Copy restricted. Please purchase to unlock this data.  a | Copy restricted. Please purchase to unlock this data.  a | 0000000 |
Total Scope 1 Revenue Intensity (tCO2e/$M) | Copy restricted. Please purchase to unlock this data.  a | Copy restricted. Please purchase to unlock this data.  a | Copy restricted. Please purchase to unlock this data.  a | 0000000 |
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aVerified Sources Behind KDDI’s Greenhouse Gas (GHG) Emissions Data
Every figure on this dashboard has a transparent audit trail. With Tracenable, each data point is traceable back to its original source, viewable directly inside our platform. Explore KDDI’s data sources below and access millions more through our Disclosure Search.
Insights into KDDI's Operational Emissions
In 2025, the total operational greenhouse gas (GHG) emissions ofKDDI amounted to1,438,399metric tons of CO2 equivalent.This figure includes both direct emissions from owned or controlled sources (Scope 1) and indirect emissions from purchased energy (Scope 2).a
Compared to 2024, the total operational greenhouse gas (GHG) emissions of KDDIdecreased by 0.07%, showing that the company has made progress in taking action to reduce the climate impact of its operations.a
KDDI's Scope 1 Emissions Over Time
- Total Scope 1
- Year-over-Year Change
What are KDDI's Scope 1 emissions?
In 2025, the total Scope 1 emissions of KDDI were 25,743 metric tons of COâ‚‚ equivalent (tCOâ‚‚e).a
Has KDDI reduced its Scope 1 emissions over time?
Since 2019, KDDI's Scope 1 emissions have remained relatively, stable, indicating that KDDI's emissions have plateaued with no significant change in its operational footprint.ab
Compared to the previous year(2024), KDDI's Scope 1 emissions decreased by 9.46%, highlighting the company's efforts to lower direct emissions from assets it owns or controls.a
What are KDDI's Scope 2 emissions?
In 2025, KDDI reported Scope 2 greenhouse gas (GHG) emissions of 969,909 tCOâ‚‚e using the market-based method and 1,412,656 tCOâ‚‚e using the location-based method.a
Has KDDI reduced its Scope 2 emissions over time?
Since 2019, KDDI's Scope 2 greenhouse gas (GHG) emissions (Location-Based)have remained relatively stable, indicating that KDDI's emissions have plateaued with no significant change in its energy consumption footprint.ab
Compared to the previous year(2024), KDDI's Scope 2 emissions(Location-Based) have remained relatively stable, indicating that KDDI's emissions have plateaued with no significant change in its energy consumption footprint.a
What methodology does KDDI use for Scope 2 reporting?
In 2025, KDDI reported its Scope 2 emissions using the market-based method and using the location-based method.a
KDDI's Scope 2 Emissions Over Time
- Total Scope 2 Location-Based
- Total Scope 2 Market-Based
Insights into KDDI's Value Chain Emissions
In 2025, KDDI reported 10,939,914 metric tons of COâ‚‚ equivalent (tCOâ‚‚e) of Scope 3 greenhouse gas (GHG) emissions, representing indirect emissions across its upstream and downstream value chain.a
The 2025 disclosure of KDDI includes a breakdown across 15of the 15 Scope 3 categories defined by the GHG Protocol,matching the level of disclosure in 2024, demonstrating consistent Scope 3 emissions reporting coverage year over year.a
KDDI's Scope 3 Emissions Over Time
- Total Scope 3
- Year-over-Year Change
What are KDDI's Scope 3 emissions?
In 2025, KDDI reported total Scope 3 emissions of 10,939,914 metric tons of COâ‚‚ equivalent (tCOâ‚‚e).a
Approximately 90.14%of these emissions originated from upstream activities such as purchased goods and capital goods, while 9.86%came from downstream activities like product use, distribution, and end-of-life treatment.a
Has KDDI reduced its Scope 3 emissions over time?
Since 2019, KDDI's Scope 3 emissionshave increased by 142.55%, reflecting a rising long-term trend in Scope 3 emissions over time.ab
Compared to the previous year (2024), KDDI's Scope 3 emissions increased by 119.92%, suggesting that the company faced challenges in reducing emissions across its value chain.a
What categories of Scope 3 emissions does KDDI disclose?
In 2025, KDDI reported emissions for 15 out of the 15 Scope 3 categories defined by the GHG Protocol.a
This reflects a high level of granularity and transparency in the company's emissions reporting.
What are the main sources of KDDI's Scope 3 emissions?
In 2025, the largest contributors to KDDI's Scope 3 emissions were:a
- Purchased Goods and Services (Cat. 1): 7,475,856 tCOâ‚‚e(68.34%)
- Capital Goods (Cat. 2): 2,170,627 tCOâ‚‚e(19.84%)
- Use of Sold Products (Cat. 11): 605,024 tCOâ‚‚e(5.53%)
KDDI's Scope 3 Emissions by Categories
Insights into KDDI’s GHG Emissions Intensity Compared to Industry Peers
In 2025, KDDI reported Scope 1 greenhouse gas (GHG) emissions of 25,743 tCOâ‚‚e and total revenues of USD 39,465 millions. This translates into an emissions intensity of 0.65 tCOâ‚‚e per millions USD.a
KDDI's Scope 1 Emissions Intensity Compared to Peers
How does KDDI's GHG emissions intensity compare to its peers?
In 2025, KDDI reported a Scope 1 emissions intensity of 0.65 tCOâ‚‚e per millions USD. Compared to the peer group median of 0.24, this places the company above its industry benchmark, indicating it is less carbon-efficient than most competitors.a
Where does KDDI rank on GHG emissions intensity within its industry?
In 2025, KDDI ranked 16 out of 23 companies in its industry peer group, based on Scope 1 emissions intensity (measured in tCOâ‚‚e per millions USD).a
KDDI is therefore positioned in the mid-range of its industry, neither a clear leader nor a laggard in carbon efficiency.a
Insights into KDDI's Total Carbon Footprint
In 2025, KDDI reported a total carbon footprint of 12,378,313 metric tons of COâ‚‚ equivalent (tCOâ‚‚e) across Scope 1, Scope 2, and Scope 3 emissions. This represents a 92.99% increase compared to 2024, suggesting a rise in emissions across its operations or value chain.a
The largest contributor to KDDI's total carbon footprint was Scope 3 emissions, accounting for 88.38% of the company's total carbon footprint, followed by Scope 2 emissions at 11.41%.a