In 2025, KLA 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).
KLA has also provided a category-level breakdown for 10 out of 15 Scope 3 emissions categories, offering greater transparency into its value chain emissions.
| Metric (tCO2e) | 2025 | 2024 | 2023 | 2022-2019 |
|---|---|---|---|---|
Total Scope 1 | 6,956a | 6,523a | 7,550a | |
Total Scope 2 | ||||
Market-Based | 32,971a | 35,419a | 35,264a | |
Location-Based | 84,508a | 82,376a | 78,995a | |
Total Scope 3 | 3,743,444a | 3,441,712b | 3,531,323b | |
Total Scope 1 Revenue Intensity (tCO2e/$M) | 0.5722a | 0.6648a | 0.7193a |
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In 2025, the total operational greenhouse gas (GHG) emissions of KLA amounted to 91,464 metric 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 KLA increased by 2.89%, suggesting that the company faced challenges in reducing its emissions from its core operations.a
In 2025, the total Scope 1 emissions of KLA were 6,956 metric tons of CO₂ equivalent (tCO₂e).a
Since 2021, KLA's Scope 1 emissions have increased by 48.41%, reflecting a rising long-term trend in Scope 1 emissions over time.ac
Compared to the previous year (2024), KLA's Scope 1 emissions increased by 6.64%, suggesting that the company faced challenges in reducing emissions from its directly owned or controlled operations.a
In 2025, KLA reported Scope 2 greenhouse gas (GHG) emissions of 32,971 tCO₂e using the market-based method and 84,508 tCO₂e using the location-based method.a
Compared to the previous year (2024), KLA's Scope 2 emissions (Location-Based) have remained relatively stable, indicating that KLA's emissions have plateaued with no significant change in its energy consumption footprint.a
In 2025, KLA reported its Scope 2 emissions using the market-based method and using the location-based method.a
In 2025, KLA reported 3,743,444 metric tons of CO₂ equivalent (tCO₂e) of Scope 3 greenhouse gas (GHG) emissions, representing indirect emissions across its upstream and downstream value chain.a
The 2025 disclosure of KLA includes a breakdown across 10 of 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
In 2025, KLA reported total Scope 3 emissions of 3,743,444 metric tons of CO₂ equivalent (tCO₂e).a
Approximately 27.21% of these emissions originated from upstream activities such as purchased goods and capital goods, while 72.79% came from downstream activities like product use, distribution, and end-of-life treatment.a
Since 2021, KLA's Scope 3 emissions have increased by 15.18%, reflecting a rising long-term trend in Scope 3 emissions over time.ac
Compared to the previous year (2024), KLA's Scope 3 emissions remained relatively stable, indicating that KLA's emissions have plateaued with no significant change in its value chain footprint.ab
In 2025, KLA reported emissions for 10 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.
In 2025, the largest contributors to KLA's Scope 3 emissions were:a
In 2025, KLA reported Scope 1 greenhouse gas (GHG) emissions of 6,956 tCO₂e and total revenues of USD 12,157 millions. This translates into an emissions intensity of 0.57 tCO₂e per millions USD.a
In 2025, KLA reported a Scope 1 emissions intensity of 0.57 tCO₂e per millions USD. Compared to the peer group median of 3.11, this places the company below its industry benchmark, indicating it is more carbon-efficient than most competitors.a
In 2025, KLA ranked 5 out of 24 companies in its industry peer group, based on Scope 1 emissions intensity (measured in tCO₂e per millions USD).a
This places KLA among the top performers, with one of the lowest emissions intensities relative to peers.a
In 2025, KLA reported a total carbon footprint of 3,834,908 metric tons of CO₂ equivalent (tCO₂e) across Scope 1, Scope 2, and Scope 3 emissions. This represents a 8.62% increase compared to 2024, suggesting a rise in emissions across its operations or value chain.ab
The largest contributor to KLA's total carbon footprint was Scope 3 emissions, accounting for 97.61% of the company's total carbon footprint, followed by Scope 2 emissions at 2.2%.a