In 2025, ALSOK 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).
ALSOK has also provided a category-level breakdown for 11 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 | 37,244a | 39,183a | 40,032a | |
Total Scope 2 | ||||
Unspecified Calculation Method | 48,799a | 45,789a | 46,664a | |
Total Scope 3 | 250,421a | 262,374a | 194,698a | |
Total Scope 1 Revenue Intensity (tCO2e/$M) | 10.1203a | 11.3807a | 10.833a |
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In 2025, the total operational greenhouse gas (GHG) emissions of ALSOK amounted to 86,043 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 ALSOK increased by 1.26%, suggesting that the company faced challenges in reducing its emissions from its core operations.a
In 2025, the total Scope 1 emissions of ALSOK were 37,244 metric tons of CO₂ equivalent (tCO₂e).a
Since 2021, ALSOK's Scope 1 emissions have decreased by 8.54%, reflecting a declining long-term trend in Scope 1 emissions over time.ab
Compared to the previous year (2024), ALSOK's Scope 1 emissions decreased by 4.95%, highlighting the company's efforts to lower direct emissions from assets it owns or controls.a
In 2025, ALSOK reported Scope 2 greenhouse gas (GHG) emissions of 48,799 tCO₂e without specifying the calculation method.a
Since 2021, ALSOK's Scope 2 greenhouse gas (GHG) emissions (Unspecified Calculation Method) have remained relatively stable, indicating that ALSOK's emissions have plateaued with no significant change in its energy consumption footprint.ab
Compared to the previous year (2024), ALSOK's Scope 2 emissions (Unspecified Calculation Method) have remained relatively stable, indicating that ALSOK's emissions have plateaued with no significant change in its energy consumption footprint.a
In 2025, ALSOK reported its Scope 2 emissions using an unspecified methodology.a
In 2025, ALSOK reported 250,421 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 ALSOK includes a breakdown across 11 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, ALSOK reported total Scope 3 emissions of 250,421 metric tons of CO₂ equivalent (tCO₂e).a
Approximately 85.92% of these emissions originated from upstream activities such as purchased goods and capital goods, while 14.08% came from downstream activities like product use, distribution, and end-of-life treatment.a
Compared to the previous year (2024), ALSOK's Scope 3 emissions remained relatively stable, indicating that ALSOK's emissions have plateaued with no significant change in its value chain footprint.a
In 2025, ALSOK reported emissions for 11 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 ALSOK's Scope 3 emissions were:a
In 2025, ALSOK reported Scope 1 greenhouse gas (GHG) emissions of 37,244 tCO₂e and total revenues of USD 3,680 millions. This translates into an emissions intensity of 10.12 tCO₂e per millions USD.a
In 2025, ALSOK reported a Scope 1 emissions intensity of 10.12 tCO₂e per millions USD. Compared to the peer group median of 6.94, this places the company above its industry benchmark, indicating it is less carbon-efficient than most competitors.a
In 2025, ALSOK ranked 17 out of 25 companies in its industry peer group, based on Scope 1 emissions intensity (measured in tCO₂e per millions USD).a
ALSOK is therefore positioned in the mid-range of its industry, neither a clear leader nor a laggard in carbon efficiency.a
In 2025, ALSOK reported a total carbon footprint of 336,464 metric tons of CO₂ equivalent (tCO₂e) across Scope 1, Scope 2, and Scope 3 emissions. This represents a 3.13% decrease compared to 2024, indicating progress in reducing its overall greenhouse gas output.a
The largest contributor to ALSOK's total carbon footprint was Scope 3 emissions, accounting for 74.43% of the company's total carbon footprint, followed by Scope 2 emissions at 14.5%.a