In 2025, ASX 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).
ASX has also provided a category-level breakdown for 1 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 | 37a | 34a | 50b | |
Total Scope 2 | ||||
Market-Based | 60a | 53a | 63c | |
Location-Based | 11,803a | 12,831a | 12,676c | |
Total Scope 3 | 2,919a | 2,804a | 2,420c | |
Total Scope 1 Revenue Intensity (tCO2e/$M) | 0.0498a | 0.0485a | 0.069b |
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In 2025, the total operational greenhouse gas (GHG) emissions of ASX amounted to 11,840 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 ASX decreased by 7.97%, showing that the company has made progress in taking action to reduce the climate impact of its operations.a
In 2025, the total Scope 1 emissions of ASX were 37 metric tons of CO₂ equivalent (tCO₂e).a
Compared to the previous year (2024), ASX's Scope 1 emissions increased by 8.82%, suggesting that the company faced challenges in reducing emissions from its directly owned or controlled operations.a
In 2025, ASX reported Scope 2 greenhouse gas (GHG) emissions of 60 tCO₂e using the market-based method and 11,803 tCO₂e using the location-based method.a
Compared to the previous year (2024), ASX's Scope 2 emissions (Location-Based) have remained relatively stable, indicating that ASX's emissions have plateaued with no significant change in its energy consumption footprint.a
In 2025, ASX reported its Scope 2 emissions using the market-based method and using the location-based method.a
In 2025, ASX reported 2,919 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 ASX includes a breakdown across 1 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, ASX reported total Scope 3 emissions of 2,919 metric tons of CO₂ equivalent (tCO₂e).a
Approximately 100% of these emissions originated from upstream activities such as purchased goods and capital goods, while 0% came from downstream activities like product use, distribution, and end-of-life treatment.a
Since 2019, ASX's Scope 3 emissions have increased by 285.09%, reflecting a rising long-term trend in Scope 3 emissions over time.ad
Compared to the previous year (2024), ASX's Scope 3 emissions remained relatively stable, indicating that ASX's emissions have plateaued with no significant change in its value chain footprint.a
In 2025, ASX reported emissions for 1 out of the 15 Scope 3 categories defined by the GHG Protocol.a
The limited disclosure restricts visibility into specific emission sources across the company's value chain.
In 2025, the largest contributors to ASX's Scope 3 emissions were:a
In 2025, ASX reported Scope 1 greenhouse gas (GHG) emissions of 37 tCO₂e and total revenues of USD 743 millions. This translates into an emissions intensity of 0.05 tCO₂e per millions USD.a
In 2025, ASX reported a Scope 1 emissions intensity of 0.05 tCO₂e per millions USD. Compared to the peer group median of 0.16, this places the company below its industry benchmark, indicating it is more carbon-efficient than most competitors.a
In 2025, ASX ranked 7 out of 25 companies in its industry peer group, based on Scope 1 emissions intensity (measured in tCO₂e per millions USD).a
ASX is therefore positioned in the mid-range of its industry, neither a clear leader nor a laggard in carbon efficiency.a
In 2025, ASX reported a total carbon footprint of 14,759 metric tons of CO₂ equivalent (tCO₂e) across Scope 1, Scope 2, and Scope 3 emissions. This represents a 5.81% decrease compared to 2024, indicating progress in reducing its overall greenhouse gas output.a
The largest contributor to ASX's total carbon footprint was Scope 2 emissions, accounting for 79.97% of the company's total carbon footprint, followed by Scope 3 emissions at 19.78%.a