In 2025, Diodes 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).
Diodes has also provided a category-level breakdown for 7 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 | 214,291b | 233,875a | 272,139a | |
Total Scope 2 | ||||
Market-Based | 156,426b | 182,760a | 200,615a | |
Location-Based | 183,966b | 213,436a | 202,626a | |
Total Scope 3 | 1,185,183b | N/A | N/A | |
Total Scope 1 Revenue Intensity (tCO2e/$M) | 144.5887b | 178.378a | 163.7676a |
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In 2025, the total operational greenhouse gas (GHG) emissions of Diodes amounted to 398,257 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).b
Compared to 2024, the total operational greenhouse gas (GHG) emissions of Diodes decreased by 10.97%, showing that the company has made progress in taking action to reduce the climate impact of its operations.ab
In 2025, the total Scope 1 emissions of Diodes were 214,291 metric tons of CO₂ equivalent (tCO₂e).b
Since 2023, Diodes's Scope 1 emissions have decreased by 21.26%, reflecting a declining long-term trend in Scope 1 emissions over time.ab
Compared to the previous year (2024), Diodes's Scope 1 emissions decreased by 8.37%, highlighting the company's efforts to lower direct emissions from assets it owns or controls.ab
In 2025, Diodes reported Scope 2 greenhouse gas (GHG) emissions of 156,426 tCO₂e using the market-based method and 183,966 tCO₂e using the location-based method.b
Since 2023, Diodes's Scope 2 greenhouse gas (GHG) emissions (Location-Based) have remained relatively stable, indicating that Diodes's emissions have plateaued with no significant change in its energy consumption footprint.ab
Compared to the previous year (2024), Diodes's Scope 2 emissions (Location-Based) fell by 13.81% in 2025, showing that the company has made progress in taking action to reduce the climate impact of its energy consumption.ab
In 2025, Diodes reported its Scope 2 emissions using the market-based method and using the location-based method.b
In 2025, Diodes reported 1,185,183 metric tons of CO₂ equivalent (tCO₂e) of Scope 3 greenhouse gas (GHG) emissions, representing indirect emissions across its upstream and downstream value chain.b
The 2025 disclosure of Diodes includes a breakdown across 7 of the 15 Scope 3 categories defined by the GHG Protocol, up from 0 in 2024, reflecting improved emissions accounting practices and greater transparency across the company's value chainb
In 2025, Diodes reported total Scope 3 emissions of 1,185,183 metric tons of CO₂ equivalent (tCO₂e).b
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.b
In 2025, Diodes reported emissions for 7 out of the 15 Scope 3 categories defined by the GHG Protocol.a
This partial disclosure allows for some insight into the company's indirect impacts.
In 2025, the largest contributors to Diodes's Scope 3 emissions were:a
In 2025, Diodes reported Scope 1 greenhouse gas (GHG) emissions of 214,291 tCO₂e and total revenues of USD 1,482 millions. This translates into an emissions intensity of 144.59 tCO₂e per millions USD.b
In 2025, Diodes reported a Scope 1 emissions intensity of 144.59 tCO₂e per millions USD. Compared to the peer group median of 2.18, this places the company above its industry benchmark, indicating it is less carbon-efficient than most competitors.b
In 2025, Diodes ranked 25 out of 25 companies in its industry peer group, based on Scope 1 emissions intensity (measured in tCO₂e per millions USD).b
This places Diodes among the least efficient performers, with one of the highest emissions intensities in its sector.b
In 2025, Diodes reported a total carbon footprint of 1,583,440 metric tons of CO₂ equivalent (tCO₂e) across Scope 1, Scope 2, and Scope 3 emissions. This represents a 253.99% increase compared to 2024, suggesting a rise in emissions across its operations or value chain.ab
The largest contributor to Diodes's total carbon footprint was Scope 3 emissions, accounting for 74.85% of the company's total carbon footprint, followed by Scope 1 emissions at 13.53%.b