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ESG Performance

Key ESG Performances

S-OIL has continued to enhance ESG value by addressing climate change, managing environmental impacts, strengthening its occupational safety and health management system, promoting workforce diversity, and upholding compliance and ethical management. Going forward, we will consistently manage our key ESG issues and work together with our stakeholders, including shareholders, employees, customers, suppliers, and local communities, to create long-term corporate value and achieve sustainable growth.

GHG Emissions

Unit : ktCO2eq

Air Pollutant Emissions

Unit : ton

Waste Recycle Rate / Water Recycle Rate

Unit : %

Waste Recycle Rate and Water Recycle Rate (Unit : %) : 2022 to 2025
Category 2022 2023 2024 2025
Waste Recycle Rate 82.9 88.6 88.0 86.3
Water Recycle Rate 35.4 36.1 36.8 36.0
  • Minor differences may occur due to rounding
GHG Emissions

(Unit : ktCO2eq)

GHG Emissions : Category, 2022, 2023, 2024, 2025 Table.
Category 2022 2023 2024 2025
Scope 1 7,905 7,925 7,954 7,938
Scope 2 1,806 1,773 1,878 1,856
Total 9,710 9,698 9,832 9,794
Energy Consumption

(Unit : TJ)

Energy Consumption : Category, 2022, 2023, 2024, 2025 Table.
Category 2022 2023 2024 2025
Total energy consumption 126,115 125,063 237,576 129,081
Air Pollutant Emissions

(Unit : ton)

Air Pollutant Emissions : Category, 2022, 2023, 2024, 2025 Table.
Category 2022 2023 2024 2025
Nitrogen oxides (NOx) 4,908 4,005 3,136 2,571
Sulfur oxides (SOx) 425 424 438 398
Dust 12 11 13 14
Water Pollutant Emissions

(Unit : ton)

Water Pollutant Emissions : Category, 2022, 2023, 2024, 2025 Table.
Category 2022 2023 2024 2025
Biochemical Oxygen Demand (BOD) 50.2 48.9 36.3 37.4
Total Organic Carbon (TOC) 77.6 78.8 85.9 65.0
Suspended Solids (SS) 32.6 32.4 28.9 30.3
Waste

(Unit : ton)

Waste : Category, 2022, 2023, 2024, 2025 Table.
Category 2022 2023 2024 2025
General Waste Generated 33,538 37,293 38,337 41,233
Recycled/reused 28,774 32,706 35,965 39,102
Disposed 4,764 4,587 2,372 2,131
Designated Waste Generated 19,593 21,903 25,172 27,629
Recycled/reused 15,884 20,097 20,106 20,306
Disposed 3,709 1,806 5,066 7,323
  • The data is primarily based on the Onsan Refinery. For information on other sites, please refer to the ESG Report.
Environmental Compliance

(Unit : cases, KRW in million)

Environmental Compliance : Category, 2022, 2023, 2024, 2025 Table.
Category 2022 2023 2024 2025
No. of violations 11) 0 0 0
Monetary value of violations 0 0 0 0
  • The data only reflects the case that exceeds USD 10,000
  • 1) Fire incident occurred in the #2 Alkylation unit in 2022; corporate fine imposed in Jan. 2026 and currently under appeal; preventive measures have been implemented.
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