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Environmental Data

Eco-friendly Activities

Eco-friendly Activity Indicators

Category Details Unit 2023 2024 2025
Environmental Audits Total Cases 57 50 79
First Half Cases 33 23 45
Second Half Cases 24 27 34
Ratio of Workplaces with Environmental Management System Certification1) % 100 100 100
Eco-friendly Investment Total Environmental Investment KRW million 11,572 33,017 8,116
Environmental Management Expenses KRW million 10,949 8,242 7,664
Investment in Eco-friendly New Businesses KRW million - 24,500 -
Investment in IoT Systems KRW million 613 260 451
Investment in Environmental Technologies2) KRW million 9.8 14 1
Purchase and Certification of Eco-friendly Products Green Certification Status3) Cases 3 5 4
Purchase of Eco-friendly Products and Services KRW 10 million 12,265 12,454 12,140
Number of Eco-friendly Products Purchased Cases 11 11 13
Eco-friendly Sales Performance4) KRW 10 million 47,830 78,426 66,311
Violations of Environmental Laws Number of Corporate Fines Imposed Cases 0 15) 0
Amount of Corporate Fines KRW 10 thousand 0 30 0

1) Represents 100% of the workplaces subject to environmental performance disclosure.

2) Expenses for maintaining environment-related patents and obtaining Green Technology Certification

3) Green Building Certification

4) Eco-friendly sales performance is calculated based on green buildings and the cost of eco-friendly materials used.

5) The case involved a violation of the Clean Air Conservation Act in 2021. As the ruling became final in 2024, it is reported based on the date on which the final judgment was rendered. The matter had no impact resulting from the case.

Greenhouse Gas and Energy

Greenhouse Gas Emissions

Category Details Unit 2023 2024 2025
Total Greenhouse Gas Emissions1) tCO₂eq 13,294 13,338 15,017
Scope 1 Head Office tCO₂eq 404 354 452
Business Sites tCO₂eq 26 19 22
Construction Sites tCO₂eq 5,037 5,132 5,732
Scope 2 Head Office tCO₂eq 218 217 206
Business Sites tCO₂eq 7 13 20
Construction Sites tCO₂eq 7,602 7,602 8,585
Greenhouse Gas Emissions Intensity(Based on Separate Revenue) tCO₂eq/KRW 100 million 0.89 0.92 0.91
Ratio of Workplaces Disclosing Greenhouse Gas Emissions % - - 100
Scope 32) Category 1. Purchased Goods and Services3) tCO₂eq 54,500 48,569 374,591
Category 2. Capital Goods tCO₂eq - - 14
Category 3. Fuel- and Energy-related Activities tCO₂eq - - 1,262
Category 5. Waste Generated in Operations tCO₂eq - - 1,283
Category 6. Business Travel tCO₂eq - - 47
Category 7. Employee Commuting tCO₂eq - - 1,038
Total Other Indirect Greenhouse Gas Emissions tCO₂eq 54,500 48,569 378,234
Greenhouse Gas Emissions Intensity (Based on Separate Revenue)3) tCO₂eq/KRW 100 million 4.55 4.25 23.90

HL D&I Halla calculates its greenhouse gas emissions in accordance with the principles set forth in the Guidelines for Reporting and Certification of Emissions under the Greenhouse Gas Emissions Trading Scheme (Ministry of Environment Notice No. 2023-221).

2) Reflects the GHG Protocol calculation standards.

3) Emissions increased due to the expanded Scope 3 calculation boundary in 2025.

Greenhouse Gas Emissions from Subsidiaries1)

Category Details Unit 2023 2024 2025
Total Greenhouse Gas Emissions tCO₂eq - - 876
Scope 1 Mokpo NewPort Terminal tCO₂eq - - 12
HL Logis & Co. tCO₂eq - - 48
HL Ecotech tCO₂eq - - 19
Scope 2 Mokpo NewPort Terminal tCO₂eq - - 511
HL Logis & Co. tCO₂eq - - 265
HL Ecotech tCO₂eq - - 22

1) Beginning in 2025, HL D&I Halla separately calculates and discloses the greenhouse gas emissions of its subsidiaries—Mokpo NewPort Terminal, HL Logis & Co., and HL Ecotech. Emissions are calculated in accordance with the Guidelines for Reporting and Certification of Emissions under the Greenhouse Gas Emissions Trading Scheme (Ministry of Environment Notice No. 2023-221).

Energy

Category Details Unit 2023 2024 2025
Excluding Subcontractors Total Non-renewable Energy Consumption Total TJ 245 245 279
Gasoline TJ 4 3 3
Butane (LPG) TJ 0 0.006 0.06
Brown Coal (Lignite) TJ 2 2 3
Kerosene TJ 25 16 28
Diesel TJ 48 57 53
Propane (LPG) TJ 0 0 0.12
Electricity TJ 164 163 184
Purchased Heat1) TJ - - 0.65
LNG TJ 2 2 7
Renewable Energy Consumption2) TJ - 0.002 0.01
Energy Consumption Intensity(Based on Separate Revenue) TJ/KRW 100 million 0.016 0.017 0.017
Including Subcontractors Energy Consumption by Subcontractors TJ 789 701 561
Energy Consumption Intensity (Based on Separate Revenue) TJ/KRW 100 million 0.069 0.065 0.051

1) Purchased heat was first consumed in 2025.

2) Renewable energy consumption has been managed since 2024.

Pollutants and Resource Management

Water Consumption1)

Category Details Sites of Use Unit 2023 2024 2025
Water Consumption Total ton 177,176 166,736 160,418
By Region Seoul Metropolitan Area - 54,820 98,676
Non-metropolitan Areas - 111,916 61,742
By Water Source Municipal Water 116,123 120,410 119,850
River Water 44,325 46,168 40,568
Groundwater 16,728 158 0
Percentage of Business Sites Disclosing Water Consumption Data2) % 100 100 100
Number of Incidents Exceeding Hazardous Substance Limits in Water Cases 0 0 0

1) Due to the nature of the construction industry, the figures include water used for concrete placement and fugitive dust reduction. Water consumption is equivalent to water withdrawal.

2) Head office/business sites/construction sites

Water Pollutants1)

Category Unit 2023 2024 2025
COD Emissions ton 0 0 0
TOC Emissions 0 0 0.17
BOD Emissions 0.28 0.98 0.03
SS Emissions 0.46 0.66 0.07

1) First installation of an in-house wastewater treatment facility in 2025 (pollutant concentration management standard: 20 ppm or below)

Hazardous Substances

Category Details Unit 2023 2024 2025
Ozone-depleting Substances1) Production tCFC-11eq 0 0 0
Imports 0 0 0
Exports 0 0 0

1) There are no sources of air pollutants or ozone-depleting substances, including Freon gases, at HL D&I Halla’s head office or construction sites. Refrigerators and air conditioners, which are typical potential sources of Freon gas emissions, do not include any products that leak Freon gas during operation. HL D&I Halla uses environmentally friendly refrigerants in refrigerators and air conditioners and, in principle, prohibits the use of all products that emit Freon gases.

Construction Materials

Category Details Unit 2023 2024 2025
Materials Used Rebar ton 54,490 66,387 58,568
H-BEAM ton 16,089 8,757 4,367
Sheet-PILE ton 30 0 531
Ready-mixed Concrete m³ 628,136 794,828 818,686
Aggregate m³ 129,247 91,921 219,469
Asphalt Concrete ton 23,642 13,781 8,477
Cement ton 98,080 86,688 71,012
Materials Made with Recycled Raw Materials Rebar ton 54,490 66,387 58,568
Recycled Aggregate m³ 13,903 11,943 21,148
Recycled Asphalt Concrete ton 0 403 786
Cement1) ton 26,557 52,108 3,213

1) Slag cement, fly ash, and admixtures

Waste Generation and Treatment

Waste Generation and Treatment

Category Details Unit 2023 2024 2025
Waste Generated Total Waste Generated ton 87,133 68,129 94,111
Construction Waste 86,006 65,916 92,549
Business Site Waste 1,093 2,213 1,561
Designated Waste 34 0 1
Waste Treated Total Waste Treated 87,133 68,129 94,111
Incineration 0 1 0.71
Landfill 01) 4 0
Recycling 87,133 68,125 94,110
Construction Waste Generated by Type Construction Waste Materials2) 48,813 39,601 61,358
Waste Wood 2,334 2,472 2,341
Waste Synthetic Resin 1,756 1,211 1,331
Mixed Construction Waste 27,445 21,736 25,405
Other3) 5,658 897 2,113
General Business Site Waste Generated by Type Forestry Waste Wood 1,047 539 1,449
Waste Synthetic Resin 46 166 0
Other4) - 1,508 112
Designated Business Site Waste Generated by Type Waste Paint and Lacquer 1 0 0
Waste Oil 32 0 0
Waste Asbestos 0 0 0
Other Waste Oil 0 0 0
Other5) 0 0 1
Treatment of Construction Waste by Type Incineration 0 1 0
Landfill 0 0 0
Recycling 86,006 65,916 92,549
Treatment of Business Site Waste by Type Incineration 0 0 0
Landfill 0 4 0
Recycling 1,093 2,209 1,561
Treatment of Designated Waste by Type Incineration 0 0 1
Landfill 0 0 0
Recycling 34 0 0
Waste Recycling Waste Recycling Rate % 100 100 100
Percentage of Business Sites Disclosing Waste Emissions Data 100 100 100

1) In 2023, 30 kg of waste was landfilled at the Yangpyeong Yanggeun-ri construction site.

2) Waste concrete, waste asphalt concrete, waste bricks, waste blocks, waste roof tiles, and waste construction stones

3) Waste construction sludge and waste boards

4) Waste tires, construction waste stones, other combustible waste materials, and other plant-based waste materials

5) Plastic sheets, dust masks, work clothes, etc. used for asbestos removal work

Biodiversity

Distribution of Endangered Wildlife Species Near Biodiversity Risk Assessment Areas1)

Category Seoul Mapo Gyeonggi Suwon Gyeonggi Siheung Jeju Gyeonggi Hanam Gyeonggi Hwaseong Gyeongnam Jinju Jeonnam Mokpo Jeonbuk Buan Gyeongnam Changwon
Mammals 0 0 0 0 1 1 3 1 4 3
Birds 2 6 11 34 10 27 9 4 25 22
Amphibians and Reptiles 1 2 3 2 1 3 2 1 2 0
Fish 0 0 0 0 0 0 2 0 1 0
Insects 0 0 1 6 1 1 1 1 3 1
Invertebrates 0 0 1 9 0 1 0 0 3 3
Terrestrial Plants 0 1 1 20 1 2 2 2 6 2
Total 3 9 17 71 14 35 19 8 44 31

1) Based on the distribution of endangered wildlife species by province and metropolitan city presented in the Statistical Data Book on Endangered Wildlife published by the National Institute of Ecology

Protected Species

Category Unit 2023 2024 2025
Number of Protected Species Identified in Project Areas1) species 132) 333) 30

1) Endangered species and legally protected species in Korea

2) Dwarf eelgrass beds, narrow-mouthed toad, gold-spotted pond frog, Saunders’s gull, Chinese egret, whooper swan, Oriental stork, Eurasian oystercatcher, Eurasian otter, narrow-mouthed toad, golden eagle, salamander, Mandarin duck, and Pelatantheria scolopendrifolia

3) Gold-spotted pond frog, Suweon tree frog, common kestrel, leopard cat, Eurasian otter, Eurasian hobby, narrow-mouthed toad, golden eagle, peregrine falcon, Eurasian sparrowhawk, cinereous vulture, Saunders’s gull, Japanese reed bunting, Chinese egret, Oriental cuckoo, osprey, Chinese sparrowhawk, black kite, osprey, Eastern marsh harrier, northern goshawk, Steller’s sea eagle, white-tailed eagle, greater spotted eagle, Pelatantheria scolopendrifolia