| Sustainability Indicators | Unit | 2021 | 2022 | 2023 | 2024 | 2025 | 2025 Target |
|---|---|---|---|---|---|---|---|
| Environmental Policy & Management System | |||||||
| Capital Investment | Baht | 29,389,322 | 29,389,322 | 27,590,790.50 | 74,031,200.00 | Data collection in progress | |
| Operating Cost | Baht | n.d. | n.d. | n.d. | n.d. | n.d. | |
| Savings/Cost Avoidance | Baht | 25,846,780 | 25,846,780 | 16,044,195.49 | 5,820,188.53 | Data collection in progress | |
| Data Coverage (Operations) | Percent | 100 | 100 | 50.00 | 100.00 | 100.00 | |
| Proportion of investment in low-carbon service innovation to total AOT revenue | Percent | n.d. | n.d. | n.d. | n.d. | n.d. | |
| Number of Environmental Violations of Legal Regulations | Cases | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | |
| Number of Environmental Violations of Legal Regulations | Percentage | n.d. | n.d. | n.d. | n.d. | n.d. | |
| ISO 14001 Certification Coverage | Percentage | 16.67 | 16.67 | 16.67 | 16.67 | 16.67 | |
| Energy | |||||||
| Total Purchase Electricity | Baht | n.d. | n.d. | 2,557,770,560.26 | 2,299,276,467.76 | 2,291,040,406.90 | |
| Total Energy Consumption | Megawatt-hour | 457,268 | 784,905 | 974,738.58 | 597,544.36 | 604,145.00 | |
| Total Non-Renewable Energy Consumption | Megawatt-hour | n.d. | n.d. | n.d. | n.d. | n.d. | |
| Total Renewable Energy Consumption | Megawatt-hour | 294 | 286 | 293.62 | n.d. | 342.00 | |
| Electricity | Megawatt-hour | 456,973 | 784,619 | 974,444.96 | 597,544.36 | 604,145.00 | |
| Heating | Megawatt-hour | n.d. | n.d. | n.d. | n.d. | n.d. | |
| Cooling | Megawatt-hour | 67,463 | 347,886 | n.d. | n.d. | n.d. | |
| Steam | Megawatt-hour | n.d. | n.d. | n.d. | n.d. | n.d. | |
| Energy use intensity | MWh/passenger | n.d. | n.d. | n.d. | 0.01 | 0.005 | |
| Total amount of Energy Sold | Megawatt-hour | n.d. | n.d. | n.d. | n.d. | n.d. | |
| Electricity | Megawatt-hour | n.d. | n.d. | n.d. | n.d. | n.d. | |
| Heating | Megawatt-hour | n.d. | n.d. | n.d. | n.d. | n.d. | |
| Cooling | Megawatt-hour | n.d. | n.d. | n.d. | n.d. | n.d. | |
| Steam | Megawatt-hour | n.d. | n.d. | n.d. | n.d. | n.d. | |
| Total External Energy Consumption (Upstream & Downstream) | Megawatt-hour | n.d. | n.d. | n.d. | n.d. | n.d. | |
| Investment in Energy-Saving Technologies and Developments | Bath | n.d. | n.d. | n.d. | n.d. | Data collection in progress | |
| Amount of energy reduction from Suvarnabhumi Airport's Solar Roof Project | Megawatt-hour | n.d. | n.d. | n.d. | n.d. | 9,529.95 | |
| Investment in Energy-Saving Technologies and Developments | ฺBath | n.d. | n.d. | n.d. | n.d. | Data collection in progress | |
| Amount of energy reduced from products or services purchased by AOT | Megawatt-hour | n.d. | n.d. | n.d. | n.d. | Data collection in progress | |
| Data Coverage (Operation) | Percent | 100 | 100 | 100 | 100 | 100 | |
| Waste & Pollutants | |||||||
| Total Waste | kilograms | 17,746,486 | 18,363,142 | 13,618,113.00 | 54,991,871 | 52,890,190 | |
| Non-Hazardous Waste | kilograms | n.d. | n.d. | n.d. | 54,859,545 | 52,742,970 | |
| Hazardous Waste | kilograms | n.d. | n.d. | n.d. | 132,326 | 147,220 | |
| Plastic Waste | kilograms | n.d. | n.d. | n.d. | n.d. | n.d. | |
| Total Waste Recycled/Reused | kilograms | 770,013.00 | 540,860.00 | 973,840.00 | 21,050,905 | 18,973,260 | |
| Hazardous Waste | kilograms | n.d. | n.d. | n.d. | n.d. | n.d. | |
| Non-Hazardous Waste | kilograms | n.d. | n.d. | n.d. | 21,050,905 | 18,973,260 | |
| Total Waste Disposed | kilograms | 16,976,473.00 | 18,009,056.00 | 12,644,273.00 | 49,590,994 | 52,890,190 | |
| Waste Landfill | kilograms | 2,115,490.00 | 3,129,412.00 | 4,938,029.00 | 33,805,954 | 14,256,960 | |
| Waste incinerated With Energy Recovery | kilograms | 14,860,980.00 | 14,879,650.00 | 7,706,244.00 | 15,785,040.00 | 15,764,800 | |
| Incinerated Without Energy Recovery | kilograms | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | |
| Others | kilograms | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | |
| Data Coverage (Operations) | Percent | 100.00 | 100.00 | 100.00 | 100.00 | 100.00 | |
| Pollutant | |||||||
| NOX | kilograms | n.d. | n.d. | n.d. | n.d. | n.d. | |
| SOX | kilograms | n.d. | n.d. | n.d. | n.d. | n.d. | |
| VOC | kilograms | n.d. | n.d. | n.d. | n.d. | n.d. | |
| Water | |||||||
| Total Water Withdrawal | Thousand cubic meters | 6,218.00 | 6,251.00 | 8,454.13 | 22,766.09 | 8,917.00 | |
| Surface water | Thousand cubic meters | 35.00 | n.d. | n.d. | 0.00 | 0.00 | |
| Groundwater | Thousand cubic meters | 309.00 | 333.00 | n.d. | 329.85 | 267.84 | |
| Brackish water | Thousand cubic meters | n.d. | n.d. | n.d. | 0.00 | 0.00 | |
| Water from business partners | Thousand cubic meters | 5,823.00 | 5,918.00 | n.d. | 9,341.24 | 8,917.33 | |
| Percentage of total water withdrawal in water-stressed areas | Percent | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | |
| Seawater | Thousand cubic meters | n.d. | n.d. | n.d. | 13,095.00 | 0.00 | |
| Proportion of total water consumption in water-stressed areas | Percent | n.d. | n.d. | n.d. | 0.00 | 0.00 | |
| Total Water Discharge | Thousand cubic meters | 1,463.00 | 1,734.00 | 980.43 | 3,840.49 | 4,547.43 | |
| Discharged to surface water | Thousand cubic meters | 1,463.00 | 1,734.00 | 980.43 | 3,840.49 | 4,547.43 | |
| Discharged to groundwater | Thousand cubic meters | n.d. | n.d. | n.d. | 0.00 | 100.00 | |
| Discharged to seawater | Thousand cubic meters | n.d. | n.d. | n.d. | 0.00 | 0.00 | |
| Managed by business partners | Thousand cubic meters | n.d. | n.d. | n.d. | 0.00 | 0.00 | |
| Percentage of total water discharge in water-stressed areas | Percent | n.d. | n.d. | n.d. | 0.00 | 0.00 | |
| Total Net Water Consumption | Thousand cubic meters | 4,755.00 | 4,783.00 | 7,521.00 | 9,186.44 | 9,185.17 | |
| Surface water | Thousand cubic meters | n.d. | n.d. | n.d. | 0.00 | 0.00 | |
| Groundwater | Thousand cubic meters | n.d. | n.d. | n.d. | 329.85 | 267.84 | |
| Brackish water | Thousand cubic meters | n.d. | n.d. | n.d. | 0.00 | 0.00 | |
| Water from partners | Thousand cubic meters | n.d. | n.d. | n.d. | 9,341.24 | 8,917.33 | |
| Percentage of total water withdrawal in water-stressed areas | Percent | n.d. | n.d. | n.d. | 0.00 | 0.00 | |
| Reused water | Thousand cubic meters | n.d. | n.d. | n.d. | 484.65 | 324.63 | |
| Data Coverage (Operations) | Percent | 100.00 | 100.00 | 100.00 | 100.00 | 100.00 | |
| Climate Strategy* | |||||||
| Total Direct GHG Emissions (Scope 1) | tonnes of CO2 equivalent | 2,499.25 | 2,819.64 | 2,941.58 | 2,882.54 | 2,774.78 | |
| Data Coverage (Operations) Scope 1 | Percent | 100.00 | 100.00 | 100.00 | 100.00 | 100.00 | |
| Total Indirect GHG Emissions (Scope 2) | tonnes of CO2 equivalent | 178,974.37 | 224,506.94 | 284,837.17 | 259,566.22 | 293,530.95 | |
| Data Coverage (Operations) Scope 2 | Percent | 100.00 | 100.00 | 100.00 | 100.00 | 100.00 | |
| GHG Emissions Scope 1 + 2 | tonnes of CO2 equivalent | 181,473.62 | 227,326.58 | 287,778.75 | 262,423.82 | 296,305.73 | |
| GHG Emission Scope 3 | tonnes of CO2 equivalent | 1,718,167.28 | 1,718,167.28 | 90,225.9 | 113,204.34 | 140,504.38 | |
| Tenant Energy Use | tonnes of CO2 equivalent | n.d./td> | n.d. | 90,225.9 | 113,204.34 | 140,504.38 | |
| GHG Emission Intensity | TCO2EQ/Passenger | n.d./td> | n.d. | n.d. | n.d. | n.d. | |
| GHG Removal in the Value Chain | tonnes of CO2 equivalent< | n.d./td> | n.d. | n.d. | n.d. | n.d. | |
| Carbon Credit | tonnes of CO2 equivalent< | n.d./td> | n.d. | n.d. | n.d. | n.d. | |
| Biodiversity | |||||||
| Total Operational Sites | Number | 6.00 | 6.00 | 6.00 | 6.00 | 6.00 | |
| Total Operational Sites with Biodiversity Impact Assessment | Number | 5.00 | 5.00 | 5.00 | 5.00 | 5.00 | |
| Total Operational Sites Near Critical Biodiversity Sites or with significant impact | Number | 2.00 | 2.00 | 2.00 | 2.00 | 2.00 | |
| Biodiversity Management Plan Data Coverage | Percent | 100.00 | 100.00 | 100.00 | 100.00 | 100.00 | |
Remarks:
- *Emission factors are based on the announcement by the Thailand Greenhouse Gas Management Organization (Public Organization) (TGO) dated April 2022. For energy consumption data from the chilled water system at Suvarnabhumi Airport, emission factors provided by District Cooling and Power Plant Co., Ltd. (DCAP) are applied. The assessment of AOT’s greenhouse gas emissions is conducted under the operational control approach within the airport operation boundary.
- **A new baseline was established in 2024 in accordance with AOT’s Sustainable Development Master Plan (Fiscal Year 2024–2028, Revised Edition for FY2024).