Environmental Performance
Commitment / management guideline
Low Carbon Skies by Bangkok Airways
Bangkok Airways is committed to creating a sustainable aviation future through our "Low Carbon Skies" initiative, reflecting our environmental responsibility and care for our planet.
Join us in creating sustainable skies so that future generations can experience the beauty of our world just as we do today.
Climate Crisis Management
Target
Management Guideline
The Company drives strategies to support greenhouse gas emissions reduction under the “Low Carbon Skies by Bangkok Airways” initiative, focusing on enhancing aviation operational efficiency, fuel efficiency, and stakeholder engagement to support the aviation industry’s Net Zero Carbon Emissions 2050 goal.
Operating Results
Carbon Offsetting and Reduction Scheme for International Aviation Project (CORSIA)
The Company continuously reports carbon dioxide emissions data to the Civil Aviation Authority of Thailand (CAAT) on an annual basis. Such data is verified by CAAT-accredited verifiers under the Carbon Offsetting and Reduction Scheme for International Aviation (CORSIA) established by the International Civil Aviation Organization (ICAO). This supports the global objective of stabilizing net carbon emissions from international civil aviation through carbon offsetting and emissions reduction mechanisms.
Fuel Efficiency Project
The Company places strong emphasis on efficient aviation fuel management in accordance with its Fuel Efficiency and Greenhouse Gas Emissions Reduction from Flight Operations Policy. As fuel represents a major operating cost and a key contributor to greenhouse gas emissions in the aviation sector, the Company has continuously implemented Operational Improvement measures under its Fuel Efficiency Program across all stages of flight operations.
These initiatives aim to reduce fuel consumption per flight operation while maintaining the highest level of safety in accordance with international standards. The operational measures include the following:
- 1Single Engine Taxi Out
- 2Single Engine Taxi In
- 3Idle Thrust Reverser
- 4Optimum Flap
- 5Aircraft Weight Minimization
The operational results for 2025 are presented in the table below.
| Operation Improvements | Jan-25 | Feb-25 | Mar-25 | Apr-25 | May-25 | Jun-25 | Jul-25 | Aug-25 | Sep-25 | Oct-25 | Nov-25 | Dec-25 | Total |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Single Engine Taxi Out | 183.28 | 125.45 | 71.42 | 103.02 | 71.42 | 84.37 | 92.27 | 71.42 | 87.22 | 92.27 | 103.02 | 183.28 | 1,268.42 |
| Single Engine Taxi In | 111.55 | 92.59 | 78.68 | 62.25 | 147.26 | 58.78 | 60.67 | 60.67 | 98.28 | 49.30 | 92.59 | 60.67 | 973.28 |
| Idle Thrust Reverser | 48.66 | 79.32 | 85.32 | 48.66 | 110.28 | 78.68 | 54.35 | 60.04 | 48.66 | 60.04 | 48.66 | 60.04 | 782.73 |
| Optimum Flap | 27.49 | 50.24 | 49.61 | 28.76 | 30.65 | 30.65 | 31.60 | 33.18 | 27.49 | 33.18 | 27.49 | 33.18 | 403.53 |
| Weight Minimization | 24.18 | 22.34 | 22.89 | 20.57 | 18.58 | 17.62 | 20.18 | 21.32 | 16.88 | 17.01 | 16.74 | 19.90 | 238.21 |
| TOTAL | 395.16 | 369.94 | 307.92 | 263.26 | 378.19 | 270.10 | 259.08 | 246.63 | 278.53 | 251.80 | 288.50 | 357.07 | 3,666.18 |
Unit: tCO2e (tons of carbon dioxide equivalent)
Operational efficiency performance is presented in the table below.
| Operation Improvements | Jan-25 | Feb-25 | Mar-25 | Apr-25 | May-25 | Jun-25 | Jul-25 | Aug-25 | Sep-25 | Oct-25 | Nov-25 | Dec-25 | Average |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Single Engine Taxi Out | 99.40% | 90.60% | 98.20% | 95.00% | 98.20% | 94.50% | 98.50% | 98.20% | 99.40% | 95.60% | 95.00% | 99.40% | 97.24% |
| Single Engine Taxi In | 98.40% | 99.60% | 96.10% | 91.30% | 96.10% | 96.70% | 98.60% | 98.60% | 93.40% | 98.40% | 96.00% | 98.60% | 97.61% |
| Idle Thrust Reverser | 91.50% | 90.80% | 91.80% | 92.90% | 91.90% | 91.90% | 87.30% | 94.30% | 91.50% | 94.30% | 91.50% | 94.30% | 91.98% |
| Optimum Flap | 96.60% | 97.10% | 97.00% | 97.30% | 96.40% | 96.40% | 95.30% | 98.20% | 96.60% | 98.20% | 96.60% | 98.20% | 96.99% |
| Average | 96.48% | 94.53% | 95.73% | 94.13% | 95.66% | 94.88% | 95.18% | 97.33% | 96.70% | 97.60% | 95.68% | 97.63% | 95.99% |
Based on the 2025 operational performance results, the Single Engine Taxi Out measure was identified as the most effective initiative, achieving an average fuel reduction of approximately 100 tons per month.
In addition to Operational Improvement measures, the Company continued to implement various initiatives under its Fuel Efficiency Program through the analysis of aircraft fuel efficiency data to assess the alignment between flight plans and actual flight operations for each flight.
The Company also implemented Aircraft Weight Minimization measures, including the use of Electronic Flight Bag (EFB) systems in place of paper-based flight documents, as well as optimizing potable water loading based on flight distance and passenger volume for each route. In addition, fuel planning was optimized by considering route characteristics, aircraft performance, weather conditions, and other relevant factors to minimize unnecessary excess fuel loading while maintaining the highest safety standards in flight operations.
Furthermore, the Company adopted the Post Flight Data Business Intelligence system to monitor compliance rates of fuel efficiency measures for each flight operation, including Single Engine Taxi procedures and Idle Thrust Reverser practices. The Company also continued to promote a fuel efficiency culture among pilots and relevant operational departments to support participation in reducing greenhouse gas emissions from aviation operations.
Other Energy Efficiency Targets
- Maintain fuel deviation rates from flight operation plans at no more than 5% for the Airbus fleet and 15% for the ATR fleet to improve fuel efficiency and reduce energy losses from flight operations.
- Develop quantitative electricity consumption targets at the corporate level to strengthen energy management through clear performance indicators and systematic monitoring.
- Assess the feasibility of developing a solar farm project to increase the share of clean energy used in the Company's operations in the future.
The Company’s Greenhouse Gas Emissions
Note: The greenhouse gas emissions data for 2023–2025 was verified by ECEE Co., Ltd., categorized by the following scopes:
| 2025 | 2024 | 2023 | |
|---|---|---|---|
| Total Greenhouse Gas Emissions (tCO2e) |
368,727.00 | 362,814.00 | 293,222.00 |
| Greenhouse Gas Emissions – Scope 1 (tCO2e) |
322,968.00 | 318,255.00 | 288,794.00 |
| Greenhouse Gas Emissions – Scope 2 (tCO2e) |
4,643.00 | 4,759.00 | 4,428.00 |
| Greenhouse Gas Emissions – Scope 3 (tCO2e) |
41,116.00 | 39,800.00 |
Waste Management
Target
Management Guideline
The Company acknowledges the importance of effective and environmentally responsible waste management. A comprehensive waste management system is being developed in alignment with Circular Economy principles, aiming to minimize environmental impact, maximize resource recovery, and achieve zero landfill disposal by 2050. In parallel, the Company fosters a sustainability-driven organizational culture across all operational levels to embed long-term environmental responsibility into its core business practices.
Operating Results
- The Company participated in the “Ting To Trash” initiative to promote waste segregation and sustainable waste management, aiming to reduce landfill waste and increase resource recovery. The Company also received recognition as a participating organization in the project from the Thai Listed Companies Association in collaboration with the Securities and Exchange Commission of Thailand (SEC).
- Developed internal waste segregation bins by categorizing waste into seven categories to improve recycling efficiency and proper waste management, including: 1) general waste, 2) aluminum and metals, 3) plastic bottles, 4) rigid plastics, 5) stretch plastics, 6) glass bottles, and 7) paper. Additional dedicated waste bins for specific waste types were also installed in appropriate areas to support proper and safe waste disposal.
- Allocated proceeds from the sale of recyclable waste to the “Waste Separation for Benefits” project to support social and environmental activities, totaling THB 58,893.
- In 2025, waste generated from meal production and inflight catering services that was segregated and sent for recycling included: 1) paper: 51,113.90 kilograms, 2) aluminum: 8,409.05 kilograms, and 3) plastics: 25,430.20 kilograms.
- A total of 6,729.43 kilograms of label-free drinking water bottles, equivalent to more than 448,629 bottles, were delivered to Circular World Co., Ltd. for conversion into recycled plastic fibers. Part of the recycled material was further used to produce polo shirts, employee lanyards, and blankets distributed to students and local communities.
- More than 500 unused uniforms, together with over 50 kilograms of label-free drinking water bottles, were upcycled into 500 blankets distributed to students and local communities. The initiative contributed to a reduction of 358 kilograms of carbon dioxide emissions, water savings of 9,193 liters, and energy savings of 2,230 kilowatt-hours.
- Waste segregation results from the “Bangkok Airways Boutique Series 2025” running events were summarized as follows:
- Recyclable waste totaling 444.61 kilograms was delivered to municipalities and local communities for resale to support community development activities.
- Organic waste, including food waste, totaling 215.99 kilograms was processed through food waste composting machines, with the resulting fertilizer distributed to local communities for agricultural soil improvement. Organic waste not processed through the composting system was delivered to local communities for use as animal feed.
The volume of organizational waste segregated for recycling
at the Head Office, Bangkok Airways Operations Center (BAOC), office buildings, and passenger lounges at Suvarnabhumi Airport, Samui Airport, Sukhothai Airport, and Trat Airport can be summarized by waste category as follows:
Operating Results 2025
Paper
Plastic
Aluminum
Glass
Iron
Remark: Waste segregation for recycling contributed to a reduction of 117,515.02 kgCO2e in greenhouse gas emissions.
Total Waste Generation
| 2025 | 2024 | 2023 | |
|---|---|---|---|
| Total Waste Generated (kg) | 584,964.81 | 440,100.87 | 399,399.80 |
| Non-Hazardous Waste (kg) | 583,437.81 | 440,100.87 | 399,144.10 |
| Hazardous Waste (kg) | 1,527.00 | 0.00 | 255.70 |
Volume of Waste Reused/ Recycled
| 2025 | 2024 | 2023 | |
|---|---|---|---|
| Total Waste Generated (kg) | 42,558.90 | 27,504.30 | 19,426.10 |
Inflight Waste Journey
The Company, in collaboration with Bangkok Air Catering Co., Ltd., records waste volumes generated from meal production for passenger services and inflight catering operations. Waste is collected at designated collection points, segregated by category, and delivered for proper disposal. In 2025, the volume of waste segregated and sent for recycling can be summarized as follows:
Operating Results 2025
Paper
Aluminum
Total plastics
A total of 6,729.43 kilograms of label-free drinking water bottles, equivalent to more than 448,629 bottles, were delivered to Circular World Co., Ltd. to be converted into recycled plastic fibers. Part of the recycled materials was further used to produce polo shirts, employee lanyards, and blankets distributed to students and local communities.
Recycle/Upcycle Waste from Business Operations
In 2025, more than 500 unused uniforms, together with over 50 kilograms of label-free drinking water bottles, were recycled into 500 blankets distributed to students and local communities. This initiative contributed to a reduction of 358 kilograms of carbon dioxide emissions, water savings of 9,193 liters, and energy savings of 2,230 kilowatt-hours.
Waste Management at Bangkok Airways Boutique Series 2025
- Coordinated with vendors, food outlets, and beverage operators to reduce waste at the source Requested cooperation in minimizing the use of non-biodegradable materials such as foam containers and single-use plastics
- Requested cooperation in minimizing the use of non-biodegradable materials such as foam containers and single-use plastics
- Planned waste segregation points for each event area
- Assessed the types of waste expected to be generated during the event
- Evaluated the required number of waste segregation bins and designated appropriate locations to facilitate convenience for runners
- Monitored and managed waste disposal points throughout the event
- Assigned staff at waste disposal points to provide guidance to participants on proper waste disposal
- Collected full waste bins and transferred waste to the resource circulation station for further segregation
- Segregated waste and delivered it for proper disposal methods
| Waste Category | Waste Volume (kilograms) | Disposal Method |
|---|---|---|
| Recyclable Waste | 444.61 |
|
| Organic Waste (including food waste) | 215.99 |
|
Efficient use of resources and alternative energy
Target
Management Guideline
The Company conducted studies and prepared to use Sustainable Aviation Fuel (SAF) instead of Jet-A1, as both have the same chemical properties, meaning there is no need to modify aircraft engines when using this alternative biomass fuel.
Currently, the Company is closely monitoring guidelines for using alternative fuel in order to operate sustainable flights in alignment with the government’s policy and the readiness of fuel service providers. Thailand expects to begin using 1% alternative fuel in 2026, during which the Company is in the preparation phase to implement this plan in line with international measures and policies on sustainability cooperation.
Operating Results
The Company signed a Letter of Intent (LOI) with PTT Oil and Retail Business Public Company Limited (OR) to collaborate on the use of Sustainable Aviation Fuel (SAF) produced by Thailand’s domestic producers for the first time, for use in the Company’s flight operations.
The Company officially announced the use of Sustainable Aviation Fuel (SAF) on commercial flights operating from Bangkok (Suvarnabhumi) to international destinations including Phnom Penh, Siem Reap, Luang Prabang, and the Maldives, effective from 1 July 2025 onwards under the “Low Carbon Skies by Bangkok Airways” initiative. The initiative aims to reduce greenhouse gas emissions from business operations and support the advancement of Thailand’s green aviation industry. The use of SAF contributed to a total reduction of 35.35 tCO2e from flight operations, as presented in the table below.
| Alternative Fuel Sources | Jan-25 | Feb-25 | Mar-25 | Apr-25 | May-25 | Jun-25 | Jul-25 | Aug-25 | Sep-25 | Oct-25 | Nov-25 | Dec-25 | Total |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1% Blended SAF | - | - | - | - | - | - | 5.57 | 4.02 | 4.70 | 6.59 | 8.31 | 6.16 | 35.35 |
| Total | - | - | - | - | - | - | 5.57 | 4.02 | 4.70 | 6.59 | 8.31 | 6.16 | 35.35 |
The Company participated in the signing of a Memorandum of Understanding (MOU) on the promotion of Sustainable Aviation Fuel (SAF) adoption together with the Civil Aviation Authority of Thailand (CAAT) and a total of eight Thai airlines. The agreement supports the use of SAF in international aviation operations under CORSIA routes at a blending ratio of 0.5%–1% in 2026 and 1% from 2027 onwards.
Promoting Awareness of Resource Efficiency
The Company encourages passengers to use Digital Boarding Passes in place of paper boarding passes as part of its efforts to reduce resource consumption and minimize environmental impacts from passenger service operations.
In 2025, a total of 1,956,273 Digital Boarding Passes were used in place of paper boarding passes, contributing to a reduction in paper consumption of more than 5,928.1 kilograms. This initiative helped reduce resource use at the source while promoting passenger participation in environmental stewardship.
Pollution Management
Target
Management Guideline
The Company has established pollution management practices for Samui Airport, Sukhothai Airport, and Trat Airport, with operations conducted in compliance with applicable environmental laws, regulations, and requirements. The Company places importance on pollution prevention, environmental impact reduction, and effective waste management to promote efficient resource utilization and support operations in line with sustainable development principles.
In addition, the Company continuously implements measures to monitor, supervise, and control environmental impacts, while promoting improvements in pollution prevention efficiency, the reduction of pollutant emissions, and the adoption of environmentally friendly innovations and technologies within operational processes.
Operating Results
NO2 Emissions Data
| Year | Samui Airport (ppm) | Sukhothai Airport (ppm) | Trat Airport (ppm) |
|---|---|---|---|
| 2023 | 0.001-0.010 | - | 0.003-0.013 |
| 2024 | 0.003-0.018 | 0.001-0.021 | 0.001-0.035 |
| 2025 | 0.002-0.018 | 0.0029-0.0107 | 0.0034-0.0092 |
Remark: The presented data represents the results of 1-hour average nitrogen dioxide (NO2) measurements within airport areas. Data for Sukhothai Airport in 2023 is not available, as the airport was still operating under the environmental monitoring measures specified in the previous Environmental Impact Assessment (EIA) report, which did not require NO2 monitoring within the airport area. Sukhothai Airport began conducting NO2 measurements within the airport area under the revised EIA report starting from 2024 onwards.
SO2 Emissions Data
| Year | Samui Airport (ppm) | Sukhothai Airport (ppm) | Trat Airport (ppm) |
|---|---|---|---|
| 2023 | - | - | 0.002-0.003 |
| 2024 | - | - | 0.002-0.003 |
| 2025 | - | - | 0.0014-0.0021 |
Remark: The presented data represents the results of 24-hour average sulfur dioxide (SO2) measurements within airport areas. Samui Airport and Sukhothai Airport are not required to conduct SO2 monitoring under the environmental impact monitoring measures specified in their Environmental Impact Assessment (EIA) reports; therefore, no related data is available.
VOC Emissions Data: Benzene
| Year | Samui Airport µg/m3 | Sukhothai Airport | Trat Airport |
|---|---|---|---|
| 2023 | - | - | - |
| 2024 | - | - | - |
| 2025 | 0.51-1.53 | - | - |
Remark: The presented data represents the results of 24-hour average benzene measurements within Samui Airport. Benzene is one of the Volatile Organic Compounds (VOCs). Under the environmental impact monitoring measures specified in the Environmental Impact Assessment (EIA) report, VOC monitoring is required only at Samui Airport. Sukhothai Airport and Trat Airport are not required to conduct VOC monitoring; therefore, no related data is available.
For this report, the Company has chosen to disclose only benzene measurement results, as benzene is a significant VOC parameter commonly used as an indicator for air quality assessment, in order to ensure concise and appropriate disclosure.
PM10 Data
| Year | Samui Airport mg/m3 | Sukhothai Airport mg/m3 | Trat Airport mg/m3 |
|---|---|---|---|
| 2023 | 0.013-0.034 | - | 0.014-0.063 |
| 2024 | 0.018-0.027 | 0.014-0.036 | 0.007-0.032 |
| 2025 | 0.014-0.022 | 0.020-0.036 | 0.017-0.019 |
Remark: The presented data represents the results of 24-hour average measurements of particulate matter with a diameter of 10 micrometers or less (PM10) within airport areas. Data for Sukhothai Airport in 2023 is not available, as the airport was still operating under the environmental monitoring measures specified in the previous Environmental Impact Assessment (EIA) report, which did not require PM10 monitoring within the airport area. Sukhothai Airport began conducting PM10 monitoring within the airport area under the revised EIA report starting from 2024 onwards.
Water Management
Target
Management Approach
Under the “Low Carbon Skies by Bangkok Airways” initiative, the Company places importance on efficient resource utilization, including effective water resource management alongside the reduction of environmental impacts arising from business operations.
The Company promotes responsible water consumption through water management practices focused on minimizing water loss, improving water use efficiency, and encouraging water reuse in appropriate activities. In addition, the Company emphasizes employee awareness and participation in responsible water usage, while supporting practices that help reduce water consumption across organizational activities.
For airport operations, the Company has adopted water management practices based on the 3Rs principle, together with various projects and initiatives aimed at reducing water loss and promoting water recirculation and reuse, including the following:
- Replacing conventional handwashing faucets with sensor-operated faucets, which, although more costly, contribute to sustainable water conservation
- Installing water meters at all water usage points to monitor and assess water losses from leakage
- Implementing a Zero Liquid Discharge (ZLD) system, a wastewater treatment process in which treated water is reused for irrigation within airport areas without being discharged externally after waste contaminants have been removed from the treatment process.
Operating Results
- Continued implementing water resource management measures with a focus on efficient water utilization and reducing water loss from operations
- Monitored and inspected water consumption within operational areas to help identify potential water loss points and support improvements in water use efficiency
- Implemented wastewater collection and treatment systems for activities within operational areas to minimize environmental impacts
- Reused treated wastewater for appropriate activities, such as irrigation within operational areas, to help reduce dependence on external water sources
- Reused treated wastewater for appropriate activities, such as irrigation within operational areas, to help reduce dependence on external water sources
| Water Consumption Volume | 2025 | 2024 | 2023 |
|---|---|---|---|
| Total water consumption (cubic meters) | 117,680.46 | 130,043.90 | 132,944.30 |
| Water consumption from municipal water supply or other external sources (cubic meters) | 36,329.46 | 39,275.90 | 46,423.30 |
| Groundwater consumption (cubic meters) | 14,143.00 | 25,324.00 | 30,936.00 |
| Water reuse from treatment processes (cubic meters) | 67,208.00 | 65,444.00 | 55,585.00 |
