Environmental Stewardship

Environmental Quality Control

Risk	Opportunity
The development of industrial estates can give rise to environmental pollution, which may directly affect the quality of the surrounding environment and, in turn, impact the health and well-being of stakeholders working within the estate as well as nearby residential communities. Without proper oversight and effective management, such development can lead to a loss of trust among all stakeholder groups, opposition from local communities toward future business expansion, and, in severe cases, the revocation of business operating licenses.	A strong emphasis on developing robust environmental management and control systems within large-scale industrial estates presents the Company with valuable opportunities to create new products and services. By leveraging cutting-edge, high-efficiency innovations and technologies, the Company ensures that environmental conditions are closely monitored and responsibly managed. This proactive approach enhances stakeholder confidence in the Company's operations and enables the Company to better meet the expectations of clients who prioritize environmental responsibility. Furthermore, it allows the Company to contribute meaningfully to society and the nation by sharing its environmental management expertise in the regions where its projects are based.

Risk

Opportunity

The development of industrial estates can give rise to environmental pollution, which may directly affect the quality of the surrounding environment and, in turn, impact the health and well-being of stakeholders working within the estate as well as nearby residential communities. Without proper oversight and effective management, such development can lead to a loss of trust among all stakeholder groups, opposition from local communities toward future business expansion, and, in severe cases, the revocation of business operating licenses.

A strong emphasis on developing robust environmental management and control systems within large-scale industrial estates presents the Company with valuable opportunities to create new products and services. By leveraging cutting-edge, high-efficiency innovations and technologies, the Company ensures that environmental conditions are closely monitored and responsibly managed. This proactive approach enhances stakeholder confidence in the Company's operations and enables the Company to better meet the expectations of clients who prioritize environmental responsibility. Furthermore, it allows the Company to contribute meaningfully to society and the nation by sharing its environmental management expertise in the regions where its projects are based.

Management Approach

The Company acknowledges its responsibility for the social and environmental impacts resulting from activities within its supply chain, whether carried out by the Company itself or by its business relationships, such as suppliers, contractors, tenants, and factory operators. Therefore, the Company has outlined its commitment in the "Environmental Management Policy", "Waste Management Policy", and "Sustainable Water Management Policy" emphasizing the control of environmental quality to meet or exceed the legal standards. This commitment extends to the operations of suppliers, contractors, tenants, and factory operators, whom the Company oversees and encourages to comply with relevant laws, regulations, and policies and align with the Company's environmental policies and standards. The aim is to prevent and mitigate any potential environmental impacts and human rights violations that may arise throughout the supply chain, ensuring the well-being of all stakeholders involved.

The Company has conducted a comprehensive assessment of risks and impacts arising from its operations across the entire supply chain. It has overseen and monitored the operations of suppliers, contractors, tenants and factory operators in both AMATA industrial estates that may cause negative environmental impacts. According to the assessment, key environmental pollution that had a significant impact on stakeholders includes air pollution, industrial and solid waste, water pollution, noise and odor disturbances originating from factories. In response, the Company is committed to managing and mitigating these environmental impacts to meet or exceed legal requirements. This is achieved through the adoption of appropriate, high-efficiency technologies and strict compliance with applicable laws governing industrial estate operations, the environmental impact assessment (EIA) measures, and both national and international environmental standards—such as ISO 14001, for which the Company has been certified, covering 100% of its operational area as defined in the scope of this sustainability report. Furthermore, the Company actively promotes awareness among suppliers, contractors, tenants, and factory operators regarding the importance of managing environmental impacts from their business activities, as well as encourages their cooperation in minimizing pollution across all aspects. A key target set for 2025 is to have zero incidents of legal or regulatory violations related to environmental matters, with no significant fines incurred, and to ensure that all environmental quality indicators remained within the legal standards.

The Company collaborates with the Industrial Estate Authority of Thailand (IEAT) to supervise and monitor both AMATA's industrial estates, ensuring compliance with laws and regulations while minimizing negative impacts on society and the environment. It adheres to the measures outlined in the Environmental Impact Assessment (EIA) report to prevent, correct, and monitor environmental impacts within the industrial estates. These efforts aim to build community trust in environmental management and promote guidelines based on environmental governance principles. The results of these endeavors are as follows:

See more details on our Environmental Management Policy

Environmental Management Policy

Implementation according to measures specified in the EIA report

1. Environmental Monitoring and Control Center: EMCC

The Company acknowledges the environmental impacts caused by factories located in AMATA Industrial Estates, which are beyond the Company's direct control. Therefore, the Company has established the Environmental Monitoring and Control Center (EMCC) since 2013 to continuously monitor environmental quality in both AMATA industrial estates, aiming to ensure that environmental quality indicators such as air pollution and wastewater meet legal standards. The EMCC integrates environmental quality data from both industrial estates, consisting of five systems, and displays real-time environmental quality data online 24/7, as shown in the diagram below.

1) The central industrial estate database system

serves as an information center for collecting environmental data at both the industrial estate and factory levels. This includes information such as water consumption, wastewater volume, wastewater quality, waste generation, and air quality.

2) The effluent quality monitoring and controlling system for effluent discharged from the central wastewater treatment facility

is designed to transmit real-time data from BOD and COD online analyzers directly to the Environmental Monitoring and Control Center (EMCC). If the effluent quality is found to exceed the standards prescribed by the Ministry of Natural Resources and Environment’s Notification on Effluent Quality Standards for Industrial Factories, Industrial Estates, and Industrial Zones dated 29 March 2016, or the Ministry of Industry’s Notification on Effluent Discharge Control Standards for Factories B.E. 2560 (2017) dated 30 May 2017, the EMCC will immediately issue an alert to the Central Wastewater Control Center. The Center will then proceed to analyze the root cause of the issue and take prompt corrective action.

3) Air Quality Monitoring Station (AQMS)

is a surveillance system that monitors air quality in the surrounding communities of the AMATA City Chonburi Industrial Estate. The Company assessed air pollutant emission sources arising from operations under its direct control, covering office building operations and basic utility systems. The assessment found that there are no significant sources of nitrogen oxides (NOx), sulfur oxides (SOx), or other material air pollutants generated from such operations. Nevertheless, the Company continues to manage air quality issues through regulatory oversight of operators within the industrial estates, ensuring compliance with applicable environmental requirements, as well as through continuous ambient air quality monitoring in surrounding areas, in accordance with mitigation measures stipulated in the approved Environmental Impact Assessment (EIA) reports.

The Company has established an ambient air quality monitoring system through Continuous Air Quality Monitoring Stations (AQMS) located in communities surrounding AMATA City Chonburi Industrial Estate, consisting of four (4) stations at U Ta Pao Temple, Mab Sam Kleow Temple, Phanthong Sappachanupatham School, and Om Kaew Temple; and in areas surrounding AMATA City Rayong Industrial Estate, consisting of two (2) stations at Mab Yang Phon Subdistrict Health Promoting Hospital and Wat Phana Nikhom Temple. The AQMS measures various air pollutants, including total suspended particulates (TSP), particulate matter up to 10 microns (PM10), particulate matter up to 2.5 microns (PM 2.5), sulfur dioxide (SO₂), and nitrogen dioxide (NO₂), as well as wind speed and direction. These measurements help analyze the trend of pollution spreading and identify the sources of air pollution. Moreover, the AQMS continuously monitors rainfall and temperature to accurately predict precipitation and assess the local climate for environmental management planning.

4) The monitoring and control system for air quality emitted from factory smokestacks

is designed to track and manage environmental quality, even though the Company itself does not engage in activities that directly release air pollutants and does not have authority over emissions from individual factories. Nevertheless, the Company remains committed to environmental oversight by linking air quality measurement data from industrial stack emissions and the Continuous Emission Monitoring System (CEMS) with the industrial estate’s comprehensive air quality measurement database (Emission Inventory). This integrated approach aims to manage air quality within the industrial estate area (Emission Loading). If a factory's air emission quality exceeds the standards, the Environmental Monitoring and Control Center (EMCC) will promptly notify the factory to conduct inspections, report the causes, and implement immediate corrective measures and improvements.

5) The security and environmental surveillance provided by the Closed Circuit Television (CCTV) system

is a system utilized for processing and planning safety and traffic management, as well as for monitoring the environmental conditions of industrial factories within the AMATA Industrial Estates.

Continuous monitoring of environmental quality at the Environmental Monitoring and Control Center (EMCC) instills confidence in stakeholders that the Company prioritizes environmental impact management and diligently monitors environmental quality. This ensures that environmental issues within the AMATA industrial estates are promptly addressed and resolved. All environmental quality data in the AMATA industrial estates are linked to EMCC of the Industrial Estate Authority of Thailand.

In 2025, neither the Company nor the factories in both AMATA industrial estates violated any environmental laws or regulations. Environmental quality indicators, such as air quality and wastewater quality following treatment from the central wastewater treatment system, all met legal standards.

2. Disclosure of the actions and performance according to Preventive & Corrective Measures for Environmental Impacts (EIA Monitoring Report)

The Company discloses its actions and performance according to the environmental impact preventive and corrective measures in the Environmental Impact Assessment (EIA) Monitoring Report, which is submitted every six months to the Office of National Resources and Environmental Policy Planning (ONEP), the Industrial Estate Authority of Thailand (IEAT), the Office of Environmental and Pollution Control 13 (Chonburi), and the Provincial Office of Natural Resources and Environment. The report discloses the performance after the implementation of preventive and corrective measures stated in the EIA Monitoring Report in both AMATA City Chonburi and AMATA City Rayong Industrial Estates. The Company also presents the EIA Monitoring reports every six months to the Environmental Quality Audit Committee of both industrial estates, which consists of the Industrial Estate Authority of Thailand (IEAT), AMATA environmental officers, local government representatives, local community representatives, and representatives from the factories in AMATA Industrial Estate.

In 2025, the Company presented the results of the EIA Monitoring Report to the Environmental Quality Audit Committee of both industrial estates in four meetings with the objective of allowing the committee.

1) to provide comments and recommendations on the environmental management of the industrial estates, the environmental impacts associated with the estates, as well as environmental issues and related complaints;

2) to acknowledge the results of environmental quality monitoring both within and surrounding the industrial estates;

3) to promote accurate environmental understanding and reinforce the confidence of surrounding communities in the Company’s environmental management of the industrial estates.

The Environmental Quality Audit Committee of both industrial estates did not have any suggestions concerning the environmental impact caused by the Company’s operations. However, there were impacts caused by the activities of tenant factories and the Company’s contractors, for which the committees requested the Company’s support in addressing. Additionally, there were some suggestions for the Company to increase the efficiency of the operations management of both industrial estates in the coming year, as follows:

Suggestions from the
Environmental Quality Audit Committees

AMATA City Chonburi

Request better management of the green areas serving as buffer zones adjacent to various communities by measuring, counting, and increasing the number of trees. This aims to mitigate environmental impacts that may affect the communities, such as issues related to unpleasant odors, airborne dust, and excessive noise caused from factories.
Enhance knowledge and understanding of wastewater and waste management among surrounding communities to mitigate wastewater and waste issues originating from communities that may affect surface water quality and the area’s waste management system. This includes expanding the “Nong Mai Daeng Model Community Project” on sustainable wastewater and waste management to other communities surrounding the AMATA City Chonburi Industrial Estate, such as Khlong Tamru community, Don Hua Lo community, Na Pa community, and other communities in the future.
Enhance efforts to address traffic issues, particularly at key interface areas between the industrial estate and surrounding communities in order to improve traffic flow efficiency. This includes proposing an increase in the number of security personnel to facilitate traffic movement during peak hours in coordination with police officers, especially at connection points between the industrial estate and community areas, schools, and other public spaces. In addition, the Company should increase the use of applications for monitoring and tracking incidents within the industrial estate, integrated with CCTV systems, to enhance traffic management effectiveness and accident response. These measures would support the development of the industrial estate toward Smart Safety and promote the expansion of AMATA’s Safety Road Project to other AMATA Group developments, as well as to other industrial estates under the supervision of the Industrial Estate Authority of Thailand.
Expand the Farm to Factory Project to cover more communities surrounding the industrial estate, enabling community products to better access consumers within factories. This includes promoting and communicating the project to increase participation by factories within the industrial estate, with the aim of expanding the consumer base for community products through various Farm to Factory channels, such as factory canteens and factory markets. The initiative also supports local economic development in collaboration with operators within the estate and the Industrial Estate CSR Club under the “AMATA Chuan Shop” project, contributing to the long‑term strengthening of the surrounding communities’ economic resilience.
Survey and compile data on the proportion of the workforce employed within the project, distinguishing between workers from Chonburi Province and those from outside the province. In addition, encourage customers and contractors undertaking projects within the industrial estate to promote local employment, with the aim of addressing labor‑related issues and creating employment opportunities for surrounding communities.
Enhance road safety measures to improve their effectiveness and introduce additional measures to promote, reduce, and prevent road traffic accidents within the industrial estate, as accident statistics in the industrial estate area have increased compared to 2024.
Enhance communication with surrounding communities, particularly in areas where additional construction activities or new project developments may have impacts on neighboring communities. This includes improving the effectiveness of public communication systems and expanding communication and disclosure channels to provide communities with greater access to information and opportunities to participate in related activities, thereby strengthening transparency, trust, and positive relationships between the Company and surrounding communities.

AMATA City Rayong

Promote awareness and knowledge of safety regulations and traffic discipline within the industrial estate, particularly among foreign operators, in order to reduce the likelihood of accidents that may affect surrounding communities.
Oversee traffic management and address traffic congestion, particularly during peak hours, by efficiently managing traffic flow and improving traffic control. This includes regulating vehicle speeds and coordinating with police authorities to establish a collaborative network to promote stricter traffic discipline.
Propose increasing AMATA’s support for motorcycle helmets for parents, in addition to the helmets already provided to students, to enhance road safety. This measure aims to support parents who do not yet have helmets and have limited financial capacity, enabling safer motorcycle use within surrounding community areas.
Support the installation of traffic signs in front of schools and in areas surrounding the industrial estate to help reduce vehicle speeds and facilitate safe road crossing for students during peak hours. This also includes encouraging participation in school activities and supporting educational materials for students in schools located around the industrial estate areas, in order to promote educational quality and enhance community safety.
Support and participate in community traditional and cultural activities to promote the preservation of local traditions and strengthen positive relationships with surrounding communities.
Support the provision of waste segregation equipment or the organization of awareness‑raising activities on waste segregation for surrounding communities, in order to promote proper waste management practices and foster environmental awareness within community areas.
Monitor and manage air pollutant emissions from factory stacks, as well as conduct odor surveillance that may potentially affect surrounding communities, in order to prevent adverse impacts on public health and the quality of life of people in nearby areas.

Implementation according to the government policy

1. Eco-Industrial Town Development

The Company has collaborated with the Industrial Estate Authority of Thailand (IEAT) in developing AMATA industrial estates as Eco-industrial Towns according to government policy. The guidelines for a development plan are in line with the development framework laid out by the IEAT, which consists of 5 dimensions and 22 aspects. The five dimensions, which are physical, economic, environmental, social, and management, are related to the Company’s stakeholders: local communities, customers, employees, factory employees, and local government authorities. There are three levels of eco-industrial town development, namely Eco-Champion, Eco-Excellence, and Eco-World Class. In the near future, the Industrial Estate Authority of Thailand (IEAT) plans to develop a draft framework for indicators transitioning from Eco-Industrial Estate (Eco I.E.) towards Sustainable Development Goals-oriented Industrial Estates (SDGs I.E.).

To develop Eco-industrial Town at AMATA City Chonburi Industrial Estate and AMATA City Rayong Industrial Estate, the Company has implemented numerous initiatives and projects such as setting up traffic management and industrial waste management committees, creating jobs for local communities, conducting comprehensive environmental management systems, environmental quality monitoring, managing water pollution, waste, noise pollution, dust, smoke, pollution measurement, and publicly disclosing its performance. Further efforts include improving the well-being of people in communities and factories, as well as developing an advanced data management system for internal operations.

In 2025, AMATA Corporation Public Company Limited received the Eco-Excellence: E2 certification for the eighth consecutive year for AMATA City Chonburi Industrial Estate and the seventh consecutive year for AMATA City Rayong Industrial Estate. On 17 October 2025, Mr. Numchai Nilthong, Environmental Engineering Department Manager of AMATA Corporation Public Company Limited, received the Eco-Excellence Industrial Estate award at the Eco Innovation Forum 2025, under the theme “Transforming through Sustainable Industries: Advancing Thailand through New and Sustainable Industries.” The event was organized by the Industrial Estate Authority of Thailand (IEAT) in collaboration with the Water and Environment Institute for Sustainability (WEIS) and the Federation of Thai Industries (FTI). The Eco-Excellence certification recognizes industrial estates that contribute to the development and enhancement of community quality of life and environmental quality, emphasizing commitment to sustainable industrial development based on the balance of the economy, society, and the environment.

2. Environmental Governance Assessment

The Industrial Estate Authority of Thailand (IEAT) has conducted the Environmental Governance – Green Star Award Project through the Factory Assessment Regulatory Committee, consisting of the Industrial Estate Authority of Thailand, local governmental authorities, communities within a radius of 5 kilometers from the industrial estates, and the Company, as an industrial estate developer, to assess and regulate factories in both AMATA industrial estates according to the environmental governance assessment, which required that the environmental management information and performance of the factories participating in the project be disclosed and assessed. Additionally, advice on improving the factory management system was provided free of charge by the representatives from the Industrial Estate Authority of Thailand and the experts. Representatives from local governmental authorities and community leaders also participated in the factory assessment and site visits in order to foster transparency and an accurate understanding in the local communities. The Environmental Governance - Green Star Award Project consists of 5 dimensions and 13 topics as follows:

Physical Dimension

1. Green area management
2. Drainage system
Economic Dimension

3. Promotion of local community economy.
Environmental Dimension

4. Water management, energy consumption and alternative energy utilization
5. Management of industrial waste, sewage, and solid waste
6. Air quality management
7. Chemical Emission and Process Safety Management (PSM)
8. Employee health and safety
9. Accident and emergency management
10. Complaint management
Social Dimension

11. Quality of life and society of employees in the factory
12. Quality of life and society of surrounding communities
Management Dimension

13. Factory management system

In 2025, 14 factories from AMATA City Chonburi Industrial Estate and 9 factories from AMATA City Rayong Industrial Estate participated in the assessment. A representative from the Company was a member of the factory assessment regulatory committee. It was found that all factories that participated in the assessment for the Environmental Governance (Green Star Award) Project met the assessment criteria with a score of more than 80%, which is classified as a good to excellent level.

Social and Environmental Complaints Management

The Company provides various complaint channels for stakeholders who are affected by environmental pollution and can easily access and report the information directly, in accordance with ISO 14001:2015, to properly classify and handle each type of complaint.

Complaint Channel

Online channel:

Line@: @AMATACity, @AMATACity Rayong
Facebook Page: AMATACorp
Tel: 038-213-191

Offline channel:

Community committee meetings
Meetings of customer club and factory operators in industrial estates

Record and Assessment

Complaints from all channels will be recorded in Complaint Management System
The system will automatically forward the complaints to relevant departments for management and resolution

Management and Solution

Relevant departments investigate the complaints and estimate the correction period
Complete the correction
Provide appropriate remedies for affected people
Set up risk mitigation and preventive measures and regularly monitor them

Result Reporting

Report complaint management results to stakeholders
Report a summary of complaint resolutions to management on a regular basis
Disclose complaint management information in the annual sustainability report

The Company’s social and environmental complaint management requires collaboration and participation from multiple stakeholders, as the Company does not hold direct legal authority to manage tenants or factory operators causing social and environmental impacts. Actions must therefore be coordinated through governmental agencies such as the Industrial Estate Authority of Thailand (IEAT), the Department of Industrial Works, the Ministry of Industry. These actions involve reviewing relevant rules, regulations, or related laws as the solution guidelines, including cause analysis in order to find the preventive measures at the source, of which the management procedure can be divided into two levels:

1) Consultation:

If a complaint is found arising from the working process in a customer’s plant or in the common area of the industrial estate, the Company will consider dispatching environmental staff or related departments to investigate the site in order to advise the customer on improving the working process and provide primary problem-solving guidelines, including consulting specialists or experts from government agencies for the implementation of improvements.

2) Operation through the Industrial Estate Authority of Thailand:

In case the complaint has not yet been resolved and there is a repetitive complaint, the Company will escalate the complaint to the Industrial Estate Authority of Thailand to inspect the process, including coordinating the collaboration with the competent supervision authority to further formulate the management approach, cause analysis, and prevention measures.

In 2025, the Company received a total of 24 environmental complaints through various channels, comprising 17 complaints between factory and factory, and 7 complaints between community and factory. In response to these complaints, the Company, in collaboration with the Industrial Estate Authority of Thailand, conducted a site inspection alongside its environmental officers and community representatives to implement corrective measures and prevent recurrence. All 24 complaints (100%) have been fully resolved.

Environmental Complaints in
AMATA City Chonburi, AMATA City Rayong, and AMATA Smart City Chonburi

Complaint Type	2022			2023			2024			2025
Complaint Type	AMATA City Chonburi	AMATA City Rayong	New Projects Under Development	AMATA City Chonburi	AMATA City Rayong	New Projects Under Development	AMATA City Chonburi	AMATA City Rayong	New Projects Under Development	AMATA City Chonburi	AMATA City Rayong	New Projects Under Development
Directly related to company operations	0	0	-	0	0	1	0	0	2	0	0	0
Factory-to-factory complaints	4	8	-	1	7	-	1	5	-	6	11	0
Community-to-factory complaints	3	4	-	2	8	-	2	5	-	0	7	0
Total complaints received	19			19			15			24
Total Complaints resolved (%)	100%	100%	-	100%	100%	-	100%	100%	100%	100%	100%	100%

The Company received no significant environmental or social complaints from stakeholders directly related to its own operations, and no significant complaints regarding non-compliance with environmental laws and regulations resulting in fines or penalties. Environmental complaints that arose between factories and communities were primarily related to odor concerns and wastewater management. The Company actively engaged in mediation and corrective actions to mitigate the impacts caused by factories in the industrial estate and provided support to improve their operational practices to minimize odor issues. Additionally, wastewater treatment systems were inspected to reassure surrounding communities of compliance with environmental standards.

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Environmental Quality Control