Environmental Stewardship

Waste Management in Industrial Estates

Risk	Opportunity
AMATA Industrial Estates in Thailand host over 1,386 industrial factories and tenants, employing over 310,000 workers, and generating massive amounts of waste and industrial waste annually. If the factories fail to comply with laws on solid waste and industrial waste management, they could cause negative impacts on the health of waste workers, the environment, and nearby communities in both the short and long term. Additionally, it could potentially affect the Company's ability to obtain future expansion licenses.	Efficient waste management and creating additional value from waste through circular economy principles offer a business opportunity for the Company to develop new products and services that lower its costs, increase revenue, build stakeholder confidence, be recognized by the local community, and also support the reduction of greenhouse gas emissions from landfills.

Risk

Opportunity

AMATA Industrial Estates in Thailand host over 1,386 industrial factories and tenants, employing over 310,000 workers, and generating massive amounts of waste and industrial waste annually. If the factories fail to comply with laws on solid waste and industrial waste management, they could cause negative impacts on the health of waste workers, the environment, and nearby communities in both the short and long term. Additionally, it could potentially affect the Company's ability to obtain future expansion licenses.

Efficient waste management and creating additional value from waste through circular economy principles offer a business opportunity for the Company to develop new products and services that lower its costs, increase revenue, build stakeholder confidence, be recognized by the local community, and also support the reduction of greenhouse gas emissions from landfills.

Management Approach

The Company places strong emphasis on the management of waste and residuals across the entire business value chain, from waste generation to reuse, recovery, and proper disposal. Accordingly, the Company has established a “Waste Management Policy” with the objective of reducing or avoiding potential environmental and social impacts arising from activities within its industrial estates, while enhancing resource efficiency and the overall effectiveness of waste management operations. The Company manages waste in strict compliance with applicable laws, environmental standards, and relevant technical principles, with a focus on waste reduction at source, minimizing unnecessary landfill disposal and incineration, and implementing systematic waste segregation and tracking processes. The Company actively promotes reuse, recycling, and value enhancement of waste in line with circular economy principles, and supports the use of modern technology and innovation to improve waste management efficiency. The Company’s ultimate goal is to achieve Zero Waste to Landfill, whereby no municipal solid waste is sent for disposal by landfill.

The Board of Directors is responsible for defining policies and overseeing waste management across the industrial estates. The Company assigns its subsidiary, AMATA Facility Services Company Limited as the principal entity responsible for the operational management of waste and residuals throughout all AMATA industrial estates, in accordance with Company policy. Clear targets, action plans, and performance indicators are established, with performance continuously monitored and reported. The Company also coordinates closely with operators, suppliers, contractors, and relevant authorities to ensure that waste segregation, collection, reuse, recovery, and disposal are conducted in an efficient, transparent, and compliant manner. In addition, the Company promotes stakeholder participation and capacity building among operators, suppliers, contractors, and local communities to collectively advance waste and residuals management in alignment with the Company’s sustainable development approach.

The Company is responsible for managing municipal solid waste from common areas and factory operators, as well as non‑hazardous industrial waste within the scope of its services. For hazardous waste, factory operators bear legal responsibility for the management of waste generated from their operations in accordance with the Industrial Estate Authority of Thailand Act B.E. 2522 (1979), the Factory Act B.E. 2535 (1992), and the Public Health Act B.E. 2535 (1992), including subsequent amendments. Nevertheless, in 2025, certain operators entrusted the Company to coordinate and manage hazardous waste on their behalf. In such cases, the Company selects licensed external contractors to provide waste collection, transportation, treatment, or disposal services, and monitors their performance to ensure full compliance with applicable requirements. The Company also collects and tracks waste management data based on documentation and information provided by service providers, which is used to support operational control and performance evaluation of waste management practices.

See more details on our Waste Management Policy

Waste Management Policy

The Company’s solid waste management service is now used by 630 factories in AMATA City Chonburi Industrial Estate, and 358 factories in AMATA City Rayong Industrial Estate, representing 73.09% and 68.32% of total tenants and factory operators in each industrial estate respectively which increase from 2024.

Waste Generated from Business Operations

In 2025, the Company expanded its service scope to include industrial waste management services for customers within its industrial estates. As a result, the scope of waste data collection was expanded accordingly. In the reporting year, total waste generated from the Company’s operations at AMATA City Chonburi Industrial Estate, AMATA City Rayong Industrial Estate, and the Bangkok office increased from 2024 to 38,330.95 tons. This total comprised 25,669.53 tons from AMATA City Chonburi Industrial Estate, 12,563.04 tons from AMATA City Rayong Industrial Estate, and 4.22 tons from the Bangkok office. Of the total waste generated, 38,236.78 tons were non-hazardous waste, including solid waste from the Company’s operations, waste from the Company’s utility systems, and solid waste and industrial waste arising from customer services within the industrial estates. Hazardous waste accounted for 94.16 tons, arising from customer service activities within the industrial estates.

The Company applies a range of waste management methods to manage waste arising from its business activities in a manner appropriate to each type of waste and to ensure efficient waste management. This approach is guided by the Company’s policy of maximizing resource efficiency and minimizing environmental impacts. In 2025, all waste generated was managed through the following methods: 62.6% was treated through incineration with energy recovery, 16.1% was reused, 8.7% was recycled, 7.3% was disposed of through landfill, 4.7% was managed through other recovery methods such as composting or organic waste decomposition, and 0.6% was treated through incineration without energy recovery.

Solid Waste Management Approach toward Zero Waste to Landfill

The Company recognizes the impact of landfill waste disposal, which generates greenhouse gases that are a major cause of climate change. As a result, the Company has set a bold target of achieving Zero Waste to Landfill each year. This ambition is guided by a comprehensive approach that focuses on reducing resource consumption, minimizing waste generation from the outset, enhancing waste segregation efficiency, and embracing the principles of a circular economy to ensure the maximum reuse of resources.

In addition, the Company places great emphasis on engaging its stakeholders in waste management efforts. By promoting responsible resource use and maximizing resource efficiency in line with circular economy principles, the Company encourages both internal and external stakeholders to collaborate in the proper disposal of waste and to increase the reuse or recycling of waste within their respective operations.

Solid Waste Management in AMATA Industrial Estates

The amount of solid waste generated within the two industrial estates amounted to 27,589.10 tons. This comprised 18,369.51 tons of waste generated by factory operators using the Company’s waste management services at AMATA City Chonburi Industrial Estate and 9,219.59 tons at AMATA City Rayong Industrial Estate. In addition, solid waste generated from the Company’s operations in common areas, including tree branches and wood waste from pruning activities, totaled 1,706.40 tons, consisting of 954.45 tons from AMATA City Chonburi Industrial Estate and 751.95 tons from AMATA City Rayong Industrial Estate.

All solid waste generated from the Company’s operations in common areas is managed by licensed external contractors with expertise in waste management. The Company is responsible for selecting and overseeing these contractors to ensure compliance with applicable environmental law and regulations, and regularly conducts site assessments of contractor facilities to verify that waste is managed in an environmentally sound manner and in a way that does not pose risks to the health and safety of the contractors’ workers. In addition, the Company uses a waste transport manifest system to track waste movements through to the final destination and requires clear reporting on waste treatment and disposal methods. This helps ensure that all waste types are managed properly in accordance with internationally recognized waste management principles and that potential impacts on surrounding communities are prevented.

AMATA City Chonburi Industrial Estate

AMATA City Rayong Industrial Estate

Solid waste generated by factories using the Company’s waste management services

Solid waste generated from the Company’s activities in common areas

Total

18,369.51 tons

954.45 tons

19,323.96 tons

9,219.59 tons

751.95 tons

9,971.54 tons

Waste generated by factories using the Company’s waste management services is segregated by contractors at the waste separation plant within AMATA Industrial Estates. The waste is sorted in accordance with the 3Rs principles (Reduce, Reuse, Recycle) and then managed through various recovery and disposal methods by contractors who are properly licensed and qualified to manage municipal solid waste and industrial waste in compliance with applicable laws. In addition, the Company implements waste management measures at the source by providing guidance to factories using the Company’s waste management services on proper waste separation and classification before delivery to the waste separation plant. This helps ensure that waste entering the sorting process is of suitable quality for the production of Refuse-derived Fuel (RDF) or for recycling, with the aim of minimizing the amount of waste that cannot be recovered and must be sent to landfill, with a long-term goal of achieving Zero Waste to Landfill.

Since 2011, the Company has continuously worked to reduce the amount of waste generated at AMATA City Chonburi Industrial Estate that is sent to landfill, in line with its policies and objectives. To achieve this, the Company has strengthened its waste management practices by shifting away from landfill disposal toward greater waste segregation, the recovery of recyclable materials, and the production of alternative fuel in the form of Refuse-derived Fuel (RDF) for use in cement plants.

In 2025, solid waste at AMATA City Chonburi Industrial Estate was managed through the Company’s waste separation facility. Of the total solid waste handled at the facility, 12.39% was recovered as recyclable materials and 87.61% was processed into Refuse-derived Fuel (RDF). As a result, none of the solid waste managed at the Company’s waste separation facility was sent to landfill (0%). Meanwhile, at AMATA City Rayong Industrial Estate, solid waste was collected, transported, and managed by the Company’s legally licensed contractors. Under this management approach, 71.03% of solid waste was converted into Refuse‑Derived Fuel (RDF) and Solid Recovered Fuel (SRF) for use in electricity generation, while the remaining 28.97%, which could not be processed into fuel, was disposed of through sanitary landfill in accordance with applicable standards.

Through the implementation of the Zero Waste to Landfill approach, the Company successfully reduced waste management costs by 2.4 million Baht in 2025. Furthermore, 89% of factory operators utilizing the Company's waste management services expressed satisfaction and confidence in its practices, ensuring that no waste was illegally disposed of. Additionally, neighboring communities of AMATA City Chonburi Industrial Estate have shown increased trust in the estate’s waste management system, reinforcing its commitment to responsible and sustainable waste disposal. Building on the success of implementing the Zero Waste to Landfill approach, the Company is currently conducting a feasibility study to expand the initiative to AMATA City Rayong Industrial Estate.

Industrial Waste Management in AMATA Industrial Estates

In 2025, the Company expanded the scope of its data collection to include industrial waste management services provided to customers within AMATA City Chonburi Industrial Estate. As a result, a total of 3,137.32 tons of industrial waste were generated, comprising 94.16 tons of hazardous waste and 3,043.17 tons of non‑hazardous waste. All hazardous waste was treated through incineration. The collection, transportation, and treatment of such waste were carried out by the Company’s legally licensed contractors in compliance with applicable regulatory requirements, in order to ensure proper and environmentally sound disposal. Of the total non-hazardous waste generated, 1,792.49 tons were processed into Refuse-Derived Fuel (RDF), 1,130.74 tons were sent for recycling, and 119.94 tons were treated through incineration without energy recovery. All waste management activities were undertaken by contractors duly licensed under applicable laws.

Management of Solid Waste from the Company’s Utility Systems

The majority of waste generated from the operations within the industrial area’s core processes consists of sludge, which results from the water production system and the biological wastewater treatment system at both AMATA Industrial Estates. This sludge is classified as non-hazardous waste. In 2025, the Company generated a total of 5,893.90 tons of sludge, with 3,302.40 tons from the AMATA City Chonburi Industrial Estate and 2,591.5 tons from the AMATA City Rayong Industrial Estate. The Company conducted an analysis of the sludge quality using 12 different tests, using the Total Threshold Limit Concentration (TTLC) and Soluble Threshold Limit Concentrations (STLC) methods. The results indicated that the toxicity levels of the sludge were below the standards set by the Ministry of Industry's Notification on the Management of Waste and Used Materials, B.E. 2566. As a result, the Company has fully reused 100% of the sludge within the industrial estates, utilizing it for landfilling and as soil for tree planting.

Office Waste Management

The Company encourages all employees to participate in reducing waste and garbage in the office by creating communication campaigns to promote understanding and awareness of proper waste management. Additionally, it has implemented the "All Save, All Win" project through various activities as follows:

1. Employees are provided with waste management guidelines and best practices via the Line application across all office location

Bangkok, Chonburi, and Rayong—ensuring accessibility and efficiency in communication. Additionally, quarterly employee meetings incorporate waste management awareness discussions to reinforce proper segregation, disposal, and recycling measures.

2. Promoting the reduction of paper usage in offices to minimize waste generation in all Company offices and promoting wastepaper recycling

the Company cooperated with SCG Packaging Public Company Limited to develop the "The "Old for New" Paper Recycling Initiative aims to reduce resource consumption and waste generation by collecting used paper from Company offices for recycling and repurposing. This initiative contributes to natural resource conservation, waste minimization, and environmental impact reduction. In 2025, a total of 2,696 kilograms of used paper was recycled through this program.

3. Food waste reduction from the point of generation

Food waste reduction from the point of generation. Employees participate in pre-selecting lunch menus to reduce food waste at the source and minimize food leftovers. Additionally, food and beverages are provided in environmentally friendly packaging made from 100% recycled PET (rPET) plastic pellets at break rooms, in accordance with the Chief Executive Officer’s policy. In 2025, the Company (Bangkok office) generated 2.61 tons of food waste, based on weight measurements.

4. Waste segregation activities in the office by employees and proper waste disposal to reduce the amount of waste sent to landfills

Waste segregation activities in the office by employees and proper waste disposal to reduce the amount of waste sent to landfills. In 2025, the Company (Bangkok Office) segregated waste and sent a total of 2.12 tons of recyclable plastic and non-recyclable waste for proper disposal, including 1.86 tons of recyclable waste and 0.27 tons of waste for refuse-derived fuel (RDF) production. The waste was then transferred to agencies responsible for waste disposal and recycling, as follows:

Plastic waste, paper boxes, and orphan waste were sent to Recycle Day, N15 Technology, Waste Buy Delivery, and Friends in Need (of "PA") Volunteers Foundation, Thai Red Cross.
Used batteries and electronic devices were sent to CPALL and the Mirror Foundation.
The Company participated in a recyclable waste donation activity with the Khlong Tamru Municipality, Mueang District, Chonburi Province. The proceeds from recycling waste were used to support bedridden patients, persons with disabilities, elderly individuals in home confinement, and underprivileged individuals within the municipal area.

5. The Company participated in the "Ting To Trash" project

The Company participated in the "Ting To Trash" project organized by the Securities and Exchange Commission and collaborated with the Thai Listed Companies Association. The objective is to encourage registered companies to start environmental management initiatives, focusing on waste management from the source to the destination.

6. Employee Engagement Activities in Waste Management

Employee Engagement Activities in Waste Management with the encouragement to participate in waste management by donating waste that has been separated at home or in the office to ensure proper disposal.

7. Procurement of Employee Uniforms and AMATA Drinking Bottles under the “Rak AMATA” Brand, which are environmentally friendly:

Procurement of Employee Uniforms and AMATA Drinking Bottles under the “Rak AMATA” Brand, which are environmentally friendly:

Employee uniforms in 2025 were made from 100% recycled rPET plastic, totaling 1,385 pieces.
AMATA drinking water under the Rak AMATA brand is produced from 100% rPET recycled plastic without labels, totaling 88,320 bottles. This initiative helps reduce greenhouse gas emissions by 4.59 tons of carbon dioxide equivalent. Based on calculations, producing one bottle from recycled plastic can reduce greenhouse gas emissions by 0.052 kg of carbon dioxide equivalent (Source: Envicco Company Limited). This reduction is equivalent to the carbon sequestration of 484 trees in one year, referencing an average carbon absorption rate 9.5 kg of carbon dioxide equivalent per tree per year (Source: Thailand Greenhouse Gas Management Organization (Public Organization), December 2016).

8. The Company organized a training session on Sustainable Waste Management for Industrial and Construction Sectors,

On 24 December 2025, the Company organized a training session on Waste Management for Value Creation under the Circular Economy toward Net Zero, led by experts from the Faculty of Public Health, Burapha University. The objective was to provide knowledge and enhance understanding of waste management practices related to construction and industrial estate infrastructure. The session covered topics such as resource management using circular economy principles and the development of environmentally friendly products and industrial processes. A total of 55 employees participated in the training, accounting for 18.46% of the total workforce.

Promoting Customer Participation in Waste Management

Smart Waste Tracking System (KoomKah Smart Manifest)

The Company encourages customers in industrial estates to implement proper waste management practices by integrating technology into waste data management. This enhances efficiency in waste management within the industrial estate through the Smart Waste Tracking System (KoomKah Smart Manifest). Customers utilizing the service can monitor waste collection volumes in real-time, ensuring transparency, improving waste collection and transportation services, and reinforcing confidence in the Company’s waste disposal processes. In 2025, 100% of customers who are using the Company’s solid waste management services in AMATA City Chonburi Industrial Estate have adopted the KoomKah Smart Manifest system. The Company plans to expand its implementation to AMATA City Rayong Industrial Estate in the near future.

Industrial Waste and Solid Waste Management Awards

The Company encourages factories to participate in awards and provides them with accurate knowledge and understanding of solid waste and industrial waste management standards required by law in AMATA City Chonburi Industrial Estate and AMATA City Rayong. Therefore, the Company has continued to organize the “AMATA Best Waste Management Awards" project, an annual event held from 2014 to the present, to promote and encourage the factories to increase the efficiency of non-hazardous industrial waste management, solid waste management, and sewage. By applying the 3Rs (Reduce, Reuse, and Recycle) principles in waste management, the factories can reduce their production costs. The Company’s goal is to provide customers with effective industrial waste and solid waste management within their factories before sending them to the waste separation plant to increase the ratio of waste that can be used for Refuse-derive fuel: RDF production and recyclable waste.

In 2025, a total of 109 companies, participated in the AMATA Best Waste Management Awards, representing an increase of 18.47% compared with 2024. The Company applied the assessment criteria aligning with sustainable development principles, focusing on the economic, social, and environmental dimensions. The assessment was conducted through both online and onsite evaluations. The onsite evaluations served as mandatory criteria for factories that had upgraded from the previous year, as well as for factories participating in the Gold and Platinum levels for the first time.

	2024 Award-winning factories	2025 Award-winning factories
	2024 Award-winning factories	Total factories	AMATA City Chonburi	AMATA City Rayong
Silver Prize	12	22	17	5
Gold Prize	26	30	21	9
Platinum Prize	54	57	46	11
Total	92	109	84	25

Public Sharing of Waste Management Knowledge and Practices

Academic Conference Presentation

AMATA Facility Services Company Limited presented an academic paper titled "Innovations in Industrial Waste and General Waste Management for Sustainable Green Development" at the 37^th Annual Environmental Engineering Association of Thailand Conference (EEAT 2025), held on 15 December 2025. The presentation was part of the private sector track, in which more than ten companies were selected to showcase their work. In addition, the Company’s initiative was published in the official proceedings of the 37^th Annual Environmental Technology Conference (EEAT ’68, page 10), released on 15 December 2025. This contribution aims to promote sustainable development practices and enhance business value through effective waste management innovation.

Training and Knowledge Sharing for the External Stakeholders

Throughout 2025, the Company organized a training session to raise awareness and enhance knowledge on waste management among its external stakeholders, including suppliers, contractors, tenants, factory operators within the AMATA industrial estates, and members of surrounding communities, with a total of 43 participants. The objective was to cultivate awareness and promote best practices in waste segregation, encouraging increased waste sorting at source in both factories and communities to reduce landfill disposal. Additionally, the Company expanded its collaborative waste management network to optimize operational costs, enhance revenue generation through value-added waste recovery, and distribute economic benefits among stakeholders involved in the waste management ecosystem.

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Waste Management in Industrial Estates