Waste and Waste Disposal Management

Supporting the Sustainable Development Goals (SDGs)

Sustainable Cities and Communities

Responsible Consumption and Production

Climate Action

Goals and Performance Highlights

Goals for 2030

Reduce construction waste by

%

compared to standard benchmarks

Increase the proportion of waste diverted from landfill to

%

Performance

Total waste 29,940 kg, a decrease of

%

compared to 2023

Waste recycling rate

%

Conducted the “SUPALAI Separate to Gain” activity, reducing carbon by

kgCO₂

equivalent to planting 275 large trees

Conducted the “Separate to Gain x AIS E-Waste” activity in collaboration with AIS, reducing carbon footprint by

kgCO₂

Commitment, Challenge and Opportunity

The Company and its subsidiaries recognize their role as a business organization that play an important part in driving sustainable development, particularly in environmental management. This includes key aspects such as systematic waste and disposal management. The Company has established environmental policies as an integral part of its business strategy to ensure that operational approaches cover the entire supply chain, from material procurement, construction, and service provision through post-delivery management, in order to reduce environmental impacts in all dimensions.

Regarding waste and waste disposal management, the Company places importance on selecting environmentally friendly materials, promoting efficient use of resources, and disposing of waste according to the principles of Reduce, Reuse, and Recycle. These practices align with the conservation of natural resources and the reduction of greenhouse gas emissions. Additionally, the Company promotes the conservation of biodiversity and ecosystems by reducing the volume of hazardous waste and managing waste according to relevant standards.

However, waste and waste disposal management remains one of thekey organizational challenges, particularly in fostering stakeholder engagement at all levels, including employees, suppliers, and customers, to drive tangible behavioral change. The Company continuously enhances knowledge and awareness of environmental management through internal training, knowledge-based communication, and embedding sustainability values as part of the corporate culture.

Furthermore, the Company has developed an environmental management system that can be regularly assessed, monitored, and improved, including evaluating material sustainability issues related to waste management in terms of both quantity and quality. This information is then used to define performance indicators and strategies to systematically achieve environmental goals.

With this commitment, the Company manages waste and waste disposal not only to comply with legal requirements or industry standards but also to support global Sustainable Development Goals (SDGs), thereby creating long-term value for both the organization and society as a whole.

Management and Strategic Approach

In order to ensure that the Company’s waste and disposal management operations are aligned and achieve maximum efficiency throughout the entire value chain, the Company has established relevant policies and guidelines, which can be summarized as follows:

The Company promotes the sufficient use of resources and minimizes environmental impacts by supporting energy conservation and efficient use of materials. It also fosters environmental awareness among employees and suppliers to strengthen a sustainable corporate culture. In addition, the Company supports the development of knowledge and innovations that help reduce waste and encourages responsible supply chain management for both society and the environment.

The Company has designated waste and waste disposal management as part of its environmental policy, aiming to reduce environmental impacts through the selection of eco-friendly materials, the efficient use of resources, and the proper disposal of waste. The Company has also established an environmental management system and related indicators, while promoting knowledge and understanding among employees and stakeholders to foster a corporate culture that genuinely values sustainability.

The Company promotes the instilling of awareness regarding the efficient use of resources among employees through the 3Rs concept: Reduce, Reuse, and Recycle, aiming to minimize waste generation, pollution, and greenhouse gas emissions. The Company also conducts public relations activities and training programs alongside implementing specific policies, such as for vehicle use, electricity, air conditioning, and office equipment, to reduce organizational waste and extend the results to society at large in a sustainable manner.

Use both sides of the paper; avoid using only one side.
Use document forwarding instead of making multiple copies to save paper.
Further reduce paper waste by avoiding full-page fax cover sheets and use smaller sheets that can be easily folded or cut for faxing.
Transmit various information and news through computer systems instead of printed documents.
For certain information that can be read on a computer, avoid printing it unnecessarily.
Reduce the use of products with non-recyclable packaging, such as foam or plastic, and choose packaging that can be reused (Reuse) or recycled (Recycle).
The Company supports products with packaging made of materials that can be recycled, such as glass, paper, metal, and certain plastics.
Avoid using disposable paper plates or cups during events and gatherings.

The objective is to maximize the utilization of construction material waste within the project so that it does not become waste that must be disposed of externally, as well as to help reduce costs related to the handling of construction waste. The project will also minimize external environmental impacts by implementing waste separation management to standardize construction waste handling.

Target

Reduce construction waste to a standard amount of 3,300 tons.

As the Company is well aware that residential construction is an activity that consumes significant resources and generates various types of waste, such as concrete debris, wood, plastics, metals, and construction packaging, improper management can impact the environment, community health, and business sustainability. Therefore, waste management in construction operations must follow a systematic approach, covering the entire process from upstream to downstream, in alignment with international standards and best practices, as follows.

1. Waste Prevention and Minimization

Design construction projects based on the principles of Design for Environment (DfE) and Lean Construction to minimize excessive resource use.
Select materials that meet environmental standards, such as recycled materials, reusable materials, or materials with long lifespans.
Plan material procurement accurately to reduce waste from leftover materials and excess packaging.

2. Sorting and Recycling

Designate specific areas and containers for sorting different types of waste, including general waste, recyclable waste, hazardous waste, and construction debris.
Coordinate with subcontractors and recycling partners to channel reusable materials back into the circular process, such as crushed concrete for backfill and scrap steel or aluminum for recycling.
Establish a tracking system for the quantity of sorted and reused waste to evaluate operational efficiency.

3. Hazardous Waste Management

Identify and store hazardous waste, such as paint, coatings, lubricating oils, and various chemicals, in accordance with international standards (e.g., Basel Convention and OECD guidelines).
Use licensed waste disposal service providers with traceability systems to reduce legal and environmental risks.
Provide safety training on hazardous waste management for employees and relevant personnel.

4. Reuse and Energy Recovery

Reuse materials that are still usable, such as wood, beams, and steel, in new projects or donate them to communities and social projects.
Consider using waste-to-energy (WtE) technologies for waste that cannot be recycled.
Promote the application of Circular Economy principles in building lifecycle design to enhance long-term resource efficiency.

5. Effective Governance

Establish waste and waste disposal management policies and practices that cover the entire organization and suppliers in the supply chain.
Integrate environmental management systems in accordance with international standards, such as ISO 14001: Environmental Management System.
Prepare transparent performance reports by disclosing the amount of waste generated, the quantity recycled, and the volume properly disposed of in the annual sustainability report.

6. Stakeholder Engagement

Raise awareness among employees, suppliers, and subcontractors about responsible waste management.
Promote community engagement in project areas, such as organizing waste separation activities, campaigns to reduce plastic use, and creating green spaces from recycled materials.
Listen to feedback and suggestions from the community, government agencies, and other stakeholders to continuously improve waste management practices.

In addition, the Company communicates and fosters awareness of resource use through various methods, such as posting informational stickers, setting up display boards, and providing training under the 3Rs concept—Reduce, Reuse, Recycle. This aims to maximize resource utilization, reduce the energy used in waste disposal, minimize pollution, and lower greenhouse gas emissions.

Working with other organizations to reduce waste

Being a part of the cooperation network of Circular Economy in Construction Industry (CECI) to promote the sustainable use of resources in the construction industry.

Participating in Circular Economy Acceleration (CECI)

Plant pots made from leftover lightweight concrete scraps and Plant pots made from used silicone tubes

/

Sustainable Community Recycling Management Program

The Company has implemented a long-term recycling waste management program over a period of 3–5 years through collaboration between the Company, residents, and the Subdistrict Administrative Organization (SAO).

The initiative focuses on the separation and collection of recyclable waste—such as cardboard, bottles, and glass—from households, with an established system for collecting and transporting the waste to certified recycling facilities. This effort helps reduce the volume of waste sent to landfills and promotes sustainable waste management practices at the household level.

In addition, the Company collaborates with local authorities to organize educational activities on waste segregation and recycling to enhance environmental awareness among residents and to encourage continuous community stakeholder participation.