Waste Management (GRI 306-1, 306-2)
The Company recognizes the importance of managing waste and unused materials with a focus on making the best use of waste, including adding value thereof by using technology which, in addition to reducing environmental impacts, also helps to reduce the cost of waste disposal arising from the Company’s operations, both directly and indirectly. The Company has consistently implemented waste management practices based on the 3Rs principles (Reduce, Reuse, Recycle) and aligned with the Bio-Circular-Green (BCG) Economy Model. These efforts aim to minimize waste generation and add value to unused materials. In addition, the Company promotes environmental awareness among employees through initiatives such as the Waste Bank Project and encourages responsible practices among suppliers in the supply chain through the Supplier Code of Conduct. This includes efficient resource utilization and the selection of sustainable materials.
Management Guidelines
Manage waste in accordance with the 3Rs principle
(Reduce, Reuse, Recycle)
by optimizing work processes to minimize waste generation,
and emphasizing sorting and reusing of materials.
and emphasizing sorting and reusing of materials.
Create value and benefits
from waste and unusable materials
by adopting the principles of the circular economy.
by adopting the principles of the circular economy.
Maximize the use of raw materials and existing materials
for materials used, by developing and creating added value
from production to delivery to consumers.
Selection of sustainable materials.
Goals
Reduce the amount of waste generated per product unit
by 10 percent
compared to the base year 2022 by 2026.
Zero waste
to landfill by 2030.
Performance Results
Total waste intensity
(Unit: Kg per ton of product)
Percentage of total waste intensity reduction compared to base year
(Unit: Percent)
Total waste directed to landfill
(Unit: Ton)
Note: Performance data for 2024 has been verified by a third party.
Waste and unused materials management projects
S-Brick: Sustainable Brick, Green Brick Project
Based on the concept of the Circular Economy, the Company has repurposed ash from the combustion of wood chips, a biomass fuel used in boilers, as a component in the production of paving bricks for walkways within factories and surrounding communities. This initiative helps reduce the amount of waste sent to landfills, minimizes environmental impacts from waste disposal, and adds value to otherwise discarded materials.
In 2025, the Company operated through 12 branches of blocked rubber factories, namely Sri Trang Agro-Industry Public Company Limited in Kalasin, Sa Kaeo, Sikao, Huai Nang, Phitsanulok, Loei, Udon Thani, Sakon Nakhon, and Ubon Ratchathani branches, Rubberland Products Company Limited in Bueng Kan, Buriram, and Mukdahan branches
Ash from wood
chip combustion
S-Brick
Sustainable
Brick,
Green Brick
Project
Benefits received in 2025
Benefits received in 2025 104.54 tons
Utilized the ash to produce paving bricks for landscape improvement,
with a total value of THB 469,059
with a total value of THB 469,059
The detail can be found in the 2025 Sustainability Report under the section on Waste and unused materials management projects
Useful Soil project
The Company continuously implements projects to create value from resources and reduce environmental impacts. Sediment from the wastewater treatment system, which has been tested and found to be high in nitrogen a key nutrient for plant growth and free from harmful heavy metal contamination, is repurposed as a soil amendment for agricultural lands and the Company’s rubber plantations, generating benefits for local farmers and communities. In 2025, the company implemented projects in 3 factories: Sri Trang Agro-Industry Public Company Limited, Pattani, Narathiwat and Thung Song Branch.
Sludge from
the wastewater
treatment system
Useful Soil
Benefits received in 2025:
Reduced landfill disposal by 2,372 tons
Repurposed sediment as a soil amendment for the Company’s rubber plantations and local farmers’ agricultural lands
Benefited 11 farmers in the community through the use of sediment as a soil amendment, with a total value of THB 7,909,917
Waste Bank project
The Company has implemented the Waste Bank project to raise awareness among employees about waste-related problems and impacts as well as encouraging employees to separate waste properly for recycling through waste sorting activities.
In 2025, the Company implemented the project through 29 factories, with a total of 1,526 employees. Additionally, the company registered the project to Low Emission Support Scheme (LESS) with the TGO.
Benefits received in 2025
A total of 1,526 employees recognized the importance of waste segregation for recycling and registered as members of the Waste Bank
Sorted 55,419 kg of waste for recycling.
Reduced greenhouse gas emissions by 172,157 kgCO2eq, equivalent to planting 10,693 Sri Trang trees.
In addition, the Company has implemented other waste management related projects to reduce waste and focus on the utilization of waste, including:
- Management of unused materials, whereby they are sorted and put in storage for further reuse (Waste to Value, STA Champion).
- Inventions using recycled materials contest project.
