Management Approach

The company is committed to continuously developing its odor and air quality management processes by implementing a strategy focused on 'Control, Maintain, Improve, and Monitor.' This strategy emphasizes the integration of modern technology and appropriate innovations to enhance pollution control efficiency. Additionally, the company promotes employee and community participation in the management of odor and air quality to create strong and sustainable cooperation in environmental protection.

2024 Performance

Air Quality Risk Assessment

The company has conducted a comprehensive assessment of air quality risks, taking into account various factors that may have direct and indirect impacts from its business operations, including unpleasant odors, dust, chemicals, and various contaminants that may arise from production processes, transportation, or storage of raw materials. Based on this assessment, the company has established preventive and corrective measures as follows:

Odor Management and Control

The issue of unpleasant odors arising from rubber business operations is a significant concern that the company pays close attention to and manages diligently. Activities within the operational process, such as transportation, storage of raw materials, production, and wastewater treatment, are all sources of undesirable odors that may impact the environment, the quality of life of employees, and the well-being of the surrounding community. Therefore, to address and minimize such impacts, the company consistently implements air quality control measures outlined for all processes that are sources of odors. The following actions are taken:

Odor Management from Transportation

The company has set conditions for purchasing rubber from its suppliers, requiring that all rubber transport vehicles must be equipped with proper drainage channels and catching tanks for latex according to specified requirements.

Additionally, the company has designated specific areas within its premises for suppliers to park their transport vehicles while waiting to unload rubber, accommodating up to 200 vehicles. In this designated transport parking lot, a drainage system has been constructed to collect runoff from rubber transport vehicles, directing all rubber runoff into the company's wastewater treatment system for proper disposal.

Odor Management from Rubber Stack

The company has improved its storage areas by using a closed-system building with designated sections specifically for storing cup lump rubber. It has also established procedures for cleaning the area of newly received cup lump rubber from suppliers and continuously spraying wood vinegar and odor treatment solutions made from natural organic substances over the rubber piles, to be carried out three times a day, in order to minimize odors.

Odor Management in the Production Process

The company has installed a wet scrubber air treatment system that effectively captures dust, odors, and smoke from the production process. Additionally, a bio-scrubber system for treating exhaust air has been installed to help eliminate volatile organic compounds and reduce high concentrations of odors. Furthermore, the company has established a routine for regularly cleaning the air duct system according to usage frequency in order to reduce the accumulation of impurities in each section of the duct, thus enhancing the efficiency of the treatment system and effectively managing the release of dust and odors from the system.

Odor Management from Wastewater Treatment.

In addition to the wastewater from the production process that is treated by the company's wastewater treatment system, fresh latex runoff collected from the rubber receiving area is also directed from the transport vehicle parking lot. This runoff contains high levels of impurities and has a strong odor, which may affect the central wastewater treatment system. Therefore, the company has enhanced the management of this wastewater by channeling fresh latex runoff into an anaerobic fermentation process, which is a closed system used as feedstock for biogas production. This process can partially eliminate odors. Additionally, the company has increased the application of organic natural substances in the channels receiving fresh latex runoff in the parking lot area, which helps accelerate the breakdown of proteins that are a significant cause of odor

Management and Control of Air Quality from Emission Stacks

The company has been conducting environmental quality measurements regarding pollutants in the air released from the stack, including dust and chemicals, in accordance with the standards set forth in the Ministry of Industry's announcement on the limits of pollutants in the air discharged from factories, B.E. 2549 (2006), on an annual basis.

The company has installed a wet scrubber air treatment system at the laboratory's emission stack to help reduce heat temperature and more effectively capture dust and chemical vapors. Additionally, a bio-scrubber system for treating exhaust air has been installed near the rubber oven to enhance the efficiency of removing volatile organic compounds and treating intensive odors. Furthermore, the company is transitioning from the use of fossil fuels to cleaner energy sources, such as replacing liquefied petroleum gas (LPG) with biogas in the rubber drying process to reduce pollution from fossil fuel combustion.

The company found that the measured air quality values were below the standards set forth by the Ministry of Industry in all categories, with an average result lower than the standard by 95.87%. In 2025

The main goals and notable outcomes of the initiatives focused on air quality management are summarized in the table below.

Measurement of Airborne Pollutants Emitted from the Stack

The measurement of airborne pollutants emitted from the stack of North East Rubber Public Company Limited during August 20–24 and September 9–10, 2024, conducted by C.E.M. Technology (Thailand) Co., Ltd., showed the following results.