Air Quality and Odor Management • NOx SOx TSP Management IRPC pays great attention to the control of pollutants emitted from stacks. Begin by ensuring that combustion factors are under control in order to achieve efficiency and reduce environmental impact, such as by using environmentally friendly fuels such as Fuel Gas. Also, the significance is the control of combustion conditions in the furnace to minimize pollutants, nitrogen oxides, sulfur oxides and total suspended particulates (NOx SOx TSP). Additionally, the company opts for Low NOx Burner technology in the furnace, resulting in a significant reduction in NOx emissions from the stack. In addition to the combustion and fuel technology, in 2023, IRPC also has scheduled to conduct a turnaround, a scheduled large-scale maintenance activity focusing on preserving the combustion efficiency of equipment to ensure smooth and environmentally friendly operations. In the area of monitoring, IRPC has collaborated with third-party consultants to conduct air quality measurements from the emission stack. The results of the measurement met the control criteria of IRPC Industrial Zone as well as the standard value of pollutant emissions outlined in the Notification of the Ministry of Industry. This reaffirms the effectiveness of the company’s air pollution management in terms of nitrogen oxides (NOx), sulfur oxides (SOx), and total suspended particulates (TSP). • Volatile Organic Compounds (VOCs) Management IRPC has initiated the Enclosed Ground Flare (EGF) Installation project to manage effluent gas emissions from the plant. The EGF uses an efficient burner design, which results in a high combustion efficiency at 99.5%, as well as reduction in black smoke and volatile organic compounds (VOCs), no thermal radiation, no visible flame and no odor/low noise. Launched in 2022, the operations are progressing with completion targeted for 2025. Additionally, preventive control is in place to prevent VOC emissions during maintenance work employing Green Turnaround concept, which focuses on assessing the risks of emissions from various activities in order to find appropriate measures to reduce the discharge volumes. Procedures such as checking the equipment before turning on the system for maintenance, as well as surveillance measures around the factory fence are intended to confirm the effectiveness of practices and for assessment of significant emission sources in order to address the root cause of problems and find long-term solutions. The company adopts the standard Code of Practice (COP) guidelines to prevent the emission of VOCs emissions from significant emission sources, including storage tanks, incinerators, and maintenance activities. These practices are applied in real operations to address VOCs-related issues effectively. Water Management Recognizing that water is a crucial resource not only for IRPC’s business but for all sectors of society, IRPC takes on the responsibility for water resource management in collaboration with government agencies and other water users within the PTT Group as well as external parties. To drive for concrete actions, IRPC has also set water-related targets to align with public policies and meet the needs of surrounding communities. Upstream management is critical to ensuring that the company’s operations do not interfere with water consumption patterns linked to ways of life of people in the agricultural sector, the needs of other industry sectors, and the general public. To ensure responsible and sustainable water resource management, the water user committee is formed with the goal of achieving a fair distribution of natural water resources between IRPC and local communities. This also support the company’s effort to ensure operations run smoothly and continuously, without interruption due to scarcity or shortage. In addition, engagement with the committee informs the company’s water management target setting and implementation decisions. Moreover, the company helps distribute water to communities during the dry season. In terms of water-related risk assessment, IRPC has conducted the risk management related to water, covering physical risks i.e., water volume, water quality and risks related to regulations and provisions from risk assessment. According to the Aqueduct Water Tool of the World Resource Institute (WRI), it is found that IRPC is located in the low baseline water stress. Consequently, the assessment result is used to develop water management plan, as well as to study and forecast the use of water in future business operation. 148 Business-Driven Sustainability IRPC Public Company Limited
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