Air pollution Management

Importance

(GRI 3-3a., GRI 3-3b.)

OR recognizes that air pollution impacts are significant, as they can affect the environment, human health, and the well-being of communities and employees. In addition, inadequate management may pose risks to business operations and public trust. Therefore, OR places strong emphasis on preventing and mitigating such impacts across OR’s production, transportation, and service operations.
Accordingly, OR implements various initiatives to reduce and alleviate impacts, while working closely with business partners and suppliers to ensure that environmental management extends throughout the business value chain and minimizes the potential escalation of negative impacts. Furthermore, OR promotes clean energy and the transition toward more environmentally friendly processes, which not only helps protect public health but also supports OR’s sustainable development direction.

2025 Targets

(GRI 3-3e.)

Management Approach

(GRI 3-3c., GRI 3-3d., GRI 3-3e., GRI 3-3f)

OR emphasizes pollution control in compliance with legal requirements to prevent negative impacts from pollution caused by its operations. The main type of pollutant generated by OR’s activities is Volatile Organic Compounds (VOCs), which are produced during various activities related to fuel storage, transportation, and trading. Therefore, OR has established a VOCs inventory to monitor emissions from activities at Petroleum terminals, Oil depots, Gas Depots, PTT Stations, and LPG cylinder refurbishing plants. This inventory is updated annually to ensure continuous monitoring of VOCs volatilization in the areas. The data is then analyzed to develop systems and monitoring to reduce VOCs volatilization into the environment.
Moreover, OR has established the specified feedback channels as prescribing in PTT Oil and Retail Business Public Company Limited requirements. These channels allow stakeholders to share their opinions, which are then utilized to further improve management practices in the future
OR manages the main air pollutant, VOCs, through various projects and activities as follows:

1. Switching the Fuel Transfer Method for Tankers
Switching the fuel transfer method for tankers from top loading to bottom loading, which is a closed system and thus reduces the evaporation of fuels during transportation and discharge. Additionally, Vapor Recovery Units (VRUs) have been installed between the fuel storage tanks and tanker trucks during fuel transfers at Phra Khanong Oil Depot, Lam Luk Ka Oil Depot, Saraburi Oil Depot, Surat Thani Petroleum Terminal and Songkhla Petroleum Terminal and all PTT Stations.

2. Vapor Recovery Units (VRUs) Control System Installed at the Fuel Dispensers
Vapor Recovery Units (VRUs) control system has been installed at the fuel dispensers during fuel transfers into customers’ car tanks at PTT Stations. This installation is carried out at PTT Stations in compliance with regulations and in sensitive community areas, such as schools, to prevent adverse impacts on the surrounding communities of PTT Stations.

3. Air Pollution Control
OR has implemented measures to enhance air pollution control to ensure that, emissions from both factories and office areas, as well as surrounding areas are complied with environmental regulations and standards. OR also controls Nitrogen Oxides (NOx), Sulfur Oxides (SOx), and Total Suspended Particulates (TSPs) from its operations at the sources. For operations at Gas depots, Oil depots, and Petroleum terminals, OR adheres to the standards specified in the Environmental Impact Assessment (EIA) reports. Moreover, OR employs advanced technologies to effectively reduce or eliminate air pollutants.
Moreover, to ensure consistent air quality control, OR conducts regular air quality monitoring through registered external laboratories on an annual basis.

4. Factories in OASYS
Factories in Café Amazon Lifestyle Business Center (OASYS) has equipped the After Burner with a Catalytic filter. This process is to re-incinerate flue gas at high temperatures, eliminating odors and smoke. Additionally, ProAir systems have been installed to treat smoke odors using a plasma system before releasing them into the atmosphere.

5. LPG cylinder refurbishing plants
At LPG cylinder refurbishing plants, the scrubbers are equipped in the painting process to filter pollutants, and Activated Carbon Filters are installed to eliminate odors. Furthermore, OR has begun installing Regenerative Thermal Oxidizers (RTO) system, a highly efficient air pollutant removing system, to remove VOCs, such as paint fumes, odors, solvents, and biogas vapors.

Performance

In 2025, OR implemented the following initiatives:

1. “Bio Very Low Sulphur Fuel Oil (VLSFO)” for Marine Transportation
OR, in collaboration with RCL Public Company Limited, signed an agreement to supply a new alternative fuel, “Bio Very Low Sulphur Fuel Oil (VLSFO),” for cargo vessels. This initiative represents Thailand’s first development of Biofuel utilization in the maritime transportation sector. The developed Biofuel is a blend of Very Low Sulphur Fuel Oil (VLSFO) and UCOME (Used Cooking Oil Methyl Ester), which is produced from used vegetable oil through a refining process.
The use of Biofuel helps reduce greenhouse gas emissions and air pollutants and also forms part of compliance with the requirements of the International Maritime Organization (IMO) to decarbonize the global maritime transportation industry.