In 2025, Thai Oil conducted an environmental assessment and disclosed corporate waste management data in accordance with recognized sustainability reporting standards.The company provided a breakdown of its waste by type (hazardous vs non-hazardous) and treatment method (recovery vs disposal), enabling greater transparency into its waste handling and environmental practices.
| Metric (tonnes) | 2025 | 2024 | 2023 | 2022-2019 |
|---|---|---|---|---|
Total Waste Generated | 15,406a | 8,485a | 14,273a | |
Total Waste Recovered | 13,883a | 9,871a | 10,639a | |
Total Hazardous Waste Generated | 13,688a | 7,487a | 12,161a | |
Non-Hazardous Waste Disposed | 527a | 311a | 778a |
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In 2025, Thai Oil generated a total of 15,406metric tonnes of waste.a
Of this amount, 90.11% of Thai Oil's total waste generated was recovered through methods such as recycling, reuse, or composting, while 68.54% was disposed of through landfilling, incineration, or combustion.a
In 2025, Thai Oil reported a total waste generation of 15,406 metric tonnes, of which 90.11% was recovered through recycling, reuse, or composting.This high recovery rate suggests that Thai Oil has implemented strong circular economy practices and actively prioritizes sustainable waste management.a
Since 2022, Thai Oil's total waste generation increased by 36.6%, including a 81.57%increase in 2025, indicating a persistent upward trend that may reflect scaling operations, inefficiencies in resource use, or a lack of effective waste minimization practices.a
Over the same period, Thai Oil's waste recovery rate declined by 7.19%, with a further 22.54% drop in 2025, underscoring a weakening in waste diversion performance and a potential drift away from circular waste strategies.a
Overall, Thai Oil is generating more waste while simultaneously backsliding on recovery efforts, both in the short and long term. This dual negative trend raises concerns about the company’s waste management priorities and its alignment with sustainability goals.
In 2025, Thai Oil generated a total of 15,406 metric tonnes of waste.a
Of this amount, 88.85% of Thai Oil's total waste generated of was classified as hazardous waste, characterized by properties such as toxicity, flammability, corrosiveness, or reactivity that may pose risks to human health, ecosystems, or the environment.11.16% was identified as non-hazardous waste, generally considered less harmful and subject to lighter regulatory controls.a
Since 2022, Thai Oil's total waste generation increased by 36.6%, including a 81.57% rise in 2025, reflecting a persistent upward trend that could be linked to operational growth, inefficient material use, or limited investment in waste prevention systems.a
Over the same period, the share of hazardous waste increased by 3.79%, while holding steady in 2025, pointing to potential stagnation in efforts to reduce harmful waste types after a period of worsening performance.a
Overall, Thai Oil's waste and hazardousness trends are mixed or inconclusive. A more detailed review of its materials, industry standards, and operational changes would help clarify the net environmental impact of its waste strategy.a
In 2025, Thai Oil reported that 13,688 metric tonnes of its total waste output were classified as hazardous. This represents 88.85% of its overall waste generation.a
The company treated this hazardous waste using a combination of methods.Approximately 12.58% was managed through recovery methods, indicating a moderate integration of circular practices into its hazardous waste management. However, a significant share was still directed toward disposal, highlighting room for improvement in reducing the long-term impact of hazardous materials.a