In 2023, PetroChina 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) | 2023 | 2022 | 2021 | 2020-2019 |
|---|---|---|---|---|
Total Waste Generated | 355,500a | 248,500a | 260,300a | |
Total Waste Recovered | N/A | N/A | N/A | |
Total Hazardous Waste Generated | 130,000a | 94,300a | 139,600a | |
Non-Hazardous Waste Disposed | N/A | N/A | N/A |
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In 2023, PetroChina generated a total of 355,500 metric tonnes of waste.a
Of this amount, 36.57% of PetroChina'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.63.43% was identified as non-hazardous waste, generally considered less harmful and subject to lighter regulatory controls.a
Since 2021, PetroChina's total waste generation increased by 36.57%, including a 43.06% rise in 2023, 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, PetroChina reduced the hazardousness of its waste by 31.81%, with a further 3.64% decline in 2023, suggesting a sustained and meaningful shift toward safer waste profiles and lower environmental impact.a
Overall, PetroChina is generating more waste but has significantly reduced the share of hazardous materials, suggesting a partial decoupling of volume and toxicity that could reflect more responsible inputs or enhanced treatment.a