An investigation has exposed Finland-based Neste, a leading producer of sustainable aviation fuel, to fraud risks through its Malaysian supply chain. The company's top supplier in Malaysia was found accepting fresh palm oil while labeling it as used cooking oil, according to the investigation, with no verification processes in place.
This mislabeling undermines the climate benefits of sustainable aviation fuel, as fresh palm oil carries significantly higher carbon emissions than genuine waste cooking oil. Used cooking oil typically has near-zero lifecycle emissions since it's a waste product, while fresh palm oil production involves deforestation and land-use changes that generate substantial greenhouse gas emissions.
The fraud affects the economics of the sustainable aviation fuel market, where airlines pay premium prices for lower-carbon alternatives to conventional jet fuel. Neste has built its business model around converting waste oils into aviation fuel, marketing these products as having reduced carbon footprints compared to fossil-based alternatives.
The discovery highlights broader challenges in verifying feedstock authenticity across global biofuel supply chains. Malaysia is a major palm oil producer, and the country's role in sustainable fuel production has drawn scrutiny over traceability and environmental standards in the growing market for aviation decarbonization.
The investigation raises questions about certification systems for sustainable aviation fuels and whether current verification mechanisms are sufficient to prevent fraudulent practices that undermine climate goals in the aviation sector.