In the UK, The Guardian reported that the take-up of SAF is on course to fall short of the UK government’s first annual mandate.
Production data published by the Department for Transport (DfT) covering most of 2025 shows that sustainable fuels (SAF) only accounted for 1.6% of fuel supplied for UK flights – 20% less fuel in volume than the 2% needed to fulfill the requirement.
The report noted that the government introduced the mandate in January, which requires suppliers to hit targets for SAF – which the industry has argued is important for cutting its carbon emissions – within the overall UK aviation fuel mix.
The mandatory target rises sharply from 2% in 2025 to 10% in 2030 and then to 22% in 2040, including the use of second-generation fuels that are seen as more sustainable in the long term, the report added.
So far, the supply of SAF has been exclusively produced from recycled cooking oil from Asia, predominantly China, the DfT figures showed.
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