Group 1 - The UK Renewable Transport Fuel Association (RTFA) is urging the UK government to urgently revise the Sustainable Aviation Fuel (SAF) authorization policy to allow domestically produced crop-based bioethanol for aviation fuel production [1] - The RTFA warns that without action, the domestic bioethanol industry in the UK could face a fatal blow due to the new US-UK trade agreement allowing tariff-free imports of US ethanol [1] - The new trade agreement, effective from June 30, includes a tariff-free import quota of 1.4 billion liters of US ethanol, nearly equivalent to the total annual domestic market in the UK [1] Group 2 - UK producers such as Ensus and Vivergo Fuels are facing severe losses and shutdown risks due to the economic unviability caused by the tariff-free access of US ethanol [1] - Vivergo Fuels, a subsidiary of AB Foods, has set a shutdown deadline for mid-September, currently incurring losses of $3 million per month and has ceased raw material procurement since June [1] - Ensus, owned by CropEnergies, is also considering shutdown and is set to be put up for sale starting December 2024, with a reported loss of £19.86 million in the 2024 financial report [1]