Singapore Airlines has signed a binding deal covering up to 4,800 tonnes of sustainable aviation fuel from Aether Fuels’ planned Project Beacon, giving the Singapore waste-carbon project an airline customer.
The agreement runs for three years, and deliveries are scheduled to start in 2028. Project Beacon is under development at Aster’s refining complex on Pulau Bukom. The release gives no annual delivery breakdown, and the 4,800-tonne ceiling does not guarantee that the airline will take the full amount.
Aether plans to use its Aurora technology to process waste-carbon inputs, including biomethane and industrial waste gases. The companies say the fuel is intended for certification under the Carbon Offsetting and Reduction Scheme for International Aviation (CORSIA).
They present this route as an alternative to hydro-processed esters and fatty acids (HEFA), which relies on lipid-based feedstocks. Aether and Aster cited limited supplies of used cooking oil as one reason to develop other pathways in a 2025 project announcement.
According to the joint release, Singapore Airlines is the first airline buyer for Project Beacon, and this is its first purchase of fuel made with the technology. The agreement follows a February 2025 memorandum of understanding under which Singapore Airlines Group considered sourcing neat sustainable aviation fuel from Aether for five years after commercial production began, with an option to extend for another five years.
Conor Madigan, Aether Fuels’ co-founder and CEO, called the deal “a strong signal of committed demand.” Aether says it aims to begin a larger commercial plant by 2031, with at least 10 times Project Beacon’s production capacity.
In November 2025, Aether and Aster said Project Beacon was expected to begin commercial operations in 2028, with total fuel capacity of up to 50 barrels per day, or 2,000 tons per year. That figure covers all fuel output; the announcement did not specify how much would be sustainable aviation fuel. Commercial operations and the first contracted deliveries are both scheduled for 2028.
