• $15 million in new financing will accelerate Aether Fuels’ first commercial sustainable aviation fuel facility in Singapore
• Facility aims to produce roughly 2,000 tons of CORSIA certified SAF annually with projected emissions reductions exceeding 70 percent
• Total funding now exceeds $60 million with new strategic investors and regional leadership expansion

Sustainable fuels technology company Aether Fuels has raised $15 million in convertible note financing to accelerate development of its first commercial scale sustainable aviation fuel facility, a project that puts Singapore at the center of a fast evolving global market for low carbon aviation fuels.

Founded in 2022, Aether is developing liquid fuels aimed at decarbonizing aviation and maritime transport. Its proprietary Aurora technology converts a broad set of feedstocks including captured carbon dioxide, industrial waste gases, biogas, gasified municipal waste, and waste biomass into sustainable fuels that meet aviation specifications. For heavy transport and aviation, which lack cost-effective electrification pathways, liquid fuels remain an essential part of long-term decarbonization strategies.

Commercial Facility and Production Outlook

The new financing will support Project Beacon, a 50 barrel per day facility expected to produce roughly 2,000 tons of CORSIA certified sustainable aviation fuel each year. The company plans to convert industrial waste gas and biomethane into fuels that meet international sustainability criteria. Engineering is underway, with construction targeted for this year and commercial operations scheduled for 2028. Aether estimates greenhouse gas emissions reductions of more than 70 percent versus conventional jet fuel.

Singapore’s interest in the project intersects with its ambition to position the city-state as a regional hub for sustainable fuels, green maritime solutions, and carbon services. Regulatory developments around book-and-claim systems, emissions disclosure, and sustainable aviation pathways are advancing in parallel across Southeast Asia, Europe, and the United States.

Financing and Investor Interest

The round included new investors Aster Ventures and Singapore’s EDBI, alongside participation from existing investors AP Ventures, Xora Innovation, CDP Venture Capital, TechEnergy Ventures, Foothill Ventures, Eni Next, and Chevron Technology Ventures. With the latest raise, Aether’s total funding exceeds $60 million.

Investor appetite for sustainable aviation fuels continues to grow as airlines, airports, and corporate travel programs prepare for tightening compliance mechanisms and rising demand for verifiable emissions reductions. SAF markets remain supply constrained, and projects with clear line of sight to commercial scale are viewed as strategically valuable.

Leadership and Execution Strategy

Alongside the financing, Aether announced several leadership appointments to advance execution and regional scale-up. Stu Stott was named Global Vice President of Projects and will be based in Singapore with responsibility for commercial facility delivery. Mei Chia, who joined in 2023, will lead a planned Singapore research and development center expected to open in 2026. TC Goh will continue to lead business development across Southeast Asia.

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Conor Madigan, Founder and CEO of Aether Fuels, described the past year as pivotal. “Aether closed 2025 with strong momentum across leadership, technology and project execution. First, we are thrilled to add Aster Ventures and Singapore’s EDBI as new investors. Second, over the past 12 months, we have expanded our global team and advanced our first commercial facility in Singapore, whilst simultaneously maturing and scaling our core technology through our pilot and demo projects in the US.”

Implications for Policy, Markets, and Climate

The policy environment for SAF is tightening as governments consider mandates, incentives, and credible carbon accounting structures. Demand is also influenced by CORSIA obligations, corporate Scope 3 targets, and voluntary aviation commitments, which are pushing airlines toward offtake agreements and long-term price hedging strategies. SAF developers must navigate feedstock availability, certification pathways, and infrastructure integration challenges while competing against fossil jet fuel on price.

For investors and corporates, Aether’s positioning reflects a broader shift from demonstration to early commercial deployment in hard-to-abate sectors. As Europe, the United States, and parts of Asia explore coordinated climate regulation for aviation, new projects in Singapore and Southeast Asia could reshape regional market geography and supply chains.

Sustainable fuels for aviation remain a central test for global net-zero strategies. If manufacturers can produce at commercial scale while meeting sustainability, cost, and certification requirements, SAF could become a foundational climate tool for aviation and logistics sectors that lack near-term electrification substitutes. The outcome carries global relevance given aviation’s projected emissions trajectory and the geopolitical competition to anchor emerging supply chains.

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