SK Energy

SK Energy is a major South Korean refiner and energy producer that operates within the aerospace upstream value chain as a supplier of liquid fuels. The company manages extensive refining infrastructure, most notably the Ulsan Complex, where it processes crude oil into a variety of petroleum products. Its primary role in aviation is the production and distribution of conventional Jet A-1 fuel, though it is currently transitioning towards the production of sustainable alternatives to meet international decarbonisation standards. The organisation is actively developing Sustainable Aviation Fuel (SAF) through co-processing methods, using bio-based feedstocks alongside traditional petroleum within its existing refinery units. While specific long-term off-take agreements with individual airlines are frequently subject to commercial sensitivity, the company collaborates closely with domestic flag carriers and regional Asian airports to integrate renewable fuels into their supply chains. It maintains a strategic position as a critical fuel provider for the South Korean aviation market and export hubs. Prospective buyers or partners should verify the specific carbon intensity (CI) scores of the fuel batches provided and ensure that all SAF production meets CORSIA eligibility requirements or equivalent international certification standards. It is necessary to confirm the specific percentages of bio-feedstock used in co-processed blends to ensure compliance with regional mandates. Verification of the current throughput capacity at the Ulsan facility for renewable fuels is also recommended before finalising supply contracts.