St1 is a Nordic energy company headquartered in Helsinki, Finland, active across Finland, Sweden and Norway. The company focuses on the production, refining and distribution of transport fuels and operates refining assets including the St1 Refinery in Gothenburg, Sweden. Its activities span fuel supply to retail and wholesale markets and the development of renewable fuel solutions.
From a chemicals and biofuels perspective, St1 produces renewable hydrocarbons and biocomponents alongside conventional refinery products. Its portfolio includes hydrotreated vegetable oil (HVO) diesel, sustainable aviation fuel (SAF), bio-naphtha and bio-LPG, as well as advanced fuel ethanol made from waste and residue feedstocks. The company develops and applies processes using inputs such as tall oil, used cooking oil, animal fats and lignocellulosic residues, integrating hydrotreatment and advanced fermentation technologies. Bio-naphtha and bio-LPG streams from its operations can serve as drop-in feedstocks for petrochemical production, supporting lower-carbon value chains in the chemical industry.