St1 is a Nordic energy company headquartered in Helsinki, Finland. The group produces, refines, and distributes transportation fuels and other energy products across Finland, Sweden, and Norway, including operations at the St1 Refinery in Gothenburg, Sweden. Its activities span conventional refining alongside an increasing focus on low‑carbon liquid fuels.
St1 develops and manufactures renewable fuels for hard‑to‑electrify transport, including hydrotreated vegetable oil (HVO) diesel, sustainable aviation fuel, bio‑naphtha, and bio‑LPG. The company also runs research, development, and industrial projects in advanced bioethanol made from waste and lignocellulosic residues, such as its Cellunolix technology. In addition, St1 invests in supporting infrastructure, including hydrogen production and logistics for renewable feedstocks and products. Through these operations, St1 supplies fuels to wholesale and retail markets while targeting lower lifecycle emissions from liquid energy.