According to the Helsinki Times, Finland’s UPM, Neste, and St1 are jointly advancing plans to produce sustainable aviation fuel (SAF) from wood residues. UPM’s plant in Lappeenranta is ready to begin production, using crude tall oil—a byproduct from wood processing that is already used to make renewable diesel—as its main feedstock. The company is currently awaiting ASTM approval to use crude tall oil as an SAF feedstock, a process that could take up to two and a half years. Once approved, the plant will immediately commence commercial production. The facility currently has an annual renewable diesel production capacity of 130,000 tonnes.