High-Temperature Fischer-Tropsch (or HTFT) is performed at temperatures of 330°C-350°C. HTFT uses an iron-based catalyst. Sasol used HTFT in Coal-to-Liquid plants (CTL). Low-Temperature Fischer-Tropsch (LTFT) is performed at lower temperatures and uses a cobalt-based catalyst. Shell used LTFT in an integrated Gas-to-Liquid (GTL) plant in Bintulu, Malaysia.