This report focuses on potential routes for imported hydrogen into the UK. It covers five theoretical supply chains for import of hydrogen into the UK, including: piping of compressed hydrogen; or shipping of ammonia; liquid organic hydrogen carriers (LOHCs); and liquid hydrogen (LH2). Hydrogen may be imported to the UK, particularly from global regions with high resource availability of renewable electricity or natural gas. This project has not carried out any analysis comparing regions, production pathways or hydrogen carriers to determine which are most likely to be used for the import of hydrogen into the UK.