President Trump has reimposed 10% duties on imports of unwrought aluminum from Canada under the section 232 “national security” program. That follows a 77.3% surge in shipments in the 12 months to June 30 following the removal of the original section 232 duties which formed part of the run-up to the signing of the USMCA trade deal. The tariffs will help suppliers from other countries as well as American producers. U.S. seaborne imports linked to non-Canadian suppliers including Dubai Aluminum and Norsk Hydro climbed by 23.1% and 28.5% year over year in Q2 while Rusal retur...