The United States urgently requires more aluminium for its defense sector. Domestic production faces significant challenges and long lead times for new facilities. High-purity aluminium imports are particularly vulnerable after a recent attack on a key supplier. Tariffs have had a modest impact, and the domestic supply gap remains large. Canada offers a potential short-term solution for military aluminium needs.

Donald Trump, who argued the U.S. does not need Canada, lamented that his northern neighbour did have something he wants: aluminum. Read on

The United States urgently requires more aluminium for its defense sector. Domestic production faces significant challenges and long lead times for new facilities. High-purity…