US tariffs of 50 per cent on steel and aluminium will take effect from June 4 after Donald Trump signed an executive order on Tuesday escalating his global trade war.

U.S. President Donald Trump has promised to hike nearly all of his tariffs on foreign steel and aluminum to a punishing 50% on Wednesday, a move that would hammer businesses from automakers to home builders,

President Donald Trump has signed an executive order doubling tariffs on imported steel and aluminum to 50 percent, effective June 4, 2025.The move aims to protect U.S. national security by curbing what the administration describes as a threat from excessively low-priced metal imports that undermine domestic industries.