US tariffs of 50 per cent on steel and aluminium have come into force on Wednesday, a day after President Donald Trump signed an executive order escalating his global trade war.
The new tariffs took effect at midnight on Wednesday, doubling the 25 per cent levies on the sectors that the president had introduced in March.
Duties on UK steel and aluminium will remain at 25 per cent — a carve-out for London after it signed a trade deal with Washington last month.
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