President Donald Trump plans to impose 25% tariffs on all imports of steel and aluminum into the US, broadening his trade restrictions to some of the country’s top trading partners and seeking to protect domestic industries that helped him win battleground states last year.

U.S. President Donald Trump's plan to impose new 25% tariffs on all imports of steel and aluminium into the United States weighed on shares of producers in Asia on Monday as it threatened to disrupt trade flows in the metals.