United States President Donald Trump signed a decree on Tuesday to double import tariffs on steel, aluminum and their derivatives, raising rates from 25% to 50%.
The measure comes into force on Wednesday (4) and aims, according to the US government, to ensure the country’s national security.
The United Kingdom is the only exception, maintaining the tariff by 25% after a recent commercial agreement with the US.

Increasing tariffs directly impacts major US business partners, such as Canada, Mexico and Brazil.
Brazil is the second largest steel supplier for the US market, with exports that totaled 4.1 million tons in 2024, behind only Canada, which exported 6 million tons. Mexico appears in third place, with 3.2 million tons.