U.S. President Donald Trump's planned 25% tariffs on all steel and aluminum imports would be added onto other levies on Canadian goods, resulting in a total 50% tariff, a White House official said on Tuesday.

"The change in the current trade scheme for aluminium and steel would be detrimental to the productive fabric in aggregate terms," the lobby said in its note, adding that Spain's total cast iron and steel exports to the U.S. reached 944 million euros ($977 million) in 2023.