defence industry as the USA moves to impose tariffs on Canadian steel. Industry body UK Steel said that, with exports to America worth half a billion dollars a year, producers in Britain would be "hit hard".
Mr Ross said there was "no longer a very precise date when they might be concluded and therefore (Canada and Mexico) were added into the list of those who will bear tariffs".
"It's totally unacceptable that a country is imposing unilateral measures when it comes to world trade", he said.
Canada, Mexico and the European Union have promised to impose their own tariffs on US goods in response to Trump's announcement.
He said the US President's decision was a mistake because it created economic and commercial nationalism.
A Commerce Department investigation earlier this year determined a need to ensure adequate US steel production capacity to supply the military.
Mexico retaliated nearly immediately against U.S.
"Earlier today, this message was conveyed to Prime Minister Justin Trudeau of Canada: The United State will agree to a fair deal, or there will be no deal at all", Trump said. The tariffs will officially take effect for these markets at 12.01 a.m. on Friday. Trudeau called this moment a turning point in the Canada-U.S. relationship. "Make America Great Again" shouldn't mean 'Make America 1929 Again, '" said Sen.
The government of Theresa May had pinned post-Brexit hopes on securing a trade deal with the US, and the imposition of tariffs on steel is adding to fears that negotiating a quick trade liberalization agreement with Trump looks increasingly unlikely. We're at the front door of a trade war. "We will not be blackmailed, and we will not negotiate with a gun to our heads", she said.
Mexico buys more steel and aluminum from the United States than it sells.
With luck, the US president will think again about his whole approach to trade and global relations, recognize the costs, and back off.
Brazil, Argentina and Australia have agreed to limit steel shipments to the United States in exchange for being spared the tariffs, the Commerce Department said.