Unifor, Canada's private sector union, and the Aluminium Association of Canada have expressed serious concerns over the immediate impact of the tariffs.

Europe already has tools to reduce the impact of Trump tariffs and Chinese over-capacity on the EU steel industry, such as stopping Russian imports of the metal, a Thyssenkrupp executive board member said on Thursday.

Metallus is poised for growth amid Trump's steel tariffs and defense orders. Shares are quite undervalued, trading at low estimated EV/EBITDA. See more on MTUS here.

Despite an exemption from 50 percent tariffs, Britain still faces a 25 percent duty because its trade deal with the United States has yet to be put in place.

When it comes to President Trump's 50% tariffs on steel and aluminum, big ticket items such as cars, washing machines and heavy machinery often come to mind, but as Jo Ling Kent reports, they're hitting smaller,

Steel Manufacturers Association Government Affairs Vice President Brandon Farris reacts to the doubling of steel and aluminum tariffs to 50% by the Trump administration.

President Trump doubled steel and aluminum tariffs to 50%. Greg Colibert, owner of Steel Products Manufacturing in Salt Lake City, joins Katy Tur to share his concerns on the new tariffs and how it will impact his business.

The Gulf state, which is reliant on the U.S. security umbrella, has pledged to invest $1.4 trillion in the U.S. over the next decade. Its sovereign wealth funds, including Abu Dhabi's $330-billion Mubadala, are already big U.S. investors, and Trump and his family have business interests in the UAE.