Systematic misconduct spanned years, affecting products sent to more than 680 companies.
Canada and Mexico would not be spared from his plans for special import taxes.
US runs an overall surplus with Canada thanks to services.
Action breaks with a Pentagon recommendation, which warns a wide-ranging move would jeopardize national security partnerships.
Defence secretary James Mattis said the military had more than enough steel for its needs, expressed concern broad tariffs would hurt key allies.
Tariffs on imports of steel and aluminum threatens a global trade fracas.
Has to make decisions on steel by April 11 and on aluminum by April 19.
One of Trump’s tariff options could hit Canada steel and aluminum producers hard.
Plans to use the money for capital investments, pension payments, and to increase its offerings in specialized steel products.
EU is drawing up a list of US products to target – including orange juice and Kentucky bourbon – if Washington restricts imports of aluminum and steel.
Looking at “tariffs and/or quotas” on imports arguing they pose a threat to national security.
Trump has approved higher tariffs on Chinese aluminum, washing machines and other goods.
Feels merger may reduce competition for a number of flat carbon steel products.
Bedrock Industries is expected to hold a roughly 86.5% interest in the company following the offering.
Proceeds also to fund early payment to certain pension and other post-employment benefits trusts.