A U.S. tariff on Canadian imports would undermine America's industrial competitiveness by increasing the cost of aluminum by $1.5 billion to $2 billion a year, Alcoa's chief executive said.

Steel and aluminum stocks surged premarket Monday after Trump announced plans to reintroduce 25% tariffs on imported metals. U.S. Census Bureau: $11.2B in steel imports from Canada, $6.5B from ...

Pre-Market: 7:44:36 a.m. EST ...

President Trump on Monday signed proclamations to bolster tariffs on all steel and aluminum imports into the United States and crack down on attempts by China and Russia to evade penalties.

Rockwell Automation Inc.-0.12% $30.37B ...

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After hours: 7 February at 7:29:31 pm GMT-5 ...

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President Trump told reporters he will issue a 25% tariff on aluminum and steel imports on Monday. He made the announcement on Sunday while flying on Air Force One to watch the Super Bowl in New ...