South Korea's Industry Ministry said on Monday it will actively respond to the looming 50% U.S. tariff on steel products as part of the country's ongoing trade discussions with Washington in order to minimise the impact on industry.

President Donald Trump travels to Pittsburgh Friday to celebrate a deal he once vowed to oppose - Japanese steelmaker Nippon Steel’s long-announced plans to buy iconic American steelmaker US Steel.

National Economic Council director Kevin Hassett told ABC's "This Week" that President Trump is focused on ensuring the U.S. has a domestic steel industry capable of supplying its needs "China is dumping of steel not just because they love us and they want to give us nice steel,

Mr. Trump celebrated what he calls a partnership between U.S. Steel and Japan-based Nippon on Friday, sharing details about commitments in the partnership and increased tariffs on imported steel.

President Trump is launching a new trade war, this time targeting steel, raising the tariffs from 25 percent to 50 percent. CNBC Senior Analyst, Ron Insana and James Sample, a law professor at Hofstra University,

Canada’s steel industry warned of “catastrophic” job losses, factory slowdowns and supply chain disruption after US President Donald Trump doubled tariffs on imports to 50 per cent.

President Donald Trump is holding a rally in Pennsylvania on Friday to celebrate a details-to-come deal for Japan-based Nippon Steel to invest in U.S. Steel.