Days after a surprise announcement from President Donald Trump about a $14.9 billion deal, the companies involved have remained mum.

South Korea's acting President Choi Sang-mok on Tuesday said his government would seek talks with the U.S. administration about Washington's 25% tariffs on steel and aluminium imports to reflect the interests of its companies.

President Donald Trump has ordered a 25% import tax on all steel and aluminium entering the US in a major expansion of existing trade barriers. The tariffs, which will increase the costs of importing the metals into the US,