The US Department of Commerce has issued affirmative determinations of anti-dumping and countervailing duties against 10 countries after investigations into corrosion-resistant steel products.

The determinations cover $US2.9 billion ($A4.5 billion) in imports from Australia, Brazil, Canada, Mexico, the Netherlands, South Africa, Taiwan, Turkey, the United Arab Emirates and Vietnam, the US Commerce Department said in a statement.

“Commerce made its final determinations that imports of CORE into the United States from ten trading partners were being dumped and/or subsidised,” the department said.

Corrosion-resistant steel is used to build cars, appliances and buildings, the department said.

“American steel companies and workers deserve to compete on a level playing field,” Under Secretary of Commerce for International Trade William Kimmitt said in a statement.

The International Trade Commission – a US federal agency – will now make its own determination of injury to the domestic steel industry, the department said.

“If the ITC makes an affirmative, trading partner-specific injury determination, Commerce will issue AD and CVD orders,” the Commerce Department said.

This post was originally published on Michael West.