It was not immediately clear what type of document the president signed.
Name SearchWatch Service' Malcolm Turnbull of Australia and President Mauricio Macri of Argentina, the White House said.
The White House said Wednesday that Mexico, Canada and other countries may be spared from tariffs under national security "carve-outs".
"The loss of exports to the US, combined with an expected massive import surge in the European Union, could cost tens of thousands of jobs in the European Union steel industry and related sectors", said Axel Eggert, head of steel association EUROFER. The announcement left open the possibility that the process for implementing the penalties is still open to negotiation.
The president suggested earlier Thursday he would provide temporary exemptions for Canada and Mexico as he aims to revise the North American Free Trade Agreement.
The Trade Partnership projected that Trump's tariffs could create 33,464 steel and aluminum jobs. Higher domestic steel prices will lead to higher consumer prices for cars, appliances and new homes. But President Trump's tariff exemption is hardly a gift horse and there's no telling whether an all-out trade furor between the USA and its top strategic allies will ensue.
"All of them will see an increase in their cost of doing business", Isely said.
"The biggest priority as a Congressman representing New Mexico is ensuring our local businesses are not adversely impacted by what the finalized package of tariffs includes and how it is applied", Pearce said.
As a result of the current steel and aluminum tariffs, local agriculture could see economic woes.
USA automakers hope that there the is scope for workarounds for companies whose raw material costs will be impacted by a 25 per cent levy on steel and 10 per cent on aluminum announced by Trump.
"We have not achieved the progress we expected", he said.
The president did not say whether he will sign tariffs on steel and aluminum imports at the meeting.
"We have the ability to adjust and adapt to a variety of market changes around the world and that will be our approach on this issue as well", the company added.
This would not be the first time that countries have contested American steel plans before the WTO.
But the goods deficits are more than made up by the service surplus.
Countries can challenge other nations' tariffs through a panel of judges at the World Trade Organization in Switzerland.
Following the announcement of the United States import tariffs, the Mexican government recalled that, more than two years ago, in light of the global steel overcapacity, it took "timely" and "effective" measures to defend its industrial sector, raising import tariffs.
"Obviously, if the price of aluminum goes up, it has an impact", he said.
And Sen. Jeff Flake said he was already working on legislation to nullify the tariffs.
Other nations have threatened reprisals, and tensions are escalating.
Trade partners and close allies warned the tariffs could backfire Friday, promising duties on American goods - from peanut butter to bourbon - in retaliation.
The response is a familiar one - in 1995, the United States banned Mexican trucks from driving more than a short distance over the border, and in retaliation, Mexico placed tariffs on food items from ketchup to frozen corn in 2009.