"We have made it clear to the US administration at the highest level that we would be deeply concerned about measures that affect the EU industry," Commission spokesman Margaritis Schinas told a news conference.
"We would be taking appropriate measures to defend EU industry and we stand ready to react swiftly and appropriately in case our exports are affected by any restrictive measures by the United States," he continued before adding: "No, we are not in a trade war."
The US Commerce Department has recommended that President Donald Trump impose steep curbs on steel and aluminium imports from China and other countries ranging from global and country-specific tariffs to broad import quotas, according to proposals released on Friday.