Levi jeans and bourbon could be hit with a 25% import tax by the European Union if US President Donald Trump imposes tariffs on European steel and aluminium.
The EU Commissioner for Trade told the BBC the items were on a draft list of US goods to be taxed.
Last week, Mr. Trump said he would tax imported steel, declaring: "trade wars are good".
His comments have prompted reactions of consternation around the world.
British Prime Minister Theresa May expressed her concern in a telephone call to Mr. Trump on Sunday.