German Chancellor Angela Merkel (L) and President Donald Trump arrive at the Hotel San Domenico during the Summit of the Heads of State and of Government of the G7, the group of most industrialized economies, plus the European Union, on May 26, 2017 in Sicily.

The European Union will start charging import duties of 25 percent on a range of U.S. products from Friday after Washington imposed tariffs on EU steel and aluminum at the start of June, the European Commission said on Wednesday.

The Commission formally adopted a law putting in place the duties on 2.8 billion euros ($3.2 billion) worth of U.S. goods, including bourbon and motorbikes.