The Commission shall immediately, and in any event no later than 18 May 2018, give written notice to the WTO Council for Trade in Goods that, absent disapproval by the Council for Trade in Goods, the Union suspends, from 20 June 2018, the application to the trade of the United States of import duty concessions under the GATT 1994 in respect of the products listed in Annex I and Annex II, so as to allow for an application of additional customs duties on the importation of these products originating in the United States.