European Union officials have drawn up plans to impose levies on American imports, but questions abound about whether they would go through with them.

EU trade ministers have agreed that U.S. President Donald Trump’s 30% tariffs announced on the European Union are “absolutely unacceptable,” and they are studying a new set of countermeasures to respond to the move.

The EU says the U.S. is resisting efforts to strike a trade deal and warned of countermeasures if no agreement is reached with U.S. by Aug. 1.