The European Commission is expecting to hear from the United States in the coming days how the European Union can avoid USA import tariffs on steel and aluminum, Commission President Jean-Claude Juncker said on Tuesday.
A former prime minister of ex-Soviet Latvia, Dombrovskis did not elaborate.
Other MEPs used the plenary session to put forward their stance on the UK's departure from the EU.
The European Parliament - which will have the final veto on any Brexit deal - will vote on Wednesday on a proposal to offer Britain an "association agreement" which it says would be broader than a trade deal.
"The UK is choosing to leave the union, the single market and the customs union, we have noted that".
Companies in Britain and the European Union face an extra 58 billion pounds ($80 billion) in annual costs if there is a no-deal Brexit, with Britain's vast financial sector set to be the worst-hit industry, according to a report on Monday.
May, but mainly repeating the red lines that we've already known for two years", said Guy Verhofstadt, representative of the European Parliament for Brexit, "the problem is today we don't have a proposal from the United Kingdom side on the future relationship.More news: UP Bypolls: 'Parties Indulging In Negative Politics,' Says Yogi Adityanath
Barnier lauded the rules the European Union created together with Britain for 44 years to create the "social market economy" that shelters citizens and workers from excesses of deregulation.
A series of speeches by May and her senior ministers have done little to satisfy Brussels, and Juncker warned it was particularly crucial for London to clarify its plans for the sensitive issue of the Irish border.
After Theresa May rejected EU proposals for Northern Ireland effectively to remain in the customs union, Mr Tusk warned that progress in Brexit talks could be put at risk if there was "backsliding" on principles agreed a year ago. The UK will look to match European Union regulatory standards (and possibly adopt identical rules) to ensure that trade in most goods remains as free as possible.
The U.K. and European Union "shall refrain from any measures which could jeopardize the attainment of the objectives of this agreement", the draft treaty says.
"The feedback from the financial sector itself is that they are prepared, they are realistic not to take too much risk as their duty is to serve their clients", Katainen said.
In practice however many financial services firms are already taking steps to implement their contingency plans, building their out EU-based operations and moving jobs and roles there.
"The EU is bullying us", he said, before urging Theresa May "to do what Trump has done and stand strong against the European Commission, against the unelected bullies".