Prime Minister Theresa May has ruled out the customs union option, however.

It also puts Canada outside the EU's customs union and single market.

Britain has since then ruled out a customs union with the EU.

Britain's health minister, Jeremy Hunt, ruled out staying in the customs union.

This week, we're combing through the fine details of the customs union.

Among other things, Labour is calling for a permanent UK-EU customs union.

She has also rejected staying in a customs union with the EU.

As Bloomberg reminds us, the customs union is essentially about common tariffs.

You cannot be outside a customs union and not have a border.

It was much the same with customs union and the Irish border.

Rebel Tories are determined to force a vote on a customs union.

Prime Minister May insisted that Britain was leaving the EU customs union, however.

For example, internal market, customs union, Article 50 and so on.

It believes Britain's proposals risk affecting the bloc's single market and customs union.

Britain has to remain in the customs union with the rest of Europe.

Only with customs union with Russia can Ukraine balance its trade, he said.