Johnson's much-trumpeted FTAs “barely scratch the surface of the UK’s challenge to make up the GDP lost by leaving the EU”.

The EU has in place, or is negotiating, trade agreements with countries and regions around the world.

The EU-Vietnam trade agreement, the “most modern and ambitious agreement ever concluded between the EU and a developing country”, got Parliament’s backing on Wednesday.

The EU and UK can’t agree on the best approach to state aid rules. However, it’s in the best interests of both parties to compromise on the issue.

The European Union and Vietnam have recently finished negotiating a Trade Agreement and an Investment Protection Agreement.

All trade deals combined worth less than 50p per person a year, analysis of government figures shows.

The European Union (EU) and Vietnam on Sunday signed a long-awaited free trade deal that will slash duties on almost all goods, an agreement that pushes back against a rising tide of global protectionism and hailed as a "milestone" by Brussels.

The EU is one of Vietnam’s biggest trading partners, accounting for nearly a one-fifth of the country’s exports.

As the UK prepares to leave the EU, we look at Brexit's potential effect on Southeast Asian economies.