Britain must leave the EU customs union to strike new trade deals after Brexit, the country's trade minister said in a speech in London on Tuesday, widening a major fissure within British politics over future trade relations with the bloc.
UK International Trade Secretary Liam Fox said 90 percent of global growth in the next 10 to 15 years will be outside Europe, and remaining inside the tariff-free EU trade zone would limit Britain's opportunities to strike new trade deals with the world's fastest-growing economies.
"We cannot afford to be bound by the practices and the patterns of the past. We have to take the opportunities available unfettered by those who would make the rules on our behalf," he said.
But Fox was contradicted by the trade department's former top civil servant, Sir Martin Donnelly, who left his job last year, who said quitting the customs union was like "giving up a three-course meal ... for the promise of a packet of crisps."
He told BBC Radio 4's Today programme that 60 percent of Britain's trade is with the EU or with countries that have EU trade deals.
"The particular choice that I heard Sir Martin Donnelly outline - that was a choice between the European Union and trade opportunities elsewhere and the continuation of EU trade agreements - I don't believe that is the choice that we face," Fox said, when asked to respond to Donnelly's comments.
And commenting on Sir Martin's claim that Britain would need a Fairy Godmother to get a good EU deal Fox said that Britain needed to look "beyond where we are today."
"I understand as I say that those who have been professionally committed to those for many years would want to adhere to them. I want to think beyond where we are today, to the opportunities available to (in) the future," he told reporters.
Fox spoke a day after opposition leader Jeremy Corbyn said his Labour Party would "seek to negotiate a new, comprehensive UK-EU customs union to ensure there are no tariffs with Europe."
The issue is a major fault line in UK Brexit plans. While pro-Brexit politicians such as Fox argue for leaving the customs union and the EU's single market in goods and services, others want Britain to retain close ties with the EU to soften the economic shock of leaving.