Labour is likely to announce that it wants to stay in a modified version of the EU customs union indefinitely, according to three members of the shadow cabinet.

Senior Labour figures, including those from Brexit-supporting areas, said that the move was intended to make a major break from the government’s policy.

Jeremy Corbyn’s party is likely to say that it wants to negotiate to be part of a new UK-EU customs union very similar to the one at present. It will also say that Britain should be part of future trade deals done by the EU. Critically, under Labour Britain would demand a seat at the table, on the EU side, in future trade talks between the EU and other countries, something that would have