UK passports are produced by non-UK companies.
The new UK passport to be issued after Brexit will be made in France, the current British manufacturer has said. [...] Gemalto, which has its headquarters in Paris and has a factory in Fareham, said it was aware of the reports regarding the contract to produce the new UK passport. [...] A spokeswoman for the Home Office said: "The chosen company demonstrated that they will be best able to meet the needs of our passport service with a high quality and secure product at the best value for money for our customers and the taxpayer."