UK passports are produced by non-UK companies.
Ironic or 'iconic': Post-Brexit UK passports made in EU February 22, 2020The UK will roll out new "iconic" blue passports for a post-Brexit Britain in March — but they will be produced in Poland by a French-Dutch company. The announcement that the company Gemalto had won the contract to produce the passports caused controversy in 2018. The UK government said the final stages of manufacturing will take place in the UK to "ensure no personal data leaves the country."