Currently the United Kingdom has concluded negotiating its exit from the organisation and its institutions following a referendum in 2016 which resulted in a narrow majority vote in favour of leaving and was expected to officially leave on 29 March 2019 but had sought an extension until 12 April ( If it couldn’t pass the Withdrawal Agreement) and was extended until 31 October before a third extension was granted by the EU in October 2019 to 31 January 2020.