We have been very clear that we do not seek to rejoin the customs union, but our co-operation is already delivering results, particularly in relation to growth and business. We recently secured a £250 million Czech investment in Rolls-Royce small modular nuclear reactors, and a further £600 million investment by Polish firm InPost in its UK operations, and as I have said, we have also signed deals on migration with Serbia, Kosovo, Slovenia and Slovakia.