Disagreements over China’s Huawei Technologies do not pose a threat to intelligence-sharing ties between Britain and its allies, the head of the UK’s GCHQ spy agency said in an interview released on Thursday. Britain granted Huawei a limited role in its 5G network in January, defying calls to ban the company over security concerns and U.S. threats to cut off valuable intelligence feeds with countries that use the Chinese firm’s equipment. Prime Minister Boris Johnson has since come under renewed pressure from Washington and lawmakers in his own party, and London is now looking at the possibility of phasing Huawei out of its 5G network completely by 2023, officials say.