https://www.reuters.com/article/us-britain-huawei-browne/john-browne-steps-down-as-huawei-uk-chairman-ahead-of-government-ban-idUSKCN24F120 >Former BP chief John Browne is stepping down as chairman of Huawei's UK operation ahead of the British government banning the Chinese company from the country's 5G networks later on Tuesday.