Canada is poised to announce a ban on the use of China's Huawei Technologies Co Ltd and ZTE Corp 5G gear, joining the rest of the so-called Five Eyes intelligence-sharing network, a source familiar with the matter said on Thursday. The decision - widely expected - had been delayed amid diplomatic tensions with China. The rest of the Five Eyes network - which consists of Canada, the United States, Britain, Australia and New Zealand - has already banned the gear.