Trump is being mocked nn Chinese social media for giving Huawei free publicity
President Donald Trump declared a national emergency over "threats against information and communications technology and services" on Wednesday.
The executive order is expected to precede a ban on US companies buying Huawei telecoms equipment.
The order was reportedly the subject of "intense discussion" on Chinese social media with Weibo users deriding Trump.
Huawei said being locked out of America's 5G network will end up "harming the interests of US companies and consumers."