https://tech.newstatesman.com/security/use-of-huawei-in-uk-5g-networks-would-be-madness-say-us-officials

The use of Huawei technology in the United Kingdom’s 5G networks would be “nothing short of madness”, senior United States officials have reportedly warned British ministers.

Last year, the Chinese firm was placed on a trading blacklist by the Trump administration amid fears it could be forced to gather intelligence on behalf of the Chinese government. But the company, which sells smartphones and other telecommunications equipment, has repeatedly denied this allegation.