Chinese technology giant Huawei, which is threatening to lose Android because of US sanctions, introduced a new operating system on its mobile phones on Friday.
The system, dubbed "Harmony OS", was introduced by CEO Richard Yu at a Huawei conference in Dongguan, southern China.
Huawei, the world´s second-largest smartphone group, found itself in May amid a trade war between Beijing and Washington over technological competition.
Huawei has been trying since 2012 to have its own operating system.
Huawei´s leading 5G network was on the Trump administration´s blacklist on suspicion of facilitating Chinese intelligence spying, a charge it vehemently denies.
China on Thursday condemned the new rules announced by Washington late Wednesday, which bans technology giant "Huawei" and other Chinese companies to sign contracts in the US markets, and accused Washington of "abuse of power."
These temporary rules will prevent any US federal agency from acquiring telecommunications equipment or technology from those Chinese companies from August 13.
Huawei is also facing a ban on US companies for selling technology equipment. The ban is expected to come into effect in mid-January.
Huawei announced that it would challenge the measures before the US Supreme Court.
