Huawei, China's first global tech brand, is at the center of a battle between Washington and Beijing over the ruling Communist Party's ambitions to develop companies that can compete in robotics and other fields.
The Trump administration says Beijing's efforts are based on stealing or pressuring companies to hand over technology. Washington and other trading partners say the Chinese campaign violates its free-trade obligations.
Washington has labeled Huawei a security threat, an accusation the company denies. Some officials also see the rise of Huawei and other Chinese tech competitors as a potential threat to US industrial leadership.
Huawei spends about US$12 billion ($18.5b) a year on US semiconductor chips and other components. The company said the US export curbs might cut its projected sales by US$30b over two years.
Since then, authorities have said vendors will be allowed to supply technology that is available from other sources. That came after American technology suppliers warned they would be hurt by the loss of one of their biggest customers.
Huawei also has developed its own chipsets for low-end smartphones and servers, though it still needs US vendors for its most advanced products.
Yu said Huawei's first device using HarmonyOS would be released Saturday under its Honor brand.
Huawei, headquartered in the southern city of Shenzhen, near Hong Kong, reported earlier its smartphone shipments rose 24 per cent in the first half of 2019 over a year ago to 118 million.
"We could have done better, but due to the challenges we face in the international market, our shipments dropped a bit," Yu said.
Huawei reported that sales in the six months through June rose 23.2 per cent over a year earlier to 401.3b yuan ($87.8b). That was up from 2018 growth of 19.5 per cent, but Chairman Liang Hua warned Huawei will "face difficulties" in the second half.
Liang said then that Huawei was reviewing its product lineup to make sure it could fill orders without US components if necessary.
On Friday, Yu said HarmonyOS is designed to operate on PCs and tablet computers as well as smartphones, allowing users to integrate music and other functions across multiple devices.
HarmonyOS will be open source to allow outside developers to contribute to its development, Yu said.
"We want to build a global operating system, so it will not be used by Huawei alone," he said.
- AP