China has reported its factory activity contracted for a seventh straight month in October, reflecting pressure from higher U.S. tariffs and sluggish domestic demand.

That ban has prevented companies like Google from supplying new Huawei devices with its version of Android OS. Harmony, which is called "Hongmeng" in Chinese, "is completely different from Android and iOS," Apple's operating system, said Richard Yu, the CEO of Huawei's consumer business group. Yu said that Huawei can start using Harmony in smartphones "at any time," but he said that the company is giving "priority" to Android right now. "We will switch to [the] Harmony system when we can't use Android," he said, adding that it is "not that difficult" to migrate from Android to Huawei's own system. Consumers who already owned Huawei smartphones were largely unaffected, Google said in May.