I'm not sure that assertion by the US Commerce Secretary is holding up a months later. Apparently "Huawei has seen a resurgence in its premium smartphone sales since it released its Mate 60 series" (the phone model in question): https://www.reuters.com/technology/apples-china-iphone-sales...
The AI acellerator is Huawei Ascend 910B which is comparable to the NVDIA A100. And the latest Kirin chips are made by SMIC. The sales of the phones are in the millions and it is the main reason for Apple's declining sales in China.