US government is sneaky, it won't push SMIC all the way like Huawei or else it would revolt and join hand with Huawei. It just limit SMIC above 10nm and need continue to buy from US for above 10nm.Gotcha, so until the supply chain is fully de-americanized this is just how it is.
Or going rogue, take TSMC fab at Nanjing and hand to Huawei.