Hardly a secret.<p>China is building a complete computing supply chain. From mining, semiconductor fabs to operating systems, AI platforms ... the works.<p>Huawei is a key part of that. For two obvious reasons. It is a massive elite engineering company. And it was one of the first major companies to be hit by US sanctions.<p>How are they doing? Hard to tell. But the mentioned plants are not new; they were announced back when Trump first hit Huawei with major sanctions.<p>There are a lot of rumours, for Huawei, in particular about an upcoming 5G phone. If they turn out to be true, it would mean that the Chinese would have broken the US monopoly on 5G radio chips for phones (which would be a significant breakthrough - one of many needed).