“...China already has had a number of high-profile failures, including the closing last week of Wuhan Hongxin Semiconductor Manufacturing, which shut operations after a projected investment of $18.5 billion. Backed by the Wuhan local government, Hongxin was supposed to produce 7-nanometer chips...”
https://asiatimes.com/2021/03/chinas-low-growth-target-reflects-tech-war-drag/
A friend installs 5nm chip machines in Taiwan and S. Korea. There’s a standing joke about China being so inept they couldn’t even steal enough design information to make usable 7 nm chips much less the 5nm