

A note: two of them. The remaining 1.3 billion didn’t come.
Jokes aside, it’s known for some time that some Chinese mercenaries are fighting on the Russian side. Some of them post on blogs or social media. Occasionally several have been noticed together. If their countrymen read the posts, they’ll both understand the war better, and mostly understand that it’s not worth joining.
It is understandable that they received their military training in the PLA. Because where else would a Chinese person receive training. However, it would be news if they were discovered to be active duty personnel from the PLA. (Then the question would arise of who allowed them to do that.) I have not yet read anyone saying that.
Note: design and licensing is a far cry for semiconductor fabbing, and not every country can do the latter.
Most countries depend ridiculously much on TSMC (from Taiwan), while TSMC depends ridiculously much on instruments from ASML (from the Netherlands). Grossly simplified, getting where those two currently are takes a decade, and by that time they’ll be a decade ahead (unless they get lazy).
As far as I recall, Samsung (South Korea) can fabricate large quantities of semiconductors on their own (but several times less than TSMC). Then come several Chinese companies, one in the US and one in Israel. Beyond that, there’s very small fish. The only European foundry worth mentioning (X-Fab) has dropped out of the top 10.