I can go completely psycho with research when something catches my interest (you may have noticed lol), but China is a fucking black hole when it comes to internal law enforcement, and it's not for lack of trying. I have tools that translate Chinese news and searches it, but there's been nothing on the raws crackdown, or vendors.
The closest news on these topics concerned a crackdown on local pharmacies illegally selling certain meds without prescriptions (within China), with most just issued fines, and big offenders "referred" to "The People's" criminal prosecutors.
I've also looked at statements from all the government agencies that could be involved, etc, and absolutely nothing regarding the Raws situation or QSC.
So the answer is, unless someone ties Tracy down and injects truth serum, we'll probably never get the full story.
It's possible China doesn't want to air it's drug precursor "dirty laundry" in a way visible to its foreign critics like the US, which could be used against China.