I've been around this underground peptide/steroid industry for nearly 2 decades. The quality companies in china never get shut down. No government can go after them. The chinese government doesn't care and are aware of it. The only vendors I see disappear are those scamming people in one way or another. Whether it be low quality, intentional underdosing, dirty products giving people infections, or straight bunk items. Or some backyard reseller. Mostly in the US or UK. If a chinese provider does get shut down, it isn't because some foreign government entity or company went after them. It's because of something else and they're using this as their excuse. Tirz isn't leaving the market, just like nothing else has when pharma went after them.
Before you start sending me articles and court documents of places that were shut down, re-read this until you understand. Maybe your favorite vendor gets shut down. It's probably a good thing.