IDK about them
But I believe that you can, but only if you can prove that you are a real, legal pharma or veterinary meds manufacturer.
Some junkies told me that less and less heroin contains fentanyl in the recent days.
I don't know if it has to do with China, or if American drug dealers realized that there's no point in cutting costs by tainting underdosed heroin with fentanyl. Dead customers won't be returning customers.
The Mexicans can't make any fentanyl themselves. They're just too stupid for that.
They only make meth, and import the precursors (usually pseudoephedrine) from China. They need a Mexican chemist from a university to make what an American high school dropout can make in his basement by just reading some stuff over the internet.
Mexican can only make tacos, and they aren't too good at that either. Any foreign tourist who eats them gets the runs.
Please read above.
Maybe they aren't as smart but they are more consistent.