Not a source board.
OP Your post is confusing.
You say you are moving to china yet you want a source that ships abroad.
Why?
You are already in china?
Absolutely no chinese lab will ship to the us or eu at least not directly.
They already make tons of money legally by making the powder so why risk it?
A chemical lab selling controlled sustances to countries where they are banned would be a scandal, sure to get death sentences to keep the media happy.