A fair number of countries can't do the proper inspections required for this, either due to lack of resources or government corruption (or both). They could put a literal carbon copy of FDA standards into their regulations, but it's meaningless without enforcement.
See the HIV infected blood products scandal with Bayer. The infected blood was pawned off on the third world since they (correctly) figured they'd have much less success suing them.
You can tell what a bunch of assholes Bayer is made up of by the fact they were even willing to entertain purchasing Monsanto. Which they ended up doing. The lawyers are clearly in charge there.
Hopefully those countries don't reduce standards due to lobbying.