[Zhukov]

Quarantine, son. All that Chinese fish sauce could get tipped into a river somewhere and contaminate the delicate ecosystem of fishes we have or something.

I suppose banned may (or may not) be a slightly loaded term to use; it's not as if we have gangs of men armed with axes destroying crates of fish sauce found at the wharf hidden under boxes of mince pies. But you can't get any in shops and They DO hassle you at the airport for it. It's on the prohibited list, let's leave it at that.