Earlier quoted context omitted.
Chinese markets strike me as absolutely brutal. I mean, there is always some theft, fraud etc. in any market (one of the oldest written records of humanity is a customer complaint about bad copper sold by a certain Mesopotamian merchant called Ea-nasir in 1750 BC), but stuff like poisoning your customers with Sudan Red, or adding melamine to yoghurt, or frying food on gutter oil seems to always be reported from China…
I guess it was quite a long time ago now but https://en.wikipedia.org/wiki/1985_diethylene_glycol_wine_sc...
There were several recent affairs in Europe with adulteration of suspect booze in the black (or gray) market with methylalcohol. That would fit right in.