The current feud is about contaminated heparin that has apparently caused 81 deaths in the United States. To a lay man it might seem like a simple issue of contamination happening at a local facility in China that has weak processes. Read this link in The New York Times
There is an amusing paragraph in the middle: China has in recent years exported poisonous toothpaste, lead-painted toys, toxic pet food, tainted fish and now, contaminated medicine.
All this seems to be part of a larger battle to assert dominance. This is not a political blog, but the point of putting it here is that your products may suffer becuase of your country's relation with your customers' country. Judging by these events I think it might be prudent for small manufacturers to avoid certain markets altogether. In short run it might seem to be a bad business idea, but in the long term it should work out.
Moral of the story: Just because you have a market, it may not be a good idea to sell there.