Banned by China. Probably more of a political/economic move than a real safety concern.
https://en.wikipedia.org/wiki/Food_safety_in_China
I enjoy unusual Asian foods but for me "made in China" is a warning label for foods and I understand that many Chinese people think the same thing. China has terrible problems with heavy metal contamination of soil and unlike tritium from Fukushima those elements get concentrated dangerously as you go up the food chain