Tri-benzene vinegar, an organotin compound used as a fungicide, has been proven to be a major threat to human health and has a serious and long-term impact on the natural environment and ecosystems, which has been banned from manufacture and use in many countries. February 2009, Taiwan prosecutors cracked local unscrupulous businessmen from China smuggled three benzene vinegar tin and other highly toxic banned drugs, mixed with other raw materials made of black-hearted pesticides sold for profit, has been in the market for more than half a year.