From November 2007 to February 2009, despite knowing that it was illegal, Hu Wenbiao and several other heads of Biaoxin Chemical Co. Ltd. in Yancheng, east China's Jiangsu Province, ordered to discharge industrial wastewater contain-ing toxic substances into local rivers, seriously polluting the water source of two local tap water companies. In February last year, the water supply was cut off for more than 66 hours because of the pollution, affecting more than 200,000 nearby residents.