Almost half of １,１７６ inspected Chinese dairy facilities are ordered to cease operation as government audits become more stringent following the incident where six babies perished and ３００,０００ fell ill due to a chemical melamine added to powdered milk.

http://www.france24.com/en/20110402-many-china-dairies-shut-safety-audit 
http://www.bbc.co.uk/news/world-asia-pacific-12947213