August 12, 2011   China biotin market growth cools in July   An eFeedLink Exclusive             Prices were slightly higher.   Biotin prices in China Region Price as of Jul 4 (RMB/kg) Price as of Jul 30 (RMB/kg) Price change (RMB/kg) North 153-168 155-170 2 South 155-170 157-172 2 RMB1=US$0.1559 (Aug 12) Low buying int ...