December 9, 2011   Sharper falls in China biotin prices   An eFeedLink Exclusive             Prices were lower.   Biotin prices in China Region Price as of Oct 31 (RMB/kg) Price as of Dec 6 (RMB/kg) Price change (RMB/kg) North 154-169 144-159 -10 South 156-171 146-161 -10 RMB1=US$0.1573 (Dec 9) Most buyers had excess s ...