January 6, 2017 Strict pollution control limits China vitamin B12 output An eFeedLink Exclusive          Prices were stable. Prices of local vitamin B12 in China (RMB/kg) Price quotes as of Dec 19 Price quotes as of Dec 31 Price Changes  240-250 240-250 0 Prices are representative and for reference only. RMB1=US$0.1450 ...