December 10, 2011   Buyers limit purchases; China vitamin A prices dip further   An eFeedLink Exclusive                 Prices fell significantly.   Prices of vitamin A in China Region  Country origin Price as of Nov 18 (RMB/kg) Price as of Dec 5 (RMB/kg) Price change (RMB/kg) Beijing Imported 144-149 133-138 -11 Local ...