September 29, 2008 China's sulphate feed additive prices fall on weak trade An eFeedLink Exclusive Prices were lower. Transacted prices of sulphate feed additives in China Variety Price as of Aug 16 Price as of Sep 29 Price Change (RMB/tonne) (RMB/tonne) (RMB/tonne) Cupric sulphate 15900-16500 15800-16200 -300 to -100 ...