September 2, 2008 China's sulphate feed additive prices fall on weak demand An eFeedLink Exclusive Prices were lower. Transacted prices of sulphate feed additives in China Variety Price as of Aug 18 Price as of Sep 1 Price Change (RMB/tonne) (RMB/tonne) (RMB/tonne) Cupric sulphate 16,200-16,700 16,000-16,500 -200 Ferro ...