Commodity2005200620072010
Disodium sulphate$7,901$4,272$41,487 
Sodium sulphates other than disodium sulphate$5,420$4,261$241,454 
Sulphates of magnesium  $40,683 
Sulphates of aluminium$880,515$1,150,830$382,448 
Sulphates of chromium$961   
Sulphates of nickel $88,118  
Sulphates of copper$252,734$791,406$304,107 
Sulphates of zinc$33,839$175,496  
Sulphates of barium$1,608   
Sulphates (excl. of 2833.21-2833.27) $140,050$266,528$290,667
Alums $1,180  
Peroxosulphates (persulphates) $94,031  
Total$1,182,978$2,449,644$1,276,707$290,667