So far, We have produced and exportAS with good quality and good price toall over the worldfor more than 10 years. ----------AS-------- 1. Commodity: Ammonium Sulphate(AS) 2. Specification: TOTAL NITROGEN PERCENT BY WEIGHT : MIN 21.0% FREE ACIDITY (H2SO4) PERCENT BY WEIGHT : MAX 0.03% MOISTURE : MAX 0.2% APPERANCE: WHITE/OFF WHITE COLOUR, CRYSTALLINE 3. Packing: 50kgs per bag ----------------------- If you are interested in this product, please contact us without any doubt and delay. We may send our products sample to you by mail service asap if necessary just let us know, and we also can offer you a good price.