Ammonium sulphate N:21.0% Fertilizer 1. N Content:20.5%Min 2. Moisture:1.5%Max 3. Appearence: white 4. Type: Artificial AS The ammonium sulphate has two grade, they are industry grade and agricultural grade, both of them have two type: granule and power. And the price is up to the resources and technical craft. Usage: mainly use in fertilizer, its advantage is less absorb moisture compared to other fertilizer , also use in industry , pharmaceuticals, textiles, welding industry, dyeing auxilizries of acid dyes, deliming agent of leather, beer making, chemical agent storage battery making, making compound fertilizer. 25/50kg per bag or jumbo bag or as the custemer's requirement.