... Company in China.We are a professional exporting company of fertilizer raw material for more than 15 years!Ammonium sulphate is ... our specifications: Usage: Mainly use in fertilizer, its advantage is less absorb moisture comparedto other fertilizer , also use in industry ,pharmaceuticals,textiles ... 50kg pp bags ,pallet available,depend on custmer requirement 21% N Fertilizer Ammonium Sulphate