Potassium Magnesium Sulphate(PMS),K2O:24% *K2O:24% , Mg:6%, *S:17% , Cl:2% * ... .0~9.0 *Insoluble matter:1%max Potassium Magnesium Sulphate (PMS),K2O:24%Specification: Element Specification Results of Inspection K2O 24 ... : as basal fertilizer, topdressing and foliage application. Potassium Magnesium Sulphate(PMS),K2O:24%