Ferrous Sulphate (Feso4 7H2O) & Zinc Sulphate (Zeso4 7H2O) used as micronutrient mixture
for fertilizer in  Agriculture Industry, Pharmaceutical's Industries, Leather Industries,
Ink & Dies,ETP etc.                                                                                                                                                                                         

Copper Sulphate (Cuso4 7H2O) Blue Vitrol used as Insecticides / Pesticide in Agriculture
Industry & color mordant in Textile Industry.