PRATHYUSHA CHEMICALS AND FERTILISERS LTD. Address: IDA, E-Bonangi, Parawada Mandal, Dist. Visakhapatnam-531 021, Andhra Pradesh, India Contact Person: Mr. V. Sudeer Manufacturer of Potassium Bisulfate (Fused/Crystalline), Sodium Bisulfate (Fused/Crystalline)