Supreme Petrochem Ltd is an Indian company mainly engaged in styrene business. The company's main operating segment is the styrene business. The company manufactures Polystyrene (PS), Expandable Polystyrene (EPS), Styrene and other polymer based composites and composites, Extruded Polystyrene Insulation Board (XPS), Styrene Methyl Methacrylate (SMMA) at manufacturing units located in Amdosh District, Raigad, Maharashtra and Manali. news City, Chennai, Tamil Nadu. The company's product range includes General Purpose Polystyrene (GPPS), High Impact Polystyrene (HIPS), Ready Mixes and Composites, SMMA and Composites, Expandable Polystyrene (EPS) and XPS INSUboard.