Supreme Petrochem Ltd. engages in the business of styrenics and manufactures Polystyrene, Expandable Polystyrene, Masterbatches and Compounds of Styrenics and other Polymers, Extruded Polystyrene Insulation Board and Styrene Methyl Methacrylate. The company was founded on December 14, 1989 and is headquartered in Mumbai, India.