Section 07 Plastics and articles thereof; rubber and articles thereof 39 Plastics and articles thereof 39 15 Waste, parings and scrap, of plastics 39 15 20 Waste, parings and scrap, of polymers of styrene Commodity Code Description 39 15 20 00 Waste, parings and scrap, of polymers of styrene 39 15 20 10 Of non-rigid cellular products 39 15 20 90 Other