Section 07 PLASTICS AND ARTICLES THEREOF; RUBBER AND ARTICLES THEREOF 39 Plastics and articles thereof 39 03 Polymers of styrene, in primary forms. 39 03 11 -- Expansible 39 03 11 00 -- Expansible Commodity Code Description 39 03 11 00 00 -- Expansible 39 03 19 00 00 -- Other 39 03 20 00 00 - Styrene-acrylonitrile (SAN) copolymers 39 03 30 00 00 - Acrylonitrile-butadiene-styrene (ABS) copolymers 39 03 90 00 00 - Other