Sub Headings of 3903
| 3903.11.00.00 | Expandable |
| 3903.19.00.00 | Other |
| 3903.20.00.00 | Styrene-acrylonitrile (SAN) copolymers |
| 3903.30.00.00 | Acrylonitrile-butadiene-styrene(ABS) copolymers |
| 3903.90.10.00 | Methyl methacrylate-butadiene-styrene (MBS)copolymers |
| 3903.90.50.00 | Other |