Polymers of styrene, in primary forms:
| Subheading | Description | General | Special | Other |
|---|---|---|---|---|
| 3903.11 | Polymers of styrene, in primary forms | — | — | — |
| 3903.19 | Polymers of styrene, in primary forms | — | — | — |
| 3903.20 | Polymers of styrene, in primary forms | — | — | — |
| 3903.30 | Polymers of styrene, in primary forms | — | — | — |
| Polystyrene: | ||||
| 3903.90 | Other: | — | — | — |