| Tariff Classification |
| section 07 | Plastics and articles thereof; rubber and articles thereof |
| chapter 39 | Plastics and articles thereof |
| 39.11 | Petroleum resins, coumarone-indene resins, polyterpenes, polysulphides, polysulphones and other products specified in Note 3 to this Chapter, not elsewhere specified or included, in primary forms: |
| 3911.20 | －Poly(1,3-phenylene methylphosphonate) |
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