# HTS 9902.10.67: Poly(2-methylpropene) (polyisobutylene), other than elastomeric (CAS No. 9003-27-4) (provided for in subheading 3902.20.50)

> Plain-language tariff reference from the USITC Harmonized Tariff Schedule on [PlainTariff](https://plaintariff.com/).

## Duty rates

- **General (MFN) rate:** 5.1%
- **Special / FTA rate:** No change
- **Column 2 rate:** No change
- **Corpus rank:** #3712 of 6827 among dutiable tariff lines
- **Percentile among ad-valorem lines:** 72nd of 13,544 rated lines

## Classification path

- **Section XXII:** [Special Classification Provisions](https://plaintariff.com/section/xxii-special-classification-provisions)
- **HTS code:** 9902.10.67

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*Source: U.S. International Trade Commission Harmonized Tariff Schedule. HTML canonical: https://plaintariff.com/heading/99021067-poly2-methylpropene-polyisobutylene-other-than-elastome*