# HTS 9902.10.21: Preparations containing 12-hydroxy-9-octadecenoic acid (Ricinoleic acid) of a kind used as a diluent in lubricants (CAS No. 141-22-0) (provided for in subheading 3811.21.00)

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

## Duty rates

- **General (MFN) rate:** 4.8%
- **Special / FTA rate:** No change
- **Column 2 rate:** No change
- **Corpus rank:** #4015 of 6827 among dutiable tariff lines
- **Percentile among ad-valorem lines:** 70th of 13,544 rated lines

## Classification path

- **Section XXII:** [Special Classification Provisions](https://plaintariff.com/section/xxii-special-classification-provisions)
- **HTS code:** 9902.10.21

## Related tools

- [Tariff calculator](https://plaintariff.com/tools/tariff-calculator)
- [Search HTS codes](https://plaintariff.com/search)
- [Methodology & sources](https://plaintariff.com/methodology)

---

*Source: U.S. International Trade Commission Harmonized Tariff Schedule. HTML canonical: https://plaintariff.com/heading/99021021-preparations-containing-12-hydroxy-9-octadecenoic-acid-rici*